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Message-Id: <20201201041402.3860525-1-jaegeuk@kernel.org>
Date: Mon, 30 Nov 2020 20:14:02 -0800
From: Jaegeuk Kim <jaegeuk@...nel.org>
To: linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
kernel-team@...roid.com
Cc: cang@...eaurora.org, alim.akhtar@...sung.com, avri.altman@....com,
bvanassche@....org, martin.petersen@...cle.com,
stanley.chu@...iatek.com, Randall Huang <huangrandall@...gle.com>,
Leo Liou <leoliou@...gle.com>, Jaegeuk Kim <jaegeuk@...gle.com>
Subject: [PATCH] scsi: ufs: clear uac for RPMB after ufshcd resets
From: Randall Huang <huangrandall@...gle.com>
If RPMB is not provisioned, we may see RPMB failure after UFS suspend/resume.
Inject request_sense to clear uac in ufshcd reset flow.
Signed-off-by: Randall Huang <huangrandall@...gle.com>
Signed-off-by: Leo Liou <leoliou@...gle.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@...gle.com>
---
drivers/scsi/ufs/ufshcd.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index dba3ee307307..c728c00b58db 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -220,6 +220,7 @@ static int ufshcd_reset_and_restore(struct ufs_hba *hba);
static int ufshcd_eh_host_reset_handler(struct scsi_cmnd *cmd);
static int ufshcd_clear_tm_cmd(struct ufs_hba *hba, int tag);
static void ufshcd_hba_exit(struct ufs_hba *hba);
+static int ufshcd_clear_ua_wluns(struct ufs_hba *hba);
static int ufshcd_probe_hba(struct ufs_hba *hba, bool async);
static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on,
bool skip_ref_clk);
@@ -6814,7 +6815,8 @@ static int ufshcd_host_reset_and_restore(struct ufs_hba *hba)
/* Establish the link again and restore the device */
err = ufshcd_probe_hba(hba, false);
-
+ if (!err)
+ ufshcd_clear_ua_wluns(hba);
out:
if (err)
dev_err(hba->dev, "%s: Host init failed %d\n", __func__, err);
@@ -8304,13 +8306,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
* handling context.
*/
hba->host->eh_noresume = 1;
- if (hba->wlun_dev_clr_ua) {
- ret = ufshcd_send_request_sense(hba, sdp);
- if (ret)
- goto out;
- /* Unit attention condition is cleared now */
- hba->wlun_dev_clr_ua = false;
- }
+ ufshcd_clear_ua_wluns(hba);
cmd[4] = pwr_mode << 4;
--
2.29.2.454.gaff20da3a2-goog
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