From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AH8x226hEkAIJ4Lw5CI0rfRw7dwoMfs/TxUi65ydnWi982ge/5YmFpcSp6V1UIyLrOA8YSrJ6iWy ARC-Seal: i=1; a=rsa-sha256; t=1517501756; cv=none; d=google.com; s=arc-20160816; b=G4XNWW0QTfizGNtfvNqiaVySi+EKdcKO7cCBsmNtZFKuID7bD3b9r38jKOWr3kpMor 3GYBrvoi8aTWnL2FE+WxDLVg0WMRnBy8Bd19bESrqjvY/ljACkXUp6bacT132KXw9U+o BHiTxL9Zmp0YBBAMzQsxNyim5MMoFNn67TO9XjjSVkxrFzn0sOOsSLQUYlBGMCUgWD4Z ogqnv7pG8C1gSNtpslr0CMM3YRyx61urRSfZDX2UhpeeNQdcGHHxpwVozUsOM5ptURNe MBmnn67ni8wNgzFX4Yb1DpNiXdtJXTkItPUAzqbSO30VO+nbgz1spGK7yiWnOkgjwOdk b+LA== 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=qSeU0a0+rteJdgqTnbwhZUm6rr/XNtFm7kFJ+e1g3yo=; b=Dvg46R316R2USRI2Bl5rdSqxmaF5hO+9cSqRGf46dHVZRikm1cElh57SAWRS4l2y7m ZQX/9d22md1oQx1w8+36uHUz9PCFJYNLSfhnjYCOZHvKqPwh46E1qf3BGArBpr3RVknp jvMnl+DqTvVgiq9RRpIVccZ1gNQFCYmJ+TsOrOuU1cFpk5CTv7k6+jG/Z9LlweH+HIOD htC0HNZANQBsdzptFAcDvyP1AylahRF3xVrCEDjGN9tepdVsK+sUmJVgbPGVJCQX+t4t 2MyV630Y+hIzBf70z3A3I3XlMvGV+mSqV2wmlHzHSsWlSJ0lfDlRsdMpPVUDJspBg/yj nAaA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@wdc.com header.s=dkim.wdc.com header.b=JsrI1+g7; spf=pass (google.com: domain of prvs=563541312=stanislav.nijnikov@wdc.com designates 68.232.141.245 as permitted sender) smtp.mailfrom=prvs=563541312=stanislav.nijnikov@wdc.com Authentication-Results: mx.google.com; dkim=pass header.i=@wdc.com header.s=dkim.wdc.com header.b=JsrI1+g7; spf=pass (google.com: domain of prvs=563541312=stanislav.nijnikov@wdc.com designates 68.232.141.245 as permitted sender) smtp.mailfrom=prvs=563541312=stanislav.nijnikov@wdc.com X-IronPort-AV: E=Sophos;i="5.46,444,1511798400"; d="scan'208";a="173298239" 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 v4 03/10] ufs: sysfs: interconnect descriptor Date: Thu, 1 Feb 2018 18:15:39 +0200 Message-Id: <1517501746-19075-4-git-send-email-stanislav.nijnikov@wdc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1517501746-19075-1-git-send-email-stanislav.nijnikov@wdc.com> References: <1517501746-19075-1-git-send-email-stanislav.nijnikov@wdc.com> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1591215921810659694?= X-GMAIL-MSGID: =?utf-8?q?1591215921810659694?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: This patch introduces a sysfs group entry for the UFS interconnect descriptor parameters. The group adds "interconnect_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 | 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 8da7b84..099e6fa 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: February 2018 +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: February 2018 +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. diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c index 372e281..460378b 100644 --- a/drivers/scsi/ufs/ufs-sysfs.c +++ b/drivers/scsi/ufs/ufs-sysfs.c @@ -264,9 +264,27 @@ 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_default_group, &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