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From: Stanley Chu <stanley.chu@mediatek.com>
To: linux-scsi@vger.kernel.org, martin.petersen@oracle.com,
	avri.altman@wdc.com, alim.akhtar@samsung.com,
	pedrom.sousa@synopsys.com
Cc: sthumma@codeaurora.org, marc.w.gonzalez@free.fr,
	andy.teng@mediatek.com, chun-hung.wu@mediatek.com,
	kuohong.wang@mediatek.com, peter.wang@mediatek.com,
	evgreen@chromium.org, subhashj@codeaurora.org,
	linux-mediatek@lists.infradead.org, ygardi@codeaurora.org,
	matthias.bgg@gmail.com, Stanley Chu <stanley.chu@mediatek.com>,
	linux-arm-kernel@lists.infradead.org, beanhuo@micron.com
Subject: [PATCH v1 3/3] scsi: ufs: Do not reset error history during host reset
Date: Mon, 8 Jul 2019 12:37:57 +0800	[thread overview]
Message-ID: <1562560677-3985-4-git-send-email-stanley.chu@mediatek.com> (raw)
In-Reply-To: <1562560677-3985-1-git-send-email-stanley.chu@mediatek.com>

Currently UFS error history will be reset and lost during host reset
flow by ufschd_probe_hba().

We shall not reset it and then error history can be kept as completed
as possible to improve debugging.

In addition, fix a minor display error in ufshcd_print_err_hist().

Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
---
 drivers/scsi/ufs/ufshcd.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index b8b874311509..a46c3d2b2ea3 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -402,7 +402,7 @@ static void ufshcd_print_err_hist(struct ufs_hba *hba,
 
 		if (err_hist->reg[p] == 0)
 			continue;
-		dev_err(hba->dev, "%s[%d] = 0x%x at %lld us\n", err_name, i,
+		dev_err(hba->dev, "%s[%d] = 0x%x at %lld us\n", err_name, p,
 			err_hist->reg[p], ktime_to_us(err_hist->tstamp[p]));
 		found = true;
 	}
@@ -6690,19 +6690,8 @@ static void ufshcd_tune_unipro_params(struct ufs_hba *hba)
 
 static void ufshcd_clear_dbg_ufs_stats(struct ufs_hba *hba)
 {
-	int err_reg_hist_size = sizeof(struct ufs_err_reg_hist);
-
 	hba->ufs_stats.hibern8_exit_cnt = 0;
 	hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0);
-
-	memset(&hba->ufs_stats.pa_err, 0, err_reg_hist_size);
-	memset(&hba->ufs_stats.dl_err, 0, err_reg_hist_size);
-	memset(&hba->ufs_stats.nl_err, 0, err_reg_hist_size);
-	memset(&hba->ufs_stats.tl_err, 0, err_reg_hist_size);
-	memset(&hba->ufs_stats.dme_err, 0, err_reg_hist_size);
-	memset(&hba->ufs_stats.fatal_err, 0, err_reg_hist_size);
-	memset(&hba->ufs_stats.auto_hibern8_err, 0, err_reg_hist_size);
-
 	hba->req_abort_count = 0;
 }
 
-- 
2.18.0

WARNING: multiple messages have this Message-ID (diff)
From: Stanley Chu <stanley.chu@mediatek.com>
To: <linux-scsi@vger.kernel.org>, <martin.petersen@oracle.com>,
	<avri.altman@wdc.com>, <alim.akhtar@samsung.com>,
	<pedrom.sousa@synopsys.com>
Cc: sthumma@codeaurora.org, marc.w.gonzalez@free.fr,
	andy.teng@mediatek.com, chun-hung.wu@mediatek.com,
	kuohong.wang@mediatek.com, peter.wang@mediatek.com,
	evgreen@chromium.org, subhashj@codeaurora.org,
	linux-mediatek@lists.infradead.org, ygardi@codeaurora.org,
	matthias.bgg@gmail.com, Stanley Chu <stanley.chu@mediatek.com>,
	linux-arm-kernel@lists.infradead.org, beanhuo@micron.com
Subject: [PATCH v1 3/3] scsi: ufs: Do not reset error history during host reset
Date: Mon, 8 Jul 2019 12:37:57 +0800	[thread overview]
Message-ID: <1562560677-3985-4-git-send-email-stanley.chu@mediatek.com> (raw)
In-Reply-To: <1562560677-3985-1-git-send-email-stanley.chu@mediatek.com>

Currently UFS error history will be reset and lost during host reset
flow by ufschd_probe_hba().

We shall not reset it and then error history can be kept as completed
as possible to improve debugging.

In addition, fix a minor display error in ufshcd_print_err_hist().

Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
---
 drivers/scsi/ufs/ufshcd.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index b8b874311509..a46c3d2b2ea3 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -402,7 +402,7 @@ static void ufshcd_print_err_hist(struct ufs_hba *hba,
 
 		if (err_hist->reg[p] == 0)
 			continue;
-		dev_err(hba->dev, "%s[%d] = 0x%x at %lld us\n", err_name, i,
+		dev_err(hba->dev, "%s[%d] = 0x%x at %lld us\n", err_name, p,
 			err_hist->reg[p], ktime_to_us(err_hist->tstamp[p]));
 		found = true;
 	}
@@ -6690,19 +6690,8 @@ static void ufshcd_tune_unipro_params(struct ufs_hba *hba)
 
 static void ufshcd_clear_dbg_ufs_stats(struct ufs_hba *hba)
 {
-	int err_reg_hist_size = sizeof(struct ufs_err_reg_hist);
-
 	hba->ufs_stats.hibern8_exit_cnt = 0;
 	hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0);
-
-	memset(&hba->ufs_stats.pa_err, 0, err_reg_hist_size);
-	memset(&hba->ufs_stats.dl_err, 0, err_reg_hist_size);
-	memset(&hba->ufs_stats.nl_err, 0, err_reg_hist_size);
-	memset(&hba->ufs_stats.tl_err, 0, err_reg_hist_size);
-	memset(&hba->ufs_stats.dme_err, 0, err_reg_hist_size);
-	memset(&hba->ufs_stats.fatal_err, 0, err_reg_hist_size);
-	memset(&hba->ufs_stats.auto_hibern8_err, 0, err_reg_hist_size);
-
 	hba->req_abort_count = 0;
 }
 
-- 
2.18.0


_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2019-07-08  4:37 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-08  4:37 [PATCH v1 0/3] scsi: ufs: Provide fatal and auto-hibern8 error history Stanley Chu
2019-07-08  4:37 ` Stanley Chu
2019-07-08  4:37 ` [PATCH v1 1/3] scsi: ufs: Change names related to " Stanley Chu
2019-07-08  4:37   ` Stanley Chu
2019-07-08  4:37 ` [PATCH v1 2/3] scsi: ufs: Add fatal and auto-hibern8 " Stanley Chu
2019-07-08  4:37   ` Stanley Chu
2019-07-08  4:37 ` Stanley Chu [this message]
2019-07-08  4:37   ` [PATCH v1 3/3] scsi: ufs: Do not reset error history during host reset Stanley Chu
2019-07-08  8:25 ` [PATCH v1 0/3] scsi: ufs: Provide fatal and auto-hibern8 error history Avri Altman
2019-07-08  8:25   ` Avri Altman

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