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FROMGIT: scsi: ufs: Recheck bkops level if bkops is disabled

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bkops level should be rechecked upon receiving an exception.  Currently the
level is being cached and never updated.

Update bkops each time the level is checked.  Also do not use the cached
bkops level value if it is disabled and then enabled.

Bug: 143632303
(cherry picked from commit dc2ec810907431865ad3f2a17f2aac192e7f54f3
https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git 5.6/scsi-queue)
Fixes: afdfff59a0 (scsi: ufs: handle non spec compliant bkops behaviour by device)
Link: https://lore.kernel.org/r/1574751214-8321-2-git-send-email-cang@qti.qualcomm.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Change-Id: I033548b380d49b3f3e941c86f7e7221586613535
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
This commit is contained in:
Asutosh Das
2019-11-25 22:53:30 -08:00
committed by Todd Kjos
parent b2117ae840
commit f36f4edab2
1 changed files with 3 additions and 0 deletions
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3
drivers/scsi/ufs/ufshcd.c
View File

@@ -5091,6 +5091,7 @@ static int ufshcd_disable_auto_bkops(struct ufs_hba *hba)
hba->auto_bkops_enabled = false;
trace_ufshcd_auto_bkops_state(dev_name(hba->dev), "Disabled");
hba->is_urgent_bkops_lvl_checked = false;
out:
return err;
}
@@ -5115,6 +5116,7 @@ static void ufshcd_force_reset_auto_bkops(struct ufs_hba *hba)
hba->ee_ctrl_mask &= ~MASK_EE_URGENT_BKOPS;
ufshcd_disable_auto_bkops(hba);
}
hba->is_urgent_bkops_lvl_checked = false;
}
static inline int ufshcd_get_bkops_status(struct ufs_hba *hba, u32 *status)
@@ -5161,6 +5163,7 @@ static int ufshcd_bkops_ctrl(struct ufs_hba *hba,
err = ufshcd_enable_auto_bkops(hba);
else
err = ufshcd_disable_auto_bkops(hba);
hba->urgent_bkops_lvl = curr_status;
out:
return err;
}