scsi: ufs: Add error history for abort event in UFS Device W-LUN

Add error history for abort event in UFS Device W-LUN.

Use specified value as parameter of ufshcd_update_reg_hist() to identify
the aborted tag or LUNs.

Link: https://lore.kernel.org/r/20201205115901.26815-2-stanley.chu@mediatek.com
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 11a4aad09f3a1fe77fba057ab161e01af5552005..7067b86a8e0821088c3354dc82eb3f255cc14475 100644 (file)
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6738,8 +6738,10 @@ 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);
@@ -6763,7 +6765,7 @@ 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);