Re: [PATCH v2] ufs: introduce setup_xfer_req callback

[Martin K. Petersen]

> "Kiwoong" == Kiwoong Kim  writes:

Kiwoong> Some UFS host controller may need to configure some things
Kiwoong> before any transfer request is issued.

Applied your 3 v2 patches to 4.10/scsi-queue.

Kiwoong> V2: change data type of 2nd argument

Please make sure to put change entries like this below a --- separator
so they don't become part of the git commit description.

Thanks!

-- 
Martin K. Petersen  Oracle Linux Engineering
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: [PATCH v2] ufs: introduce setup_xfer_req callback

[Subhash Jadavani]

On 2016-11-10 04:14, Kiwoong Kim wrote:

Some UFS host controller may need to configure some things
before any transfer request is issued.

V2: change data type of 2nd argument

Signed-off-by: Kiwoong Kim 
---
 drivers/scsi/ufs/ufshcd.c |  2 ++
 drivers/scsi/ufs/ufshcd.h | 10 ++
 2 files changed, 12 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 8cf5d8f..bf78321 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1516,6 +1516,7 @@ static int ufshcd_queuecommand(struct Scsi_Host
*host, struct scsi_cmnd *cmd)

/* issue command to the controller */
spin_lock_irqsave(hba->host->host_lock, flags);
+   ufshcd_vops_setup_xfer_req(hba, tag, (lrbp->cmd ? true : false));
ufshcd_send_command(hba, tag);
 out_unlock:
spin_unlock_irqrestore(hba->host->host_lock, flags);
@@ -1727,6 +1728,7 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba 
*hba,

/* Make sure descriptors are ready before ringing the doorbell */
wmb();
spin_lock_irqsave(hba->host->host_lock, flags);
+   ufshcd_vops_setup_xfer_req(hba, tag, (lrbp->cmd ? true : false));
ufshcd_send_command(hba, tag);
spin_unlock_irqrestore(hba->host->host_lock, flags);

diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index afff7f4..e935fd1 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -261,6 +261,8 @@ struct ufs_pwr_mode_info {
  * @pwr_change_notify: called before and after a power mode change
  * is carried out to allow vendor spesific capabilities
  * to be set.
+ * @setup_xfer_req: called before any transfer request is issued
+ *  to set some things
  * @suspend: called during host controller PM callback
  * @resume: called during host controller PM callback
  * @dbg_register_dump: used to dump controller debug information
@@ -284,6 +286,7 @@ struct ufs_hba_variant_ops {
enum ufs_notify_change_status status,
struct ufs_pa_layer_attr *,
struct ufs_pa_layer_attr *);
+   void(*setup_xfer_req)(struct ufs_hba *, int, bool);
int (*suspend)(struct ufs_hba *, enum ufs_pm_op);
int (*resume)(struct ufs_hba *, enum ufs_pm_op);
void(*dbg_register_dump)(struct ufs_hba *hba);
@@ -801,6 +804,13 @@ static inline int
ufshcd_vops_pwr_change_notify(struct ufs_hba *hba,
return -ENOTSUPP;
 }

+static inline void ufshcd_vops_setup_xfer_req(struct ufs_hba *hba, int 
tag,

+   bool is_scsi_cmd)
+{
+   if (hba->vops && hba->vops->setup_xfer_req)
+   return hba->vops->setup_xfer_req(hba, tag, is_scsi_cmd);
+}
+
 static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum 
ufs_pm_op op)

 {
if (hba->vops && hba->vops->suspend)



LGTM.
Reviewed-by: Subhash Jadavani 


--
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH v2] ufs: introduce setup_xfer_req callback

[Kiwoong Kim]

Some UFS host controller may need to configure some things
before any transfer request is issued.

V2: change data type of 2nd argument

Signed-off-by: Kiwoong Kim 
---
 drivers/scsi/ufs/ufshcd.c |  2 ++
 drivers/scsi/ufs/ufshcd.h | 10 ++
 2 files changed, 12 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 8cf5d8f..bf78321 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1516,6 +1516,7 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, 
struct scsi_cmnd *cmd)
 
/* issue command to the controller */
spin_lock_irqsave(hba->host->host_lock, flags);
+   ufshcd_vops_setup_xfer_req(hba, tag, (lrbp->cmd ? true : false));
ufshcd_send_command(hba, tag);
 out_unlock:
spin_unlock_irqrestore(hba->host->host_lock, flags);
@@ -1727,6 +1728,7 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
/* Make sure descriptors are ready before ringing the doorbell */
wmb();
spin_lock_irqsave(hba->host->host_lock, flags);
+   ufshcd_vops_setup_xfer_req(hba, tag, (lrbp->cmd ? true : false));
ufshcd_send_command(hba, tag);
spin_unlock_irqrestore(hba->host->host_lock, flags);
 
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index afff7f4..e935fd1 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -261,6 +261,8 @@ struct ufs_pwr_mode_info {
  * @pwr_change_notify: called before and after a power mode change
  * is carried out to allow vendor spesific capabilities
  * to be set.
+ * @setup_xfer_req: called before any transfer request is issued
+ *  to set some things
  * @suspend: called during host controller PM callback
  * @resume: called during host controller PM callback
  * @dbg_register_dump: used to dump controller debug information
@@ -284,6 +286,7 @@ struct ufs_hba_variant_ops {
enum ufs_notify_change_status status,
struct ufs_pa_layer_attr *,
struct ufs_pa_layer_attr *);
+   void(*setup_xfer_req)(struct ufs_hba *, int, bool);
int (*suspend)(struct ufs_hba *, enum ufs_pm_op);
int (*resume)(struct ufs_hba *, enum ufs_pm_op);
void(*dbg_register_dump)(struct ufs_hba *hba);
@@ -801,6 +804,13 @@ static inline int ufshcd_vops_pwr_change_notify(struct 
ufs_hba *hba,
return -ENOTSUPP;
 }
 
+static inline void ufshcd_vops_setup_xfer_req(struct ufs_hba *hba, int tag,
+   bool is_scsi_cmd)
+{
+   if (hba->vops && hba->vops->setup_xfer_req)
+   return hba->vops->setup_xfer_req(hba, tag, is_scsi_cmd);
+}
+
 static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum ufs_pm_op op)
 {
if (hba->vops && hba->vops->suspend)
-- 
2.1.4

--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html