Hi, Subhash
> On 2016-10-07 20:21, Kiwoong Kim wrote:
> > Some UFS host controller may need to configure some things before any
> > transfer request is issued.
> >
> > Signed-off-by: Kiwoong Kim <[email protected]>
> > ---
> > 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 05c7456..bb537db 100644
> > --- a/drivers/scsi/ufs/ufshcd.c
> > +++ b/drivers/scsi/ufs/ufshcd.c
> > @@ -1474,6 +1474,7 @@ 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); @@ -1683,6
> > +1684,7 @@ 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 430bef1..f37e5a4 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 @@
> > -283,6 +285,7 @@ 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);
> > @@ -799,6 +802,13 @@ 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_cmd_not_null)
>
> This might sound better: s/is_cmd_not_null/is_scsi_cmd ?
Okay.
And I think mail threading may be not avaiable in my environment
modifying a title of original message.
I would fix this issue or submit each patch at a time.
Thank you.
Regards.
>
> > +{
> > + if (hba->vops && hba->vops->setup_xfer_req)
> > + return hba->vops->setup_xfer_req(hba, tag,
> is_cmd_not_null); }
> > +
> > static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum
> > ufs_pm_op op) {
> > if (hba->vops && hba->vops->suspend)
>
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