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scsi: ufs: introduce setup_task_mgmt 

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>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Kiwoong Kim 2016-11-10 21:16:15 +09:00 committed by Martin K. Petersen
parent 0e675efa9e
commit d2877be42f
2 changed files with 12 additions and 0 deletions
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2
drivers/scsi/ufs/ufshcd.c
View File

@ -4357,6 +4357,8 @@ static int ufshcd_issue_tm_cmd(struct ufs_hba *hba, int lun_id, int task_id,
task_req_upiup->input_param1 = cpu_to_be32(lun_id);
task_req_upiup->input_param2 = cpu_to_be32(task_id);
ufshcd_vops_setup_task_mgmt(hba, free_slot, tm_function);
/* send command to the controller */
__set_bit(free_slot, &hba->outstanding_tasks);

10
drivers/scsi/ufs/ufshcd.h
View File

@ -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_scsi_cmd);
}
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)