[PATCH v1 1/3] scsi: ufs: Add error history for abort event in UFS Device W-LUN
From: Stanley Chu <hidden>
Date: 2020-11-26 05:39:04
Also in:
linux-mediatek, linux-scsi, lkml
Subsystem:
scsi subsystem, the rest · Maintainers:
"James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
Add error history for abort event in UFS Device W-LUN. Besides, use specified value as parameter of ufshcd_update_reg_hist() to identify the aborted tag or LUNs. Signed-off-by: Stanley Chu <redacted> --- drivers/scsi/ufs/ufshcd.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 0e5473d4699b..28e4def13f21 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c@@ -6742,8 +6742,10 @@ static int ufshcd_abort(struct scsi_cmnd *cmd) * To avoid these unnecessary/illegal step we skip to the last error * handling stage: reset and restore. */ - if (lrbp->lun == UFS_UPIU_UFS_DEVICE_WLUN) + if (lrbp->lun == UFS_UPIU_UFS_DEVICE_WLUN) { + ufshcd_update_reg_hist(&hba->ufs_stats.task_abort, lrbp->lun); return ufshcd_eh_host_reset_handler(cmd); + } ufshcd_hold(hba, false); reg = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL);
@@ -6767,7 +6769,7 @@ static int ufshcd_abort(struct scsi_cmnd *cmd) */ scsi_print_command(hba->lrb[tag].cmd); if (!hba->req_abort_count) { - ufshcd_update_reg_hist(&hba->ufs_stats.task_abort, 0); + ufshcd_update_reg_hist(&hba->ufs_stats.task_abort, tag); ufshcd_print_host_regs(hba); ufshcd_print_host_state(hba); ufshcd_print_pwr_info(hba);
--
2.18.0
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