* [PATCH v1] ufs: introduce setup_task_mgmt
@ 2016-11-08 7:47 Kiwoong Kim
2016-11-08 19:02 ` Subhash Jadavani
0 siblings, 1 reply; 3+ messages in thread
From: Kiwoong Kim @ 2016-11-08 7:47 UTC (permalink / raw)
To: linux-scsi, Martin K. Petersen, vinholikatti, James E.J. Bottomley
Cc: 추헌광
Some UFS host controller may need to configure some things
before any task management request is issued
Signed-off-by: Kiwoong Kim <kwmad.kim@samsung.com>
---
drivers/scsi/ufs/ufshcd.c | 1 +
drivers/scsi/ufs/ufshcd.h | 10 ++++++++++
2 files changed, 11 insertions(+)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index bf78321..fdb0502 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -4358,6 +4358,7 @@ static int ufshcd_issue_tm_cmd(struct ufs_hba *hba, int lun_id, int task_id,
task_req_upiup->input_param2 = cpu_to_be32(task_id);
/* send command to the controller */
+ ufshcd_vops_setup_task_mgmt(hba, free_slot, tm_function);
__set_bit(free_slot, &hba->outstanding_tasks);
/* Make sure descriptors are ready before ringing the task doorbell */
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index f2a69c0..b084d89 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -263,6 +263,8 @@ struct ufs_pwr_mode_info {
* to be set.
* @setup_xfer_req: called before any transfer request is issued
* to set some things
+ * @setup_task_mgmt: called before any task management 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
@@ -287,6 +289,7 @@ struct ufs_hba_variant_ops {
struct ufs_pa_layer_attr *,
struct ufs_pa_layer_attr *);
void (*setup_xfer_req)(struct ufs_hba *, int, bool);
+ void (*setup_task_mgmt)(struct ufs_hba *, int, u8);
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);
@@ -811,6 +814,13 @@ static inline void ufshcd_vops_setup_xfer_req(struct ufs_hba *hba, int tag,
return hba->vops->setup_xfer_req(hba, tag, is_cmd_not_null);
}
+static inline void ufshcd_vops_setup_task_mgmt(struct ufs_hba *hba,
+ int tag, u8 tm_function)
+{
+ if (hba->vops && hba->vops->setup_task_mgmt)
+ return hba->vops->setup_task_mgmt(hba, tag, tm_function);
+}
+
static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum ufs_pm_op op)
{
if (hba->vops && hba->vops->suspend)
--
2.1.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v1] ufs: introduce setup_task_mgmt
2016-11-08 7:47 [PATCH v1] ufs: introduce setup_task_mgmt Kiwoong Kim
@ 2016-11-08 19:02 ` Subhash Jadavani
2016-11-09 5:45 ` Kiwoong Kim
0 siblings, 1 reply; 3+ messages in thread
From: Subhash Jadavani @ 2016-11-08 19:02 UTC (permalink / raw)
To: Kiwoong Kim
Cc: linux-scsi, Martin K. Petersen, vinholikatti,
James E.J. Bottomley, 추헌광,
linux-scsi-owner
On 2016-11-07 23:47, Kiwoong Kim wrote:
> Some UFS host controller may need to configure some things
> before any task management request is issued
>
> Signed-off-by: Kiwoong Kim <kwmad.kim@samsung.com>
> ---
> drivers/scsi/ufs/ufshcd.c | 1 +
> drivers/scsi/ufs/ufshcd.h | 10 ++++++++++
> 2 files changed, 11 insertions(+)
>
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index bf78321..fdb0502 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -4358,6 +4358,7 @@ static int ufshcd_issue_tm_cmd(struct ufs_hba
> *hba, int lun_id, int task_id,
> task_req_upiup->input_param2 = cpu_to_be32(task_id);
>
> /* send command to the controller */
May be you need to move this comment just above __set_bit() call. Rest
all looks good in this patch.
> + ufshcd_vops_setup_task_mgmt(hba, free_slot, tm_function);
> __set_bit(free_slot, &hba->outstanding_tasks);
>
> /* Make sure descriptors are ready before ringing the task doorbell
> */
> diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
> index f2a69c0..b084d89 100644
> --- a/drivers/scsi/ufs/ufshcd.h
> +++ b/drivers/scsi/ufs/ufshcd.h
> @@ -263,6 +263,8 @@ struct ufs_pwr_mode_info {
> * to be set.
> * @setup_xfer_req: called before any transfer request is issued
> * to set some things
> + * @setup_task_mgmt: called before any task management 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
> @@ -287,6 +289,7 @@ struct ufs_hba_variant_ops {
> struct ufs_pa_layer_attr *,
> struct ufs_pa_layer_attr *);
> void (*setup_xfer_req)(struct ufs_hba *, int, bool);
> + void (*setup_task_mgmt)(struct ufs_hba *, int, u8);
> 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);
> @@ -811,6 +814,13 @@ static inline void
> ufshcd_vops_setup_xfer_req(struct ufs_hba *hba, int tag,
> return hba->vops->setup_xfer_req(hba, tag, is_cmd_not_null);
> }
>
> +static inline void ufshcd_vops_setup_task_mgmt(struct ufs_hba *hba,
> + int tag, u8 tm_function)
> +{
> + if (hba->vops && hba->vops->setup_task_mgmt)
> + return hba->vops->setup_task_mgmt(hba, tag, tm_function);
> +}
> +
> static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum
> ufs_pm_op op)
> {
> if (hba->vops && hba->vops->suspend)
--
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
^ permalink raw reply [flat|nested] 3+ messages in thread
* RE: [PATCH v1] ufs: introduce setup_task_mgmt
2016-11-08 19:02 ` Subhash Jadavani
@ 2016-11-09 5:45 ` Kiwoong Kim
0 siblings, 0 replies; 3+ messages in thread
From: Kiwoong Kim @ 2016-11-09 5:45 UTC (permalink / raw)
To: 'Subhash Jadavani'
Cc: linux-scsi, 'Martin K. Petersen',
vinholikatti, 'James E.J. Bottomley', '???',
linux-scsi-owner, cpgs
> > Some UFS host controller may need to configure some things before any
> > task management request is issued
> >
> > Signed-off-by: Kiwoong Kim <kwmad.kim@samsung.com>
> > ---
> > drivers/scsi/ufs/ufshcd.c | 1 +
> > drivers/scsi/ufs/ufshcd.h | 10 ++++++++++
> > 2 files changed, 11 insertions(+)
> >
> > diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> > index bf78321..fdb0502 100644
> > --- a/drivers/scsi/ufs/ufshcd.c
> > +++ b/drivers/scsi/ufs/ufshcd.c
> > @@ -4358,6 +4358,7 @@ static int ufshcd_issue_tm_cmd(struct ufs_hba
> > *hba, int lun_id, int task_id,
> > task_req_upiup->input_param2 = cpu_to_be32(task_id);
> >
> > /* send command to the controller */
>
> May be you need to move this comment just above __set_bit() call. Rest all
> looks good in this patch.
Okay. I'll apply what you said on new version of this patch..
>
> > + ufshcd_vops_setup_task_mgmt(hba, free_slot, tm_function);
> > __set_bit(free_slot, &hba->outstanding_tasks);
> >
> > /* Make sure descriptors are ready before ringing the task doorbell
> > */ diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
> > index f2a69c0..b084d89 100644
> > --- a/drivers/scsi/ufs/ufshcd.h
> > +++ b/drivers/scsi/ufs/ufshcd.h
> > @@ -263,6 +263,8 @@ struct ufs_pwr_mode_info {
> > * to be set.
> > * @setup_xfer_req: called before any transfer request is issued
> > * to set some things
> > + * @setup_task_mgmt: called before any task management 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 @@
> > -287,6 +289,7 @@ struct ufs_hba_variant_ops {
> > struct ufs_pa_layer_attr *,
> > struct ufs_pa_layer_attr *);
> > void (*setup_xfer_req)(struct ufs_hba *, int, bool);
> > + void (*setup_task_mgmt)(struct ufs_hba *, int, u8);
> > 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);
> > @@ -811,6 +814,13 @@ static inline void
> > ufshcd_vops_setup_xfer_req(struct ufs_hba *hba, int tag,
> > return hba->vops->setup_xfer_req(hba, tag,
> is_cmd_not_null); }
> >
> > +static inline void ufshcd_vops_setup_task_mgmt(struct ufs_hba *hba,
> > + int tag, u8 tm_function)
> > +{
> > + if (hba->vops && hba->vops->setup_task_mgmt)
> > + return hba->vops->setup_task_mgmt(hba, tag, tm_function); }
> > +
> > static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum
> > ufs_pm_op op) {
> > if (hba->vops && hba->vops->suspend)
>
> --
> The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a
> Linux Foundation Collaborative Project
> --
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2016-11-08 7:47 [PATCH v1] ufs: introduce setup_task_mgmt Kiwoong Kim
2016-11-08 19:02 ` Subhash Jadavani
2016-11-09 5:45 ` Kiwoong Kim
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