linux-kernel - Re: [PATCH V7 0/4] mmc: add error statistics for eMMC and SD card

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Date:   Fri, 27 May 2022 19:29:03 +0530
From:   "Sajida Bhanu (Temp)" <quic_c_sbhanu@...cinc.com>
To:     Adrian Hunter <adrian.hunter@...el.com>, <ulf.hansson@...aro.org>,
        <agross@...nel.org>, <bjorn.andersson@...aro.org>,
        <p.zabel@...gutronix.de>, <chris@...ntf.net>,
        <venkatg@...eaurora.org>, <gdjakov@...sol.com>,
        <quic_asutoshd@...cinc.com>
CC:     <linux-arm-msm@...r.kernel.org>, <linux-mmc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <quic_rampraka@...cinc.com>,
        <quic_pragalla@...cinc.com>, <quic_sartgarg@...cinc.com>,
        <quic_nitirawa@...cinc.com>, <quic_sayalil@...cinc.com>
Subject: Re: [PATCH V7 0/4] mmc: add error statistics for eMMC and SD card


On 5/27/2022 3:15 PM, Adrian Hunter wrote:
> On 25/05/22 15:28, Shaik Sajida Bhanu wrote:
>> Changes since V6:
>> 	- Rebased on Ulf's(Ulf Hansson) next branch as suggested by
>> 	  Adrain Hunter.
> I think maybe you re-based on the "master" branch not the "next" branch, please check
Sure got it Thank you.. will re-base on next branch and post
>
>> 	- Replaced debugfs_create_file() with debugfs_create_file_unsafe()
>> 	  as suggested by Adrain Hunter.
>> 	- "[V6,5/5] mmc: cqhci: Capture eMMC and SD card errors" not included
>> 	  in this Patch series as we don't have cqhci changes on Ulf's(Ulf Hansson)
>> 	  next branch.
> cqhci is in the "next" branch, please check
Sure Thank you
>
>> Changes since V5:
>> 	- Considered all error stats enums to set error state.
>> 	- Added missed tuning error related code changes which was
>> 	  missed in patch set V5 as Adrain Hunter pointed.
>> 	- Replaced DEFINE_SIMPLE_ATTRIBUTE with DEFINE_DEBUGFS_ATTRIBUTE
>> 	  as suggested by Adrain Hunter.
>> 	
>> Changes since V4:
>> 	- Defined new macro to increment err_stats members when error occurred
>> 	  as suggested by Adrain Hunter.
>> 	- Called err_stats members increment function after printing the error
>> 	  as suggested by Adrain Hunter.
>> 	- Considered INDEX and END_BIT errors same as CRC errors as suggested
>> 	  by Adrain Hunter.
>> 	- Removed Null check for host in debug fs functions and Reordered
>> 	  err_stats declarationas suggested by Adrain Hunter.
>> 	- Removed err_state variable stuff and updated err_state debug fs entry
>> 	  based on the err_stats members state as suggested by Adrain Hunter.
>>
>> Changes since V3:
>> 	- Dropped error stats feature flag as suggested by Adrain Hunter.
>> 	- Separated error state related changes in separate patches as
>> 	  suggested by Adrain Hunter.
>> 	  [PATCH V4 4/7] : error state debug fs
>> 	  [PATCH V4 5/7] : error state enable function
>> 	  [PATCH V4 6/7] : error state enable in error case
>> 	- Note: we are enabling error state before calling sdhci_dumpregs
>> 	  we couldn't add the err state in error stats array as err state
>> 	  is not error type.
>> 	- Corrected Signed-off-by order as suggested by Bjron Andersson.
>> 	- Moved error state enable code from sdhci_dumpregs to error
>> 	  conditions as suggested by Adrain Hunter
>>
>> Changes since V2:
>> 	- Removed userspace error stats clear debug fs entry as suggested
>> 	  by Adrain Hunter.
>> 	- Split patch into 4 patches
>> 	  [PATCH V3 1/4] : sdhci driver
>> 	  [PATCH V3 2/4] : debug fs entries
>> 	  [PATCH V3 3/4] : core driver
>> 	  [PATCH V3 4/4] : cqhci driver
>> 	- Used for loop to print error messages instead of using printf
>> 	  statements for all error messages as suggested by Adrain Hunter.
>> 	- Introduced one flag to enable error stats feature, if any other
>> 	  client wants to use this feature, they need to enable that flag.
>> 	- Moved reset command timeout error statement to card init flow
>> 	  as suggested by Adrain Hunter.
>>
>> Changes since V1:
>> 	- Removed sysfs entry for eMMC and SD card error statistics and added
>> 	  debugfs entry as suggested by Adrian Hunter and Ulf Hansson.
>>
>> Shaik Sajida Bhanu (4):
>>    mmc: core: Capture eMMC and SD card errors
>>    mmc: sdhci: Capture eMMC and SD card errors
>>    mmc: debugfs: Add debug fs entry for mmc driver
>>    mmc: debugfs: Add debug fs error state entry for mmc driver
>>
>>   drivers/mmc/core/core.c    | 11 +++++--
>>   drivers/mmc/core/debugfs.c | 81 ++++++++++++++++++++++++++++++++++++++++++++++
>>   drivers/mmc/host/sdhci.c   | 33 +++++++++++++++----
>>   drivers/mmc/host/sdhci.h   |  3 ++
>>   include/linux/mmc/host.h   | 26 +++++++++++++++
>>   include/linux/mmc/mmc.h    |  6 ++++
>>   6 files changed, 151 insertions(+), 9 deletions(-)
>>