The first patch fixes many issues with current task management handling
in UFSHCD driver. Others improve error handling in various scenarios.
These patches depends on:
[PATCH V3 1/2] scsi: ufs: Add support for sending NOP OUT UPIU
[PATCH V3 2/2] scsi: ufs: Set fDeviceInit flag to initiate device initialization
[PATCH V3 1/2] scsi: ufs: Add support for host assisted background operations
[PATCH V3 2/2] scsi: ufs: Add runtime PM support for UFS host controller driver
Changes from v2:
- [PATCH V3 1/4]: Make the task management command task tag unique
across SCSI/NOP/QUERY request tags.
- [PATCH V3 3/4]: While handling device/host reset, wait for
pending fatal handler to return if running.
Changes from v1:
- [PATCH V2 1/4]: Fix a race condition because of overloading
outstanding_tasks variable to lock the slots. A new variable
tm_slots_in_use will track which slots are in use by the driver.
- [PATCH V2 2/4]: Commit text update to clarify the hardware race
with more details.
- [PATCH V2 3/4]: Minor cleanup and rebase
- [PATCH V2 4/4]: Fix a bug - sleeping in atomic context
Sujit Reddy Thumma (4):
scsi: ufs: Fix broken task management command implementation
scsi: ufs: Fix hardware race conditions while aborting a command
scsi: ufs: Fix device and host reset methods
scsi: ufs: Improve UFS fatal error handling
drivers/scsi/ufs/ufshcd.c | 1035 +++++++++++++++++++++++++++++++++++++--------
drivers/scsi/ufs/ufshcd.h | 12 +-
drivers/scsi/ufs/ufshci.h | 19 +-
3 files changed, 873 insertions(+), 193 deletions(-)
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