diff options
| author | Can Guo <cang@codeaurora.org> | 2021-04-22 05:28:39 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-05-15 04:52:09 +0300 |
| commit | 1d8613a23f3c3b8f0101e453ff150e05a0d1cd4f (patch) | |
| tree | 4a5e94cfd1041293d75363ba21dc8bb908d1d354 /drivers/scsi/ufs/ufshcd.h | |
| parent | 39107e8577ad177db4585d99f1fcc5a29a754ee2 (diff) | |
| download | linux-1d8613a23f3c3b8f0101e453ff150e05a0d1cd4f.tar.xz | |
scsi: ufs: core: Introduce HBA performance monitor sysfs nodes
Add a new sysfs group which has nodes to monitor data/request transfer
performance. This sysfs group has nodes showing total sectors/requests
transferred, total busy time spent and max/min/avg/sum latencies. This
group can be enhanced later to show more UFS driver layer performance
statistics data during runtime.
Link: https://lore.kernel.org/r/1619058521-35307-2-git-send-email-cang@codeaurora.org
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Acked-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ufs/ufshcd.h')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index b8b4fe2b6bd5..bc01fdc34446 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -647,6 +647,25 @@ struct ufs_hba_variant_params { u32 wb_flush_threshold; }; +struct ufs_hba_monitor { + unsigned long chunk_size; + + unsigned long nr_sec_rw[2]; + ktime_t total_busy[2]; + + unsigned long nr_req[2]; + /* latencies*/ + ktime_t lat_sum[2]; + ktime_t lat_max[2]; + ktime_t lat_min[2]; + + u32 nr_queued[2]; + ktime_t busy_start_ts[2]; + + ktime_t enabled_ts; + bool enabled; +}; + /** * struct ufs_hba - per adapter private structure * @mmio_base: UFSHCI base register address @@ -838,6 +857,8 @@ struct ufs_hba { struct request_queue *bsg_queue; struct delayed_work rpm_dev_flush_recheck_work; + struct ufs_hba_monitor monitor; + #ifdef CONFIG_SCSI_UFS_CRYPTO union ufs_crypto_capabilities crypto_capabilities; union ufs_crypto_cap_entry *crypto_cap_array; |