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,
daejun7.park@samsung.com, powen.kao@mediatek.com
Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v1 1/4] scsi: ufshpb: Merge ufshpb_reset() and ufshpb_reset_host()
Date: Fri, 15 Apr 2022 00:01:24 +0200 [thread overview]
Message-ID: <20220414220127.587917-2-huobean@gmail.com> (raw)
In-Reply-To: <20220414220127.587917-1-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().
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 0899d5b8cdad..de0bc53e3ac6 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7223,7 +7223,7 @@ 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(hba, HPB_PRESENT, HPB_RESET);
ufshcd_hba_stop(hba);
hba->silence_err_logs = true;
ufshcd_complete_requests(hba);
@@ -8184,7 +8184,7 @@ 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(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 3ca745ad616c..4463a0fc619f 100644
--- a/drivers/scsi/ufs/ufshpb.c
+++ b/drivers/scsi/ufs/ufshpb.c
@@ -2278,38 +2278,28 @@ static bool ufshpb_check_hpb_reset_query(struct ufs_hba *hba)
return flag_res;
}
-void ufshpb_reset(struct ufs_hba *hba)
+/**
+ * ufshpb_toggle - switch HPB state of all LUs
+ * @hba: per-adapter instance
+ * @src: expected current HPB state
+ * @dest: expected target HPB state
+ */
+void ufshpb_toggle(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..2825ec69a6a6 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(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(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:[~2022-04-14 22:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-14 22:01 [PATCH v1 0/4] several UFSHPB changes Bean Huo
2022-04-14 22:01 ` Bean Huo [this message]
2022-04-14 22:01 ` [PATCH v1 2/4] scsi: ufshpb: Remove 0 assignment for enum value Bean Huo
2022-04-14 22:01 ` [PATCH v1 3/4] scsi: ufshpb: Cleanup the handler when device reset HPB information Bean Huo
2022-04-14 22:01 ` [PATCH v1 4/4] scsi: ufshpb: Add device reset HPB regions Infor handling for HPB device mode Bean Huo
2022-04-15 4:12 ` [PATCH v1 0/4] several UFSHPB changes Avri Altman
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