// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2022, Intel Corporation. */
#include "ice.h"
#include "ice_lib.h"
#include "ice_trace.h"
#include "ice_txclk.h"
#include <linux/dpll.h>
#include <linux/property.h>
#define ICE_CGU_STATE_ACQ_ERR_THRESHOLD 50
#define ICE_DPLL_PIN_IDX_INVALID 0xff
#define ICE_DPLL_RCLK_NUM_PER_PF 1
#define ICE_DPLL_PIN_ESYNC_PULSE_HIGH_PERCENT 25
#define ICE_DPLL_PIN_GEN_RCLK_FREQ 1953125
#define ICE_DPLL_PIN_PRIO_OUTPUT 0xff
#define ICE_DPLL_INPUT_REF_NUM 10
#define ICE_DPLL_PHASE_OFFSET_PERIOD 2
#define ICE_DPLL_SW_PIN_INPUT_BASE_SFP 4
#define ICE_DPLL_SW_PIN_INPUT_BASE_QSFP 6
#define ICE_DPLL_SW_PIN_OUTPUT_BASE 0
#define E825_RCLK_PARENT_0_PIN_IDX 0
#define E825_RCLK_PARENT_1_PIN_IDX 1
#define ICE_DPLL_PIN_SW_INPUT_ABS(in_idx) \
(ICE_DPLL_SW_PIN_INPUT_BASE_SFP + (in_idx))
#define ICE_DPLL_PIN_SW_1_INPUT_ABS_IDX \
(ICE_DPLL_PIN_SW_INPUT_ABS(ICE_DPLL_PIN_SW_1_IDX))
#define ICE_DPLL_PIN_SW_2_INPUT_ABS_IDX \
(ICE_DPLL_PIN_SW_INPUT_ABS(ICE_DPLL_PIN_SW_2_IDX))
#define ICE_DPLL_PIN_SW_OUTPUT_ABS(out_idx) \
(ICE_DPLL_SW_PIN_OUTPUT_BASE + (out_idx))
#define ICE_DPLL_PIN_SW_1_OUTPUT_ABS_IDX \
(ICE_DPLL_PIN_SW_OUTPUT_ABS(ICE_DPLL_PIN_SW_1_IDX))
#define ICE_DPLL_PIN_SW_2_OUTPUT_ABS_IDX \
(ICE_DPLL_PIN_SW_OUTPUT_ABS(ICE_DPLL_PIN_SW_2_IDX))
#define ICE_SR_PFA_DPLL_DEFAULTS 0x152
#define ICE_DPLL_PFA_REF_SYNC_TYPE 0x2420
#define ICE_DPLL_PFA_REF_SYNC_TYPE2 0x2424
#define ICE_DPLL_PFA_END 0xFFFF
#define ICE_DPLL_PFA_HEADER_LEN 4
#define ICE_DPLL_PFA_ENTRY_LEN 3
#define ICE_DPLL_PFA_MAILBOX_REF_SYNC_PIN_S 4
#define ICE_DPLL_PFA_MASK_OFFSET 1
#define ICE_DPLL_PFA_VALUE_OFFSET 2
#define ICE_DPLL_E810C_SFP_NC_PINS 2
#define ICE_DPLL_E810C_SFP_NC_START 4
/**
* enum ice_dpll_pin_type - enumerate ice pin types:
* @ICE_DPLL_PIN_INVALID: invalid pin type
* @ICE_DPLL_PIN_TYPE_INPUT: input pin
* @ICE_DPLL_PIN_TYPE_OUTPUT: output pin
* @ICE_DPLL_PIN_TYPE_RCLK_INPUT: recovery clock input pin
* @ICE_DPLL_PIN_TYPE_SOFTWARE: software controlled SMA/U.FL pins
* @ICE_DPLL_PIN_TYPE_TXCLK: transmit clock reference input pin
*/
enum ice_dpll_pin_type {
ICE_DPLL_PIN_INVALID,
ICE_DPLL_PIN_TYPE_INPUT,
ICE_DPLL_PIN_TYPE_OUTPUT,
ICE_DPLL_PIN_TYPE_RCLK_INPUT,
ICE_DPLL_PIN_TYPE_SOFTWARE,
ICE_DPLL_PIN_TYPE_TXCLK,
};
static const char * const pin_type_name[] = {
[ICE_DPLL_PIN_TYPE_INPUT] = "input",
[ICE_DPLL_PIN_TYPE_OUTPUT] = "output",
[ICE_DPLL_PIN_TYPE_RCLK_INPUT] = "rclk-input",
[ICE_DPLL_PIN_TYPE_SOFTWARE] = "software",
[ICE_DPLL_PIN_TYPE_TXCLK] = "txclk-input",
};
static const char * const ice_dpll_sw_pin_sma[] = { "SMA1", "SMA2" };
static const char * const ice_dpll_sw_pin_ufl[] = { "U.FL1", "U.FL2" };
static const char * const ice_dpll_ext_eref_pin = "EXT_EREF0";
static const char * const ice_dpll_fwnode_ext_synce = "clk_ref_synce";
static const struct dpll_pin_frequency ice_esync_range[] = {
DPLL_PIN_FREQUENCY_RANGE(0, DPLL_PIN_FREQUENCY_1_HZ),
};
/**
* ice_dpll_is_sw_pin - check if given pin shall be controlled by SW
* @pf: private board structure
* @index: index of a pin as understood by FW
* @input: true for input, false for output
*
* Check if the pin shall be controlled by SW - instead of providing raw access
* for pin control. For E810 NIC with dpll there is additional MUX-related logic
* between SMA/U.FL pins/connectors and dpll device, best to give user access
* with series of wrapper functions as from user perspective they convey single
* functionality rather then separated pins.
*
* Return:
* * true - pin controlled by SW
* * false - pin not controlled by SW
*/
static bool ice_dpll_is_sw_pin(struct ice_pf *pf, u8 index, bool input)
{
if (input && pf->hw.device_id == ICE_DEV_ID_E810C_QSFP)
index -= ICE_DPLL_SW_PIN_INPUT_BASE_QSFP -
ICE_DPLL_SW_PIN_INPUT_BASE_SFP;
if ((input && (index == ICE_DPLL_PIN_SW_1_INPUT_ABS_IDX ||
index == ICE_DPLL_PIN_SW_2_INPUT_ABS_IDX)) ||
(!input && (index == ICE_DPLL_PIN_SW_1_OUTPUT_ABS_IDX ||
index == ICE_DPLL_PIN_SW_2_OUTPUT_ABS_IDX)))
return true;
return false;
}
/**
* ice_dpll_is_reset - check if reset is in progress
* @pf: private board structure
* @extack: error reporting
*
* If reset is in progress, fill extack with error.
*
* Return:
* * false - no reset in progress
* * true - reset in progress
*/
static bool ice_dpll_is_reset(struct ice_pf *pf, struct netlink_ext_ack *extack)
{
if (ice_is_reset_in_progress(pf->state)) {
NL_SET_ERR_MSG(extack, "PF reset in progress");
return true;
}
return false;
}
/**
* ice_dpll_pin_freq_set - set pin's frequency
* @pf: private board structure
* @pin: pointer to a pin
* @pin_type: type of pin being configured
* @freq: frequency to be set
* @extack: error reporting
*
* Set requested frequency on a pin.
*
* Context: Called under pf->dplls.lock
* Return:
* * 0 - success
* * negative - error on AQ or wrong pin type given
*/
static int
ice_dpll_pin_freq_set(struct ice_pf *pf, struct ice_dpll_pin *pin,
enum ice_dpll_pin_type pin_type, const u32 freq,
struct netlink_ext_ack *extack)
{
u8 flags;
int ret;
switch (pin_type) {
case ICE_DPLL_PIN_TYPE_INPUT:
flags = ICE_AQC_SET_CGU_IN_CFG_FLG1_UPDATE_FREQ;
ret = ice_aq_set_input_pin_cfg(&pf->hw, pin->idx, flags,
pin->flags[0], freq, 0);
break;
case ICE_DPLL_PIN_TYPE_OUTPUT:
flags = ICE_AQC_SET_CGU_OUT_CFG_UPDATE_FREQ;
ret = ice_aq_set_output_pin_cfg(&pf->hw, pin->idx, flags,
0, freq, 0);
break;
default:
return -EINVAL;
}
if (ret) {
NL_SET_ERR_MSG_FMT(extack,
"err:%d %s failed to set pin freq:%u on pin:%u",
ret,
libie_aq_str(pf->hw.adminq.sq_last_status),
freq, pin->idx);
return ret;
}
pin->freq = freq;
return 0;
}
/**
* ice_dpll_frequency_set - wrapper for pin callback for set frequency
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: pointer to dpll
* @dpll_priv: private data pointer passed on dpll registration
* @frequency: frequency to be set
* @extack: error reporting
* @pin_type: type of pin being configured
*
* Wraps internal set frequency command on a pin.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - error pin not found or couldn't set in hw
*/
static int
ice_dpll_frequency_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
const u32 frequency,
struct netlink_ext_ack *extack,
enum ice_dpll_pin_type pin_type)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
int ret;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
ret = ice_dpll_pin_freq_set(pf, p, pin_type, frequency, extack);
mutex_unlock(&pf->dplls.lock);
return ret;
}
/**
* ice_dpll_input_frequency_set - input pin callback for set frequency
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: pointer to dpll
* @dpll_priv: private data pointer passed on dpll registration
* @frequency: frequency to be set
* @extack: error reporting
*
* Wraps internal set frequency command on a pin.
*
* Context: Calls a function which acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - error pin not found or couldn't set in hw
*/
static int
ice_dpll_input_frequency_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u64 frequency, struct netlink_ext_ack *extack)
{
return ice_dpll_frequency_set(pin, pin_priv, dpll, dpll_priv, frequency,
extack, ICE_DPLL_PIN_TYPE_INPUT);
}
/**
* ice_dpll_output_frequency_set - output pin callback for set frequency
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: pointer to dpll
* @dpll_priv: private data pointer passed on dpll registration
* @frequency: frequency to be set
* @extack: error reporting
*
* Wraps internal set frequency command on a pin.
*
* Context: Calls a function which acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - error pin not found or couldn't set in hw
*/
static int
ice_dpll_output_frequency_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u64 frequency, struct netlink_ext_ack *extack)
{
return ice_dpll_frequency_set(pin, pin_priv, dpll, dpll_priv, frequency,
extack, ICE_DPLL_PIN_TYPE_OUTPUT);
}
/**
* ice_dpll_frequency_get - wrapper for pin callback for get frequency
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: pointer to dpll
* @dpll_priv: private data pointer passed on dpll registration
* @frequency: on success holds pin's frequency
* @extack: error reporting
* @pin_type: type of pin being configured
*
* Wraps internal get frequency command of a pin.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - error pin not found or couldn't get from hw
*/
static int
ice_dpll_frequency_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u64 *frequency, struct netlink_ext_ack *extack,
enum ice_dpll_pin_type pin_type)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
mutex_lock(&pf->dplls.lock);
*frequency = p->freq;
mutex_unlock(&pf->dplls.lock);
return 0;
}
/**
* ice_dpll_input_frequency_get - input pin callback for get frequency
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: pointer to dpll
* @dpll_priv: private data pointer passed on dpll registration
* @frequency: on success holds pin's frequency
* @extack: error reporting
*
* Wraps internal get frequency command of a input pin.
*
* Context: Calls a function which acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - error pin not found or couldn't get from hw
*/
static int
ice_dpll_input_frequency_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u64 *frequency, struct netlink_ext_ack *extack)
{
return ice_dpll_frequency_get(pin, pin_priv, dpll, dpll_priv, frequency,
extack, ICE_DPLL_PIN_TYPE_INPUT);
}
/**
* ice_dpll_output_frequency_get - output pin callback for get frequency
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: pointer to dpll
* @dpll_priv: private data pointer passed on dpll registration
* @frequency: on success holds pin's frequency
* @extack: error reporting
*
* Wraps internal get frequency command of a pin.
*
* Context: Calls a function which acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - error pin not found or couldn't get from hw
*/
static int
ice_dpll_output_frequency_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u64 *frequency, struct netlink_ext_ack *extack)
{
return ice_dpll_frequency_get(pin, pin_priv, dpll, dpll_priv, frequency,
extack, ICE_DPLL_PIN_TYPE_OUTPUT);
}
/**
* ice_dpll_sw_pin_frequency_set - callback to set frequency of SW pin
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: pointer to dpll
* @dpll_priv: private data pointer passed on dpll registration
* @frequency: on success holds pin's frequency
* @extack: error reporting
*
* Calls set frequency command for corresponding and active input/output pin.
*
* Context: Calls a function which acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - error pin not active or couldn't get from hw
*/
static int
ice_dpll_sw_pin_frequency_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u64 frequency, struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *sma = pin_priv;
int ret;
if (!sma->active) {
NL_SET_ERR_MSG(extack, "pin is not active");
return -EINVAL;
}
if (sma->direction == DPLL_PIN_DIRECTION_INPUT)
ret = ice_dpll_input_frequency_set(NULL, sma->input, dpll,
dpll_priv, frequency,
extack);
else
ret = ice_dpll_output_frequency_set(NULL, sma->output, dpll,
dpll_priv, frequency,
extack);
return ret;
}
/**
* ice_dpll_sw_pin_frequency_get - callback for get frequency of SW pin
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: pointer to dpll
* @dpll_priv: private data pointer passed on dpll registration
* @frequency: on success holds pin's frequency
* @extack: error reporting
*
* Calls get frequency command for corresponding active input/output.
*
* Context: Calls a function which acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - error pin not active or couldn't get from hw
*/
static int
ice_dpll_sw_pin_frequency_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u64 *frequency, struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *sma = pin_priv;
int ret;
if (!sma->active) {
*frequency = 0;
return 0;
}
if (sma->direction == DPLL_PIN_DIRECTION_INPUT) {
ret = ice_dpll_input_frequency_get(NULL, sma->input, dpll,
dpll_priv, frequency,
extack);
} else {
ret = ice_dpll_output_frequency_get(NULL, sma->output, dpll,
dpll_priv, frequency,
extack);
}
return ret;
}
/**
* ice_dpll_pin_enable - enable a pin on dplls
* @hw: board private hw structure
* @pin: pointer to a pin
* @dpll_idx: dpll index to connect to output pin
* @pin_type: type of pin being enabled
* @extack: error reporting
*
* Enable a pin on both dplls. Store current state in pin->flags.
*
* Context: Called under pf->dplls.lock
* Return:
* * 0 - OK
* * negative - error
*/
static int
ice_dpll_pin_enable(struct ice_hw *hw, struct ice_dpll_pin *pin,
u8 dpll_idx, enum ice_dpll_pin_type pin_type,
struct netlink_ext_ack *extack)
{
u8 flags = 0;
int ret;
switch (pin_type) {
case ICE_DPLL_PIN_TYPE_INPUT:
if (pin->flags[0] & ICE_AQC_GET_CGU_IN_CFG_FLG2_ESYNC_EN)
flags |= ICE_AQC_SET_CGU_IN_CFG_FLG2_ESYNC_EN;
flags |= ICE_AQC_SET_CGU_IN_CFG_FLG2_INPUT_EN;
ret = ice_aq_set_input_pin_cfg(hw, pin->idx, 0, flags, 0, 0);
break;
case ICE_DPLL_PIN_TYPE_OUTPUT:
flags = ICE_AQC_SET_CGU_OUT_CFG_UPDATE_SRC_SEL;
if (pin->flags[0] & ICE_AQC_GET_CGU_OUT_CFG_ESYNC_EN)
flags |= ICE_AQC_SET_CGU_OUT_CFG_ESYNC_EN;
flags |= ICE_AQC_SET_CGU_OUT_CFG_OUT_EN;
ret = ice_aq_set_output_pin_cfg(hw, pin->idx, flags, dpll_idx,
0, 0);
break;
default:
return -EINVAL;
}
if (ret)
NL_SET_ERR_MSG_FMT(extack,
"err:%d %s failed to enable %s pin:%u",
ret, libie_aq_str(hw->adminq.sq_last_status),
pin_type_name[pin_type], pin->idx);
return ret;
}
/**
* ice_dpll_pin_disable - disable a pin on dplls
* @hw: board private hw structure
* @pin: pointer to a pin
* @pin_type: type of pin being disabled
* @extack: error reporting
*
* Disable a pin on both dplls. Store current state in pin->flags.
*
* Context: Called under pf->dplls.lock
* Return:
* * 0 - OK
* * negative - error
*/
static int
ice_dpll_pin_disable(struct ice_hw *hw, struct ice_dpll_pin *pin,
enum ice_dpll_pin_type pin_type,
struct netlink_ext_ack *extack)
{
u8 flags = 0;
int ret;
switch (pin_type) {
case ICE_DPLL_PIN_TYPE_INPUT:
if (pin->flags[0] & ICE_AQC_GET_CGU_IN_CFG_FLG2_ESYNC_EN)
flags |= ICE_AQC_SET_CGU_IN_CFG_FLG2_ESYNC_EN;
ret = ice_aq_set_input_pin_cfg(hw, pin->idx, 0, flags, 0, 0);
break;
case ICE_DPLL_PIN_TYPE_OUTPUT:
if (pin->flags[0] & ICE_AQC_GET_CGU_OUT_CFG_ESYNC_EN)
flags |= ICE_AQC_SET_CGU_OUT_CFG_ESYNC_EN;
ret = ice_aq_set_output_pin_cfg(hw, pin->idx, flags, 0, 0, 0);
break;
default:
return -EINVAL;
}
if (ret)
NL_SET_ERR_MSG_FMT(extack,
"err:%d %s failed to disable %s pin:%u",
ret, libie_aq_str(hw->adminq.sq_last_status),
pin_type_name[pin_type], pin->idx);
return ret;
}
/**
* ice_dpll_pin_store_state - updates the state of pin in SW bookkeeping
* @pin: pointer to a pin
* @parent: parent pin index
* @state: pin state (connected or disconnected)
*/
static void
ice_dpll_pin_store_state(struct ice_dpll_pin *pin, int parent, bool state)
{
pin->state[parent] = state ? DPLL_PIN_STATE_CONNECTED :
DPLL_PIN_STATE_DISCONNECTED;
}
/**
* ice_dpll_rclk_update_e825c - updates the state of rclk pin on e825c device
* @pf: private board struct
* @pin: pointer to a pin
*
* Update struct holding pin states info, states are separate for each parent
*
* Context: Called under pf->dplls.lock
* Return:
* * 0 - OK
* * negative - error
*/
static int ice_dpll_rclk_update_e825c(struct ice_pf *pf,
struct ice_dpll_pin *pin)
{
u8 rclk_bits;
int err;
u32 reg;
if (pf->dplls.rclk.num_parents > ICE_SYNCE_CLK_NUM)
return -EINVAL;
err = ice_read_cgu_reg(&pf->hw, ICE_CGU_R10, ®);
if (err)
return err;
rclk_bits = FIELD_GET(ICE_CGU_R10_SYNCE_S_REF_CLK, reg);
ice_dpll_pin_store_state(pin, ICE_SYNCE_CLK0, rclk_bits ==
(pf->ptp.port.port_num + ICE_CGU_BYPASS_MUX_OFFSET_E825C));
err = ice_read_cgu_reg(&pf->hw, ICE_CGU_R11, ®);
if (err)
return err;
rclk_bits = FIELD_GET(ICE_CGU_R11_SYNCE_S_BYP_CLK, reg);
ice_dpll_pin_store_state(pin, ICE_SYNCE_CLK1, rclk_bits ==
(pf->ptp.port.port_num + ICE_CGU_BYPASS_MUX_OFFSET_E825C));
return 0;
}
/**
* ice_dpll_rclk_update - updates the state of rclk pin on a device
* @pf: private board struct
* @pin: pointer to a pin
* @port_num: port number
*
* Update struct holding pin states info, states are separate for each parent
*
* Context: Called under pf->dplls.lock
* Return:
* * 0 - OK
* * negative - error
*/
static int ice_dpll_rclk_update(struct ice_pf *pf, struct ice_dpll_pin *pin,
u8 port_num)
{
int ret;
for (u8 parent = 0; parent < pf->dplls.rclk.num_parents; parent++) {
u8 p = parent;
ret = ice_aq_get_phy_rec_clk_out(&pf->hw, &p, &port_num,
&pin->flags[parent], NULL);
if (ret)
return ret;
ice_dpll_pin_store_state(pin, parent,
ICE_AQC_GET_PHY_REC_CLK_OUT_OUT_EN &
pin->flags[parent]);
}
return 0;
}
/**
* ice_dpll_sw_pins_update - update status of all SW pins
* @pf: private board struct
*
* Determine and update pin struct fields (direction/active) of their current
* values for all the SW controlled pins.
*
* Context: Call with pf->dplls.lock held
* Return:
* * 0 - OK
* * negative - error
*/
static int
ice_dpll_sw_pins_update(struct ice_pf *pf)
{
struct ice_dplls *d = &pf->dplls;
struct ice_dpll_pin *p;
u8 data = 0;
int ret;
ret = ice_read_sma_ctrl(&pf->hw, &data);
if (ret)
return ret;
/* no change since last check */
if (d->sma_data == data)
return 0;
/*
* SMA1/U.FL1 vs SMA2/U.FL2 are using different bit scheme to decide
* on their direction and if are active
*/
p = &d->sma[ICE_DPLL_PIN_SW_1_IDX];
p->active = true;
p->direction = DPLL_PIN_DIRECTION_INPUT;
if (data & ICE_SMA1_DIR_EN) {
p->direction = DPLL_PIN_DIRECTION_OUTPUT;
if (data & ICE_SMA1_TX_EN)
p->active = false;
}
p = &d->sma[ICE_DPLL_PIN_SW_2_IDX];
p->active = true;
p->direction = DPLL_PIN_DIRECTION_INPUT;
if ((data & ICE_SMA2_INACTIVE_MASK) == ICE_SMA2_INACTIVE_MASK)
p->active = false;
else if (data & ICE_SMA2_DIR_EN)
p->direction = DPLL_PIN_DIRECTION_OUTPUT;
p = &d->ufl[ICE_DPLL_PIN_SW_1_IDX];
if (!(data & (ICE_SMA1_DIR_EN | ICE_SMA1_TX_EN)))
p->active = true;
else
p->active = false;
p = &d->ufl[ICE_DPLL_PIN_SW_2_IDX];
p->active = (data & ICE_SMA2_DIR_EN) && !(data & ICE_SMA2_UFL2_RX_DIS);
d->sma_data = data;
return 0;
}
/**
* ice_dpll_pin_state_update - update pin's state
* @pf: private board struct
* @pin: structure with pin attributes to be updated
* @pin_type: type of pin being updated
* @extack: error reporting
*
* Determine pin current state and frequency, then update struct
* holding the pin info. For input pin states are separated for each
* dpll, for rclk pins states are separated for each parent.
*
* Context: Called under pf->dplls.lock
* Return:
* * 0 - OK
* * negative - error
*/
static int
ice_dpll_pin_state_update(struct ice_pf *pf, struct ice_dpll_pin *pin,
enum ice_dpll_pin_type pin_type,
struct netlink_ext_ack *extack)
{
u8 parent, port_num = ICE_AQC_SET_PHY_REC_CLK_OUT_CURR_PORT;
int ret;
switch (pin_type) {
case ICE_DPLL_PIN_TYPE_INPUT:
ret = ice_aq_get_input_pin_cfg(&pf->hw, pin->idx, &pin->status,
NULL, NULL, &pin->flags[0],
&pin->freq, &pin->phase_adjust);
if (ret)
goto err;
if (ICE_AQC_GET_CGU_IN_CFG_FLG2_INPUT_EN & pin->flags[0]) {
if (pin->pin) {
pin->state[pf->dplls.eec.dpll_idx] =
pin->pin == pf->dplls.eec.active_input ?
DPLL_PIN_STATE_CONNECTED :
DPLL_PIN_STATE_SELECTABLE;
pin->state[pf->dplls.pps.dpll_idx] =
pin->pin == pf->dplls.pps.active_input ?
DPLL_PIN_STATE_CONNECTED :
DPLL_PIN_STATE_SELECTABLE;
} else {
pin->state[pf->dplls.eec.dpll_idx] =
DPLL_PIN_STATE_SELECTABLE;
pin->state[pf->dplls.pps.dpll_idx] =
DPLL_PIN_STATE_SELECTABLE;
}
} else {
pin->state[pf->dplls.eec.dpll_idx] =
DPLL_PIN_STATE_DISCONNECTED;
pin->state[pf->dplls.pps.dpll_idx] =
DPLL_PIN_STATE_DISCONNECTED;
}
break;
case ICE_DPLL_PIN_TYPE_OUTPUT:
ret = ice_aq_get_output_pin_cfg(&pf->hw, pin->idx,
&pin->flags[0], &parent,
&pin->freq, NULL);
if (ret)
goto err;
parent &= ICE_AQC_GET_CGU_OUT_CFG_DPLL_SRC_SEL;
if (ICE_AQC_GET_CGU_OUT_CFG_OUT_EN & pin->flags[0]) {
pin->state[pf->dplls.eec.dpll_idx] =
parent == pf->dplls.eec.dpll_idx ?
DPLL_PIN_STATE_CONNECTED :
DPLL_PIN_STATE_DISCONNECTED;
pin->state[pf->dplls.pps.dpll_idx] =
parent == pf->dplls.pps.dpll_idx ?
DPLL_PIN_STATE_CONNECTED :
DPLL_PIN_STATE_DISCONNECTED;
} else {
pin->state[pf->dplls.eec.dpll_idx] =
DPLL_PIN_STATE_DISCONNECTED;
pin->state[pf->dplls.pps.dpll_idx] =
DPLL_PIN_STATE_DISCONNECTED;
}
break;
case ICE_DPLL_PIN_TYPE_RCLK_INPUT:
if (pf->hw.mac_type == ICE_MAC_GENERIC_3K_E825) {
ret = ice_dpll_rclk_update_e825c(pf, pin);
if (ret)
goto err;
} else {
ret = ice_dpll_rclk_update(pf, pin, port_num);
if (ret)
goto err;
}
break;
case ICE_DPLL_PIN_TYPE_SOFTWARE:
ret = ice_dpll_sw_pins_update(pf);
if (ret)
goto err;
break;
default:
return -EINVAL;
}
return 0;
err:
if (extack)
NL_SET_ERR_MSG_FMT(extack,
"err:%d %s failed to update %s pin:%u",
ret,
libie_aq_str(pf->hw.adminq.sq_last_status),
pin_type_name[pin_type], pin->idx);
else if (pf->hw.adminq.sq_last_status != LIBIE_AQ_RC_EBUSY)
dev_err_ratelimited(ice_pf_to_dev(pf),
"err:%d %s failed to update %s pin:%u\n",
ret,
libie_aq_str(pf->hw.adminq.sq_last_status),
pin_type_name[pin_type], pin->idx);
return ret;
}
/**
* ice_dpll_hw_input_prio_set - set input priority value in hardware
* @pf: board private structure
* @dpll: ice dpll pointer
* @pin: ice pin pointer
* @prio: priority value being set on a dpll
* @extack: error reporting
*
* Internal wrapper for setting the priority in the hardware.
*
* Context: Called under pf->dplls.lock
* Return:
* * 0 - success
* * negative - failure
*/
static int
ice_dpll_hw_input_prio_set(struct ice_pf *pf, struct ice_dpll *dpll,
struct ice_dpll_pin *pin, const u32 prio,
struct netlink_ext_ack *extack)
{
int ret;
ret = ice_aq_set_cgu_ref_prio(&pf->hw, dpll->dpll_idx, pin->idx,
(u8)prio);
if (ret)
NL_SET_ERR_MSG_FMT(extack,
"err:%d %s failed to set pin prio:%u on pin:%u",
ret,
libie_aq_str(pf->hw.adminq.sq_last_status),
prio, pin->idx);
else
dpll->input_prio[pin->idx] = prio;
return ret;
}
/**
* ice_dpll_lock_status_get - get dpll lock status callback
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @status: on success holds dpll's lock status
* @status_error: status error value
* @extack: error reporting
*
* Dpll subsystem callback, provides dpll's lock status.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - failure
*/
static int
ice_dpll_lock_status_get(const struct dpll_device *dpll, void *dpll_priv,
enum dpll_lock_status *status,
enum dpll_lock_status_error *status_error,
struct netlink_ext_ack *extack)
{
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
mutex_lock(&pf->dplls.lock);
*status = d->dpll_state;
mutex_unlock(&pf->dplls.lock);
return 0;
}
/**
* ice_dpll_mode_get - get dpll's working mode
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @mode: on success holds current working mode of dpll
* @extack: error reporting
*
* Dpll subsystem callback. Provides working mode of dpll.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - failure
*/
static int ice_dpll_mode_get(const struct dpll_device *dpll, void *dpll_priv,
enum dpll_mode *mode,
struct netlink_ext_ack *extack)
{
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
mutex_lock(&pf->dplls.lock);
*mode = d->mode;
mutex_unlock(&pf->dplls.lock);
return 0;
}
/**
* ice_dpll_phase_offset_monitor_set - set phase offset monitor state
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @state: feature state to be set
* @extack: error reporting
*
* Dpll subsystem callback. Enable/disable phase offset monitor feature of dpll.
*
* Context: Acquires and releases pf->dplls.lock
* Return: 0 - success
*/
static int ice_dpll_phase_offset_monitor_set(const struct dpll_device *dpll,
void *dpll_priv,
enum dpll_feature_state state,
struct netlink_ext_ack *extack)
{
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
mutex_lock(&pf->dplls.lock);
if (state == DPLL_FEATURE_STATE_ENABLE)
d->phase_offset_monitor_period = ICE_DPLL_PHASE_OFFSET_PERIOD;
else
d->phase_offset_monitor_period = 0;
mutex_unlock(&pf->dplls.lock);
return 0;
}
/**
* ice_dpll_phase_offset_monitor_get - get phase offset monitor state
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @state: on success holds current state of phase offset monitor
* @extack: error reporting
*
* Dpll subsystem callback. Provides current state of phase offset monitor
* features on dpll device.
*
* Context: Acquires and releases pf->dplls.lock
* Return: 0 - success
*/
static int ice_dpll_phase_offset_monitor_get(const struct dpll_device *dpll,
void *dpll_priv,
enum dpll_feature_state *state,
struct netlink_ext_ack *extack)
{
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
mutex_lock(&pf->dplls.lock);
if (d->phase_offset_monitor_period)
*state = DPLL_FEATURE_STATE_ENABLE;
else
*state = DPLL_FEATURE_STATE_DISABLE;
mutex_unlock(&pf->dplls.lock);
return 0;
}
/**
* ice_dpll_pin_state_set - set pin's state on dpll
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @enable: if pin shalll be enabled
* @extack: error reporting
* @pin_type: type of a pin
*
* Set pin state on a pin.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - OK or no change required
* * negative - error
*/
static int
ice_dpll_pin_state_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
bool enable, struct netlink_ext_ack *extack,
enum ice_dpll_pin_type pin_type)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
int ret;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
if (enable)
ret = ice_dpll_pin_enable(&pf->hw, p, d->dpll_idx, pin_type,
extack);
else
ret = ice_dpll_pin_disable(&pf->hw, p, pin_type, extack);
if (!ret)
ret = ice_dpll_pin_state_update(pf, p, pin_type, extack);
mutex_unlock(&pf->dplls.lock);
return ret;
}
/**
* ice_dpll_output_state_set - enable/disable output pin on dpll device
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: dpll being configured
* @dpll_priv: private data pointer passed on dpll registration
* @state: state of pin to be set
* @extack: error reporting
*
* Dpll subsystem callback. Set given state on output type pin.
*
* Context: Calls a function which acquires pf->dplls.lock
* Return:
* * 0 - successfully enabled mode
* * negative - failed to enable mode
*/
static int
ice_dpll_output_state_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
enum dpll_pin_state state,
struct netlink_ext_ack *extack)
{
bool enable = state == DPLL_PIN_STATE_CONNECTED;
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
if (state == DPLL_PIN_STATE_SELECTABLE)
return -EINVAL;
if (!enable && p->state[d->dpll_idx] == DPLL_PIN_STATE_DISCONNECTED)
return 0;
return ice_dpll_pin_state_set(pin, pin_priv, dpll, dpll_priv, enable,
extack, ICE_DPLL_PIN_TYPE_OUTPUT);
}
/**
* ice_dpll_input_state_set - enable/disable input pin on dpll levice
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: dpll being configured
* @dpll_priv: private data pointer passed on dpll registration
* @state: state of pin to be set
* @extack: error reporting
*
* Dpll subsystem callback. Enables given mode on input type pin.
*
* Context: Calls a function which acquires pf->dplls.lock
* Return:
* * 0 - successfully enabled mode
* * negative - failed to enable mode
*/
static int
ice_dpll_input_state_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
enum dpll_pin_state state,
struct netlink_ext_ack *extack)
{
bool enable = state == DPLL_PIN_STATE_SELECTABLE;
return ice_dpll_pin_state_set(pin, pin_priv, dpll, dpll_priv, enable,
extack, ICE_DPLL_PIN_TYPE_INPUT);
}
/**
* ice_dpll_pin_state_get - set pin's state on dpll
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @state: on success holds state of the pin
* @extack: error reporting
* @pin_type: type of questioned pin
*
* Determine pin state set it on a pin.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - failed to get state
*/
static int
ice_dpll_pin_state_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
enum dpll_pin_state *state,
struct netlink_ext_ack *extack,
enum ice_dpll_pin_type pin_type)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
int ret;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
ret = ice_dpll_pin_state_update(pf, p, pin_type, extack);
if (ret)
goto unlock;
if (pin_type == ICE_DPLL_PIN_TYPE_INPUT ||
pin_type == ICE_DPLL_PIN_TYPE_OUTPUT)
*state = p->state[d->dpll_idx];
ret = 0;
unlock:
mutex_unlock(&pf->dplls.lock);
return ret;
}
/**
* ice_dpll_output_state_get - get output pin state on dpll device
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @state: on success holds state of the pin
* @extack: error reporting
*
* Dpll subsystem callback. Check state of a pin.
*
* Context: Calls a function which acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - failed to get state
*/
static int
ice_dpll_output_state_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
enum dpll_pin_state *state,
struct netlink_ext_ack *extack)
{
return ice_dpll_pin_state_get(pin, pin_priv, dpll, dpll_priv, state,
extack, ICE_DPLL_PIN_TYPE_OUTPUT);
}
/**
* ice_dpll_input_state_get - get input pin state on dpll device
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @state: on success holds state of the pin
* @extack: error reporting
*
* Dpll subsystem callback. Check state of a input pin.
*
* Context: Calls a function which acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - failed to get state
*/
static int
ice_dpll_input_state_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
enum dpll_pin_state *state,
struct netlink_ext_ack *extack)
{
return ice_dpll_pin_state_get(pin, pin_priv, dpll, dpll_priv, state,
extack, ICE_DPLL_PIN_TYPE_INPUT);
}
/**
* ice_dpll_sw_pin_notify_peer - notify the paired SW pin after a state change
* @d: pointer to dplls struct
* @changed: the SW pin that was explicitly changed (already notified by dpll core)
*
* SMA and U.FL pins share physical signal paths in pairs (SMA1/U.FL1 and
* SMA2/U.FL2). When one pin's routing changes via the PCA9575 GPIO
* expander, the paired pin's state may also change. Send a change
* notification for the peer pin so userspace consumers monitoring the
* peer via dpll netlink learn about the update.
*
* Context: Called from dpll_pin_ops callbacks after pf->dplls.lock is
* released. Uses __dpll_pin_change_ntf() because dpll_lock is
* still held by the dpll netlink layer.
*/
static void ice_dpll_sw_pin_notify_peer(struct ice_dplls *d,
struct ice_dpll_pin *changed)
{
struct ice_dpll_pin *peer;
peer = (changed >= d->sma && changed < d->sma + ICE_DPLL_PIN_SW_NUM) ?
&d->ufl[changed->idx] : &d->sma[changed->idx];
if (peer->pin)
__dpll_pin_change_ntf(peer->pin);
}
/**
* ice_dpll_sma_direction_set - set direction of SMA pin
* @p: pointer to a pin
* @direction: requested direction of the pin
* @extack: error reporting
*
* Wrapper for dpll subsystem callback. Set direction of a SMA pin.
*
* Context: Call with pf->dplls.lock held
* Return:
* * 0 - success
* * negative - failed to get state
*/
static int ice_dpll_sma_direction_set(struct ice_dpll_pin *p,
enum dpll_pin_direction direction,
struct netlink_ext_ack *extack)
{
struct ice_dplls *d = &p->pf->dplls;
struct ice_dpll_pin *peer;
u8 data;
int ret;
if (p->direction == direction && p->active)
return 0;
ret = ice_read_sma_ctrl(&p->pf->hw, &data);
if (ret)
return ret;
switch (p->idx) {
case ICE_DPLL_PIN_SW_1_IDX:
data &= ~ICE_SMA1_MASK;
if (direction == DPLL_PIN_DIRECTION_OUTPUT)
data |= ICE_SMA1_DIR_EN;
break;
case ICE_DPLL_PIN_SW_2_IDX:
if (direction == DPLL_PIN_DIRECTION_INPUT) {
data &= ~ICE_SMA2_DIR_EN;
data |= ICE_SMA2_UFL2_RX_DIS;
} else {
data &= ~(ICE_SMA2_TX_EN | ICE_SMA2_UFL2_RX_DIS);
data |= ICE_SMA2_DIR_EN;
}
break;
default:
return -EINVAL;
}
ret = ice_write_sma_ctrl(&p->pf->hw, data);
if (!ret)
ret = ice_dpll_pin_state_update(p->pf, p,
ICE_DPLL_PIN_TYPE_SOFTWARE,
extack);
if (ret)
return ret;
/* When a direction change activates the paired U.FL pin, enable
* its backing CGU pin so the pin reports as connected. Without
* this the U.FL routing is correct but the CGU pin stays disabled
* and userspace sees the pin as disconnected. Do not disable the
* backing pin when U.FL becomes inactive because the SMA pin may
* still be using it.
*/
peer = &d->ufl[p->idx];
if (peer->active) {
struct ice_dpll_pin *target;
enum ice_dpll_pin_type type;
if (peer->output) {
target = peer->output;
type = ICE_DPLL_PIN_TYPE_OUTPUT;
} else {
target = peer->input;
type = ICE_DPLL_PIN_TYPE_INPUT;
}
ret = ice_dpll_pin_enable(&p->pf->hw, target,
d->eec.dpll_idx, type, extack);
if (!ret)
ret = ice_dpll_pin_state_update(p->pf, target,
type, extack);
}
return ret;
}
/**
* ice_dpll_ufl_pin_state_set - set U.FL pin state on dpll device
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @state: requested state of the pin
* @extack: error reporting
*
* Dpll subsystem callback. Set the state of a pin.
*
* Context: Acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_ufl_pin_state_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
enum dpll_pin_state state,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv, *target;
struct ice_dpll *d = dpll_priv;
enum ice_dpll_pin_type type;
struct ice_pf *pf = p->pf;
struct ice_hw *hw;
bool enable;
u8 data;
int ret;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
hw = &pf->hw;
ret = ice_read_sma_ctrl(hw, &data);
if (ret)
goto unlock;
ret = -EINVAL;
switch (p->idx) {
case ICE_DPLL_PIN_SW_1_IDX:
if (state == DPLL_PIN_STATE_CONNECTED) {
data &= ~ICE_SMA1_MASK;
enable = true;
} else if (state == DPLL_PIN_STATE_DISCONNECTED) {
/* Skip if U.FL1 is not active, setting TX_EN
* while DIR_EN is set would also deactivate
* the paired SMA1 output.
*/
if (data & (ICE_SMA1_DIR_EN | ICE_SMA1_TX_EN)) {
ret = 0;
goto unlock;
}
data |= ICE_SMA1_TX_EN;
enable = false;
} else {
goto unlock;
}
target = p->output;
type = ICE_DPLL_PIN_TYPE_OUTPUT;
break;
case ICE_DPLL_PIN_SW_2_IDX:
if (state == DPLL_PIN_STATE_SELECTABLE) {
data |= ICE_SMA2_DIR_EN;
data &= ~ICE_SMA2_UFL2_RX_DIS;
enable = true;
} else if (state == DPLL_PIN_STATE_DISCONNECTED) {
/* Skip if U.FL2 is not active, setting
* UFL2_RX_DIS could also disable the paired
* SMA2 input.
*/
if (!(data & ICE_SMA2_DIR_EN) ||
(data & ICE_SMA2_UFL2_RX_DIS)) {
ret = 0;
goto unlock;
}
data |= ICE_SMA2_UFL2_RX_DIS;
enable = false;
} else {
goto unlock;
}
target = p->input;
type = ICE_DPLL_PIN_TYPE_INPUT;
break;
default:
goto unlock;
}
ret = ice_write_sma_ctrl(hw, data);
if (ret)
goto unlock;
ret = ice_dpll_pin_state_update(pf, p, ICE_DPLL_PIN_TYPE_SOFTWARE,
extack);
if (ret)
goto unlock;
if (enable)
ret = ice_dpll_pin_enable(hw, target, d->dpll_idx, type, extack);
else
ret = ice_dpll_pin_disable(hw, target, type, extack);
if (!ret)
ret = ice_dpll_pin_state_update(pf, target, type, extack);
unlock:
mutex_unlock(&pf->dplls.lock);
if (!ret)
ice_dpll_sw_pin_notify_peer(&pf->dplls, p);
return ret;
}
/**
* ice_dpll_sw_pin_state_get - get SW pin state
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @state: on success holds state of the pin
* @extack: error reporting
*
* Dpll subsystem callback. Check state of a SW pin.
*
* Context: Acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_sw_pin_state_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
enum dpll_pin_state *state,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = p->pf;
int ret = 0;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
if (!p->active) {
*state = DPLL_PIN_STATE_DISCONNECTED;
goto unlock;
}
if (p->direction == DPLL_PIN_DIRECTION_INPUT) {
ret = ice_dpll_pin_state_update(pf, p->input,
ICE_DPLL_PIN_TYPE_INPUT,
extack);
if (ret)
goto unlock;
*state = p->input->state[d->dpll_idx];
} else {
ret = ice_dpll_pin_state_update(pf, p->output,
ICE_DPLL_PIN_TYPE_OUTPUT,
extack);
if (ret)
goto unlock;
*state = p->output->state[d->dpll_idx];
}
unlock:
mutex_unlock(&pf->dplls.lock);
return ret;
}
/**
* ice_dpll_sma_pin_state_set - set SMA pin state on dpll device
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @state: requested state of the pin
* @extack: error reporting
*
* Dpll subsystem callback. Set state of a pin.
*
* Context: Acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - failed to get state
*/
static int
ice_dpll_sma_pin_state_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
enum dpll_pin_state state,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *sma = pin_priv, *target;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = sma->pf;
enum ice_dpll_pin_type type;
bool enable;
int ret;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
if (!sma->active) {
ret = ice_dpll_sma_direction_set(sma, sma->direction, extack);
if (ret)
goto unlock;
}
if (sma->direction == DPLL_PIN_DIRECTION_INPUT) {
enable = state == DPLL_PIN_STATE_SELECTABLE;
target = sma->input;
type = ICE_DPLL_PIN_TYPE_INPUT;
} else {
enable = state == DPLL_PIN_STATE_CONNECTED;
target = sma->output;
type = ICE_DPLL_PIN_TYPE_OUTPUT;
}
if (enable)
ret = ice_dpll_pin_enable(&pf->hw, target, d->dpll_idx, type,
extack);
else
ret = ice_dpll_pin_disable(&pf->hw, target, type, extack);
if (!ret)
ret = ice_dpll_pin_state_update(pf, target, type, extack);
unlock:
mutex_unlock(&pf->dplls.lock);
if (!ret)
ice_dpll_sw_pin_notify_peer(&pf->dplls, sma);
return ret;
}
/**
* ice_dpll_input_prio_get - get dpll's input prio
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @prio: on success - returns input priority on dpll
* @extack: error reporting
*
* Dpll subsystem callback. Handler for getting priority of a input pin.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - failure
*/
static int
ice_dpll_input_prio_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u32 *prio, struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
mutex_lock(&pf->dplls.lock);
*prio = d->input_prio[p->idx];
mutex_unlock(&pf->dplls.lock);
return 0;
}
/**
* ice_dpll_input_prio_set - set dpll input prio
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @prio: input priority to be set on dpll
* @extack: error reporting
*
* Dpll subsystem callback. Handler for setting priority of a input pin.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - failure
*/
static int
ice_dpll_input_prio_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u32 prio, struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
int ret;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
ret = ice_dpll_hw_input_prio_set(pf, d, p, prio, extack);
mutex_unlock(&pf->dplls.lock);
return ret;
}
static int
ice_dpll_sw_input_prio_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u32 *prio, struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
mutex_lock(&pf->dplls.lock);
if (p->input && p->direction == DPLL_PIN_DIRECTION_INPUT)
*prio = d->input_prio[p->input->idx];
else
*prio = ICE_DPLL_PIN_PRIO_OUTPUT;
mutex_unlock(&pf->dplls.lock);
return 0;
}
static int
ice_dpll_sw_input_prio_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u32 prio, struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
int ret;
if (!p->input || p->direction != DPLL_PIN_DIRECTION_INPUT)
return -EINVAL;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
ret = ice_dpll_hw_input_prio_set(pf, d, p->input, prio, extack);
mutex_unlock(&pf->dplls.lock);
return ret;
}
/**
* ice_dpll_input_direction - callback for get input pin direction
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @direction: holds input pin direction
* @extack: error reporting
*
* Dpll subsystem callback. Handler for getting direction of a input pin.
*
* Return:
* * 0 - success
*/
static int
ice_dpll_input_direction(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
enum dpll_pin_direction *direction,
struct netlink_ext_ack *extack)
{
*direction = DPLL_PIN_DIRECTION_INPUT;
return 0;
}
/**
* ice_dpll_output_direction - callback for get output pin direction
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @direction: holds output pin direction
* @extack: error reporting
*
* Dpll subsystem callback. Handler for getting direction of an output pin.
*
* Return:
* * 0 - success
*/
static int
ice_dpll_output_direction(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
enum dpll_pin_direction *direction,
struct netlink_ext_ack *extack)
{
*direction = DPLL_PIN_DIRECTION_OUTPUT;
return 0;
}
/**
* ice_dpll_pin_sma_direction_set - callback for set SMA pin direction
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @direction: requested pin direction
* @extack: error reporting
*
* Dpll subsystem callback. Handler for setting direction of a SMA pin.
*
* Context: Acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_pin_sma_direction_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
enum dpll_pin_direction direction,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_pf *pf = p->pf;
int ret;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
ret = ice_dpll_sma_direction_set(p, direction, extack);
mutex_unlock(&pf->dplls.lock);
if (!ret)
ice_dpll_sw_pin_notify_peer(&pf->dplls, p);
return ret;
}
/**
* ice_dpll_pin_sw_direction_get - callback for get SW pin direction
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @direction: on success holds pin direction
* @extack: error reporting
*
* Dpll subsystem callback. Handler for getting direction of a SMA pin.
*
* Context: Acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_pin_sw_direction_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
enum dpll_pin_direction *direction,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_pf *pf = p->pf;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
*direction = p->direction;
mutex_unlock(&pf->dplls.lock);
return 0;
}
/**
* ice_dpll_pin_phase_adjust_get - callback for get pin phase adjust value
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @phase_adjust: on success holds pin phase_adjust value
* @extack: error reporting
*
* Dpll subsystem callback. Handler for getting phase adjust value of a pin.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_pin_phase_adjust_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
s32 *phase_adjust,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_pf *pf = p->pf;
mutex_lock(&pf->dplls.lock);
*phase_adjust = p->phase_adjust;
mutex_unlock(&pf->dplls.lock);
return 0;
}
/**
* ice_dpll_pin_phase_adjust_set - helper for setting a pin phase adjust value
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @phase_adjust: phase_adjust to be set
* @extack: error reporting
* @type: type of a pin
*
* Helper for dpll subsystem callback. Handler for setting phase adjust value
* of a pin.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_pin_phase_adjust_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
s32 phase_adjust,
struct netlink_ext_ack *extack,
enum ice_dpll_pin_type type)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
u8 flag, flags_en = 0;
int ret;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
switch (type) {
case ICE_DPLL_PIN_TYPE_INPUT:
flag = ICE_AQC_SET_CGU_IN_CFG_FLG1_UPDATE_DELAY;
if (p->flags[0] & ICE_AQC_GET_CGU_IN_CFG_FLG2_ESYNC_EN)
flags_en |= ICE_AQC_SET_CGU_IN_CFG_FLG2_ESYNC_EN;
if (p->flags[0] & ICE_AQC_GET_CGU_IN_CFG_FLG2_INPUT_EN)
flags_en |= ICE_AQC_SET_CGU_IN_CFG_FLG2_INPUT_EN;
ret = ice_aq_set_input_pin_cfg(&pf->hw, p->idx, flag, flags_en,
0, phase_adjust);
break;
case ICE_DPLL_PIN_TYPE_OUTPUT:
flag = ICE_AQC_SET_CGU_OUT_CFG_UPDATE_PHASE;
if (p->flags[0] & ICE_AQC_GET_CGU_OUT_CFG_OUT_EN)
flag |= ICE_AQC_SET_CGU_OUT_CFG_OUT_EN;
if (p->flags[0] & ICE_AQC_GET_CGU_OUT_CFG_ESYNC_EN)
flag |= ICE_AQC_SET_CGU_OUT_CFG_ESYNC_EN;
ret = ice_aq_set_output_pin_cfg(&pf->hw, p->idx, flag, 0, 0,
phase_adjust);
break;
default:
ret = -EINVAL;
}
if (!ret)
p->phase_adjust = phase_adjust;
mutex_unlock(&pf->dplls.lock);
if (ret)
NL_SET_ERR_MSG_FMT(extack,
"err:%d %s failed to set pin phase_adjust:%d for pin:%u on dpll:%u",
ret,
libie_aq_str(pf->hw.adminq.sq_last_status),
phase_adjust, p->idx, d->dpll_idx);
return ret;
}
/**
* ice_dpll_input_phase_adjust_set - callback for set input pin phase adjust
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @phase_adjust: phase_adjust to be set
* @extack: error reporting
*
* Dpll subsystem callback. Wraps a handler for setting phase adjust on input
* pin.
*
* Context: Calls a function which acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_input_phase_adjust_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
s32 phase_adjust,
struct netlink_ext_ack *extack)
{
return ice_dpll_pin_phase_adjust_set(pin, pin_priv, dpll, dpll_priv,
phase_adjust, extack,
ICE_DPLL_PIN_TYPE_INPUT);
}
/**
* ice_dpll_output_phase_adjust_set - callback for set output pin phase adjust
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @phase_adjust: phase_adjust to be set
* @extack: error reporting
*
* Dpll subsystem callback. Wraps a handler for setting phase adjust on output
* pin.
*
* Context: Calls a function which acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_output_phase_adjust_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
s32 phase_adjust,
struct netlink_ext_ack *extack)
{
return ice_dpll_pin_phase_adjust_set(pin, pin_priv, dpll, dpll_priv,
phase_adjust, extack,
ICE_DPLL_PIN_TYPE_OUTPUT);
}
/**
* ice_dpll_sw_phase_adjust_get - callback for get SW pin phase adjust
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @phase_adjust: on success holds phase adjust value
* @extack: error reporting
*
* Dpll subsystem callback. Wraps a handler for getting phase adjust on sw
* pin.
*
* Context: Calls a function which acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_sw_phase_adjust_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
s32 *phase_adjust,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
if (p->direction == DPLL_PIN_DIRECTION_INPUT)
return ice_dpll_pin_phase_adjust_get(p->input->pin, p->input,
dpll, dpll_priv,
phase_adjust, extack);
else
return ice_dpll_pin_phase_adjust_get(p->output->pin, p->output,
dpll, dpll_priv,
phase_adjust, extack);
}
/**
* ice_dpll_sw_phase_adjust_set - callback for set SW pin phase adjust value
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @phase_adjust: phase_adjust to be set
* @extack: error reporting
*
* Dpll subsystem callback. Wraps a handler for setting phase adjust on output
* pin.
*
* Context: Calls a function which acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_sw_phase_adjust_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
s32 phase_adjust,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
if (!p->active) {
NL_SET_ERR_MSG(extack, "pin is not active");
return -EINVAL;
}
if (p->direction == DPLL_PIN_DIRECTION_INPUT)
return ice_dpll_pin_phase_adjust_set(p->input->pin, p->input,
dpll, dpll_priv,
phase_adjust, extack,
ICE_DPLL_PIN_TYPE_INPUT);
else
return ice_dpll_pin_phase_adjust_set(p->output->pin, p->output,
dpll, dpll_priv,
phase_adjust, extack,
ICE_DPLL_PIN_TYPE_OUTPUT);
}
#define ICE_DPLL_PHASE_OFFSET_DIVIDER 100
#define ICE_DPLL_PHASE_OFFSET_FACTOR \
(DPLL_PHASE_OFFSET_DIVIDER / ICE_DPLL_PHASE_OFFSET_DIVIDER)
/**
* ice_dpll_phase_offset_get - callback for get dpll phase shift value
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @phase_offset: on success holds pin phase_offset value
* @extack: error reporting
*
* Dpll subsystem callback. Handler for getting phase shift value between
* dpll's input and output.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_phase_offset_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
s64 *phase_offset, struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
mutex_lock(&pf->dplls.lock);
if (d->active_input == pin || (p->input &&
d->active_input == p->input->pin))
*phase_offset = d->phase_offset * ICE_DPLL_PHASE_OFFSET_FACTOR;
else if (d->phase_offset_monitor_period)
*phase_offset = (p->input &&
p->direction == DPLL_PIN_DIRECTION_INPUT ?
p->input->phase_offset :
p->phase_offset) * ICE_DPLL_PHASE_OFFSET_FACTOR;
else
*phase_offset = 0;
mutex_unlock(&pf->dplls.lock);
return 0;
}
/**
* ice_dpll_synce_update_e825c - setting PHY recovered clock pins on e825c
* @hw: Pointer to the HW struct
* @ena: true if enable, false in disable
* @port_num: port number
* @output: output pin, we have two in E825C
*
* DPLL subsystem callback. Set proper signals to recover clock from port.
*
* Context: Called under pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int ice_dpll_synce_update_e825c(struct ice_hw *hw, bool ena,
u32 port_num, enum ice_synce_clk output)
{
int err;
/* configure the mux to deliver proper signal to DPLL from the MUX */
err = ice_tspll_cfg_bypass_mux_e825c(hw, ena, port_num, output);
if (err)
return err;
err = ice_tspll_cfg_synce_ethdiv_e825c(hw, output);
if (err)
return err;
dev_dbg(ice_hw_to_dev(hw), "CLK_SYNCE%u recovered clock: pin %s\n",
output, str_enabled_disabled(ena));
return 0;
}
/**
* ice_dpll_output_esync_set - callback for setting embedded sync
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @freq: requested embedded sync frequency
* @extack: error reporting
*
* Dpll subsystem callback. Handler for setting embedded sync frequency value
* on output pin.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_output_esync_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u64 freq, struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
u8 flags = 0;
int ret;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
if (p->flags[0] & ICE_AQC_GET_CGU_OUT_CFG_OUT_EN)
flags = ICE_AQC_SET_CGU_OUT_CFG_OUT_EN;
if (freq == DPLL_PIN_FREQUENCY_1_HZ) {
if (p->flags[0] & ICE_AQC_GET_CGU_OUT_CFG_ESYNC_EN) {
ret = 0;
} else {
flags |= ICE_AQC_SET_CGU_OUT_CFG_ESYNC_EN;
ret = ice_aq_set_output_pin_cfg(&pf->hw, p->idx, flags,
0, 0, 0);
}
} else {
if (!(p->flags[0] & ICE_AQC_GET_CGU_OUT_CFG_ESYNC_EN)) {
ret = 0;
} else {
flags &= ~ICE_AQC_SET_CGU_OUT_CFG_ESYNC_EN;
ret = ice_aq_set_output_pin_cfg(&pf->hw, p->idx, flags,
0, 0, 0);
}
}
mutex_unlock(&pf->dplls.lock);
return ret;
}
/**
* ice_dpll_output_esync_get - callback for getting embedded sync config
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @esync: on success holds embedded sync pin properties
* @extack: error reporting
*
* Dpll subsystem callback. Handler for getting embedded sync frequency value
* and capabilities on output pin.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_output_esync_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
struct dpll_pin_esync *esync,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
if (!(p->flags[0] & ICE_AQC_GET_CGU_OUT_CFG_ESYNC_ABILITY) ||
p->freq != DPLL_PIN_FREQUENCY_10_MHZ) {
mutex_unlock(&pf->dplls.lock);
return -EOPNOTSUPP;
}
esync->range = ice_esync_range;
esync->range_num = ARRAY_SIZE(ice_esync_range);
if (p->flags[0] & ICE_AQC_GET_CGU_OUT_CFG_ESYNC_EN) {
esync->freq = DPLL_PIN_FREQUENCY_1_HZ;
esync->pulse = ICE_DPLL_PIN_ESYNC_PULSE_HIGH_PERCENT;
} else {
esync->freq = 0;
esync->pulse = 0;
}
mutex_unlock(&pf->dplls.lock);
return 0;
}
/**
* ice_dpll_input_esync_set - callback for setting embedded sync
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @freq: requested embedded sync frequency
* @extack: error reporting
*
* Dpll subsystem callback. Handler for setting embedded sync frequency value
* on input pin.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_input_esync_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u64 freq, struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
u8 flags_en = 0;
int ret;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
if (p->flags[0] & ICE_AQC_GET_CGU_IN_CFG_FLG2_INPUT_EN)
flags_en = ICE_AQC_SET_CGU_IN_CFG_FLG2_INPUT_EN;
if (freq == DPLL_PIN_FREQUENCY_1_HZ) {
if (p->flags[0] & ICE_AQC_GET_CGU_IN_CFG_FLG2_ESYNC_EN) {
ret = 0;
} else {
flags_en |= ICE_AQC_SET_CGU_IN_CFG_FLG2_ESYNC_EN;
ret = ice_aq_set_input_pin_cfg(&pf->hw, p->idx, 0,
flags_en, 0, 0);
}
} else {
if (!(p->flags[0] & ICE_AQC_GET_CGU_IN_CFG_FLG2_ESYNC_EN)) {
ret = 0;
} else {
flags_en &= ~ICE_AQC_SET_CGU_IN_CFG_FLG2_ESYNC_EN;
ret = ice_aq_set_input_pin_cfg(&pf->hw, p->idx, 0,
flags_en, 0, 0);
}
}
mutex_unlock(&pf->dplls.lock);
return ret;
}
/**
* ice_dpll_input_esync_get - callback for getting embedded sync config
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @esync: on success holds embedded sync pin properties
* @extack: error reporting
*
* Dpll subsystem callback. Handler for getting embedded sync frequency value
* and capabilities on input pin.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_input_esync_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
struct dpll_pin_esync *esync,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_dpll *d = dpll_priv;
struct ice_pf *pf = d->pf;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
if (!(p->status & ICE_AQC_GET_CGU_IN_CFG_STATUS_ESYNC_CAP) ||
p->freq != DPLL_PIN_FREQUENCY_10_MHZ) {
mutex_unlock(&pf->dplls.lock);
return -EOPNOTSUPP;
}
esync->range = ice_esync_range;
esync->range_num = ARRAY_SIZE(ice_esync_range);
if (p->flags[0] & ICE_AQC_GET_CGU_IN_CFG_FLG2_ESYNC_EN) {
esync->freq = DPLL_PIN_FREQUENCY_1_HZ;
esync->pulse = ICE_DPLL_PIN_ESYNC_PULSE_HIGH_PERCENT;
} else {
esync->freq = 0;
esync->pulse = 0;
}
mutex_unlock(&pf->dplls.lock);
return 0;
}
/**
* ice_dpll_sw_esync_set - callback for setting embedded sync on SW pin
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @freq: requested embedded sync frequency
* @extack: error reporting
*
* Dpll subsystem callback. Handler for setting embedded sync frequency value
* on SW pin.
*
* Context: Calls a function which acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_sw_esync_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u64 freq, struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
if (!p->active) {
NL_SET_ERR_MSG(extack, "pin is not active");
return -EINVAL;
}
if (p->direction == DPLL_PIN_DIRECTION_INPUT)
return ice_dpll_input_esync_set(p->input->pin, p->input, dpll,
dpll_priv, freq, extack);
else
return ice_dpll_output_esync_set(p->output->pin, p->output,
dpll, dpll_priv, freq, extack);
}
/**
* ice_dpll_sw_esync_get - callback for getting embedded sync on SW pin
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @esync: on success holds embedded sync frequency and properties
* @extack: error reporting
*
* Dpll subsystem callback. Handler for getting embedded sync frequency value
* of SW pin.
*
* Context: Calls a function which acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_sw_esync_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
struct dpll_pin_esync *esync,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
if (p->direction == DPLL_PIN_DIRECTION_INPUT)
return ice_dpll_input_esync_get(p->input->pin, p->input, dpll,
dpll_priv, esync, extack);
else
return ice_dpll_output_esync_get(p->output->pin, p->output,
dpll, dpll_priv, esync,
extack);
}
/*
* ice_dpll_input_ref_sync_set - callback for setting reference sync feature
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @ref_pin: pin pointer for reference sync pair
* @ref_pin_priv: private data pointer of ref_pin
* @state: requested state for reference sync for pin pair
* @extack: error reporting
*
* Dpll subsystem callback. Handler for setting reference sync frequency
* feature for input pin.
*
* Context: Acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_input_ref_sync_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_pin *ref_pin, void *ref_pin_priv,
const enum dpll_pin_state state,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_pf *pf = p->pf;
u8 flags_en = 0;
int ret;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
if (p->flags[0] & ICE_AQC_GET_CGU_IN_CFG_FLG2_INPUT_EN)
flags_en = ICE_AQC_SET_CGU_IN_CFG_FLG2_INPUT_EN;
if (state == DPLL_PIN_STATE_CONNECTED)
flags_en |= ICE_AQC_CGU_IN_CFG_FLG2_REFSYNC_EN;
ret = ice_aq_set_input_pin_cfg(&pf->hw, p->idx, 0, flags_en, 0, 0);
if (!ret)
ret = ice_dpll_pin_state_update(pf, p, ICE_DPLL_PIN_TYPE_INPUT,
extack);
mutex_unlock(&pf->dplls.lock);
return ret;
}
/**
* ice_dpll_input_ref_sync_get - callback for getting reference sync config
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @ref_pin: pin pointer for reference sync pair
* @ref_pin_priv: private data pointer of ref_pin
* @state: on success holds reference sync state for pin pair
* @extack: error reporting
*
* Dpll subsystem callback. Handler for setting reference sync frequency
* feature for input pin.
*
* Context: Acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_input_ref_sync_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_pin *ref_pin, void *ref_pin_priv,
enum dpll_pin_state *state,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_pf *pf = p->pf;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
if (p->flags[0] & ICE_AQC_CGU_IN_CFG_FLG2_REFSYNC_EN)
*state = DPLL_PIN_STATE_CONNECTED;
else
*state = DPLL_PIN_STATE_DISCONNECTED;
mutex_unlock(&pf->dplls.lock);
return 0;
}
/*
* ice_dpll_sw_input_ref_sync_set - callback for setting reference sync feature
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @ref_pin: pin pointer for reference sync pair
* @ref_pin_priv: private data pointer of ref_pin
* @state: requested state for reference sync for pin pair
* @extack: error reporting
*
* Dpll subsystem callback. Handler for setting reference sync
* feature for input pins.
*
* Context: Calls a function which acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_sw_input_ref_sync_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_pin *ref_pin,
void *ref_pin_priv,
const enum dpll_pin_state state,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
return ice_dpll_input_ref_sync_set(pin, p->input, ref_pin, ref_pin_priv,
state, extack);
}
/**
* ice_dpll_sw_input_ref_sync_get - callback for getting reference sync config
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @ref_pin: pin pointer for reference sync pair
* @ref_pin_priv: private data pointer of ref_pin
* @state: on success holds reference sync state for pin pair
* @extack: error reporting
*
* Dpll subsystem callback. Handler for setting reference sync feature for
* input pins.
*
* Context: Calls a function which acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - error
*/
static int
ice_dpll_sw_input_ref_sync_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_pin *ref_pin,
void *ref_pin_priv,
enum dpll_pin_state *state,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
return ice_dpll_input_ref_sync_get(pin, p->input, ref_pin, ref_pin_priv,
state, extack);
}
static int
ice_dpll_pin_get_parent_num(struct ice_dpll_pin *pin,
const struct dpll_pin *parent)
{
int i;
for (i = 0; i < pin->num_parents; i++)
if (pin->pf->dplls.inputs[pin->parent_idx[i]].pin == parent)
return i;
return -ENOENT;
}
static int
ice_dpll_pin_get_parent_idx(struct ice_dpll_pin *pin,
const struct dpll_pin *parent)
{
int num = ice_dpll_pin_get_parent_num(pin, parent);
return num < 0 ? num : pin->parent_idx[num];
}
/**
* ice_dpll_rclk_state_on_pin_set - set a state on rclk pin
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @parent_pin: pin parent pointer
* @parent_pin_priv: parent private data pointer passed on pin registration
* @state: state to be set on pin
* @extack: error reporting
*
* Dpll subsystem callback, set a state of a rclk pin on a parent pin
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - failure
*/
static int
ice_dpll_rclk_state_on_pin_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_pin *parent_pin,
void *parent_pin_priv,
enum dpll_pin_state state,
struct netlink_ext_ack *extack)
{
bool enable = state == DPLL_PIN_STATE_CONNECTED;
struct ice_dpll_pin *p = pin_priv;
struct ice_pf *pf = p->pf;
struct ice_hw *hw;
int ret = -EINVAL;
int hw_idx;
hw = &pf->hw;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
hw_idx = ice_dpll_pin_get_parent_idx(p, parent_pin);
if (hw_idx < 0)
goto unlock;
hw_idx -= pf->dplls.base_rclk_idx;
if (hw_idx >= ICE_DPLL_RCLK_NUM_MAX)
goto unlock;
if ((enable && p->state[hw_idx] == DPLL_PIN_STATE_CONNECTED) ||
(!enable && p->state[hw_idx] == DPLL_PIN_STATE_DISCONNECTED)) {
NL_SET_ERR_MSG_FMT(extack,
"pin:%u state:%u on parent:%u already set",
p->idx, state,
ice_dpll_pin_get_parent_num(p, parent_pin));
goto unlock;
}
ret = hw->mac_type == ICE_MAC_GENERIC_3K_E825 ?
ice_dpll_synce_update_e825c(hw, enable,
pf->ptp.port.port_num,
(enum ice_synce_clk)hw_idx) :
ice_aq_set_phy_rec_clk_out(hw, hw_idx, enable, &p->freq);
if (ret)
NL_SET_ERR_MSG_FMT(extack,
"err:%d %s failed to set pin state:%u for pin:%u on parent:%u",
ret,
libie_aq_str(hw->adminq.sq_last_status),
state, p->idx,
ice_dpll_pin_get_parent_num(p, parent_pin));
unlock:
mutex_unlock(&pf->dplls.lock);
return ret;
}
/**
* ice_dpll_rclk_state_on_pin_get - get a state of rclk pin
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @parent_pin: pin parent pointer
* @parent_pin_priv: pin parent priv data pointer passed on pin registration
* @state: on success holds pin state on parent pin
* @extack: error reporting
*
* dpll subsystem callback, get a state of a recovered clock pin.
*
* Context: Acquires pf->dplls.lock
* Return:
* * 0 - success
* * negative - failure
*/
static int
ice_dpll_rclk_state_on_pin_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_pin *parent_pin,
void *parent_pin_priv,
enum dpll_pin_state *state,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_pf *pf = p->pf;
int ret = -EINVAL;
int hw_idx;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
hw_idx = ice_dpll_pin_get_parent_idx(p, parent_pin);
if (hw_idx < 0)
goto unlock;
hw_idx -= pf->dplls.base_rclk_idx;
if (hw_idx >= ICE_DPLL_RCLK_NUM_MAX)
goto unlock;
ret = ice_dpll_pin_state_update(pf, p, ICE_DPLL_PIN_TYPE_RCLK_INPUT,
extack);
if (ret)
goto unlock;
*state = p->state[hw_idx];
ret = 0;
unlock:
mutex_unlock(&pf->dplls.lock);
return ret;
}
/**
* ice_dpll_txclk_work - apply a pending TX reference clock change
* @work: work_struct embedded in struct ice_dplls
*
* This worker executes an outstanding TX reference clock switch request
* that was previously queued via the DPLL TXCLK pin set callback.
*
* The worker performs only the operational part of the switch, issuing
* the necessary firmware commands to request a new TX reference clock
* selection (e.g. triggering an AN restart). It does not verify whether
* the requested clock was ultimately accepted by the hardware.
*
* Hardware verification, software state reconciliation, pin state
* notification, and TXC DPLL lock-status updates are performed later,
* after link-up, by ice_txclk_update_and_notify().
*
* Context:
* - Runs in process context on pf->dplls.wq and may sleep.
* - Serializes access to shared TXCLK state using pf->dplls.lock.
*/
static void ice_dpll_txclk_work(struct work_struct *work)
{
struct ice_dplls *dplls =
container_of(work, struct ice_dplls, txclk_work);
struct ice_pf *pf = container_of(dplls, struct ice_pf, dplls);
struct dpll_pin *old_pin = NULL;
struct dpll_pin *new_pin = NULL;
enum ice_e825c_ref_clk clk;
bool do_switch;
int err;
mutex_lock(&pf->dplls.lock);
do_switch = pf->dplls.txclk_switch_requested;
clk = pf->ptp.port.tx_clk_req;
mutex_unlock(&pf->dplls.lock);
if (!do_switch)
return;
err = ice_txclk_set_clk(pf, clk);
mutex_lock(&pf->dplls.lock);
/* Only clear the request flag if no newer request arrived while
* the lock was dropped. Otherwise leave it set so the re-queued
* worker run picks up the updated tx_clk_req value.
*/
if (pf->ptp.port.tx_clk_req == clk)
pf->dplls.txclk_switch_requested = false;
if (err) {
/* Roll back the requested clock to match the current hardware
* state so that ice_txclk_update_and_notify() does not
* misinterpret a future link-up as a failed switch. Only roll
* back if no newer request arrived in the meantime; otherwise
* the re-queued worker run will apply the updated value.
*/
dev_err(ice_pf_to_dev(pf),
"TX clock switch to %u failed, err=%d; reverting\n",
clk, err);
if (pf->ptp.port.tx_clk_req == clk) {
/* Capture pins for post-unlock notification so that
* userspace observes the requested pin flipping back
* to DISCONNECTED and the effective pin to CONNECTED.
*/
new_pin = ice_txclk_get_pin(pf, clk);
old_pin = ice_txclk_get_pin(pf, pf->ptp.port.tx_clk);
pf->ptp.port.tx_clk_req = pf->ptp.port.tx_clk;
}
}
mutex_unlock(&pf->dplls.lock);
if (old_pin)
dpll_pin_change_ntf(old_pin);
if (new_pin)
dpll_pin_change_ntf(new_pin);
}
/**
* ice_dpll_txclk_state_on_dpll_set - set a state on TX clk pin
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @state: state to be set on pin
* @extack: error reporting
*
* Dpll subsystem callback, set a state of a Tx reference clock pin
*
* Context: Acquires and releases pf->dplls.lock.
* Return:
* * 0 - success
* * negative - failure
*/
static int
ice_dpll_txclk_state_on_dpll_set(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll,
void *dpll_priv, enum dpll_pin_state state,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_pf *pf = p->pf;
enum ice_e825c_ref_clk new_clk;
int ret = 0;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
if (state != DPLL_PIN_STATE_CONNECTED &&
state != DPLL_PIN_STATE_DISCONNECTED) {
NL_SET_ERR_MSG(extack,
"unsupported pin state for TX reference clock");
return -EINVAL;
}
/* Check ICE_FLAG_DPLL and queue_work() under pf->dplls.lock.
* ice_dpll_deinit() clears the flag under the same lock before
* cancel_work_sync() and wq destruction, so a callback arriving
* after teardown observes the cleared flag and bails out.
*/
mutex_lock(&pf->dplls.lock);
if (!test_bit(ICE_FLAG_DPLL, pf->flags)) {
ret = -ENODEV;
goto unlock;
}
if (state == DPLL_PIN_STATE_DISCONNECTED &&
p->tx_ref_src != pf->ptp.port.tx_clk_req)
goto unlock;
new_clk = (state == DPLL_PIN_STATE_DISCONNECTED) ? ICE_REF_CLK_ENET :
p->tx_ref_src;
if (new_clk == pf->ptp.port.tx_clk_req)
goto unlock;
pf->ptp.port.tx_clk_req = new_clk;
pf->dplls.txclk_switch_requested = true;
queue_work(pf->dplls.wq, &pf->dplls.txclk_work);
unlock:
mutex_unlock(&pf->dplls.lock);
return ret;
}
/**
* ice_dpll_txclk_state_on_dpll_get - get a state of Tx clk reference pin
* @pin: pointer to a pin
* @pin_priv: private data pointer passed on pin registration
* @dpll: registered dpll pointer
* @dpll_priv: private data pointer passed on dpll registration
* @state: on success holds pin state on parent pin
* @extack: error reporting
*
* TXCLK DPLL pin state is derived and not stored explicitly.
*
* Only external TX reference clocks (SYNCE, EREF0) are modeled
* as DPLL pins. The internal ENET (TXCO) clock has no pin and,
* when selected, all TXCLK pins are reported DISCONNECTED.
*
* During a pending TXCLK switch, the requested pin may be
* reported as CONNECTED before hardware verification.
* Hardware acceptance and synchronization are reported
* exclusively via TXC DPLL lock-status.
*
* Context: Acquires and releases pf->dplls.lock
* Return:
* * 0 - success
* * negative - failure
*/
static int
ice_dpll_txclk_state_on_dpll_get(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll,
void *dpll_priv,
enum dpll_pin_state *state,
struct netlink_ext_ack *extack)
{
struct ice_dpll_pin *p = pin_priv;
struct ice_pf *pf = p->pf;
if (ice_dpll_is_reset(pf, extack))
return -EBUSY;
mutex_lock(&pf->dplls.lock);
if (pf->ptp.port.tx_clk_req == p->tx_ref_src)
*state = DPLL_PIN_STATE_CONNECTED;
else
*state = DPLL_PIN_STATE_DISCONNECTED;
mutex_unlock(&pf->dplls.lock);
return 0;
}
static const struct dpll_pin_ops ice_dpll_rclk_ops = {
.state_on_pin_set = ice_dpll_rclk_state_on_pin_set,
.state_on_pin_get = ice_dpll_rclk_state_on_pin_get,
.direction_get = ice_dpll_input_direction,
};
static const struct dpll_pin_ops ice_dpll_txclk_ops = {
.state_on_dpll_set = ice_dpll_txclk_state_on_dpll_set,
.state_on_dpll_get = ice_dpll_txclk_state_on_dpll_get,
.direction_get = ice_dpll_input_direction,
};
static const struct dpll_pin_ops ice_dpll_pin_sma_ops = {
.state_on_dpll_set = ice_dpll_sma_pin_state_set,
.state_on_dpll_get = ice_dpll_sw_pin_state_get,
.direction_get = ice_dpll_pin_sw_direction_get,
.direction_set = ice_dpll_pin_sma_direction_set,
.prio_get = ice_dpll_sw_input_prio_get,
.prio_set = ice_dpll_sw_input_prio_set,
.frequency_get = ice_dpll_sw_pin_frequency_get,
.frequency_set = ice_dpll_sw_pin_frequency_set,
.phase_adjust_get = ice_dpll_sw_phase_adjust_get,
.phase_adjust_set = ice_dpll_sw_phase_adjust_set,
.phase_offset_get = ice_dpll_phase_offset_get,
.esync_set = ice_dpll_sw_esync_set,
.esync_get = ice_dpll_sw_esync_get,
.ref_sync_set = ice_dpll_sw_input_ref_sync_set,
.ref_sync_get = ice_dpll_sw_input_ref_sync_get,
};
static const struct dpll_pin_ops ice_dpll_pin_ufl_ops = {
.state_on_dpll_set = ice_dpll_ufl_pin_state_set,
.state_on_dpll_get = ice_dpll_sw_pin_state_get,
.direction_get = ice_dpll_pin_sw_direction_get,
.prio_get = ice_dpll_sw_input_prio_get,
.prio_set = ice_dpll_sw_input_prio_set,
.frequency_get = ice_dpll_sw_pin_frequency_get,
.frequency_set = ice_dpll_sw_pin_frequency_set,
.esync_set = ice_dpll_sw_esync_set,
.esync_get = ice_dpll_sw_esync_get,
.phase_adjust_get = ice_dpll_sw_phase_adjust_get,
.phase_adjust_set = ice_dpll_sw_phase_adjust_set,
.phase_offset_get = ice_dpll_phase_offset_get,
};
static const struct dpll_pin_ops ice_dpll_input_ops = {
.frequency_get = ice_dpll_input_frequency_get,
.frequency_set = ice_dpll_input_frequency_set,
.state_on_dpll_get = ice_dpll_input_state_get,
.state_on_dpll_set = ice_dpll_input_state_set,
.prio_get = ice_dpll_input_prio_get,
.prio_set = ice_dpll_input_prio_set,
.direction_get = ice_dpll_input_direction,
.phase_adjust_get = ice_dpll_pin_phase_adjust_get,
.phase_adjust_set = ice_dpll_input_phase_adjust_set,
.phase_offset_get = ice_dpll_phase_offset_get,
.esync_set = ice_dpll_input_esync_set,
.esync_get = ice_dpll_input_esync_get,
.ref_sync_set = ice_dpll_input_ref_sync_set,
.ref_sync_get = ice_dpll_input_ref_sync_get,
};
static const struct dpll_pin_ops ice_dpll_output_ops = {
.frequency_get = ice_dpll_output_frequency_get,
.frequency_set = ice_dpll_output_frequency_set,
.state_on_dpll_get = ice_dpll_output_state_get,
.state_on_dpll_set = ice_dpll_output_state_set,
.direction_get = ice_dpll_output_direction,
.phase_adjust_get = ice_dpll_pin_phase_adjust_get,
.phase_adjust_set = ice_dpll_output_phase_adjust_set,
.esync_set = ice_dpll_output_esync_set,
.esync_get = ice_dpll_output_esync_get,
};
static const struct dpll_device_ops ice_dpll_ops = {
.lock_status_get = ice_dpll_lock_status_get,
.mode_get = ice_dpll_mode_get,
};
static const struct dpll_device_ops ice_dpll_pom_ops = {
.lock_status_get = ice_dpll_lock_status_get,
.mode_get = ice_dpll_mode_get,
.phase_offset_monitor_set = ice_dpll_phase_offset_monitor_set,
.phase_offset_monitor_get = ice_dpll_phase_offset_monitor_get,
};
/**
* ice_generate_clock_id - generates unique clock_id for registering dpll.
* @pf: board private structure
*
* Generates unique (per board) clock_id for allocation and search of dpll
* devices in Linux dpll subsystem.
*
* Return: generated clock id for the board
*/
static u64 ice_generate_clock_id(struct ice_pf *pf)
{
return pci_get_dsn(pf->pdev);
}
/**
* ice_dpll_pin_ntf - notify pin change including any SW pin wrappers
* @dplls: pointer to dplls struct
* @pin: the dpll_pin that changed
*
* Send a change notification for @pin and for any registered SMA/U.FL pin
* whose backing CGU input matches @pin.
*/
static void ice_dpll_pin_ntf(struct ice_dplls *dplls, struct dpll_pin *pin)
{
dpll_pin_change_ntf(pin);
for (int i = 0; i < ICE_DPLL_PIN_SW_NUM; i++) {
if (dplls->sma[i].pin && dplls->sma[i].input &&
dplls->sma[i].input->pin == pin)
dpll_pin_change_ntf(dplls->sma[i].pin);
if (dplls->ufl[i].pin && dplls->ufl[i].input &&
dplls->ufl[i].input->pin == pin)
dpll_pin_change_ntf(dplls->ufl[i].pin);
}
}
/**
* ice_dpll_notify_changes - notify dpll subsystem about changes
* @d: pointer do dpll
*
* Once change detected appropriate event is submitted to the dpll subsystem.
*/
static void ice_dpll_notify_changes(struct ice_dpll *d)
{
struct ice_dplls *dplls = &d->pf->dplls;
bool pin_notified = false;
if (d->prev_dpll_state != d->dpll_state) {
d->prev_dpll_state = d->dpll_state;
dpll_device_change_ntf(d->dpll);
}
if (d->prev_input != d->active_input) {
if (d->prev_input)
ice_dpll_pin_ntf(dplls, d->prev_input);
d->prev_input = d->active_input;
if (d->active_input) {
ice_dpll_pin_ntf(dplls, d->active_input);
pin_notified = true;
}
}
if (d->prev_phase_offset != d->phase_offset) {
d->prev_phase_offset = d->phase_offset;
if (!pin_notified && d->active_input)
ice_dpll_pin_ntf(dplls, d->active_input);
}
}
/**
* ice_dpll_is_pps_phase_monitor - check if dpll capable of phase offset monitor
* @pf: pf private structure
*
* Check if firmware is capable of supporting admin command to provide
* phase offset monitoring on all the input pins on PPS dpll.
*
* Returns:
* * true - PPS dpll phase offset monitoring is supported
* * false - PPS dpll phase offset monitoring is not supported
*/
static bool ice_dpll_is_pps_phase_monitor(struct ice_pf *pf)
{
struct ice_cgu_input_measure meas[ICE_DPLL_INPUT_REF_NUM];
int ret = ice_aq_get_cgu_input_pin_measure(&pf->hw, DPLL_TYPE_PPS, meas,
ARRAY_SIZE(meas));
if (ret && pf->hw.adminq.sq_last_status == LIBIE_AQ_RC_ESRCH)
return false;
return true;
}
/**
* ice_dpll_pins_notify_mask - notify dpll subsystem about bulk pin changes
* @dplls: pointer to dplls struct
* @pins: array of ice_dpll_pin pointers registered within dpll subsystem
* @pin_num: number of pins
* @phase_offset_ntf_mask: bitmask of pin indexes to notify
*
* Iterate over array of pins and call dpll subsystem pin notify if
* corresponding pin index within bitmask is set.
*
* Context: Must be called while pf->dplls.lock is released.
*/
static void ice_dpll_pins_notify_mask(struct ice_dplls *dplls,
struct ice_dpll_pin *pins,
u8 pin_num,
u32 phase_offset_ntf_mask)
{
for (int i = 0; i < pin_num; i++)
if (phase_offset_ntf_mask & BIT(i))
ice_dpll_pin_ntf(dplls, pins[i].pin);
}
/**
* ice_dpll_pps_update_phase_offsets - update phase offset measurements
* @pf: pf private structure
* @phase_offset_pins_updated: returns mask of updated input pin indexes
*
* Read phase offset measurements for PPS dpll device and store values in
* input pins array. On success phase_offset_pins_updated - fills bitmask of
* updated input pin indexes, pins shall be notified.
*
* Context: Shall be called with pf->dplls.lock being locked.
* Returns:
* * 0 - success or no data available
* * negative - AQ failure
*/
static int ice_dpll_pps_update_phase_offsets(struct ice_pf *pf,
u32 *phase_offset_pins_updated)
{
struct ice_cgu_input_measure meas[ICE_DPLL_INPUT_REF_NUM];
struct ice_dpll_pin *p;
s64 phase_offset, tmp;
int i, j, ret;
*phase_offset_pins_updated = 0;
ret = ice_aq_get_cgu_input_pin_measure(&pf->hw, DPLL_TYPE_PPS, meas,
ARRAY_SIZE(meas));
if (ret && (pf->hw.adminq.sq_last_status == LIBIE_AQ_RC_EAGAIN ||
pf->hw.adminq.sq_last_status == LIBIE_AQ_RC_EBUSY)) {
return 0;
} else if (ret) {
dev_err(ice_pf_to_dev(pf),
"failed to get input pin measurements dpll=%d, ret=%d %s\n",
DPLL_TYPE_PPS, ret,
libie_aq_str(pf->hw.adminq.sq_last_status));
return ret;
}
for (i = 0; i < pf->dplls.num_inputs; i++) {
p = &pf->dplls.inputs[i];
phase_offset = 0;
for (j = 0; j < ICE_CGU_INPUT_PHASE_OFFSET_BYTES; j++) {
tmp = meas[i].phase_offset[j];
#ifdef __LITTLE_ENDIAN
phase_offset += tmp << 8 * j;
#else
phase_offset += tmp << 8 *
(ICE_CGU_INPUT_PHASE_OFFSET_BYTES - 1 - j);
#endif
}
phase_offset = sign_extend64(phase_offset, 47);
if (p->phase_offset != phase_offset) {
dev_dbg(ice_pf_to_dev(pf),
"phase offset changed for pin:%d old:%llx, new:%llx\n",
p->idx, p->phase_offset, phase_offset);
p->phase_offset = phase_offset;
*phase_offset_pins_updated |= (1 << i);
}
}
return 0;
}
/**
* ice_dpll_update_state - update dpll state
* @pf: pf private structure
* @d: pointer to queried dpll device
* @init: if function called on initialization of ice dpll
*
* Poll current state of dpll from hw and update ice_dpll struct.
*
* Context: Called by kworker under pf->dplls.lock
* Return:
* * 0 - success
* * negative - AQ failure
*/
static int
ice_dpll_update_state(struct ice_pf *pf, struct ice_dpll *d, bool init)
{
struct ice_dpll_pin *p = NULL;
int ret;
ret = ice_get_cgu_state(&pf->hw, d->dpll_idx, d->prev_dpll_state,
&d->input_idx, &d->ref_state, &d->eec_mode,
&d->phase_offset, &d->dpll_state);
dev_dbg(ice_pf_to_dev(pf),
"update dpll=%d, prev_src_idx:%u, src_idx:%u, state:%d, prev:%d mode:%d\n",
d->dpll_idx, d->prev_input_idx, d->input_idx,
d->dpll_state, d->prev_dpll_state, d->mode);
if (ret) {
/* EBUSY is expected during reset recovery, don't log error */
if (pf->hw.adminq.sq_last_status != LIBIE_AQ_RC_EBUSY)
dev_err(ice_pf_to_dev(pf),
"update dpll=%d state failed, ret=%d %s\n",
d->dpll_idx, ret,
libie_aq_str(pf->hw.adminq.sq_last_status));
return ret;
}
if (init) {
if (d->dpll_state == DPLL_LOCK_STATUS_LOCKED ||
d->dpll_state == DPLL_LOCK_STATUS_LOCKED_HO_ACQ)
d->active_input = pf->dplls.inputs[d->input_idx].pin;
p = &pf->dplls.inputs[d->input_idx];
return ice_dpll_pin_state_update(pf, p,
ICE_DPLL_PIN_TYPE_INPUT, NULL);
}
if (d->dpll_state == DPLL_LOCK_STATUS_HOLDOVER ||
d->dpll_state == DPLL_LOCK_STATUS_UNLOCKED) {
d->active_input = NULL;
if (d->input_idx != ICE_DPLL_PIN_IDX_INVALID)
p = &pf->dplls.inputs[d->input_idx];
d->prev_input_idx = ICE_DPLL_PIN_IDX_INVALID;
d->input_idx = ICE_DPLL_PIN_IDX_INVALID;
if (!p)
return 0;
ret = ice_dpll_pin_state_update(pf, p,
ICE_DPLL_PIN_TYPE_INPUT, NULL);
} else if (d->input_idx != d->prev_input_idx) {
if (d->prev_input_idx != ICE_DPLL_PIN_IDX_INVALID) {
p = &pf->dplls.inputs[d->prev_input_idx];
ice_dpll_pin_state_update(pf, p,
ICE_DPLL_PIN_TYPE_INPUT,
NULL);
}
if (d->input_idx != ICE_DPLL_PIN_IDX_INVALID) {
p = &pf->dplls.inputs[d->input_idx];
d->active_input = p->pin;
ice_dpll_pin_state_update(pf, p,
ICE_DPLL_PIN_TYPE_INPUT,
NULL);
}
d->prev_input_idx = d->input_idx;
}
return ret;
}
/**
* ice_dpll_periodic_work - DPLLs periodic worker
* @work: pointer to kthread_work structure
*
* DPLLs periodic worker is responsible for polling state of dpll.
* Context: Holds pf->dplls.lock
*/
static void ice_dpll_periodic_work(struct kthread_work *work)
{
struct ice_dplls *d = container_of(work, struct ice_dplls, work.work);
struct ice_pf *pf = container_of(d, struct ice_pf, dplls);
struct ice_dpll *de = &pf->dplls.eec;
struct ice_dpll *dp = &pf->dplls.pps;
u32 phase_offset_ntf = 0;
int ret = 0;
if (ice_is_reset_in_progress(pf->state))
goto resched;
mutex_lock(&pf->dplls.lock);
d->periodic_counter++;
ret = ice_dpll_update_state(pf, de, false);
if (!ret)
ret = ice_dpll_update_state(pf, dp, false);
if (!ret && dp->phase_offset_monitor_period &&
d->periodic_counter % dp->phase_offset_monitor_period == 0)
ret = ice_dpll_pps_update_phase_offsets(pf, &phase_offset_ntf);
if (ret) {
/* EBUSY is expected during reset recovery */
if (pf->hw.adminq.sq_last_status != LIBIE_AQ_RC_EBUSY)
d->cgu_state_acq_err_num++;
/* stop rescheduling this worker */
if (d->cgu_state_acq_err_num >
ICE_CGU_STATE_ACQ_ERR_THRESHOLD) {
dev_err(ice_pf_to_dev(pf),
"EEC/PPS DPLLs periodic work disabled\n");
mutex_unlock(&pf->dplls.lock);
return;
}
}
mutex_unlock(&pf->dplls.lock);
ice_dpll_notify_changes(de);
ice_dpll_notify_changes(dp);
if (phase_offset_ntf)
ice_dpll_pins_notify_mask(d, d->inputs, d->num_inputs,
phase_offset_ntf);
resched:
/* Run twice a second or reschedule if update failed */
kthread_queue_delayed_work(d->kworker, &d->work,
ret ? msecs_to_jiffies(10) :
msecs_to_jiffies(500));
}
/**
* ice_dpll_init_ref_sync_inputs - initialize reference sync pin pairs
* @pf: pf private structure
*
* Read DPLL TLV capabilities and initialize reference sync pin pairs in
* dpll subsystem.
*
* Return:
* * 0 - success or nothing to do (no ref-sync tlv are present)
* * negative - AQ failure
*/
static int ice_dpll_init_ref_sync_inputs(struct ice_pf *pf)
{
struct ice_dpll_pin *inputs = pf->dplls.inputs;
struct ice_hw *hw = &pf->hw;
u16 addr, len, end, hdr;
int ret;
ret = ice_get_pfa_module_tlv(hw, &hdr, &len, ICE_SR_PFA_DPLL_DEFAULTS);
if (ret) {
dev_err(ice_pf_to_dev(pf),
"Failed to read PFA dpll defaults TLV ret=%d\n", ret);
return ret;
}
end = hdr + len;
for (addr = hdr + ICE_DPLL_PFA_HEADER_LEN; addr < end;
addr += ICE_DPLL_PFA_ENTRY_LEN) {
unsigned long bit, ul_mask, offset;
u16 pin, mask, buf;
bool valid = false;
ret = ice_read_sr_word(hw, addr, &buf);
if (ret)
return ret;
switch (buf) {
case ICE_DPLL_PFA_REF_SYNC_TYPE:
case ICE_DPLL_PFA_REF_SYNC_TYPE2:
{
u16 mask_addr = addr + ICE_DPLL_PFA_MASK_OFFSET;
u16 val_addr = addr + ICE_DPLL_PFA_VALUE_OFFSET;
ret = ice_read_sr_word(hw, mask_addr, &mask);
if (ret)
return ret;
ret = ice_read_sr_word(hw, val_addr, &pin);
if (ret)
return ret;
if (buf == ICE_DPLL_PFA_REF_SYNC_TYPE)
pin >>= ICE_DPLL_PFA_MAILBOX_REF_SYNC_PIN_S;
valid = true;
break;
}
case ICE_DPLL_PFA_END:
addr = end;
break;
default:
continue;
}
if (!valid)
continue;
ul_mask = mask;
offset = 0;
for_each_set_bit(bit, &ul_mask, BITS_PER_TYPE(u16)) {
int i, j;
if (hw->device_id == ICE_DEV_ID_E810C_SFP &&
pin > ICE_DPLL_E810C_SFP_NC_START)
offset = -ICE_DPLL_E810C_SFP_NC_PINS;
i = pin + offset;
j = bit + offset;
if (i < 0 || j < 0)
return -ERANGE;
inputs[i].ref_sync = j;
}
}
return 0;
}
/**
* ice_dpll_release_pins - release pins resources from dpll subsystem
* @pins: pointer to pins array
* @count: number of pins
*
* Release resources of given pins array in the dpll subsystem.
*/
static void ice_dpll_release_pins(struct ice_dpll_pin *pins, int count)
{
int i;
for (i = 0; i < count; i++)
if (!IS_ERR_OR_NULL(pins[i].pin))
dpll_pin_put(pins[i].pin, &pins[i].tracker);
}
/**
* ice_dpll_get_pins - get pins from dpll subsystem
* @pf: board private structure
* @pins: pointer to pins array
* @start_idx: get starts from this pin idx value
* @count: number of pins
* @clock_id: clock_id of dpll device
*
* Get pins - allocate - in dpll subsystem, store them in pin field of given
* pins array.
*
* Return:
* * 0 - success
* * negative - allocation failure reason
*/
static int
ice_dpll_get_pins(struct ice_pf *pf, struct ice_dpll_pin *pins,
int start_idx, int count, u64 clock_id)
{
u32 pin_index;
int i, ret;
for (i = 0; i < count; i++) {
pin_index = start_idx;
if (start_idx != DPLL_PIN_IDX_UNSPEC)
pin_index += i;
pins[i].pin = dpll_pin_get(clock_id, pin_index, THIS_MODULE,
&pins[i].prop, &pins[i].tracker);
if (IS_ERR(pins[i].pin)) {
ret = PTR_ERR(pins[i].pin);
goto release_pins;
}
}
return 0;
release_pins:
while (--i >= 0)
dpll_pin_put(pins[i].pin, &pins[i].tracker);
return ret;
}
/**
* ice_dpll_unregister_pins - unregister pins from a dpll
* @dpll: dpll device pointer
* @pins: pointer to pins array
* @ops: callback ops registered with the pins
* @count: number of pins
*
* Unregister pins of a given array of pins from given dpll device registered in
* dpll subsystem.
*/
static void
ice_dpll_unregister_pins(struct dpll_device *dpll, struct ice_dpll_pin *pins,
const struct dpll_pin_ops *ops, int count)
{
int i;
for (i = 0; i < count; i++) {
if (pins[i].hidden)
continue;
if (IS_ERR_OR_NULL(pins[i].pin))
continue;
dpll_pin_unregister(dpll, pins[i].pin, ops, &pins[i]);
}
}
/**
* ice_dpll_pin_ref_sync_register - register reference sync pins
* @pins: pointer to pins array
* @count: number of pins
*
* Register reference sync pins in dpll subsystem.
*
* Return:
* * 0 - success
* * negative - registration failure reason
*/
static int
ice_dpll_pin_ref_sync_register(struct ice_dpll_pin *pins, int count)
{
int ret, i;
for (i = 0; i < count; i++) {
if (!pins[i].hidden && pins[i].ref_sync) {
int j = pins[i].ref_sync;
ret = dpll_pin_ref_sync_pair_add(pins[i].pin,
pins[j].pin);
if (ret)
return ret;
}
}
return 0;
}
/**
* ice_dpll_register_pins - register pins with a dpll
* @dpll: dpll pointer to register pins with
* @pins: pointer to pins array
* @ops: callback ops registered with the pins
* @count: number of pins
*
* Register pins of a given array with given dpll in dpll subsystem.
*
* Return:
* * 0 - success
* * negative - registration failure reason
*/
static int
ice_dpll_register_pins(struct dpll_device *dpll, struct ice_dpll_pin *pins,
const struct dpll_pin_ops *ops, int count)
{
int ret, i;
for (i = 0; i < count; i++) {
if (!pins[i].hidden) {
ret = dpll_pin_register(dpll, pins[i].pin, ops, &pins[i]);
if (ret)
goto unregister_pins;
}
}
return 0;
unregister_pins:
while (--i >= 0)
if (!pins[i].hidden)
dpll_pin_unregister(dpll, pins[i].pin, ops, &pins[i]);
return ret;
}
/**
* ice_dpll_deinit_direct_pins - deinitialize direct pins
* @pf: board private structure
* @cgu: if cgu is present and controlled by this NIC
* @pins: pointer to pins array
* @count: number of pins
* @ops: callback ops registered with the pins
* @first: dpll device pointer
* @second: dpll device pointer
*
* If cgu is owned unregister pins from given dplls.
* Release pins resources to the dpll subsystem.
*/
static void
ice_dpll_deinit_direct_pins(struct ice_pf *pf, bool cgu,
struct ice_dpll_pin *pins, int count,
const struct dpll_pin_ops *ops,
struct dpll_device *first,
struct dpll_device *second)
{
if (cgu) {
ice_dpll_unregister_pins(first, pins, ops, count);
ice_dpll_unregister_pins(second, pins, ops, count);
}
ice_dpll_release_pins(pins, count);
}
/**
* ice_dpll_init_direct_pins - initialize direct pins
* @pf: board private structure
* @cgu: if cgu is present and controlled by this NIC
* @pins: pointer to pins array
* @start_idx: on which index shall allocation start in dpll subsystem
* @count: number of pins
* @ops: callback ops registered with the pins
* @first: dpll device pointer
* @second: dpll device pointer
*
* Allocate directly connected pins of a given array in dpll subsystem.
* If cgu is owned register allocated pins with given dplls.
*
* Return:
* * 0 - success
* * negative - registration failure reason
*/
static int
ice_dpll_init_direct_pins(struct ice_pf *pf, bool cgu,
struct ice_dpll_pin *pins, int start_idx, int count,
const struct dpll_pin_ops *ops,
struct dpll_device *first, struct dpll_device *second)
{
int ret;
ret = ice_dpll_get_pins(pf, pins, start_idx, count, pf->dplls.clock_id);
if (ret)
return ret;
if (cgu) {
ret = ice_dpll_register_pins(first, pins, ops, count);
if (ret)
goto release_pins;
ret = ice_dpll_register_pins(second, pins, ops, count);
if (ret)
goto unregister_first;
}
return 0;
unregister_first:
ice_dpll_unregister_pins(first, pins, ops, count);
release_pins:
ice_dpll_release_pins(pins, count);
return ret;
}
/**
* ice_dpll_deinit_rclk_pin - release rclk pin resources
* @pf: board private structure
*
* Deregister rclk pin from parent pins and release resources in dpll subsystem.
*/
static void ice_dpll_deinit_rclk_pin(struct ice_pf *pf)
{
struct ice_dpll_pin *rclk = &pf->dplls.rclk;
struct ice_vsi *vsi = ice_get_main_vsi(pf);
struct ice_dpll_pin *parent;
int i;
for (i = 0; i < rclk->num_parents; i++) {
parent = &pf->dplls.inputs[rclk->parent_idx[i]];
if (IS_ERR_OR_NULL(parent->pin))
continue;
dpll_pin_on_pin_unregister(parent->pin, rclk->pin,
&ice_dpll_rclk_ops, rclk);
}
if (WARN_ON_ONCE(!vsi || !vsi->netdev))
return;
dpll_netdev_pin_clear(vsi->netdev);
dpll_pin_put(rclk->pin, &rclk->tracker);
}
static bool ice_dpll_is_fwnode_pin(struct ice_dpll_pin *pin)
{
return !IS_ERR_OR_NULL(pin->fwnode);
}
static bool ice_dpll_fwnode_eq(const struct fwnode_handle *a,
const struct fwnode_handle *b)
{
return a && a == b;
}
static void ice_dpll_pin_notify_work(struct work_struct *work)
{
struct ice_dpll_pin_work *w = container_of(work,
struct ice_dpll_pin_work,
work);
struct ice_dpll_pin *pin, *parent = w->pin;
bool is_tx_synce_parent = false;
struct ice_pf *pf = parent->pf;
bool is_rclk_parent = false;
int ret;
wait_for_completion(&pf->dplls.dpll_init);
if (!test_bit(ICE_FLAG_DPLL, pf->flags))
goto out; /* DPLL initialization failed */
/* Decide which parent we are handling, defensively checking FWNs */
for (int i = 0; i < pf->dplls.rclk.num_parents; i++) {
if (ice_dpll_fwnode_eq(parent->fwnode,
pf->dplls.inputs[i].fwnode)) {
is_rclk_parent = true;
break;
}
}
is_tx_synce_parent =
ice_dpll_fwnode_eq(parent->fwnode,
pf->dplls.txclks[E825_EXT_SYNCE_PIN_IDX].fwnode);
if (!is_rclk_parent && !is_tx_synce_parent)
goto out;
switch (w->action) {
case DPLL_PIN_CREATED:
if (!IS_ERR_OR_NULL(parent->pin)) {
/* We have already our pin registered */
goto out;
}
/* Grab reference on fwnode pin */
parent->pin = fwnode_dpll_pin_find(parent->fwnode,
&parent->tracker);
if (IS_ERR_OR_NULL(parent->pin)) {
dev_err(ice_pf_to_dev(pf),
"Cannot get fwnode pin reference\n");
goto out;
}
if (is_rclk_parent) {
/* Register rclk pin via on-pin relationship */
pin = &pf->dplls.rclk;
ret = dpll_pin_on_pin_register(parent->pin, pin->pin,
&ice_dpll_rclk_ops, pin);
if (ret) {
dev_err(ice_pf_to_dev(pf),
"RCLK pin register failed: %pe\n",
ERR_PTR(ret));
goto drop_parent_ref;
}
} else if (is_tx_synce_parent) {
/* Register TX-CLK SYNCE pin directly to TXC DPLL */
pin = &pf->dplls.txclks[E825_EXT_SYNCE_PIN_IDX];
ret = dpll_pin_register(pf->dplls.txc.dpll, pin->pin,
&ice_dpll_txclk_ops, pin);
if (ret) {
dev_err(ice_pf_to_dev(pf),
"TX SYNCE pin register failed: %pe\n",
ERR_PTR(ret));
goto drop_parent_ref;
}
}
break;
case DPLL_PIN_DELETED:
if (IS_ERR_OR_NULL(parent->pin)) {
/* We have already our pin unregistered */
goto out;
}
if (is_rclk_parent) {
/* Unregister rclk pin */
pin = &pf->dplls.rclk;
dpll_pin_on_pin_unregister(parent->pin, pin->pin,
&ice_dpll_rclk_ops, pin);
} else if (is_tx_synce_parent) {
/* Unregister TX-CLK SYNCE pin from TXC DPLL */
pin = &pf->dplls.txclks[E825_EXT_SYNCE_PIN_IDX];
dpll_pin_unregister(pf->dplls.txc.dpll, pin->pin,
&ice_dpll_txclk_ops, pin);
}
drop_parent_ref:
/* Drop fwnode pin reference */
dpll_pin_put(parent->pin, &parent->tracker);
parent->pin = NULL;
break;
default:
break;
}
out:
kfree(w);
}
static int ice_dpll_pin_notify(struct notifier_block *nb, unsigned long action,
void *data)
{
struct ice_dpll_pin *pin = container_of(nb, struct ice_dpll_pin, nb);
struct dpll_pin_notifier_info *info = data;
struct ice_dpll_pin_work *work;
if (action != DPLL_PIN_CREATED && action != DPLL_PIN_DELETED)
return NOTIFY_DONE;
/* Check if the reported pin is this one */
if (pin->fwnode != info->fwnode)
return NOTIFY_DONE; /* Not this pin */
/* Ignore notification which are the outcome of internal pin
* registration/unregistration calls - synce pin case.
*/
if (info->src_clock_id == pin->pf->dplls.clock_id)
return NOTIFY_DONE;
work = kzalloc_obj(*work);
if (!work)
return NOTIFY_DONE;
INIT_WORK(&work->work, ice_dpll_pin_notify_work);
work->action = action;
work->pin = pin;
queue_work(pin->pf->dplls.wq, &work->work);
return NOTIFY_OK;
}
/**
* ice_dpll_init_pin_common - initialize pin
* @pf: board private structure
* @pin: pin to register
* @start_idx: on which index shall allocation start in dpll subsystem
* @ops: callback ops registered with the pins
*
* Allocate resource for given pin in dpll subsystem. Register the pin with
* the parents it has in the info.
*
* Return:
* * 0 - success
* * negative - registration failure reason
*/
static int
ice_dpll_init_pin_common(struct ice_pf *pf, struct ice_dpll_pin *pin,
int start_idx, const struct dpll_pin_ops *ops)
{
struct ice_dpll_pin *parent;
int ret, i;
ret = ice_dpll_get_pins(pf, pin, start_idx, 1, pf->dplls.clock_id);
if (ret)
return ret;
for (i = 0; i < pin->num_parents; i++) {
parent = &pf->dplls.inputs[pin->parent_idx[i]];
if (IS_ERR_OR_NULL(parent->pin)) {
if (!ice_dpll_is_fwnode_pin(parent)) {
ret = -ENODEV;
goto unregister_pins;
}
parent->pin = fwnode_dpll_pin_find(parent->fwnode,
&parent->tracker);
if (IS_ERR_OR_NULL(parent->pin)) {
dev_info(ice_pf_to_dev(pf),
"Mux pin not registered yet\n");
continue;
}
}
ret = dpll_pin_on_pin_register(parent->pin, pin->pin, ops, pin);
if (ret)
goto unregister_pins;
}
return 0;
unregister_pins:
while (i) {
parent = &pf->dplls.inputs[pin->parent_idx[--i]];
if (IS_ERR_OR_NULL(parent->pin))
continue;
dpll_pin_on_pin_unregister(parent->pin, pin->pin, ops, pin);
}
ice_dpll_release_pins(pin, 1);
return ret;
}
/**
* ice_dpll_init_rclk_pin - initialize recovered clock pin
* @pf: board private structure
* @start_idx: on which index shall allocation start in dpll subsystem
* @ops: callback ops registered with the pins
*
* Allocate resource for recovered clock pin in dpll subsystem. Register the
* pin with the parents it has in the info.
*
* Return:
* * 0 - success
* * negative - registration failure reason
*/
static int
ice_dpll_init_rclk_pin(struct ice_pf *pf, int start_idx,
const struct dpll_pin_ops *ops)
{
struct ice_vsi *vsi = ice_get_main_vsi(pf);
int ret;
ret = ice_dpll_init_pin_common(pf, &pf->dplls.rclk, start_idx, ops);
if (ret)
return ret;
dpll_netdev_pin_set(vsi->netdev, pf->dplls.rclk.pin);
return 0;
}
static void
ice_dpll_stop_fwnode_pin_activity(struct ice_dpll_pin *pin, bool flush)
{
unregister_dpll_notifier(&pin->nb);
if (flush)
flush_workqueue(pin->pf->dplls.wq);
}
static void
ice_dpll_release_fwnode_pin(struct ice_dpll_pin *pin)
{
if (!IS_ERR_OR_NULL(pin->pin)) {
dpll_pin_put(pin->pin, &pin->tracker);
pin->pin = NULL;
}
fwnode_handle_put(pin->fwnode);
pin->fwnode = NULL;
}
static void
ice_dpll_deinit_fwnode_pin(struct ice_dpll_pin *pin)
{
ice_dpll_stop_fwnode_pin_activity(pin, true);
ice_dpll_release_fwnode_pin(pin);
}
static void
ice_dpll_deinit_fwnode_pins(struct ice_pf *pf, struct ice_dpll_pin *pins,
int start_idx)
{
int i;
for (i = 0; i < pf->dplls.rclk.num_parents; i++)
ice_dpll_deinit_fwnode_pin(&pins[start_idx + i]);
destroy_workqueue(pf->dplls.wq);
}
static int ice_dpll_deinit_txclk_pins(struct ice_pf *pf)
{
struct ice_dpll_pin *synce_pin = &pf->dplls.txclks[E825_EXT_SYNCE_PIN_IDX];
struct ice_dpll *dt = &pf->dplls.txc;
ice_dpll_stop_fwnode_pin_activity(synce_pin, true);
ice_dpll_unregister_pins(dt->dpll, pf->dplls.txclks,
&ice_dpll_txclk_ops,
ARRAY_SIZE(pf->dplls.txclks));
ice_dpll_release_pins(&pf->dplls.txclks[E825_EXT_EREF_PIN_IDX], 1);
/* ice_dpll_release_pins() puts the pin but does not clear the slot,
* unlike ice_dpll_release_fwnode_pin() used for SYNCE below. NULL it
* so a late ice_txclk_get_pin() returns NULL rather than a dangling
* pointer.
*/
pf->dplls.txclks[E825_EXT_EREF_PIN_IDX].pin = NULL;
ice_dpll_release_fwnode_pin(synce_pin);
return 0;
}
/**
* ice_dpll_deinit_pins - deinitialize direct pins
* @pf: board private structure
* @cgu: if cgu is controlled by this pf
*
* If cgu is owned unregister directly connected pins from the dplls.
* Release resources of directly connected pins from the dpll subsystem.
*/
static void ice_dpll_deinit_pins(struct ice_pf *pf, bool cgu)
{
struct ice_dpll_pin *outputs = pf->dplls.outputs;
struct ice_dpll_pin *inputs = pf->dplls.inputs;
int num_outputs = pf->dplls.num_outputs;
int num_inputs = pf->dplls.num_inputs;
struct ice_dplls *d = &pf->dplls;
struct ice_dpll *de = &d->eec;
struct ice_dpll *dp = &d->pps;
ice_dpll_deinit_rclk_pin(pf);
if (pf->hw.mac_type == ICE_MAC_GENERIC_3K_E825) {
ice_dpll_deinit_txclk_pins(pf);
ice_dpll_deinit_fwnode_pins(pf, pf->dplls.inputs, 0);
}
if (cgu) {
ice_dpll_unregister_pins(dp->dpll, inputs, &ice_dpll_input_ops,
num_inputs);
ice_dpll_unregister_pins(de->dpll, inputs, &ice_dpll_input_ops,
num_inputs);
}
ice_dpll_release_pins(inputs, num_inputs);
if (cgu) {
ice_dpll_unregister_pins(dp->dpll, outputs,
&ice_dpll_output_ops, num_outputs);
ice_dpll_unregister_pins(de->dpll, outputs,
&ice_dpll_output_ops, num_outputs);
ice_dpll_release_pins(outputs, num_outputs);
if (!pf->dplls.generic) {
ice_dpll_deinit_direct_pins(pf, cgu, pf->dplls.ufl,
ICE_DPLL_PIN_SW_NUM,
&ice_dpll_pin_ufl_ops,
pf->dplls.pps.dpll,
pf->dplls.eec.dpll);
ice_dpll_deinit_direct_pins(pf, cgu, pf->dplls.sma,
ICE_DPLL_PIN_SW_NUM,
&ice_dpll_pin_sma_ops,
pf->dplls.pps.dpll,
pf->dplls.eec.dpll);
}
}
}
static struct fwnode_handle *
ice_dpll_pin_node_get(struct ice_pf *pf, const char *name)
{
struct fwnode_handle *fwnode = dev_fwnode(ice_pf_to_dev(pf));
int index;
index = fwnode_property_match_string(fwnode, "dpll-pin-names", name);
if (index < 0)
return ERR_PTR(-ENOENT);
return fwnode_find_reference(fwnode, "dpll-pins", index);
}
static int
ice_dpll_init_fwnode_pin(struct ice_dpll_pin *pin, const char *name)
{
struct ice_pf *pf = pin->pf;
int ret;
pin->fwnode = ice_dpll_pin_node_get(pf, name);
if (IS_ERR(pin->fwnode)) {
dev_err(ice_pf_to_dev(pf),
"Failed to find %s firmware node: %pe\n", name,
pin->fwnode);
pin->fwnode = NULL;
return -ENODEV;
}
dev_dbg(ice_pf_to_dev(pf), "Found fwnode node for %s\n", name);
pin->pin = fwnode_dpll_pin_find(pin->fwnode, &pin->tracker);
if (IS_ERR_OR_NULL(pin->pin)) {
dev_info(ice_pf_to_dev(pf),
"DPLL pin for %pfwp not registered yet\n",
pin->fwnode);
pin->pin = NULL;
}
pin->nb.notifier_call = ice_dpll_pin_notify;
ret = register_dpll_notifier(&pin->nb);
if (ret) {
dev_err(ice_pf_to_dev(pf),
"Failed to subscribe for DPLL notifications\n");
if (!IS_ERR_OR_NULL(pin->pin)) {
dpll_pin_put(pin->pin, &pin->tracker);
pin->pin = NULL;
}
fwnode_handle_put(pin->fwnode);
pin->fwnode = NULL;
return ret;
}
return ret;
}
/**
* ice_dpll_init_fwnode_pins - initialize pins from device tree
* @pf: board private structure
* @pins: pointer to pins array
* @start_idx: starting index for pins
* @count: number of pins to initialize
*
* Initialize input pins for E825 RCLK support. The parent pins (rclk0, rclk1)
* are expected to be defined by the system firmware (ACPI). This function
* allocates them in the dpll subsystem and stores their indices for later
* registration with the rclk pin.
*
* Return:
* * 0 - success
* * negative - initialization failure reason
*/
static int
ice_dpll_init_fwnode_pins(struct ice_pf *pf, struct ice_dpll_pin *pins,
int start_idx)
{
char pin_name[16];
int i, ret;
pf->dplls.wq = create_singlethread_workqueue("ice_dpll_wq");
if (!pf->dplls.wq)
return -ENOMEM;
for (i = 0; i < pf->dplls.rclk.num_parents; i++) {
pins[start_idx + i].pf = pf;
snprintf(pin_name, sizeof(pin_name), "rclk%u", i);
ret = ice_dpll_init_fwnode_pin(&pins[start_idx + i], pin_name);
if (ret)
goto error;
}
return 0;
error:
/*
* A notifier worker may already be queued and blocked on dpll_init;
* release it so the per-pin flush below does not deadlock.
*/
complete_all(&pf->dplls.dpll_init);
while (i--)
ice_dpll_deinit_fwnode_pin(&pins[start_idx + i]);
destroy_workqueue(pf->dplls.wq);
return ret;
}
static int ice_dpll_init_txclk_pins(struct ice_pf *pf, int start_idx)
{
struct ice_dpll_pin *ref_pin = pf->dplls.txclks;
struct ice_dpll *txc = &pf->dplls.txc;
int ret;
/* Configure EXT_EREF0 pin */
ret = ice_dpll_get_pins(pf, ref_pin, start_idx, 1, pf->dplls.clock_id);
if (ret)
return ret;
ret = dpll_pin_register(txc->dpll, ref_pin->pin, &ice_dpll_txclk_ops,
ref_pin);
if (ret)
goto err_release_ext_eref;
/*
* Configure EXT_SYNCE pin (fwnode-backed).
* The pin may not yet be available; in that case registration
* will be deferred via the notifier path.
*/
ref_pin++;
ret = ice_dpll_init_fwnode_pin(ref_pin, ice_dpll_fwnode_ext_synce);
if (ret)
goto err_unregister_ext_eref;
if (IS_ERR_OR_NULL(ref_pin->pin)) {
dev_dbg(ice_pf_to_dev(pf),
"Tx-clk SYNCE pin not registered yet\n");
return 0;
}
ret = dpll_pin_register(txc->dpll, ref_pin->pin, &ice_dpll_txclk_ops,
ref_pin);
if (ret)
goto err_deinit_synce;
return 0;
err_deinit_synce:
/*
* Avoid deadlock against notifier workers blocked on dpll_init.
* The outer init error path will complete dpll_init and flush the
* shared workqueue before destroying it.
*/
ice_dpll_stop_fwnode_pin_activity(ref_pin, false);
ice_dpll_release_fwnode_pin(ref_pin);
err_unregister_ext_eref:
dpll_pin_unregister(txc->dpll,
pf->dplls.txclks[E825_EXT_EREF_PIN_IDX].pin,
&ice_dpll_txclk_ops,
&pf->dplls.txclks[E825_EXT_EREF_PIN_IDX]);
err_release_ext_eref:
ice_dpll_release_pins(&pf->dplls.txclks[E825_EXT_EREF_PIN_IDX], 1);
return ret;
}
/**
* ice_dpll_init_pins_e825 - init pins and register pins with a dplls
* @pf: board private structure
* @cgu: if cgu is present and controlled by this NIC
*
* Initialize directly connected pf's pins within pf's dplls in a Linux dpll
* subsystem.
*
* Return:
* * 0 - success
* * negative - initialization failure reason
*/
static int ice_dpll_init_pins_e825(struct ice_pf *pf)
{
int ret;
ret = ice_dpll_init_fwnode_pins(pf, pf->dplls.inputs, 0);
if (ret)
return ret;
ret = ice_dpll_init_rclk_pin(pf, DPLL_PIN_IDX_UNSPEC,
&ice_dpll_rclk_ops);
if (ret)
goto unregister_pins;
ret = ice_dpll_init_txclk_pins(pf, 0);
if (ret)
ice_dpll_deinit_rclk_pin(pf);
unregister_pins:
if (ret) {
/* Inform DPLL notifier works that DPLL init was finished
* unsuccessfully (ICE_DPLL_FLAG not set).
*/
complete_all(&pf->dplls.dpll_init);
ice_dpll_deinit_fwnode_pins(pf, pf->dplls.inputs, 0);
}
return ret;
}
/**
* ice_dpll_init_pins - init pins and register pins with a dplls
* @pf: board private structure
* @cgu: if cgu is present and controlled by this NIC
*
* Initialize directly connected pf's pins within pf's dplls in a Linux dpll
* subsystem.
*
* Return:
* * 0 - success
* * negative - initialization failure reason
*/
static int ice_dpll_init_pins(struct ice_pf *pf, bool cgu)
{
const struct dpll_pin_ops *output_ops;
const struct dpll_pin_ops *input_ops;
int ret, count;
input_ops = &ice_dpll_input_ops;
output_ops = &ice_dpll_output_ops;
ret = ice_dpll_init_direct_pins(pf, cgu, pf->dplls.inputs, 0,
pf->dplls.num_inputs, input_ops,
pf->dplls.eec.dpll,
pf->dplls.pps.dpll);
if (ret)
return ret;
count = pf->dplls.num_inputs;
if (cgu) {
ret = ice_dpll_init_direct_pins(pf, cgu, pf->dplls.outputs,
count, pf->dplls.num_outputs,
output_ops, pf->dplls.eec.dpll,
pf->dplls.pps.dpll);
if (ret)
goto deinit_inputs;
count += pf->dplls.num_outputs;
if (!pf->dplls.generic) {
ret = ice_dpll_init_direct_pins(pf, cgu, pf->dplls.sma,
count,
ICE_DPLL_PIN_SW_NUM,
&ice_dpll_pin_sma_ops,
pf->dplls.eec.dpll,
pf->dplls.pps.dpll);
if (ret)
goto deinit_outputs;
count += ICE_DPLL_PIN_SW_NUM;
ret = ice_dpll_init_direct_pins(pf, cgu, pf->dplls.ufl,
count,
ICE_DPLL_PIN_SW_NUM,
&ice_dpll_pin_ufl_ops,
pf->dplls.eec.dpll,
pf->dplls.pps.dpll);
if (ret)
goto deinit_sma;
count += ICE_DPLL_PIN_SW_NUM;
}
ret = ice_dpll_pin_ref_sync_register(pf->dplls.inputs,
pf->dplls.num_inputs);
if (ret)
goto deinit_ufl;
ret = ice_dpll_pin_ref_sync_register(pf->dplls.sma,
ICE_DPLL_PIN_SW_NUM);
if (ret)
goto deinit_ufl;
} else {
count += pf->dplls.num_outputs + 2 * ICE_DPLL_PIN_SW_NUM;
}
ret = ice_dpll_init_rclk_pin(pf, count + pf->ptp.port.port_num,
&ice_dpll_rclk_ops);
if (ret)
goto deinit_ufl;
return 0;
deinit_ufl:
ice_dpll_deinit_direct_pins(pf, cgu, pf->dplls.ufl, ICE_DPLL_PIN_SW_NUM,
&ice_dpll_pin_ufl_ops, pf->dplls.pps.dpll,
pf->dplls.eec.dpll);
deinit_sma:
ice_dpll_deinit_direct_pins(pf, cgu, pf->dplls.sma, ICE_DPLL_PIN_SW_NUM,
&ice_dpll_pin_sma_ops, pf->dplls.pps.dpll,
pf->dplls.eec.dpll);
deinit_outputs:
ice_dpll_deinit_direct_pins(pf, cgu, pf->dplls.outputs,
pf->dplls.num_outputs,
output_ops, pf->dplls.pps.dpll,
pf->dplls.eec.dpll);
deinit_inputs:
ice_dpll_deinit_direct_pins(pf, cgu, pf->dplls.inputs,
pf->dplls.num_inputs,
input_ops, pf->dplls.pps.dpll,
pf->dplls.eec.dpll);
return ret;
}
/**
* ice_dpll_deinit_dpll - deinitialize dpll device
* @pf: board private structure
* @d: pointer to ice_dpll
* @cgu: if cgu is present and controlled by this NIC
*
* If cgu is owned, unregister the DPLL from DPLL subsystem.
* Release resources of DPLL device from DPLL subsystem.
*/
static void
ice_dpll_deinit_dpll(struct ice_pf *pf, struct ice_dpll *d, bool cgu)
{
if (cgu || pf->hw.mac_type == ICE_MAC_GENERIC_3K_E825)
dpll_device_unregister(d->dpll, d->ops, d);
dpll_device_put(d->dpll, &d->tracker);
}
/**
* ice_dpll_init_dpll - initialize dpll device in dpll subsystem
* @pf: board private structure
* @d: dpll to be initialized
* @cgu: if cgu is present and controlled by this NIC
* @type: type of dpll being initialized
*
* Allocate DPLL instance for this board in dpll subsystem, if cgu is controlled
* by this NIC, register DPLL with the callback ops.
*
* Return:
* * 0 - success
* * negative - initialization failure reason
*/
static int
ice_dpll_init_dpll(struct ice_pf *pf, struct ice_dpll *d, bool cgu,
enum dpll_type type)
{
u64 clock_id = pf->dplls.clock_id;
int ret;
d->dpll = dpll_device_get(clock_id, d->dpll_idx, THIS_MODULE,
&d->tracker);
if (IS_ERR(d->dpll)) {
ret = PTR_ERR(d->dpll);
dev_err(ice_pf_to_dev(pf),
"dpll_device_get failed (%p) err=%d\n", d, ret);
return ret;
}
d->pf = pf;
if (cgu || pf->hw.mac_type == ICE_MAC_GENERIC_3K_E825) {
const struct dpll_device_ops *ops = &ice_dpll_ops;
if (type == DPLL_TYPE_PPS && ice_dpll_is_pps_phase_monitor(pf))
ops = &ice_dpll_pom_ops;
if (cgu)
ice_dpll_update_state(pf, d, true);
ret = dpll_device_register(d->dpll, type, ops, d);
if (ret) {
dpll_device_put(d->dpll, &d->tracker);
d->dpll = NULL;
return ret;
}
d->ops = ops;
}
return 0;
}
/**
* ice_dpll_deinit_worker - deinitialize dpll kworker
* @pf: board private structure
*
* Stop dpll's kworker, release it's resources.
*/
static void ice_dpll_deinit_worker(struct ice_pf *pf)
{
struct ice_dplls *d = &pf->dplls;
kthread_cancel_delayed_work_sync(&d->work);
kthread_destroy_worker(d->kworker);
}
/**
* ice_dpll_init_worker - Initialize DPLLs periodic worker
* @pf: board private structure
*
* Create and start DPLLs periodic worker.
*
* Context: Shall be called after pf->dplls.lock is initialized.
* Return:
* * 0 - success
* * negative - create worker failure
*/
static int ice_dpll_init_worker(struct ice_pf *pf)
{
struct ice_dplls *d = &pf->dplls;
struct kthread_worker *kworker;
kthread_init_delayed_work(&d->work, ice_dpll_periodic_work);
kworker = kthread_run_worker(0, "ice-dplls-%s",
dev_name(ice_pf_to_dev(pf)));
if (IS_ERR(kworker))
return PTR_ERR(kworker);
d->kworker = kworker;
d->cgu_state_acq_err_num = 0;
kthread_queue_delayed_work(d->kworker, &d->work, 0);
return 0;
}
/**
* ice_dpll_phase_range_set - initialize phase adjust range helper
* @range: pointer to phase adjust range struct to be initialized
* @phase_adj: a value to be used as min(-)/max(+) boundary
*/
static void ice_dpll_phase_range_set(struct dpll_pin_phase_adjust_range *range,
u32 phase_adj)
{
range->min = -phase_adj;
range->max = phase_adj;
}
/**
* ice_dpll_init_info_pins_generic - initializes generic pins info
* @pf: board private structure
* @input: if input pins initialized
*
* Init information for generic pins, cache them in PF's pins structures.
*
* Return:
* * 0 - success
* * negative - init failure reason
*/
static int ice_dpll_init_info_pins_generic(struct ice_pf *pf, bool input)
{
struct ice_dpll *de = &pf->dplls.eec, *dp = &pf->dplls.pps;
static const char labels[][sizeof("99")] = {
"0", "1", "2", "3", "4", "5", "6", "7", "8",
"9", "10", "11", "12", "13", "14", "15" };
u32 cap = DPLL_PIN_CAPABILITIES_STATE_CAN_CHANGE;
enum ice_dpll_pin_type pin_type;
int i, pin_num, ret = -EINVAL;
struct ice_dpll_pin *pins;
u32 phase_adj_max;
if (input) {
pin_num = pf->dplls.num_inputs;
pins = pf->dplls.inputs;
phase_adj_max = pf->dplls.input_phase_adj_max;
pin_type = ICE_DPLL_PIN_TYPE_INPUT;
cap |= DPLL_PIN_CAPABILITIES_PRIORITY_CAN_CHANGE;
} else {
pin_num = pf->dplls.num_outputs;
pins = pf->dplls.outputs;
phase_adj_max = pf->dplls.output_phase_adj_max;
pin_type = ICE_DPLL_PIN_TYPE_OUTPUT;
}
if (pin_num > ARRAY_SIZE(labels))
return ret;
for (i = 0; i < pin_num; i++) {
pins[i].idx = i;
pins[i].prop.board_label = labels[i];
ice_dpll_phase_range_set(&pins[i].prop.phase_range,
phase_adj_max);
pins[i].prop.capabilities = cap;
pins[i].pf = pf;
ret = ice_dpll_pin_state_update(pf, &pins[i], pin_type, NULL);
if (ret)
break;
if (input && pins[i].freq == ICE_DPLL_PIN_GEN_RCLK_FREQ)
pins[i].prop.type = DPLL_PIN_TYPE_MUX;
else
pins[i].prop.type = DPLL_PIN_TYPE_EXT;
if (!input)
continue;
ret = ice_aq_get_cgu_ref_prio(&pf->hw, de->dpll_idx, i,
&de->input_prio[i]);
if (ret)
break;
ret = ice_aq_get_cgu_ref_prio(&pf->hw, dp->dpll_idx, i,
&dp->input_prio[i]);
if (ret)
break;
}
return ret;
}
/**
* ice_dpll_init_info_direct_pins - initializes direct pins info
* @pf: board private structure
* @pin_type: type of pins being initialized
*
* Init information for directly connected pins, cache them in pf's pins
* structures.
*
* Return:
* * 0 - success
* * negative - init failure reason
*/
static int
ice_dpll_init_info_direct_pins(struct ice_pf *pf,
enum ice_dpll_pin_type pin_type)
{
struct ice_dpll *de = &pf->dplls.eec, *dp = &pf->dplls.pps;
int num_pins, i, ret = -EINVAL;
struct ice_hw *hw = &pf->hw;
struct ice_dpll_pin *pins;
unsigned long caps;
u32 phase_adj_max;
u8 freq_supp_num;
bool input;
switch (pin_type) {
case ICE_DPLL_PIN_TYPE_INPUT:
pins = pf->dplls.inputs;
num_pins = pf->dplls.num_inputs;
phase_adj_max = pf->dplls.input_phase_adj_max;
input = true;
break;
case ICE_DPLL_PIN_TYPE_OUTPUT:
pins = pf->dplls.outputs;
num_pins = pf->dplls.num_outputs;
phase_adj_max = pf->dplls.output_phase_adj_max;
input = false;
break;
default:
return -EINVAL;
}
if (num_pins != ice_cgu_get_num_pins(hw, input)) {
pf->dplls.generic = true;
return ice_dpll_init_info_pins_generic(pf, input);
}
for (i = 0; i < num_pins; i++) {
caps = 0;
pins[i].idx = i;
pins[i].prop.board_label = ice_cgu_get_pin_name(hw, i, input);
pins[i].prop.type = ice_cgu_get_pin_type(hw, i, input);
if (input) {
ret = ice_aq_get_cgu_ref_prio(hw, de->dpll_idx, i,
&de->input_prio[i]);
if (ret)
return ret;
ret = ice_aq_get_cgu_ref_prio(hw, dp->dpll_idx, i,
&dp->input_prio[i]);
if (ret)
return ret;
caps |= (DPLL_PIN_CAPABILITIES_PRIORITY_CAN_CHANGE |
DPLL_PIN_CAPABILITIES_STATE_CAN_CHANGE);
if (ice_dpll_is_sw_pin(pf, i, true))
pins[i].hidden = true;
} else {
ret = ice_cgu_get_output_pin_state_caps(hw, i, &caps);
if (ret)
return ret;
if (ice_dpll_is_sw_pin(pf, i, false))
pins[i].hidden = true;
}
ice_dpll_phase_range_set(&pins[i].prop.phase_range,
phase_adj_max);
pins[i].prop.capabilities = caps;
ret = ice_dpll_pin_state_update(pf, &pins[i], pin_type, NULL);
if (ret)
return ret;
pins[i].prop.freq_supported =
ice_cgu_get_pin_freq_supp(hw, i, input, &freq_supp_num);
pins[i].prop.freq_supported_num = freq_supp_num;
pins[i].pf = pf;
}
if (input)
ret = ice_dpll_init_ref_sync_inputs(pf);
return ret;
}
/**
* ice_dpll_init_info_pin_on_pin_e825c - initializes rclk pin information
* @pf: board private structure
*
* Init information for rclk pin, cache them in pf->dplls.rclk.
*
* Return:
* * 0 - success
*/
static int ice_dpll_init_info_pin_on_pin_e825c(struct ice_pf *pf)
{
struct ice_dpll_pin *rclk_pin = &pf->dplls.rclk;
rclk_pin->prop.type = DPLL_PIN_TYPE_SYNCE_ETH_PORT;
rclk_pin->prop.capabilities |= DPLL_PIN_CAPABILITIES_STATE_CAN_CHANGE;
rclk_pin->pf = pf;
return 0;
}
/**
* ice_dpll_init_info_rclk_pin - initializes rclk pin information
* @pf: board private structure
*
* Init information for rclk pin, cache them in pf->dplls.rclk.
*
* Return:
* * 0 - success
* * negative - init failure reason
*/
static int ice_dpll_init_info_rclk_pin(struct ice_pf *pf)
{
struct ice_dpll_pin *pin = &pf->dplls.rclk;
pin->prop.type = DPLL_PIN_TYPE_SYNCE_ETH_PORT;
pin->prop.capabilities |= DPLL_PIN_CAPABILITIES_STATE_CAN_CHANGE;
pin->pf = pf;
return ice_dpll_pin_state_update(pf, pin,
ICE_DPLL_PIN_TYPE_RCLK_INPUT, NULL);
}
/**
* ice_dpll_init_info_sw_pins - initializes software controlled pin information
* @pf: board private structure
*
* Init information for software controlled pins, cache them in
* pf->dplls.sma and pf->dplls.ufl.
*
* Return:
* * 0 - success
* * negative - init failure reason
*/
static int ice_dpll_init_info_sw_pins(struct ice_pf *pf)
{
u8 freq_supp_num, pin_abs_idx, input_idx_offset = 0;
struct ice_dplls *d = &pf->dplls;
struct ice_dpll_pin *pin;
u32 phase_adj_max, caps;
int i, ret;
u8 data;
if (pf->hw.device_id == ICE_DEV_ID_E810C_QSFP)
input_idx_offset = ICE_E810_RCLK_PINS_NUM;
phase_adj_max = max(d->input_phase_adj_max, d->output_phase_adj_max);
caps = DPLL_PIN_CAPABILITIES_STATE_CAN_CHANGE;
for (i = 0; i < ICE_DPLL_PIN_SW_NUM; i++) {
pin = &d->sma[i];
pin->idx = i;
pin->prop.type = DPLL_PIN_TYPE_EXT;
pin_abs_idx = ICE_DPLL_PIN_SW_INPUT_ABS(i) + input_idx_offset;
pin->prop.freq_supported =
ice_cgu_get_pin_freq_supp(&pf->hw, pin_abs_idx,
true, &freq_supp_num);
pin->prop.freq_supported_num = freq_supp_num;
pin->prop.capabilities =
(DPLL_PIN_CAPABILITIES_DIRECTION_CAN_CHANGE |
DPLL_PIN_CAPABILITIES_PRIORITY_CAN_CHANGE |
caps);
pin->pf = pf;
pin->prop.board_label = ice_dpll_sw_pin_sma[i];
pin->input = &d->inputs[pin_abs_idx];
if (pin->input->ref_sync)
pin->ref_sync = pin->input->ref_sync - pin_abs_idx;
pin->output = &d->outputs[ICE_DPLL_PIN_SW_OUTPUT_ABS(i)];
ice_dpll_phase_range_set(&pin->prop.phase_range, phase_adj_max);
}
for (i = 0; i < ICE_DPLL_PIN_SW_NUM; i++) {
pin = &d->ufl[i];
pin->idx = i;
pin->prop.type = DPLL_PIN_TYPE_EXT;
pin->prop.capabilities = caps;
pin->pf = pf;
pin->prop.board_label = ice_dpll_sw_pin_ufl[i];
if (i == ICE_DPLL_PIN_SW_1_IDX) {
pin->direction = DPLL_PIN_DIRECTION_OUTPUT;
pin_abs_idx = ICE_DPLL_PIN_SW_OUTPUT_ABS(i);
pin->prop.freq_supported =
ice_cgu_get_pin_freq_supp(&pf->hw, pin_abs_idx,
false,
&freq_supp_num);
pin->prop.freq_supported_num = freq_supp_num;
pin->input = NULL;
pin->output = &d->outputs[pin_abs_idx];
} else if (i == ICE_DPLL_PIN_SW_2_IDX) {
pin->direction = DPLL_PIN_DIRECTION_INPUT;
pin_abs_idx = ICE_DPLL_PIN_SW_INPUT_ABS(i) +
input_idx_offset;
pin->output = NULL;
pin->input = &d->inputs[pin_abs_idx];
pin->prop.freq_supported =
ice_cgu_get_pin_freq_supp(&pf->hw, pin_abs_idx,
true, &freq_supp_num);
pin->prop.freq_supported_num = freq_supp_num;
pin->prop.capabilities =
(DPLL_PIN_CAPABILITIES_PRIORITY_CAN_CHANGE |
caps);
}
ice_dpll_phase_range_set(&pin->prop.phase_range, phase_adj_max);
}
/* Initialize the SMA control register to a known-good default state.
* Without this write the PCA9575 GPIO expander retains its power-on
* default (all outputs high) which makes all SW pins appear inactive.
* Set SMA1 and SMA2 as active inputs, disable U.FL1 output and
* U.FL2 input.
*/
ret = ice_read_sma_ctrl(&pf->hw, &data);
if (ret)
return ret;
data &= ~ICE_ALL_SMA_MASK;
data |= ICE_SMA1_TX_EN | ICE_SMA2_TX_EN | ICE_SMA2_UFL2_RX_DIS;
ret = ice_write_sma_ctrl(&pf->hw, data);
if (ret)
return ret;
ret = ice_dpll_pin_state_update(pf, pin, ICE_DPLL_PIN_TYPE_SOFTWARE,
NULL);
if (ret)
return ret;
return 0;
}
/**
* ice_dpll_init_info_txclk_pins_e825c - initializes tx-clk pins information
* @pf: board private structure
*
* Init information for tx-clks pin, cache them in pf->dplls.txclks
*
* Return:
* * 0 - success
*/
static int ice_dpll_init_info_txclk_pins_e825c(struct ice_pf *pf)
{
struct ice_dpll_pin *tx_pin;
for (int i = 0; i < ICE_DPLL_TXCLK_NUM_MAX; i++) {
tx_pin = &pf->dplls.txclks[i];
tx_pin->prop.type = DPLL_PIN_TYPE_EXT;
tx_pin->prop.capabilities |=
DPLL_PIN_CAPABILITIES_STATE_CAN_CHANGE;
tx_pin->pf = pf;
if (i == E825_EXT_EREF_PIN_IDX) {
tx_pin->prop.board_label = ice_dpll_ext_eref_pin;
tx_pin->tx_ref_src = ICE_REF_CLK_EREF0;
} else if (i == E825_EXT_SYNCE_PIN_IDX) {
tx_pin->tx_ref_src = ICE_REF_CLK_SYNCE;
}
}
return 0;
}
/**
* ice_dpll_init_pins_info - init pins info wrapper
* @pf: board private structure
* @pin_type: type of pins being initialized
*
* Wraps functions for pin initialization.
*
* Return:
* * 0 - success
* * negative - init failure reason
*/
static int
ice_dpll_init_pins_info(struct ice_pf *pf, enum ice_dpll_pin_type pin_type)
{
switch (pin_type) {
case ICE_DPLL_PIN_TYPE_INPUT:
case ICE_DPLL_PIN_TYPE_OUTPUT:
return ice_dpll_init_info_direct_pins(pf, pin_type);
case ICE_DPLL_PIN_TYPE_RCLK_INPUT:
if (pf->hw.mac_type == ICE_MAC_GENERIC_3K_E825)
return ice_dpll_init_info_pin_on_pin_e825c(pf);
else
return ice_dpll_init_info_rclk_pin(pf);
case ICE_DPLL_PIN_TYPE_SOFTWARE:
return ice_dpll_init_info_sw_pins(pf);
case ICE_DPLL_PIN_TYPE_TXCLK:
return ice_dpll_init_info_txclk_pins_e825c(pf);
default:
return -EINVAL;
}
}
/**
* ice_dpll_deinit_info - release memory allocated for pins info
* @pf: board private structure
*
* Release memory allocated for pins by ice_dpll_init_info function.
*/
static void ice_dpll_deinit_info(struct ice_pf *pf)
{
kfree(pf->dplls.inputs);
pf->dplls.inputs = NULL;
kfree(pf->dplls.outputs);
pf->dplls.outputs = NULL;
kfree(pf->dplls.eec.input_prio);
pf->dplls.eec.input_prio = NULL;
kfree(pf->dplls.pps.input_prio);
pf->dplls.pps.input_prio = NULL;
}
/**
* ice_dpll_init_info_e825c - prepare pf's dpll information structure for e825c
* device
* @pf: board private structure
*
* Acquire (from HW) and set basic DPLL information (on pf->dplls struct).
*
* Return:
* * 0 - success
* * negative - init failure reason
*/
static int ice_dpll_init_info_e825c(struct ice_pf *pf)
{
struct ice_dplls *d = &pf->dplls;
struct ice_dpll *dt = &d->txc;
int ret = 0;
int i;
d->clock_id = ice_generate_clock_id(pf);
d->num_inputs = ICE_SYNCE_CLK_NUM;
dt->dpll_state = ice_txclk_lock_status(pf->ptp.port.tx_clk);
dt->mode = DPLL_MODE_MANUAL;
dt->dpll_idx = pf->ptp.port.port_num;
d->inputs = kzalloc_objs(*d->inputs, d->num_inputs);
if (!d->inputs)
return -ENOMEM;
ret = ice_get_cgu_rclk_pin_info(&pf->hw, &d->base_rclk_idx,
&pf->dplls.rclk.num_parents);
if (ret)
goto deinit_info;
for (i = 0; i < pf->dplls.rclk.num_parents; i++)
pf->dplls.rclk.parent_idx[i] = d->base_rclk_idx + i;
ret = ice_dpll_init_pins_info(pf, ICE_DPLL_PIN_TYPE_RCLK_INPUT);
if (ret)
goto deinit_info;
ret = ice_dpll_init_pins_info(pf, ICE_DPLL_PIN_TYPE_TXCLK);
if (ret)
goto deinit_info;
dev_dbg(ice_pf_to_dev(pf),
"%s - success, inputs: %u, outputs: %u, rclk-parents: %u\n",
__func__, d->num_inputs, d->num_outputs, d->rclk.num_parents);
return 0;
deinit_info:
ice_dpll_deinit_info(pf);
return ret;
}
/**
* ice_dpll_init_info - prepare pf's dpll information structure
* @pf: board private structure
* @cgu: if cgu is present and controlled by this NIC
*
* Acquire (from HW) and set basic dpll information (on pf->dplls struct).
*
* Return:
* * 0 - success
* * negative - init failure reason
*/
static int ice_dpll_init_info(struct ice_pf *pf, bool cgu)
{
struct ice_aqc_get_cgu_abilities abilities;
struct ice_dpll *de = &pf->dplls.eec;
struct ice_dpll *dp = &pf->dplls.pps;
struct ice_dplls *d = &pf->dplls;
struct ice_hw *hw = &pf->hw;
int ret, alloc_size, i;
d->clock_id = ice_generate_clock_id(pf);
ret = ice_aq_get_cgu_abilities(hw, &abilities);
if (ret) {
dev_err(ice_pf_to_dev(pf),
"err:%d %s failed to read cgu abilities\n",
ret, libie_aq_str(hw->adminq.sq_last_status));
return ret;
}
de->dpll_idx = abilities.eec_dpll_idx;
dp->dpll_idx = abilities.pps_dpll_idx;
d->num_inputs = abilities.num_inputs;
d->num_outputs = abilities.num_outputs;
d->input_phase_adj_max = le32_to_cpu(abilities.max_in_phase_adj) &
ICE_AQC_GET_CGU_MAX_PHASE_ADJ;
d->output_phase_adj_max = le32_to_cpu(abilities.max_out_phase_adj) &
ICE_AQC_GET_CGU_MAX_PHASE_ADJ;
alloc_size = sizeof(*d->inputs) * d->num_inputs;
d->inputs = kzalloc(alloc_size, GFP_KERNEL);
if (!d->inputs)
return -ENOMEM;
alloc_size = sizeof(*de->input_prio) * d->num_inputs;
de->input_prio = kzalloc(alloc_size, GFP_KERNEL);
if (!de->input_prio) {
ret = -ENOMEM;
goto deinit_info;
}
dp->input_prio = kzalloc(alloc_size, GFP_KERNEL);
if (!dp->input_prio) {
ret = -ENOMEM;
goto deinit_info;
}
ret = ice_dpll_init_pins_info(pf, ICE_DPLL_PIN_TYPE_INPUT);
if (ret)
goto deinit_info;
if (cgu) {
alloc_size = sizeof(*d->outputs) * d->num_outputs;
d->outputs = kzalloc(alloc_size, GFP_KERNEL);
if (!d->outputs) {
ret = -ENOMEM;
goto deinit_info;
}
ret = ice_dpll_init_pins_info(pf, ICE_DPLL_PIN_TYPE_OUTPUT);
if (ret)
goto deinit_info;
ret = ice_dpll_init_pins_info(pf, ICE_DPLL_PIN_TYPE_SOFTWARE);
if (ret)
goto deinit_info;
}
ret = ice_get_cgu_rclk_pin_info(&pf->hw, &d->base_rclk_idx,
&pf->dplls.rclk.num_parents);
if (ret)
goto deinit_info;
for (i = 0; i < pf->dplls.rclk.num_parents; i++)
pf->dplls.rclk.parent_idx[i] = d->base_rclk_idx + i;
ret = ice_dpll_init_pins_info(pf, ICE_DPLL_PIN_TYPE_RCLK_INPUT);
if (ret)
goto deinit_info;
de->mode = DPLL_MODE_AUTOMATIC;
dp->mode = DPLL_MODE_AUTOMATIC;
dev_dbg(ice_pf_to_dev(pf),
"%s - success, inputs:%u, outputs:%u rclk-parents:%u\n",
__func__, d->num_inputs, d->num_outputs, d->rclk.num_parents);
return 0;
deinit_info:
dev_err(ice_pf_to_dev(pf),
"%s - fail: d->inputs:%p, de->input_prio:%p, dp->input_prio:%p, d->outputs:%p\n",
__func__, d->inputs, de->input_prio,
dp->input_prio, d->outputs);
ice_dpll_deinit_info(pf);
return ret;
}
/**
* ice_dpll_deinit - Disable the driver/HW support for dpll subsystem
* the dpll device.
* @pf: board private structure
*
* Handles the cleanup work required after dpll initialization, freeing
* resources and unregistering the dpll, pin and all resources used for
* handling them.
*
* Context: Destroys pf->dplls.lock mutex. Call only if ICE_FLAG_DPLL was set.
*/
void ice_dpll_deinit(struct ice_pf *pf)
{
bool cgu = ice_is_feature_supported(pf, ICE_F_CGU);
/* Clear ICE_FLAG_DPLL under the lock so that any new caller of
* ice_txclk_update_and_notify() observes the cleared flag and
* returns early. In-flight callers that already passed the flag
* check hold txclk_notify_rwsem for read across the out-of-lock
* dpll_*_change_ntf() calls; the down_write/up_write barrier
* below waits for them to finish before pins and the TXC DPLL
* device may be freed.
*/
mutex_lock(&pf->dplls.lock);
clear_bit(ICE_FLAG_DPLL, pf->flags);
mutex_unlock(&pf->dplls.lock);
/* Wait for in-flight ice_txclk_update_and_notify() readers */
if (pf->hw.mac_type == ICE_MAC_GENERIC_3K_E825) {
down_write(&pf->dplls.txclk_notify_rwsem);
up_write(&pf->dplls.txclk_notify_rwsem);
}
if (cgu)
ice_dpll_deinit_worker(pf);
if (pf->hw.mac_type == ICE_MAC_GENERIC_3K_E825)
cancel_work_sync(&pf->dplls.txclk_work);
ice_dpll_deinit_pins(pf, cgu);
if (!IS_ERR_OR_NULL(pf->dplls.pps.dpll))
ice_dpll_deinit_dpll(pf, &pf->dplls.pps, cgu);
if (!IS_ERR_OR_NULL(pf->dplls.eec.dpll))
ice_dpll_deinit_dpll(pf, &pf->dplls.eec, cgu);
if (!IS_ERR_OR_NULL(pf->dplls.txc.dpll))
ice_dpll_deinit_dpll(pf, &pf->dplls.txc, false);
ice_dpll_deinit_info(pf);
mutex_destroy(&pf->dplls.lock);
}
/**
* ice_dpll_init_e825 - initialize support for dpll subsystem
* @pf: board private structure
*
* Set up the device dplls, register them and pins connected within Linux dpll
* subsystem. Allow userspace to obtain state of DPLL and handling of DPLL
* configuration requests.
*
* Context: Initializes pf->dplls.lock mutex.
*/
static void ice_dpll_init_e825(struct ice_pf *pf)
{
struct ice_dplls *d = &pf->dplls;
int err;
/* E825 sets ICE_F_PHY_RCLK unconditionally, so DPLL may run without
* PTP. Populate the HW-topology fields the TX-clk path divides by,
* otherwise userspace can trigger div-by-zero in ice_txclk_set_clk().
* When PTP is supported, ice_ptp_init() handles this.
*/
if (!test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags)) {
ice_ptp_init_hw(&pf->hw);
if (pf->hw.lane_num >= 0)
pf->ptp.port.port_num = pf->hw.lane_num;
}
mutex_init(&d->lock);
/* Initialize the txclk worker and its notification rwsem before any
* code path can fail: ice_dpll_deinit() runs unconditionally on
* failure and calls cancel_work_sync() / down_write() on these.
*/
INIT_WORK(&d->txclk_work, ice_dpll_txclk_work);
init_rwsem(&d->txclk_notify_rwsem);
init_completion(&d->dpll_init);
err = ice_dpll_init_info_e825c(pf);
if (err)
goto err_exit;
err = ice_dpll_init_dpll(pf, &pf->dplls.txc, false, DPLL_TYPE_GENERIC);
if (err)
goto deinit_info;
err = ice_dpll_init_pins_e825(pf);
if (err)
goto deinit_txclk;
set_bit(ICE_FLAG_DPLL, pf->flags);
complete_all(&d->dpll_init);
return;
deinit_txclk:
ice_dpll_deinit_dpll(pf, &pf->dplls.txc, false);
deinit_info:
ice_dpll_deinit_info(pf);
err_exit:
mutex_destroy(&d->lock);
dev_warn(ice_pf_to_dev(pf), "DPLLs init failure err:%d\n", err);
}
/**
* ice_dpll_init_e810 - initialize support for dpll subsystem
* @pf: board private structure
*
* Set up the device dplls, register them and pins connected within Linux dpll
* subsystem. Allow userspace to obtain state of DPLL and handling of DPLL
* configuration requests.
*
* Context: Initializes pf->dplls.lock mutex.
*/
static void ice_dpll_init_e810(struct ice_pf *pf)
{
bool cgu = ice_is_feature_supported(pf, ICE_F_CGU);
struct ice_dplls *d = &pf->dplls;
int err = 0;
mutex_init(&d->lock);
err = ice_dpll_init_info(pf, cgu);
if (err)
goto err_exit;
err = ice_dpll_init_dpll(pf, &pf->dplls.eec, cgu, DPLL_TYPE_EEC);
if (err)
goto deinit_info;
err = ice_dpll_init_dpll(pf, &pf->dplls.pps, cgu, DPLL_TYPE_PPS);
if (err)
goto deinit_eec;
err = ice_dpll_init_pins(pf, cgu);
if (err)
goto deinit_pps;
if (cgu) {
err = ice_dpll_init_worker(pf);
if (err)
goto deinit_pins;
}
set_bit(ICE_FLAG_DPLL, pf->flags);
return;
deinit_pins:
ice_dpll_deinit_pins(pf, cgu);
deinit_pps:
ice_dpll_deinit_dpll(pf, &pf->dplls.pps, cgu);
deinit_eec:
ice_dpll_deinit_dpll(pf, &pf->dplls.eec, cgu);
deinit_info:
ice_dpll_deinit_info(pf);
err_exit:
mutex_destroy(&d->lock);
dev_warn(ice_pf_to_dev(pf), "DPLLs init failure err:%d\n", err);
}
void ice_dpll_init(struct ice_pf *pf)
{
switch (pf->hw.mac_type) {
case ICE_MAC_GENERIC_3K_E825:
ice_dpll_init_e825(pf);
break;
default:
ice_dpll_init_e810(pf);
break;
}
}
