lkml.org 
[lkml]   [2021]   [Feb]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] scsi: ufs: create a hook for unipro dme control
From
Date
On Mon, 2021-02-08 at 20:56 +0800, Leo Liou wrote:
> Based on ufshci spec, it defines that "Offset C0h to FFh" belong
> to vendor specific. If cpu vendor doesn't support these commands, it
> makes the dme errors:
>
> ufs: dme-set: attr-id 0xd041 val 0x1fff failed 0 retries
> ufs: dme-set: attr-id 0xd042 val 0xffff failed 0 retries
> ufs: dme-set: attr-id 0xd043 val 0x7fff failed 0 retries
>

Hi Leo
"Offset C0h to FFh" registers belong to the UFSHCI, but the attribtes
you moved belong to "DME Attributes for DME_SET-based High Level Power
Mode Control" defined in Unipro and doesen't say they are vendor-
defined attributes. How these two are associated?


Kind regards,
Bean

> Create a hook for unipro vendor-specific commands.
>
> Signed-off-by: Leo Liou <leoliou@google.com>
> ---
> drivers/scsi/ufs/ufs-qcom.c | 11 +++++++++++
> drivers/scsi/ufs/ufs-qcom.h | 5 +++++
> drivers/scsi/ufs/ufshcd.c | 7 +------
> drivers/scsi/ufs/ufshcd.h | 8 ++++++++
> drivers/scsi/ufs/unipro.h | 4 ----
> 5 files changed, 25 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-
> qcom.c
> index 2206b1e4b774..f2a925587029 100644
> --- a/drivers/scsi/ufs/ufs-qcom.c
> +++ b/drivers/scsi/ufs/ufs-qcom.c
> @@ -759,6 +759,16 @@ static int ufs_qcom_pwr_change_notify(struct
> ufs_hba *hba,
> return ret;
> }
>
> +static void ufs_qcom_unipro_dme_set(struct ufs_hba *hba)
> +{
> + ufshcd_dme_set(hba,
> UIC_ARG_MIB(DME_LocalFC0ProtectionTimeOutVal),
> + DL_FC0ProtectionTimeOutVal_Default);
> + ufshcd_dme_set(hba, UIC_ARG_MIB(DME_LocalTC0ReplayTimeOutVal),
> + DL_TC0ReplayTimeOutVal_Default);
> + ufshcd_dme_set(hba, UIC_ARG_MIB(DME_LocalAFC0ReqTimeOutVal),
> + DL_AFC0ReqTimeOutVal_Default);
> +}
> +
> static int ufs_qcom_quirk_host_pa_saveconfigtime(struct ufs_hba
> *hba)
> {
> int err;
> @@ -1469,6 +1479,7 @@ static const struct ufs_hba_variant_ops
> ufs_hba_qcom_vops = {
> .hce_enable_notify = ufs_qcom_hce_enable_notify,
> .link_startup_notify = ufs_qcom_link_startup_notify,
> .pwr_change_notify = ufs_qcom_pwr_change_notify,
> + .unipro_dme_set = ufs_qcom_unipro_dme_set,
> .apply_dev_quirks = ufs_qcom_apply_dev_quirks,
> .suspend = ufs_qcom_suspend,
> .resume = ufs_qcom_resume,
> diff --git a/drivers/scsi/ufs/ufs-qcom.h b/drivers/scsi/ufs/ufs-
> qcom.h
> index 8208e3a3ef59..83db97caaa1b 100644
> --- a/drivers/scsi/ufs/ufs-qcom.h
> +++ b/drivers/scsi/ufs/ufs-qcom.h
> @@ -124,6 +124,11 @@ enum {
> /* QUniPro Vendor specific attributes */
> #define PA_VS_CONFIG_REG1 0x9000
> #define DME_VS_CORE_CLK_CTRL 0xD002
> +
> +#define DME_LocalFC0ProtectionTimeOutVal 0xD041
> +#define DME_LocalTC0ReplayTimeOutVal 0xD042
> +#define DME_LocalAFC0ReqTimeOutVal 0xD043
> +
> /* bit and mask definitions for DME_VS_CORE_CLK_CTRL attribute */
> #define DME_VS_CORE_CLK_CTRL_CORE_CLK_DIV_EN_BIT BIT(8)
> #define DME_VS_CORE_CLK_CTRL_MAX_CORE_CLK_1US_CYCLES_MASK 0xFF
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index fb32d122f2e3..8ba2ce8c5d0c 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -4231,12 +4231,7 @@ static int ufshcd_change_power_mode(struct
> ufs_hba *hba,
> ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA5),
> DL_AFC1ReqTimeOutVal_Default);
>
> - ufshcd_dme_set(hba,
> UIC_ARG_MIB(DME_LocalFC0ProtectionTimeOutVal),
> - DL_FC0ProtectionTimeOutVal_Default);
> - ufshcd_dme_set(hba, UIC_ARG_MIB(DME_LocalTC0ReplayTimeOutVal),
> - DL_TC0ReplayTimeOutVal_Default);
> - ufshcd_dme_set(hba, UIC_ARG_MIB(DME_LocalAFC0ReqTimeOutVal),
> - DL_AFC0ReqTimeOutVal_Default);
> + ufshcd_vops_unipro_dme_set(hba);
>
> ret = ufshcd_uic_change_pwr_mode(hba, pwr_mode->pwr_rx << 4
> | pwr_mode->pwr_tx);
> diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
> index aa9ea3552323..b8c90bee7503 100644
> --- a/drivers/scsi/ufs/ufshcd.h
> +++ b/drivers/scsi/ufs/ufshcd.h
> @@ -311,6 +311,7 @@ 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.
> + * @unipro_dme_set: called when vendor speicific control is needed
> * @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
> @@ -342,6 +343,7 @@ struct ufs_hba_variant_ops {
> enum ufs_notify_change_status
> status,
> struct ufs_pa_layer_attr *,
> struct ufs_pa_layer_attr *);
> + void (*unipro_dme_set)(struct ufs_hba *hba);
> void (*setup_xfer_req)(struct ufs_hba *, int, bool);
> void (*setup_task_mgmt)(struct ufs_hba *, int, u8);
> void (*hibern8_notify)(struct ufs_hba *, enum uic_cmd_dme,
> @@ -1161,6 +1163,12 @@ static inline int
> ufshcd_vops_pwr_change_notify(struct ufs_hba *hba,
> return -ENOTSUPP;
> }
>
> +static inline void ufshcd_vops_unipro_dme_set(struct ufs_hba *hba)
> +{
> + if (hba->vops && hba->vops->unipro_dme_set)
> + return hba->vops->unipro_dme_set(hba);
> +}
> +
> static inline void ufshcd_vops_setup_xfer_req(struct ufs_hba *hba,
> int tag,
> bool is_scsi_cmd)
> {
> diff --git a/drivers/scsi/ufs/unipro.h b/drivers/scsi/ufs/unipro.h
> index 8e9e486a4f7b..224162e5afd8 100644
> --- a/drivers/scsi/ufs/unipro.h
> +++ b/drivers/scsi/ufs/unipro.h
> @@ -192,10 +192,6 @@
> #define DL_TC1ReplayTimeOutVal_Default 65535
> #define DL_AFC1ReqTimeOutVal_Default 32767
>
> -#define DME_LocalFC0ProtectionTimeOutVal 0xD041
> -#define DME_LocalTC0ReplayTimeOutVal 0xD042
> -#define DME_LocalAFC0ReqTimeOutVal 0xD043
> -
> /* PA power modes */
> enum {
> FAST_MODE = 1,

\
 
 \ /
  Last update: 2021-02-08 22:34    [W:0.059 / U:2.688 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site