From: Bean Huo <huobean@gmail.com>
To: alim.akhtar@samsung.com, avri.altman@wdc.com,
asutoshd@codeaurora.org, jejb@linux.ibm.com,
martin.petersen@oracle.com, stanley.chu@mediatek.com,
beanhuo@micron.com, bvanassche@acm.org, tomas.winkler@intel.com,
cang@codeaurora.org, daejun7.park@samsung.com,
peter.wang@mediatek.com, powen.kao@mediatek.com,
keosung.park@samsung.com
Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v4 1/6] scsi: ufshpb: Merge ufshpb_reset() and ufshpb_reset_host()
Date: Thu, 5 May 2022 15:47:02 +0200 [thread overview]
Message-ID: <20220505134707.35929-2-huobean@gmail.com> (raw)
In-Reply-To: <20220505134707.35929-1-huobean@gmail.com>
From: Bean Huo <beanhuo@micron.com>
There is no functional change in this patch, just merge ufshpb_reset()
and ufshpb_reset_host() into one function ufshpb_toggle_state().
Reviewed-by: Keoseong Park <keosung.park@samsung.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
---
drivers/scsi/ufs/ufshcd.c | 4 ++--
drivers/scsi/ufs/ufshpb.c | 36 +++++++++++++-----------------------
drivers/scsi/ufs/ufshpb.h | 6 ++----
3 files changed, 17 insertions(+), 29 deletions(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 2b4390a1106e..34628bbf675e 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7229,7 +7229,7 @@ static int ufshcd_host_reset_and_restore(struct ufs_hba *hba)
* Stop the host controller and complete the requests
* cleared by h/w
*/
- ufshpb_reset_host(hba);
+ ufshpb_toggle_state(hba, HPB_PRESENT, HPB_RESET);
ufshcd_hba_stop(hba);
hba->silence_err_logs = true;
ufshcd_complete_requests(hba);
@@ -8196,7 +8196,7 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool init_dev_params)
/* Enable Auto-Hibernate if configured */
ufshcd_auto_hibern8_enable(hba);
- ufshpb_reset(hba);
+ ufshpb_toggle_state(hba, HPB_RESET, HPB_PRESENT);
out:
spin_lock_irqsave(hba->host->host_lock, flags);
if (ret)
diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c
index 6e5237a041b5..5412ce6309df 100644
--- a/drivers/scsi/ufs/ufshpb.c
+++ b/drivers/scsi/ufs/ufshpb.c
@@ -2272,38 +2272,28 @@ static bool ufshpb_check_hpb_reset_query(struct ufs_hba *hba)
return flag_res;
}
-void ufshpb_reset(struct ufs_hba *hba)
+/**
+ * ufshpb_toggle_state - switch HPB state of all LUs
+ * @hba: per-adapter instance
+ * @src: expected current HPB state
+ * @dest: target HPB state to switch to
+ */
+void ufshpb_toggle_state(struct ufs_hba *hba, enum UFSHPB_STATE src, enum UFSHPB_STATE dest)
{
struct ufshpb_lu *hpb;
struct scsi_device *sdev;
shost_for_each_device(sdev, hba->host) {
hpb = ufshpb_get_hpb_data(sdev);
- if (!hpb)
- continue;
-
- if (ufshpb_get_state(hpb) != HPB_RESET)
- continue;
-
- ufshpb_set_state(hpb, HPB_PRESENT);
- }
-}
-
-void ufshpb_reset_host(struct ufs_hba *hba)
-{
- struct ufshpb_lu *hpb;
- struct scsi_device *sdev;
- shost_for_each_device(sdev, hba->host) {
- hpb = ufshpb_get_hpb_data(sdev);
- if (!hpb)
+ if (!hpb || ufshpb_get_state(hpb) != src)
continue;
+ ufshpb_set_state(hpb, dest);
- if (ufshpb_get_state(hpb) != HPB_PRESENT)
- continue;
- ufshpb_set_state(hpb, HPB_RESET);
- ufshpb_cancel_jobs(hpb);
- ufshpb_discard_rsp_lists(hpb);
+ if (dest == HPB_RESET) {
+ ufshpb_cancel_jobs(hpb);
+ ufshpb_discard_rsp_lists(hpb);
+ }
}
}
diff --git a/drivers/scsi/ufs/ufshpb.h b/drivers/scsi/ufs/ufshpb.h
index b475dbd78988..7aa0dc58ee9f 100644
--- a/drivers/scsi/ufs/ufshpb.h
+++ b/drivers/scsi/ufs/ufshpb.h
@@ -288,8 +288,7 @@ static int ufshpb_prep(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) { return 0;
static void ufshpb_rsp_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) {}
static void ufshpb_resume(struct ufs_hba *hba) {}
static void ufshpb_suspend(struct ufs_hba *hba) {}
-static void ufshpb_reset(struct ufs_hba *hba) {}
-static void ufshpb_reset_host(struct ufs_hba *hba) {}
+static void ufshpb_toggle_state(struct ufs_hba *hba, enum UFSHPB_STATE src, enum UFSHPB_STATE dest) {}
static void ufshpb_init(struct ufs_hba *hba) {}
static void ufshpb_init_hpb_lu(struct ufs_hba *hba, struct scsi_device *sdev) {}
static void ufshpb_destroy_lu(struct ufs_hba *hba, struct scsi_device *sdev) {}
@@ -303,8 +302,7 @@ int ufshpb_prep(struct ufs_hba *hba, struct ufshcd_lrb *lrbp);
void ufshpb_rsp_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp);
void ufshpb_resume(struct ufs_hba *hba);
void ufshpb_suspend(struct ufs_hba *hba);
-void ufshpb_reset(struct ufs_hba *hba);
-void ufshpb_reset_host(struct ufs_hba *hba);
+void ufshpb_toggle_state(struct ufs_hba *hba, enum UFSHPB_STATE src, enum UFSHPB_STATE dest);
void ufshpb_init(struct ufs_hba *hba);
void ufshpb_init_hpb_lu(struct ufs_hba *hba, struct scsi_device *sdev);
void ufshpb_destroy_lu(struct ufs_hba *hba, struct scsi_device *sdev);
--
2.34.1
next prev parent reply other threads:[~2022-05-05 13:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-05 13:47 [PATCH v4 0/6] Several changes for UFSHPB Bean Huo
2022-05-05 13:47 ` Bean Huo [this message]
2022-05-05 13:47 ` [PATCH v4 2/6] scsi: ufshpb: Remove 0 assignment for enum value Bean Huo
2022-05-05 13:47 ` [PATCH v4 3/6] scsi: ufshpb: Cleanup the handler when device reset HPB information Bean Huo
2022-05-05 13:47 ` [PATCH v4 4/6] scsi: ufshpb: Change sysfs node hpb_stats/rb_* prefix to start with rcmd_* Bean Huo
2022-05-05 13:47 ` [PATCH v4 5/6] scsi: ufshpb: Add handing of device reset HPB regions Infos in HPB device mode Bean Huo
2022-05-05 13:47 ` [PATCH v4 6/6] scsi: ufshpb: Cleanup ufshpb_suspend/resume Bean Huo
2022-05-11 2:02 ` [PATCH v4 0/6] Several changes for UFSHPB Martin K. Petersen
2022-05-17 2:16 ` Martin K. Petersen
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