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>

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 5d83f55..043e777 100644 (file)
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -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);
 

diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index e935fd1..05d8384 100644 (file)
--- 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_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)