>
> /**
> + * ufshcd_dme_xxx_set - UIC command for DME_SET, DME_PEER_SET
> + * @hba: per adapter instance
> + * @attr_sel: uic command argument1
> + * @attr_set: attribute set type as uic command argument2
> + * @mib_val: setting value as uic command argument3
> + * @peer: indicate wherter peer or non-peer
> + *
> + * Returns 0 on success, non-zero value on failure
> + */
> +int ufshcd_dme_xxx_set(struct ufs_hba *hba, u32 attr_sel,
> + u8 attr_set, u32 mib_val, u8 peer)
> +{
> + struct uic_command uic_cmd = {0};
> + static const char *const action[] = {
> + "dme-set",
> + "dme-peer-set"
> + };
> + const char *set = action[!!peer];
> + int ret;
> +
> + uic_cmd.command = peer ?
> + UIC_CMD_DME_PEER_SET : UIC_CMD_DME_SET;
> + uic_cmd.argument1 = attr_sel;
> + uic_cmd.argument2 = UIC_ARG_ATTR_SET(attr_set);
> + uic_cmd.argument3 = mib_val;
> +
> + ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
> +
> + dev_dbg(hba->dev, "%s: error code %d\n", set, ret);
> +
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(ufshcd_dme_xxx_set);
> +
> +/**
> + * ufshcd_dme_xxx_get - UIC command for DME_GET, DME_PEER_GET
> + * @hba: per adapter instance
> + * @attr_sel: uic command argument1
> + * @mib_val: the value of the attribute as returned by the UIC command
> + * @peer: indicate wherter peer or non-peer
> + *
> + * Returns 0 on success, non-zero value on failure
> + */
> +int ufshcd_dme_xxx_get(struct ufs_hba *hba, u32 attr_sel,
> + u32 *mib_val, u8 peer)
> +{
> + struct uic_command uic_cmd = {0};
> + static const char *const action[] = {
> + "dme-get",
> + "dme-peer-get"
> + };
> + const char *get = action[!!peer];
> + int ret;
> +
> + uic_cmd.command = peer ?
> + UIC_CMD_DME_PEER_GET : UIC_CMD_DME_GET;
> + uic_cmd.argument1 = attr_sel;
> +
> + ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
> +
> + if (mib_val)
> + *mib_val = uic_cmd.argument3;
> +
> + dev_dbg(hba->dev, "%s: error code %d\n", get, ret);
> +
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(ufshcd_dme_xxx_get);
> +
> +/**
> * ufshcd_make_hba_operational - Make UFS controller operational
> * @hba: per adapter instance
> *
> @@ -1531,6 +1613,8 @@ static void ufshcd_uic_cmd_compl(struct ufs_hba *hba)
> {
> hba->active_uic_cmd->argument2 |=
> ufshcd_get_uic_cmd_result(hba);
> + hba->active_uic_cmd->argument3 =
> + ufshcd_get_dme_attr_val(hba);
> complete(&hba->active_uic_cmd->done);
> }
>
> diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
> index 974bd07..93965b9 100644
> --- a/drivers/scsi/ufs/ufshcd.h
> +++ b/drivers/scsi/ufs/ufshcd.h
> @@ -217,6 +217,11 @@ int ufshcd_init(struct device *, struct ufs_hba ** ,
> void __iomem * ,
> unsigned int);
> void ufshcd_remove(struct ufs_hba *);
>
> +extern int ufshcd_dme_xxx_set(struct ufs_hba *hba, u32 attr_sel,
> + u8 attr_set, u32 mib_val, u8 peer);
> +extern int ufshcd_dme_xxx_get(struct ufs_hba *hba, u32 attr_sel,
> + u32 *mib_val, u8 peer);
> +
> /**
> * ufshcd_hba_stop - Send controller to reset state
> * @hba: per adapter instance
> @@ -226,4 +231,29 @@ static inline void ufshcd_hba_stop(struct ufs_hba *hba)
> ufshcd_writel(hba, CONTROLLER_DISABLE, REG_CONTROLLER_ENABLE);
> }
>
> +/* UIC command interfaces for DME primitives */
> +static inline int ufshcd_dme_set(struct ufs_hba *hba, u32 attr_sel,
> + u8 attr_set, u32 mib_val)
> +{
> + return ufshcd_dme_xxx_set(hba, attr_sel, attr_set, mib_val, 0);
> +}
> +
> +static inline int ufshcd_dme_peer_set(struct ufs_hba *hba, u32 attr_sel,
> + u8 attr_set, u32 mib_val)
> +{
> + return ufshcd_dme_xxx_set(hba, attr_sel, attr_set, mib_val, 1);
> +}
> +
> +static inline int ufshcd_dme_get(struct ufs_hba *hba,
> + u32 attr_sel, u32 *mib_val)
> +{
> + return ufshcd_dme_xxx_get(hba, attr_sel, mib_val, 0);
> +}
> +
> +static inline int ufshcd_dme_peer_get(struct ufs_hba *hba,
> + u32 attr_sel, u32 *mib_val)
> +{
> + return ufshcd_dme_xxx_get(hba, attr_sel, mib_val, 1);
> +}
> +
ufshcd_dme_xxx_get/set() are being used to configure attributes. So it
is better to rename them as ufshcd_dme_attr_get/set().
--
~Santosh
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