linux-kernel - [PATCH v3 0/3] scsi: ufs: core: support WB buffer resize function

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Date:   Mon, 11 Sep 2023 13:57:05 +0800
From:   Lu Hongfei <luhongfei@...o.com>
To:     Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Bart Van Assche <bvanassche@....org>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Lu Hongfei <luhongfei@...o.com>, Bean Huo <beanhuo@...ron.com>,
        Can Guo <quic_cang@...cinc.com>,
        Arthur Simchaev <arthur.simchaev@....com>,
        Stanley Chu <stanley.chu@...iatek.com>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Asutosh Das <quic_asutoshd@...cinc.com>,
        "Bao D. Nguyen" <quic_nguyenb@...cinc.com>,
        Po-Wen Kao <powen.kao@...iatek.com>,
        Eric Biggers <ebiggers@...gle.com>,
        Keoseong Park <keosung.park@...sung.com>,
        linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org
Cc:     opensource.kernel@...o.com
Subject: [PATCH v3 0/3] scsi: ufs: core: support WB buffer resize function

Hello,

In August 2023, the ballot for resizing the WriteBooster buffer has been
approved.

This v3 series implements the function of controlling the WriteBooster
buffer resize via sysfs that will be supported in UFS.

version 2 changes
-Using sysfs to control WB buffer resize instead of exception event handler
-Removed content related to exception event
-Solved several issues that caused compilation errors

version 3 changes
-Removed UFS version number check
-Optimized several function names to make their definitions clear and easy
to understand
-Fixed several formatting issues to avoid reporting warning information
during compilation
-Removed the ufshcd_scsi_block_requests(), ufshcd_wait_for_doorbell_clr()
and ufshcd_scsi_unblock_requests() calls in ufshcd_configure_wb_buf_resize.

------------------------------------------------------------------------
Lu Hongfei (3):
  scsi: ufs: core: add wb buffer resize related attr_idn
  scsi: ufs: core: Add sysfs attribute to control WB buffer resize
    function
  scsi: ufs: core: Add sysfs attributes to get the hint information and
    status of WB buffer resize

 Documentation/ABI/testing/sysfs-driver-ufs | 52 ++++++++++++++++
 drivers/ufs/core/ufs-sysfs.c               | 70 ++++++++++++++++++++++
 drivers/ufs/core/ufshcd.c                  | 15 +++++
 include/ufs/ufs.h                          |  5 +-
 include/ufs/ufshcd.h                       |  1 +
 5 files changed, 142 insertions(+), 1 deletion(-)

-- 
2.39.0