* [PATCH] scsi: ufs: Add total count for each error history [not found] <CGME20210203070741epcas1p20ce8cc24d06b3c82d735dff59f0459de@epcas1p2.samsung.com> @ 2021-02-03 6:53 ` DooHyun Hwang 2021-02-03 7:27 ` Adrian Hunter 0 siblings, 1 reply; 3+ messages in thread From: DooHyun Hwang @ 2021-02-03 6:53 UTC (permalink / raw) To: linux-scsi, linux-kernel, alim.akhtar, avri.altman, jejb, martin.petersen, stanley.chu, cang, asutoshd, beanhuo, jaegeuk, adrian.hunter, satyat Cc: grant.jung, jt77.jang, junwoo80.lee, jangsub.yi, sh043.lee, cw9316.lee, sh8267.baek, wkon.kim, DooHyun Hwang Since the total error history count is unknown because the error history records only the number of UFS_EVENT_HIST_LENGTH, add a member to count each error history. Signed-off-by: DooHyun Hwang <dh0421.hwang@samsung.com> --- drivers/scsi/ufs/ufshcd.c | 3 +++ drivers/scsi/ufs/ufshcd.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index fb32d122f2e3..7ebc892553fc 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -437,6 +437,8 @@ static void ufshcd_print_evt(struct ufs_hba *hba, u32 id, if (!found) dev_err(hba->dev, "No record of %s\n", err_name); + else + dev_err(hba->dev, "%s: total count=%u\n", err_name, e->count); } static void ufshcd_print_evt_hist(struct ufs_hba *hba) @@ -4544,6 +4546,7 @@ void ufshcd_update_evt_hist(struct ufs_hba *hba, u32 id, u32 val) e->val[e->pos] = val; e->tstamp[e->pos] = ktime_get(); e->pos = (e->pos + 1) % UFS_EVENT_HIST_LENGTH; + e->count++; ufshcd_vops_event_notify(hba, id, &val); } diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index aa9ea3552323..df28d3fc89a5 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -450,6 +450,7 @@ struct ufs_event_hist { int pos; u32 val[UFS_EVENT_HIST_LENGTH]; ktime_t tstamp[UFS_EVENT_HIST_LENGTH]; + u32 count; }; /** -- 2.29.0 ^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] scsi: ufs: Add total count for each error history 2021-02-03 6:53 ` [PATCH] scsi: ufs: Add total count for each error history DooHyun Hwang @ 2021-02-03 7:27 ` Adrian Hunter 2021-02-03 8:00 ` DooHyun Hwang 0 siblings, 1 reply; 3+ messages in thread From: Adrian Hunter @ 2021-02-03 7:27 UTC (permalink / raw) To: DooHyun Hwang, linux-scsi, linux-kernel, alim.akhtar, avri.altman, jejb, martin.petersen, stanley.chu, cang, asutoshd, beanhuo, jaegeuk, satyat Cc: grant.jung, jt77.jang, junwoo80.lee, jangsub.yi, sh043.lee, cw9316.lee, sh8267.baek, wkon.kim On 3/02/21 8:53 am, DooHyun Hwang wrote: > Since the total error history count is unknown because the error history > records only the number of UFS_EVENT_HIST_LENGTH, add a member to count > each error history. > > Signed-off-by: DooHyun Hwang <dh0421.hwang@samsung.com> Hi Please note that the following patch is already queued - see linux-next commit b6cacaf2044fd9b82e5ceac88d8d17e04a01982f Author: Adrian Hunter <adrian.hunter@intel.com> Date: Thu Jan 7 09:25:38 2021 +0200 scsi: ufs: ufs-debugfs: Add error counters People testing have a need to know how many errors might be occurring over time. Add error counters and expose them via debugfs. A module initcall is used to create a debugfs root directory for ufshcd-related items. In the case that modules are built-in, then initialization is done in link order, so move ufshcd-core to the top of the Makefile. Link: https://lore.kernel.org/r/20210107072538.21782-1-adrian.hunter@intel.com Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Can Guo <cang@codeaurora.org> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> > --- > drivers/scsi/ufs/ufshcd.c | 3 +++ > drivers/scsi/ufs/ufshcd.h | 1 + > 2 files changed, 4 insertions(+) > > diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c > index fb32d122f2e3..7ebc892553fc 100644 > --- a/drivers/scsi/ufs/ufshcd.c > +++ b/drivers/scsi/ufs/ufshcd.c > @@ -437,6 +437,8 @@ static void ufshcd_print_evt(struct ufs_hba *hba, u32 id, > > if (!found) > dev_err(hba->dev, "No record of %s\n", err_name); > + else > + dev_err(hba->dev, "%s: total count=%u\n", err_name, e->count); > } > > static void ufshcd_print_evt_hist(struct ufs_hba *hba) > @@ -4544,6 +4546,7 @@ void ufshcd_update_evt_hist(struct ufs_hba *hba, u32 id, u32 val) > e->val[e->pos] = val; > e->tstamp[e->pos] = ktime_get(); > e->pos = (e->pos + 1) % UFS_EVENT_HIST_LENGTH; > + e->count++; > > ufshcd_vops_event_notify(hba, id, &val); > } > diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h > index aa9ea3552323..df28d3fc89a5 100644 > --- a/drivers/scsi/ufs/ufshcd.h > +++ b/drivers/scsi/ufs/ufshcd.h > @@ -450,6 +450,7 @@ struct ufs_event_hist { > int pos; > u32 val[UFS_EVENT_HIST_LENGTH]; > ktime_t tstamp[UFS_EVENT_HIST_LENGTH]; > + u32 count; > }; > > /** > ^ permalink raw reply [flat|nested] 3+ messages in thread
* RE: [PATCH] scsi: ufs: Add total count for each error history 2021-02-03 7:27 ` Adrian Hunter @ 2021-02-03 8:00 ` DooHyun Hwang 0 siblings, 0 replies; 3+ messages in thread From: DooHyun Hwang @ 2021-02-03 8:00 UTC (permalink / raw) To: 'Adrian Hunter', linux-scsi, linux-kernel, alim.akhtar, avri.altman, jejb, martin.petersen, stanley.chu, cang, asutoshd, beanhuo, jaegeuk, satyat Cc: grant.jung, jt77.jang, junwoo80.lee, jangsub.yi, sh043.lee, cw9316.lee, sh8267.baek, wkon.kim Hi Thank you for your review and I found the below commit in linux-next. So, I'll reject this patch. >On 3/02/21 8:53 am, DooHyun Hwang wrote: >> Since the total error history count is unknown because the error >> history records only the number of UFS_EVENT_HIST_LENGTH, add a member >> to count each error history. >> >> Signed-off-by: DooHyun Hwang <dh0421.hwang@samsung.com> > >Hi > >Please note that the following patch is already queued - see linux-next > > >commit b6cacaf2044fd9b82e5ceac88d8d17e04a01982f >Author: Adrian Hunter <adrian.hunter@intel.com> >Date: Thu Jan 7 09:25:38 2021 +0200 > > scsi: ufs: ufs-debugfs: Add error counters > > People testing have a need to know how many errors might be occurring >over > time. Add error counters and expose them via debugfs. > > A module initcall is used to create a debugfs root directory for > ufshcd-related items. In the case that modules are built-in, then > initialization is done in link order, so move ufshcd-core to the top of >the > Makefile. > > Link: https://lore.kernel.org/r/20210107072538.21782-1- >adrian.hunter@intel.com > Reviewed-by: Avri Altman <avri.altman@wdc.com> > Reviewed-by: Bean Huo <beanhuo@micron.com> > Reviewed-by: Can Guo <cang@codeaurora.org> > Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> > Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> > > >> --- >> drivers/scsi/ufs/ufshcd.c | 3 +++ >> drivers/scsi/ufs/ufshcd.h | 1 + >> 2 files changed, 4 insertions(+) >> >> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c >> index fb32d122f2e3..7ebc892553fc 100644 >> --- a/drivers/scsi/ufs/ufshcd.c >> +++ b/drivers/scsi/ufs/ufshcd.c >> @@ -437,6 +437,8 @@ static void ufshcd_print_evt(struct ufs_hba *hba, >> u32 id, >> >> if (!found) >> dev_err(hba->dev, "No record of %s\n", err_name); >> + else >> + dev_err(hba->dev, "%s: total count=%u\n", err_name, e->count); >> } >> >> static void ufshcd_print_evt_hist(struct ufs_hba *hba) @@ -4544,6 >> +4546,7 @@ void ufshcd_update_evt_hist(struct ufs_hba *hba, u32 id, u32 >val) >> e->val[e->pos] = val; >> e->tstamp[e->pos] = ktime_get(); >> e->pos = (e->pos + 1) % UFS_EVENT_HIST_LENGTH; >> + e->count++; >> >> ufshcd_vops_event_notify(hba, id, &val); } diff --git >> a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index >> aa9ea3552323..df28d3fc89a5 100644 >> --- a/drivers/scsi/ufs/ufshcd.h >> +++ b/drivers/scsi/ufs/ufshcd.h >> @@ -450,6 +450,7 @@ struct ufs_event_hist { >> int pos; >> u32 val[UFS_EVENT_HIST_LENGTH]; >> ktime_t tstamp[UFS_EVENT_HIST_LENGTH]; >> + u32 count; >> }; >> >> /** >> ^ permalink raw reply [flat|nested] 3+ messages in thread
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2021-02-03 6:53 ` [PATCH] scsi: ufs: Add total count for each error history DooHyun Hwang
2021-02-03 7:27 ` Adrian Hunter
2021-02-03 8:00 ` DooHyun Hwang
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