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| author | Zang Leigang <zangleigang@hisilicon.com> | 2017-09-27 10:06:06 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-09-27 21:43:40 -0400 |
| commit | 090171885f505ea6814ad6459e9982bb4444c245 (patch) | |
| tree | fb6c1d661a784e75b1358cf9e6f57e5f3eb0ad81 /drivers/scsi/ufs | |
| parent | 479da360570ac7195cbcd89c6a9d6360ae8fe8e1 (diff) | |
| download | linux-stable-090171885f505ea6814ad6459e9982bb4444c245.tar.gz linux-stable-090171885f505ea6814ad6459e9982bb4444c245.tar.bz2 linux-stable-090171885f505ea6814ad6459e9982bb4444c245.zip | |
scsi: ufs: add ufs a command complete time stamp
Signed-off-by: Zang Leigang <zangleigang@hisilicon.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ufs')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 5 | ||||
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.h | 2 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index deb77535b8c9..3a03641e5f4e 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -385,6 +385,8 @@ void ufshcd_print_trs(struct ufs_hba *hba, unsigned long bitmap, bool pr_prdt) dev_err(hba->dev, "UPIU[%d] - issue time %lld us\n", tag, ktime_to_us(lrbp->issue_time_stamp)); + dev_err(hba->dev, "UPIU[%d] - complete time %lld us\n", + tag, ktime_to_us(lrbp->compl_time_stamp)); dev_err(hba->dev, "UPIU[%d] - Transfer Request Descriptor phys@0x%llx\n", tag, (u64)lrbp->utrd_dma_addr); @@ -1746,6 +1748,7 @@ static inline void ufshcd_send_command(struct ufs_hba *hba, unsigned int task_tag) { hba->lrb[task_tag].issue_time_stamp = ktime_get(); + hba->lrb[task_tag].compl_time_stamp = ktime_set(0, 0); ufshcd_clk_scaling_start_busy(hba); __set_bit(task_tag, &hba->outstanding_reqs); ufshcd_writel(hba, 1 << task_tag, REG_UTP_TRANSFER_REQ_DOOR_BELL); @@ -4627,6 +4630,8 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba, } if (ufshcd_is_clkscaling_supported(hba)) hba->clk_scaling.active_reqs--; + + lrbp->compl_time_stamp = ktime_get(); } /* clear corresponding bits of completed commands */ diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index cdc8bd05f7df..40ea4759a02f 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -166,6 +166,7 @@ struct ufs_pm_lvl_states { * @lun: LUN of the command * @intr_cmd: Interrupt command (doesn't participate in interrupt aggregation) * @issue_time_stamp: time stamp for debug purposes + * @compl_time_stamp: time stamp for statistics * @req_abort_skip: skip request abort task flag */ struct ufshcd_lrb { @@ -189,6 +190,7 @@ struct ufshcd_lrb { u8 lun; /* UPIU LUN id field is only 8-bit wide */ bool intr_cmd; ktime_t issue_time_stamp; + ktime_t compl_time_stamp; bool req_abort_skip; }; |