Thu, Aug 08, 2024 at 01:20:13PM CEST, arkadiusz.kubalewski@xxxxxxxxx wrote:
>Allow the user to get and set configuration of Embedded SYNC feature
>on the ice driver dpll pins.
>
>Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@xxxxxxxxx>
>Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@xxxxxxxxx>
>---
> drivers/net/ethernet/intel/ice/ice_dpll.c | 241 +++++++++++++++++++++-
> drivers/net/ethernet/intel/ice/ice_dpll.h | 1 +
> 2 files changed, 239 insertions(+), 3 deletions(-)
>
>diff --git a/drivers/net/ethernet/intel/ice/ice_dpll.c b/drivers/net/ethernet/intel/ice/ice_dpll.c
>index e92be6f130a3..0664bbe98769 100644
>--- a/drivers/net/ethernet/intel/ice/ice_dpll.c
>+++ b/drivers/net/ethernet/intel/ice/ice_dpll.c
>@@ -394,8 +394,8 @@ ice_dpll_pin_state_update(struct ice_pf *pf, struct ice_dpll_pin *pin,
>
> switch (pin_type) {
> case ICE_DPLL_PIN_TYPE_INPUT:
>- ret = ice_aq_get_input_pin_cfg(&pf->hw, pin->idx, NULL, NULL,
>- NULL, &pin->flags[0],
>+ 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;
>@@ -430,7 +430,7 @@ ice_dpll_pin_state_update(struct ice_pf *pf, struct ice_dpll_pin *pin,
> goto err;
>
> parent &= ICE_AQC_GET_CGU_OUT_CFG_DPLL_SRC_SEL;
>- if (ICE_AQC_SET_CGU_OUT_CFG_OUT_EN & pin->flags[0]) {
>+ 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 :
>@@ -1098,6 +1098,237 @@ ice_dpll_phase_offset_get(const struct dpll_pin *pin, void *pin_priv,
> return 0;
> }
>
>+/**
>+ * ice_dpll_output_e_sync_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
>+ * @e_sync_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_e_sync_set(const struct dpll_pin *pin, void *pin_priv,
>+ const struct dpll_device *dpll, void *dpll_priv,
>+ u64 e_sync_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 (e_sync_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);
>+ if (ret)
>+ NL_SET_ERR_MSG_FMT(extack,
>+ "err:%d %s failed to set e-sync freq\n",
Odd. Ret is pass all the way up to the userspace. Putting it to message
does not make any sense to me.
>+ ret,
>+ ice_aq_str(pf->hw.adminq.sq_last_status));
>+ return ret;
>+}
>+
>+/**
>+ * ice_dpll_output_e_sync_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
>+ * @e_sync_freq: on success holds embedded sync frequency of a pin
>+ * @e_sync_range: on success holds embedded sync frequency range for a pin
>+ * @pulse: on success holds embedded sync pulse type
>+ * @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_e_sync_get(const struct dpll_pin *pin, void *pin_priv,
>+ const struct dpll_device *dpll, void *dpll_priv,
>+ u64 *e_sync_freq,
>+ struct dpll_pin_frequency *e_sync_range,
>+ enum dpll_pin_e_sync_pulse *pulse,
>+ 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)) {
>+ mutex_unlock(&pf->dplls.lock);
>+ return -EOPNOTSUPP;
>+ }
>+ *pulse = DPLL_PIN_E_SYNC_PULSE_NONE;
>+ e_sync_range->min = 0;
>+ if (p->freq == DPLL_PIN_FREQUENCY_10_MHZ) {
>+ e_sync_range->max = DPLL_PIN_FREQUENCY_1_HZ;
>+ if (p->flags[0] & ICE_AQC_GET_CGU_OUT_CFG_ESYNC_EN) {
>+ *e_sync_freq = DPLL_PIN_FREQUENCY_1_HZ;
>+ *pulse = DPLL_PIN_E_SYNC_PULSE_25_75;
>+ } else {
>+ *e_sync_freq = 0;
>+ }
>+ } else {
>+ e_sync_range->max = 0;
>+ *e_sync_freq = 0;
>+ }
>+ mutex_unlock(&pf->dplls.lock);
>+ return 0;
>+}
>+
>+/**
>+ * ice_dpll_input_e_sync_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
>+ * @e_sync_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_e_sync_set(const struct dpll_pin *pin, void *pin_priv,
>+ const struct dpll_device *dpll, void *dpll_priv,
>+ u64 e_sync_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 (e_sync_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);
>+ if (ret)
>+ NL_SET_ERR_MSG_FMT(extack,
>+ "err:%d %s failed to set e-sync freq\n",
Same here.
>+ ret,
>+ ice_aq_str(pf->hw.adminq.sq_last_status));
>+
>+ return ret;
>+}
>+
>+/**
>+ * ice_dpll_input_e_sync_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
>+ * @e_sync_freq: on success holds embedded sync frequency of a pin
>+ * @e_sync_range: on success holds embedded sync frequency range for a pin
>+ * @pulse: on success holds embedded sync pulse type
>+ * @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_e_sync_get(const struct dpll_pin *pin, void *pin_priv,
>+ const struct dpll_device *dpll, void *dpll_priv,
>+ u64 *e_sync_freq,
>+ struct dpll_pin_frequency *e_sync_range,
>+ enum dpll_pin_e_sync_pulse *pulse,
>+ 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)) {
>+ mutex_unlock(&pf->dplls.lock);
>+ return -EOPNOTSUPP;
>+ }
>+ *pulse = DPLL_PIN_E_SYNC_PULSE_NONE;
>+ e_sync_range->min = 0;
>+ if (p->freq == DPLL_PIN_FREQUENCY_10_MHZ) {
>+ e_sync_range->max = DPLL_PIN_FREQUENCY_1_HZ;
>+ if (p->flags[0] & ICE_AQC_GET_CGU_IN_CFG_FLG2_ESYNC_EN) {
>+ *e_sync_freq = DPLL_PIN_FREQUENCY_1_HZ;
>+ *pulse = DPLL_PIN_E_SYNC_PULSE_25_75;
>+ } else {
>+ *e_sync_freq = 0;
>+ }
>+ } else {
>+ e_sync_range->max = 0;
>+ *e_sync_freq = 0;
>+ }
>+ mutex_unlock(&pf->dplls.lock);
>+ return 0;
>+}
>+
> /**
> * ice_dpll_rclk_state_on_pin_set - set a state on rclk pin
> * @pin: pointer to a pin
>@@ -1222,6 +1453,8 @@ static const struct dpll_pin_ops ice_dpll_input_ops = {
> .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,
>+ .e_sync_set = ice_dpll_input_e_sync_set,
>+ .e_sync_get = ice_dpll_input_e_sync_get,
> };
>
> static const struct dpll_pin_ops ice_dpll_output_ops = {
>@@ -1232,6 +1465,8 @@ static const struct dpll_pin_ops ice_dpll_output_ops = {
> .direction_get = ice_dpll_output_direction,
> .phase_adjust_get = ice_dpll_pin_phase_adjust_get,
> .phase_adjust_set = ice_dpll_output_phase_adjust_set,
>+ .e_sync_set = ice_dpll_output_e_sync_set,
>+ .e_sync_get = ice_dpll_output_e_sync_get,
> };
>
> static const struct dpll_device_ops ice_dpll_ops = {
>diff --git a/drivers/net/ethernet/intel/ice/ice_dpll.h b/drivers/net/ethernet/intel/ice/ice_dpll.h
>index 93172e93995b..c320f1bf7d6d 100644
>--- a/drivers/net/ethernet/intel/ice/ice_dpll.h
>+++ b/drivers/net/ethernet/intel/ice/ice_dpll.h
>@@ -31,6 +31,7 @@ struct ice_dpll_pin {
> struct dpll_pin_properties prop;
> u32 freq;
> s32 phase_adjust;
>+ u8 status;
> };
>
> /** ice_dpll - store info required for DPLL control
>--
>2.38.1
>
