* @type: device management command type - Query, NOP OUT
* @lock: lock to allow one command at a time
* @complete: internal commands completion
+ * @query: Device management query information
*/
struct ufs_dev_cmd {
enum dev_cmd_type type;
* @min_freq: min frequency that can be used for clock scaling
* @curr_freq: indicates the current frequency that it is set to
* @keep_link_active: indicates that the clk should not be disabled if
- link is active
+ * link is active
* @enabled: variable to check against multiple enable/disable
*/
struct ufs_clk_info {
* to set some things
* @hibern8_notify: called around hibern8 enter/exit
* @apply_dev_quirks: called to apply device specific quirks
+ * @fixup_dev_quirks: called to modify device specific quirks
* @suspend: called during host controller PM callback
* @resume: called during host controller PM callback
* @dbg_register_dump: used to dump controller debug information
* @phy_initialization: used to initialize phys
* @device_reset: called to issue a reset pulse on the UFS device
+ * @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
*/
* @is_initialized: Indicates whether clock gating is initialized or not
* @active_reqs: number of requests that are pending and should be waited for
* completion before gating clocks.
+ * @clk_gating_workq: workqueue for clock gating work.
*/
struct ufs_clk_gating {
struct delayed_work gate_work;
* @resume_work: worker to resume devfreq
* @min_gear: lowest HS gear to scale down to
* @is_enabled: tracks if scaling is currently enabled or not, controlled by
- clkscale_enable sysfs node
+ * clkscale_enable sysfs node
* @is_allowed: tracks if scaling is currently allowed or not, used to block
- clock scaling which is not invoked from devfreq governor
+ * clock scaling which is not invoked from devfreq governor
* @is_initialized: Indicates whether clock scaling is initialized or not
* @is_busy_started: tracks if busy period has started or not
* @is_suspended: tracks if devfreq is suspended or not
/**
* struct ufs_event_hist - keeps history of errors
* @pos: index to indicate cyclic buffer position
- * @reg: cyclic buffer for registers value
+ * @val: cyclic buffer for registers value
* @tstamp: cyclic buffer for time stamp
* @cnt: error counter
*/
* reset this after link-startup.
* @last_hibern8_exit_tstamp: Set time after the hibern8 exit.
* Clear after the first successful command completion.
+ * @event: array with event history.
*/
struct ufs_stats {
u32 last_intr_status;
* @host: Scsi_Host instance of the driver
* @dev: device handle
* @ufs_device_wlun: WLUN that controls the entire UFS device.
+ * @hwmon_device: device instance registered with the hwmon core.
+ * @curr_dev_pwr_mode: active UFS device power mode.
+ * @uic_link_state: active state of the link to the UFS device.
+ * @rpm_lvl: desired UFS power management level during runtime PM.
+ * @spm_lvl: desired UFS power management level during system PM.
+ * @pm_op_in_progress: whether or not a PM operation is in progress.
+ * @ahit: value of Auto-Hibernate Idle Timer register.
* @lrb: local reference block
* @outstanding_tasks: Bits representing outstanding task requests
* @outstanding_lock: Protects @outstanding_reqs.
* @reserved_slot: Used to submit device commands. Protected by @dev_cmd.lock.
* @ufs_version: UFS Version to which controller complies
* @vops: pointer to variant specific operations
+ * @vps: pointer to variant specific parameters
* @priv: pointer to variant specific private data
* @irq: Irq number of the controller
- * @active_uic_cmd: handle of active UIC command
- * @uic_cmd_mutex: mutex for UIC command
+ * @is_irq_enabled: whether or not the UFS controller interrupt is enabled.
+ * @dev_ref_clk_freq: reference clock frequency
+ * @quirks: bitmask with information about deviations from the UFSHCI standard.
+ * @dev_quirks: bitmask with information about deviations from the UFS standard.
* @tmf_tag_set: TMF tag set.
* @tmf_queue: Used to allocate TMF tags.
- * @pwr_done: completion for power mode change
+ * @tmf_rqs: array with pointers to TMF requests while these are in progress.
+ * @active_uic_cmd: handle of active UIC command
+ * @uic_cmd_mutex: mutex for UIC command
+ * @uic_async_done: completion used during UIC processing
* @ufshcd_state: UFSHCD state
* @eh_flags: Error handling flags
* @intr_mask: Interrupt Mask Bits
* @ee_ctrl_mask: Exception event control mask
+ * @ee_drv_mask: Exception event mask for driver
+ * @ee_usr_mask: Exception event mask for user (set via debugfs)
+ * @ee_ctrl_mutex: Used to serialize exception event information.
* @is_powered: flag to check if HBA is powered
* @shutting_down: flag to check if shutdown has been invoked
* @host_sem: semaphore used to serialize concurrent contexts
* @uic_error: UFS interconnect layer error status
* @saved_err: sticky error mask
* @saved_uic_err: sticky UIC error mask
+ * @ufs_stats: various error counters
* @force_reset: flag to force eh_work perform a full reset
* @force_pmc: flag to force a power mode change
* @silence_err_logs: flag to silence error logs
* @dev_cmd: ufs device management command information
* @last_dme_cmd_tstamp: time stamp of the last completed DME command
+ * @nop_out_timeout: NOP OUT timeout value
+ * @dev_info: information about the UFS device
* @auto_bkops_enabled: to track whether bkops is enabled in device
* @vreg_info: UFS device voltage regulator information
* @clk_list_head: UFS host controller clocks list node head
+ * @req_abort_count: number of times ufshcd_abort() has been called
+ * @lanes_per_direction: number of lanes per data direction between the UFS
+ * controller and the UFS device.
* @pwr_info: holds current power mode
* @max_pwr_info: keeps the device max valid pwm
- * @clk_scaling_lock: used to serialize device commands and clock scaling
- * @desc_size: descriptor sizes reported by device
+ * @clk_gating: information related to clock gating
+ * @caps: bitmask with information about UFS controller capabilities
+ * @devfreq: frequency scaling information owned by the devfreq core
+ * @clk_scaling: frequency scaling information owned by the UFS driver
+ * @is_sys_suspended: whether or not the entire system has been suspended
* @urgent_bkops_lvl: keeps track of urgent bkops level for device
* @is_urgent_bkops_lvl_checked: keeps track if the urgent bkops level for
* device is known or not.
+ * @clk_scaling_lock: used to serialize device commands and clock scaling
+ * @desc_size: descriptor sizes reported by device
* @scsi_block_reqs_cnt: reference counting for scsi block requests
+ * @bsg_dev: struct device associated with the BSG queue
+ * @bsg_queue: BSG queue associated with the UFS controller
+ * @rpm_dev_flush_recheck_work: used to suspend from RPM (runtime power
+ * management) after the UFS device has finished a WriteBooster buffer
+ * flush or auto BKOP.
+ * @ufshpb_dev: information related to HPB (Host Performance Booster).
+ * @monitor: statistics about UFS commands
* @crypto_capabilities: Content of crypto capabilities register (0x100)
* @crypto_cap_array: Array of crypto capabilities
* @crypto_cfg_register: Start of the crypto cfg array
* @crypto_profile: the crypto profile of this hba (if applicable)
+ * @debugfs_root: UFS controller debugfs root directory
+ * @debugfs_ee_work: used to restore ee_ctrl_mask after a delay
+ * @debugfs_ee_rate_limit_ms: user configurable delay after which to restore
+ * ee_ctrl_mask
+ * @luns_avail: number of regular and well known LUNs supported by the UFS
+ * device
+ * @complete_put: whether or not to call ufshcd_rpm_put() from inside
+ * ufshcd_resume_complete()
*/
struct ufs_hba {
void __iomem *mmio_base;
enum ufshcd_state ufshcd_state;
u32 eh_flags;
u32 intr_mask;
- u16 ee_ctrl_mask; /* Exception event mask */
- u16 ee_drv_mask; /* Exception event mask for driver */
- u16 ee_usr_mask; /* Exception event mask for user (via debugfs) */
+ u16 ee_ctrl_mask;
+ u16 ee_drv_mask;
+ u16 ee_usr_mask;
struct mutex ee_ctrl_mutex;
bool is_powered;
bool shutting_down;
readl((hba)->mmio_base + (reg))
/**
- * ufshcd_rmwl - read modify write into a register
- * @hba - per adapter instance
- * @mask - mask to apply on read value
- * @val - actual value to write
- * @reg - register address
+ * ufshcd_rmwl - perform read/modify/write for a controller register
+ * @hba: per adapter instance
+ * @mask: mask to apply on read value
+ * @val: actual value to write
+ * @reg: register address
*/
static inline void ufshcd_rmwl(struct ufs_hba *hba, u32 mask, u32 val, u32 reg)
{
/**
* ufshcd_set_variant - set variant specific data to the hba
- * @hba - per adapter instance
- * @variant - pointer to variant specific data
+ * @hba: per adapter instance
+ * @variant: pointer to variant specific data
*/
static inline void ufshcd_set_variant(struct ufs_hba *hba, void *variant)
{
/**
* ufshcd_get_variant - get variant specific data from the hba
- * @hba - per adapter instance
+ * @hba: per adapter instance
*/
static inline void *ufshcd_get_variant(struct ufs_hba *hba)
{
extern struct ufs_pm_lvl_states ufs_pm_lvl_states[];
-/*
+/**
* ufshcd_scsi_to_upiu_lun - maps scsi LUN to UPIU LUN
* @scsi_lun: scsi LUN id
*
projects / kernel.git / commitdiff