* [PATCH] scsi: ufs: introduce dev_cmd_notify callback
[not found] <CGME20220727051046epcas2p15481688ac3b7917bed8d06ebfb0a4184@epcas2p1.samsung.com>
@ 2022-07-27 5:09 ` Gyunghoon Kwon
2022-07-27 5:16 ` Avri Altman
0 siblings, 1 reply; 4+ messages in thread
From: Gyunghoon Kwon @ 2022-07-27 5:09 UTC (permalink / raw)
To: jejb, martin.petersen
Cc: alim.akhtar, avri.altman, bvanassche, linux-scsi, linux-kernel,
Gyunghoon Kwon
Some UFS host controller may need to synchronize dev command among
UFS host controllers.
Signed-off-by: Gyunghoon Kwon <goodjob.kwon@samsung.com>
---
drivers/ufs/core/ufshcd.c | 2 ++
include/ufs/ufshcd.h | 10 ++++++++++
2 files changed, 12 insertions(+)
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index c7b337480e3e..fb642c5e73a3 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -3021,8 +3021,10 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
ufshcd_add_query_upiu_trace(hba, UFS_QUERY_SEND, lrbp->ucd_req_ptr);
+ ufshcd_vops_dev_cmd_notify(hba, PRE_CHANGE);
ufshcd_send_command(hba, tag);
err = ufshcd_wait_for_dev_cmd(hba, lrbp, timeout);
+ ufshcd_vops_dev_cmd_notify(hba, POST_CHANGE);
ufshcd_add_query_upiu_trace(hba, err ? UFS_QUERY_ERR : UFS_QUERY_COMP,
(struct utp_upiu_req *)lrbp->ucd_rsp_ptr);
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
index a92271421718..376babf71432 100644
--- a/include/ufs/ufshcd.h
+++ b/include/ufs/ufshcd.h
@@ -293,6 +293,7 @@ struct ufs_pwr_mode_info {
* @config_scaling_param: called to configure clock scaling parameters
* @program_key: program or evict an inline encryption key
* @event_notify: called to notify important events
+ * @dev_cmd_notify: called to notify device management request is issued
*/
struct ufs_hba_variant_ops {
const char *name;
@@ -331,6 +332,8 @@ struct ufs_hba_variant_ops {
const union ufs_crypto_cfg_entry *cfg, int slot);
void (*event_notify)(struct ufs_hba *hba,
enum ufs_event_type evt, void *data);
+ void (*dev_cmd_notify)(struct ufs_hba *hba,
+ enum ufs_notify_change_status);
};
/* clock gating state */
@@ -1217,6 +1220,13 @@ static inline int ufshcd_vops_phy_initialization(struct ufs_hba *hba)
return 0;
}
+static inline void ufshcd_vops_dev_cmd_notify(struct ufs_hba *hba,
+ enum ufs_notify_change_status status)
+{
+ if (hba->vops && hba->vops->dev_cmd_notify)
+ hba->vops->dev_cmd_notify(hba, status);
+}
+
extern struct ufs_pm_lvl_states ufs_pm_lvl_states[];
int ufshcd_dump_regs(struct ufs_hba *hba, size_t offset, size_t len,
--
2.37.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* RE: [PATCH] scsi: ufs: introduce dev_cmd_notify callback
2022-07-27 5:09 ` [PATCH] scsi: ufs: introduce dev_cmd_notify callback Gyunghoon Kwon
@ 2022-07-27 5:16 ` Avri Altman
2022-07-27 17:54 ` Bart Van Assche
0 siblings, 1 reply; 4+ messages in thread
From: Avri Altman @ 2022-07-27 5:16 UTC (permalink / raw)
To: Gyunghoon Kwon, jejb, martin.petersen
Cc: alim.akhtar, bvanassche, linux-scsi, linux-kernel
>
> Some UFS host controller may need to synchronize dev command among UFS
> host controllers.
>
> Signed-off-by: Gyunghoon Kwon <goodjob.kwon@samsung.com>
You need to include at least one implementation of this vop,
Otherwise, its just a piece of dead code.
Thanks,
Avri
> ---
> drivers/ufs/core/ufshcd.c | 2 ++
> include/ufs/ufshcd.h | 10 ++++++++++
> 2 files changed, 12 insertions(+)
>
> diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index
> c7b337480e3e..fb642c5e73a3 100644
> --- a/drivers/ufs/core/ufshcd.c
> +++ b/drivers/ufs/core/ufshcd.c
> @@ -3021,8 +3021,10 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba
> *hba,
>
> ufshcd_add_query_upiu_trace(hba, UFS_QUERY_SEND, lrbp-
> >ucd_req_ptr);
>
> + ufshcd_vops_dev_cmd_notify(hba, PRE_CHANGE);
> ufshcd_send_command(hba, tag);
> err = ufshcd_wait_for_dev_cmd(hba, lrbp, timeout);
> + ufshcd_vops_dev_cmd_notify(hba, POST_CHANGE);
> ufshcd_add_query_upiu_trace(hba, err ? UFS_QUERY_ERR :
> UFS_QUERY_COMP,
> (struct utp_upiu_req *)lrbp->ucd_rsp_ptr);
>
> diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index
> a92271421718..376babf71432 100644
> --- a/include/ufs/ufshcd.h
> +++ b/include/ufs/ufshcd.h
> @@ -293,6 +293,7 @@ struct ufs_pwr_mode_info {
> * @config_scaling_param: called to configure clock scaling parameters
> * @program_key: program or evict an inline encryption key
> * @event_notify: called to notify important events
> + * @dev_cmd_notify: called to notify device management request is
> + issued
> */
> struct ufs_hba_variant_ops {
> const char *name;
> @@ -331,6 +332,8 @@ struct ufs_hba_variant_ops {
> const union ufs_crypto_cfg_entry *cfg, int slot);
> void (*event_notify)(struct ufs_hba *hba,
> enum ufs_event_type evt, void *data);
> + void (*dev_cmd_notify)(struct ufs_hba *hba,
> + enum ufs_notify_change_status);
> };
>
> /* clock gating state */
> @@ -1217,6 +1220,13 @@ static inline int
> ufshcd_vops_phy_initialization(struct ufs_hba *hba)
> return 0;
> }
>
> +static inline void ufshcd_vops_dev_cmd_notify(struct ufs_hba *hba,
> + enum ufs_notify_change_status
> +status) {
> + if (hba->vops && hba->vops->dev_cmd_notify)
> + hba->vops->dev_cmd_notify(hba, status); }
> +
> extern struct ufs_pm_lvl_states ufs_pm_lvl_states[];
>
> int ufshcd_dump_regs(struct ufs_hba *hba, size_t offset, size_t len,
> --
> 2.37.1
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] scsi: ufs: introduce dev_cmd_notify callback
2022-07-27 5:16 ` Avri Altman
@ 2022-07-27 17:54 ` Bart Van Assche
0 siblings, 0 replies; 4+ messages in thread
From: Bart Van Assche @ 2022-07-27 17:54 UTC (permalink / raw)
To: Avri Altman, Gyunghoon Kwon, jejb, martin.petersen
Cc: alim.akhtar, linux-scsi, linux-kernel
On 7/26/22 22:16, Avri Altman wrote:
>> Some UFS host controller may need to synchronize dev command among UFS
>> host controllers.
>
> You need to include at least one implementation of this vop,
> Otherwise, its just a piece of dead code.
+1
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH] scsi: ufs: introduce dev_cmd_notify callback
[not found] <CGME20220726104752epcas2p25991dabdb0acb21e25f21277f3198b09@epcas2p2.samsung.com>
@ 2022-07-26 10:45 ` Gyunghoon Kwon
0 siblings, 0 replies; 4+ messages in thread
From: Gyunghoon Kwon @ 2022-07-26 10:45 UTC (permalink / raw)
To: jejb, martin.petersen
Cc: alim.akhtar, avri.altman, linux-scsi, linux-kernel, Gyunghoon Kwon
Some UFS host controller may need to synchronize dev command among
UFS host controllers.
Signed-off-by: Gyunghoon Kwon <goodjob.kwon@samsung.com>
---
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 823ecd99eb2c..02d0350ee1a2 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2942,8 +2942,10 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
ufshcd_add_query_upiu_trace(hba, UFS_QUERY_SEND, lrbp->ucd_req_ptr);
+ ufshcd_vops_dev_cmd_notify(hba, PRE_CHANGE);
ufshcd_send_command(hba, tag);
err = ufshcd_wait_for_dev_cmd(hba, lrbp, timeout);
+ ufshcd_vops_dev_cmd_notify(hba, POST_CHANGE);
ufshcd_add_query_upiu_trace(hba, err ? UFS_QUERY_ERR : UFS_QUERY_COMP,
(struct utp_upiu_req *)lrbp->ucd_rsp_ptr);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 34c5db101f14..f13b6cdfbe1d 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -320,6 +320,7 @@ struct ufs_pwr_mode_info {
* @device_reset: called to issue a reset pulse on the UFS device
* @program_key: program or evict an inline encryption key
* @event_notify: called to notify important events
+ * @dev_cmd_notify: called to notify device management request is issued
*/
struct ufs_hba_variant_ops {
const char *name;
@@ -357,6 +358,8 @@ struct ufs_hba_variant_ops {
const union ufs_crypto_cfg_entry *cfg, int slot);
void (*event_notify)(struct ufs_hba *hba,
enum ufs_event_type evt, void *data);
+ void (*dev_cmd_notify)(struct ufs_hba *hba,
+ enum ufs_notify_change_status);
};
/* clock gating state */
@@ -1354,6 +1357,13 @@ static inline void ufshcd_vops_config_scaling_param(struct ufs_hba *hba,
hba->vops->config_scaling_param(hba, profile, data);
}
+static inline void ufshcd_vops_dev_cmd_notify(struct ufs_hba *hba,
+ enum ufs_notify_change_status status)
+{
+ if (hba->vops && hba->vops->dev_cmd_notify)
+ hba->vops->dev_cmd_notify(hba, status);
+}
+
extern struct ufs_pm_lvl_states ufs_pm_lvl_states[];
/*
--
2.37.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-07-27 18:55 UTC | newest]
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[not found] <CGME20220727051046epcas2p15481688ac3b7917bed8d06ebfb0a4184@epcas2p1.samsung.com>
2022-07-27 5:09 ` [PATCH] scsi: ufs: introduce dev_cmd_notify callback Gyunghoon Kwon
2022-07-27 5:16 ` Avri Altman
2022-07-27 17:54 ` Bart Van Assche
[not found] <CGME20220726104752epcas2p25991dabdb0acb21e25f21277f3198b09@epcas2p2.samsung.com>
2022-07-26 10:45 ` Gyunghoon Kwon
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