From: Bart Van Assche <bvanassche@acm.org>
To: "Bao D. Nguyen" <quic_nguyenb@quicinc.com>,
quic_cang@quicinc.com, quic_nitirawa@quicinc.com,
avri.altman@wdc.com, peter.wang@mediatek.com,
manivannan.sadhasivam@linaro.org, minwoo.im@samsung.com,
adrian.hunter@intel.com, martin.petersen@oracle.com
Cc: linux-scsi@vger.kernel.org, Alim Akhtar <alim.akhtar@samsung.com>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
Bean Huo <beanhuo@micron.com>,
Keoseong Park <keosung.park@samsung.com>,
Ziqi Chen <quic_ziqichen@quicinc.com>,
Al Viro <viro@zeniv.linux.org.uk>,
Gwendal Grignou <gwendal@chromium.org>,
Eric Biggers <ebiggers@google.com>,
open list <linux-kernel@vger.kernel.org>,
"moderated list:ARM/Mediatek SoC support:Keyword:mediatek"
<linux-arm-kernel@lists.infradead.org>,
"moderated list:ARM/Mediatek SoC support:Keyword:mediatek"
<linux-mediatek@lists.infradead.org>
Subject: Re: [PATCH v4 1/1] scsi: ufs: core: add device level exception support
Date: Fri, 21 Mar 2025 09:31:54 -0700 [thread overview]
Message-ID: <6cc97521-aba1-439b-9c06-a5a06adea498@acm.org> (raw)
In-Reply-To: <4370b3a3b5a5675bb3e75aaa48a273674c159339.1742526978.git.quic_nguyenb@quicinc.com>
On 3/20/25 8:18 PM, Bao D. Nguyen wrote:
> The ufs device JEDEC specification version 4.1 adds support for the
> device level exception events. To support this new device level
> exception feature, expose two new sysfs nodes below to provide
> the user space access to the device level exception information.
> /sys/bus/platform/drivers/ufshcd/*/device_lvl_exception_count
> /sys/bus/platform/drivers/ufshcd/*/device_lvl_exception_id
>
> The device_lvl_exception_count sysfs node reports the number of
> device level exceptions that have occurred since the last time
> this variable is reset. Writing a value of 0 will reset it.
> The device_lvl_exception_id reports the exception ID which is the
> qDeviceLevelExceptionID attribute of the device JEDEC specifications
> version 4.1 and later. The user space application can query these
> sysfs nodes to get more information about the device level exception.
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
next prev parent reply other threads:[~2025-03-21 16:32 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-21 3:18 [PATCH v4 1/1] scsi: ufs: core: add device level exception support Bao D. Nguyen
2025-03-21 16:31 ` Bart Van Assche [this message]
2025-03-25 16:33 ` Arthur Simchaev
2025-03-25 22:15 ` Bao D. Nguyen
2025-03-26 7:30 ` Arthur Simchaev
2025-03-26 23:28 ` Bao D. Nguyen
2025-03-26 10:49 ` Bart Van Assche
2025-03-26 23:47 ` Bao D. Nguyen
2025-03-27 11:36 ` Bart Van Assche
2025-03-27 21:45 ` Bao D. Nguyen
2025-03-28 14:02 ` Bart Van Assche
2025-04-02 7:49 ` manivannan.sadhasivam
2025-04-02 19:00 ` Bao D. Nguyen
2025-04-06 18:23 ` manivannan.sadhasivam
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