[v3,0/4] scsi: ufs: Provide fatal and auto-hibern8 error history

Message

Stanley Chu July 10, 2019, 1:38 p.m. UTC

This patchset provides more information of fatal errros and auto-hibern8 errors
to improve debugging by keeping their error history as completed as possible.

Thanks Avri so much for prompt reviewing patchset v1.

I would like to post new version to add one more patch "scsi: ufs: Add history of fatal events"
to provide history for "non-interrupt-based" errors and abnormal events as well.

Example of fatal errors,
- Link startup error
- Suspend error
- Resume error

Example of abnormal events,
- Task or request abort
- Device reset (now equals to Logical Unit Reset)
- Host reset

Changes in v3:
- Fix one missing place to track link startup error (Avri Altman)
- Add history of device reset events (Avri Altman)
- Add history of host reset events

Changes in v2:
- Add new patch "scsi: ufs: Add history of fatal events"

Stanley Chu (4):
  scsi: ufs: Change names related to error history
  scsi: ufs: Add fatal and auto-hibern8 error history
  scsi: ufs: Do not reset error history during host reset
  scsi: ufs: Add history of fatal events

 drivers/scsi/ufs/ufshcd.c | 94 ++++++++++++++++++++++++---------------
 drivers/scsi/ufs/ufshcd.h | 42 ++++++++++++-----
 2 files changed, 90 insertions(+), 46 deletions(-)

Comments

Martin K. Petersen July 12, 2019, 1:20 a.m. UTC | #1

Stanley,

> This patchset provides more information of fatal errros and
> auto-hibern8 errors to improve debugging by keeping their error
> history as completed as possible.

Applied to 5.4/scsi-queue. Thanks!