diff options
| author | Karol Kolacinski <[email protected]> | 2024-08-30 11:07:19 +0000 |
|---|---|---|
| committer | Tony Nguyen <[email protected]> | 2024-10-01 18:11:38 +0000 |
| commit | e4291b64e11889c73fa9c75e74115721758a3fb4 (patch) | |
| tree | 5feafc8950ab2a498411b2ba8df3129fb6bafe9d /drivers/net/ethernet/intel/ice/ice_ptp.c | |
| parent | ice: Add SDPs support for E825C (diff) | |
| download | kernel-e4291b64e11889c73fa9c75e74115721758a3fb4.tar.gz kernel-e4291b64e11889c73fa9c75e74115721758a3fb4.zip | |
ice: Align E810T GPIO to other products
Instead of having separate PTP GPIO implementation for E810T, use
existing one from all other products.
Reviewed-by: Arkadiusz Kubalewski <[email protected]>
Signed-off-by: Karol Kolacinski <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Tested-by: Pucha Himasekhar Reddy <[email protected]> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <[email protected]>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_ptp.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_ptp.c | 460 |
1 files changed, 112 insertions, 348 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index 9879a6f2150d..09c95ffc4693 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -39,15 +39,21 @@ static const struct ice_ptp_pin_desc ice_pin_desc_e810[] = { { ONE_PPS, { -1, 5 }}, }; -#define E810_OUT_PROP_DELAY_NS 1 +static const char ice_pin_names_e810t[][64] = { + "GNSS", + "SMA1", + "U.FL1", + "SMA2", + "U.FL2", +}; -static const struct ptp_pin_desc ice_pin_desc_e810t[] = { - /* name idx func chan */ - { "GNSS", GNSS, PTP_PF_EXTTS, 0, { 0, } }, - { "SMA1", SMA1, PTP_PF_NONE, 1, { 0, } }, - { "U.FL1", UFL1, PTP_PF_NONE, 1, { 0, } }, - { "SMA2", SMA2, PTP_PF_NONE, 2, { 0, } }, - { "U.FL2", UFL2, PTP_PF_NONE, 2, { 0, } }, +static const struct ice_ptp_pin_desc ice_pin_desc_e810t[] = { + /* name, gpio */ + { GNSS, { 1, -1 }}, + { SMA1, { 1, 0 }}, + { UFL1, { -1, 0 }}, + { SMA2, { 3, 2 }}, + { UFL2, { 3, -1 }}, }; /** @@ -74,240 +80,98 @@ static int ice_ptp_find_pin_idx(struct ice_pf *pf, enum ptp_pin_function func, } /** - * ice_get_sma_config_e810t - * @hw: pointer to the hw struct - * @ptp_pins: pointer to the ptp_pin_desc struture - * - * Read the configuration of the SMA control logic and put it into the - * ptp_pin_desc structure + * ice_ptp_update_sma_data - update SMA pins data according to pins setup + * @pf: Board private structure + * @sma_pins: parsed SMA pins status + * @data: SMA data to update */ -static int -ice_get_sma_config_e810t(struct ice_hw *hw, struct ptp_pin_desc *ptp_pins) +static void ice_ptp_update_sma_data(struct ice_pf *pf, unsigned int sma_pins[], + u8 *data) { - u8 data, i; - int status; - - /* Read initial pin state */ - status = ice_read_sma_ctrl_e810t(hw, &data); - if (status) - return status; + const char *state1, *state2; - /* initialize with defaults */ - for (i = 0; i < NUM_PTP_PINS_E810T; i++) { - strscpy(ptp_pins[i].name, ice_pin_desc_e810t[i].name, - sizeof(ptp_pins[i].name)); - ptp_pins[i].index = ice_pin_desc_e810t[i].index; - ptp_pins[i].func = ice_pin_desc_e810t[i].func; - ptp_pins[i].chan = ice_pin_desc_e810t[i].chan; - } - - /* Parse SMA1/UFL1 */ - switch (data & ICE_SMA1_MASK_E810T) { - case ICE_SMA1_MASK_E810T: - default: - ptp_pins[SMA1].func = PTP_PF_NONE; - ptp_pins[UFL1].func = PTP_PF_NONE; - break; - case ICE_SMA1_DIR_EN_E810T: - ptp_pins[SMA1].func = PTP_PF_PEROUT; - ptp_pins[UFL1].func = PTP_PF_NONE; - break; - case ICE_SMA1_TX_EN_E810T: - ptp_pins[SMA1].func = PTP_PF_EXTTS; - ptp_pins[UFL1].func = PTP_PF_NONE; - break; - case 0: - ptp_pins[SMA1].func = PTP_PF_EXTTS; - ptp_pins[UFL1].func = PTP_PF_PEROUT; - break; + /* Set the right state based on the desired configuration. + * When bit is set, functionality is disabled. + */ + *data &= ~ICE_ALL_SMA_MASK; + if (!sma_pins[UFL1 - 1]) { + if (sma_pins[SMA1 - 1] == PTP_PF_EXTTS) { + state1 = "SMA1 Rx, U.FL1 disabled"; + *data |= ICE_SMA1_TX_EN; + } else if (sma_pins[SMA1 - 1] == PTP_PF_PEROUT) { + state1 = "SMA1 Tx U.FL1 disabled"; + *data |= ICE_SMA1_DIR_EN; + } else { + state1 = "SMA1 disabled, U.FL1 disabled"; + *data |= ICE_SMA1_MASK; + } + } else { + /* U.FL1 Tx will always enable SMA1 Rx */ + state1 = "SMA1 Rx, U.FL1 Tx"; } - /* Parse SMA2/UFL2 */ - switch (data & ICE_SMA2_MASK_E810T) { - case ICE_SMA2_MASK_E810T: - default: - ptp_pins[SMA2].func = PTP_PF_NONE; - ptp_pins[UFL2].func = PTP_PF_NONE; - break; - case (ICE_SMA2_TX_EN_E810T | ICE_SMA2_UFL2_RX_DIS_E810T): - ptp_pins[SMA2].func = PTP_PF_EXTTS; - ptp_pins[UFL2].func = PTP_PF_NONE; - break; - case (ICE_SMA2_DIR_EN_E810T | ICE_SMA2_UFL2_RX_DIS_E810T): - ptp_pins[SMA2].func = PTP_PF_PEROUT; - ptp_pins[UFL2].func = PTP_PF_NONE; - break; - case (ICE_SMA2_DIR_EN_E810T | ICE_SMA2_TX_EN_E810T): - ptp_pins[SMA2].func = PTP_PF_NONE; - ptp_pins[UFL2].func = PTP_PF_EXTTS; - break; - case ICE_SMA2_DIR_EN_E810T: - ptp_pins[SMA2].func = PTP_PF_PEROUT; - ptp_pins[UFL2].func = PTP_PF_EXTTS; - break; + if (!sma_pins[UFL2 - 1]) { + if (sma_pins[SMA2 - 1] == PTP_PF_EXTTS) { + state2 = "SMA2 Rx, U.FL2 disabled"; + *data |= ICE_SMA2_TX_EN | ICE_SMA2_UFL2_RX_DIS; + } else if (sma_pins[SMA2 - 1] == PTP_PF_PEROUT) { + state2 = "SMA2 Tx, U.FL2 disabled"; + *data |= ICE_SMA2_DIR_EN | ICE_SMA2_UFL2_RX_DIS; + } else { + state2 = "SMA2 disabled, U.FL2 disabled"; + *data |= ICE_SMA2_MASK; + } + } else { + if (!sma_pins[SMA2 - 1]) { + state2 = "SMA2 disabled, U.FL2 Rx"; + *data |= ICE_SMA2_DIR_EN | ICE_SMA2_TX_EN; + } else { + state2 = "SMA2 Tx, U.FL2 Rx"; + *data |= ICE_SMA2_DIR_EN; + } } - return 0; + dev_dbg(ice_pf_to_dev(pf), "%s, %s\n", state1, state2); } /** - * ice_ptp_set_sma_config_e810t - * @hw: pointer to the hw struct - * @ptp_pins: pointer to the ptp_pin_desc struture + * ice_ptp_set_sma_cfg - set the configuration of the SMA control logic + * @pf: Board private structure * - * Set the configuration of the SMA control logic based on the configuration in - * num_pins parameter + * Return: 0 on success, negative error code otherwise */ -static int -ice_ptp_set_sma_config_e810t(struct ice_hw *hw, - const struct ptp_pin_desc *ptp_pins) +static int ice_ptp_set_sma_cfg(struct ice_pf *pf) { - int status; + const struct ice_ptp_pin_desc *ice_pins = pf->ptp.ice_pin_desc; + struct ptp_pin_desc *pins = pf->ptp.pin_desc; + unsigned int sma_pins[ICE_SMA_PINS_NUM] = {}; + int err; u8 data; - /* SMA1 and UFL1 cannot be set to TX at the same time */ - if (ptp_pins[SMA1].func == PTP_PF_PEROUT && - ptp_pins[UFL1].func == PTP_PF_PEROUT) - return -EINVAL; - - /* SMA2 and UFL2 cannot be set to RX at the same time */ - if (ptp_pins[SMA2].func == PTP_PF_EXTTS && - ptp_pins[UFL2].func == PTP_PF_EXTTS) - return -EINVAL; - /* Read initial pin state value */ - status = ice_read_sma_ctrl_e810t(hw, &data); - if (status) - return status; - - /* Set the right sate based on the desired configuration */ - data &= ~ICE_SMA1_MASK_E810T; - if (ptp_pins[SMA1].func == PTP_PF_NONE && - ptp_pins[UFL1].func == PTP_PF_NONE) { - dev_info(ice_hw_to_dev(hw), "SMA1 + U.FL1 disabled"); - data |= ICE_SMA1_MASK_E810T; - } else if (ptp_pins[SMA1].func == PTP_PF_EXTTS && - ptp_pins[UFL1].func == PTP_PF_NONE) { - dev_info(ice_hw_to_dev(hw), "SMA1 RX"); - data |= ICE_SMA1_TX_EN_E810T; - } else if (ptp_pins[SMA1].func == PTP_PF_NONE && - ptp_pins[UFL1].func == PTP_PF_PEROUT) { - /* U.FL 1 TX will always enable SMA 1 RX */ - dev_info(ice_hw_to_dev(hw), "SMA1 RX + U.FL1 TX"); - } else if (ptp_pins[SMA1].func == PTP_PF_EXTTS && - ptp_pins[UFL1].func == PTP_PF_PEROUT) { - dev_info(ice_hw_to_dev(hw), "SMA1 RX + U.FL1 TX"); - } else if (ptp_pins[SMA1].func == PTP_PF_PEROUT && - ptp_pins[UFL1].func == PTP_PF_NONE) { - dev_info(ice_hw_to_dev(hw), "SMA1 TX"); - data |= ICE_SMA1_DIR_EN_E810T; - } - - data &= ~ICE_SMA2_MASK_E810T; - if (ptp_pins[SMA2].func == PTP_PF_NONE && - ptp_pins[UFL2].func == PTP_PF_NONE) { - dev_info(ice_hw_to_dev(hw), "SMA2 + U.FL2 disabled"); - data |= ICE_SMA2_MASK_E810T; - } else if (ptp_pins[SMA2].func == PTP_PF_EXTTS && - ptp_pins[UFL2].func == PTP_PF_NONE) { - dev_info(ice_hw_to_dev(hw), "SMA2 RX"); - data |= (ICE_SMA2_TX_EN_E810T | - ICE_SMA2_UFL2_RX_DIS_E810T); - } else if (ptp_pins[SMA2].func == PTP_PF_NONE && - ptp_pins[UFL2].func == PTP_PF_EXTTS) { - dev_info(ice_hw_to_dev(hw), "UFL2 RX"); - data |= (ICE_SMA2_DIR_EN_E810T | ICE_SMA2_TX_EN_E810T); - } else if (ptp_pins[SMA2].func == PTP_PF_PEROUT && - ptp_pins[UFL2].func == PTP_PF_NONE) { - dev_info(ice_hw_to_dev(hw), "SMA2 TX"); - data |= (ICE_SMA2_DIR_EN_E810T | - ICE_SMA2_UFL2_RX_DIS_E810T); - } else if (ptp_pins[SMA2].func == PTP_PF_PEROUT && - ptp_pins[UFL2].func == PTP_PF_EXTTS) { - dev_info(ice_hw_to_dev(hw), "SMA2 TX + U.FL2 RX"); - data |= ICE_SMA2_DIR_EN_E810T; - } - - return ice_write_sma_ctrl_e810t(hw, data); -} - -/** - * ice_ptp_set_sma_e810t - * @info: the driver's PTP info structure - * @pin: pin index in kernel structure - * @func: Pin function to be set (PTP_PF_NONE, PTP_PF_EXTTS or PTP_PF_PEROUT) - * - * Set the configuration of a single SMA pin - */ -static int -ice_ptp_set_sma_e810t(struct ptp_clock_info *info, unsigned int pin, - enum ptp_pin_function func) -{ - struct ptp_pin_desc ptp_pins[NUM_PTP_PINS_E810T]; - struct ice_pf *pf = ptp_info_to_pf(info); - struct ice_hw *hw = &pf->hw; - int err; - - if (pin < SMA1 || func > PTP_PF_PEROUT) - return -EOPNOTSUPP; - - err = ice_get_sma_config_e810t(hw, ptp_pins); + err = ice_read_sma_ctrl(&pf->hw, &data); if (err) return err; - /* Disable the same function on the other pin sharing the channel */ - if (pin == SMA1 && ptp_pins[UFL1].func == func) - ptp_pins[UFL1].func = PTP_PF_NONE; - if (pin == UFL1 && ptp_pins[SMA1].func == func) - ptp_pins[SMA1].func = PTP_PF_NONE; - - if (pin == SMA2 && ptp_pins[UFL2].func == func) - ptp_pins[UFL2].func = PTP_PF_NONE; - if (pin == UFL2 && ptp_pins[SMA2].func == func) - ptp_pins[SMA2].func = PTP_PF_NONE; + /* Get SMA/U.FL pins states */ + for (int i = 0; i < pf->ptp.info.n_pins; i++) + if (pins[i].func) { + int name_idx = ice_pins[i].name_idx; - /* Set up new pin function in the temp table */ - ptp_pins[pin].func = func; - - return ice_ptp_set_sma_config_e810t(hw, ptp_pins); -} - -/** - * ice_verify_pin_e810t - * @info: the driver's PTP info structure - * @pin: Pin index - * @func: Assigned function - * @chan: Assigned channel - * - * Verify if pin supports requested pin function. If the Check pins consistency. - * Reconfigure the SMA logic attached to the given pin to enable its - * desired functionality - */ -static int -ice_verify_pin_e810t(struct ptp_clock_info *info, unsigned int pin, - enum ptp_pin_function func, unsigned int chan) -{ - /* Don't allow channel reassignment */ - if (chan != ice_pin_desc_e810t[pin].chan) - return -EOPNOTSUPP; - - /* Check if functions are properly assigned */ - switch (func) { - case PTP_PF_NONE: - break; - case PTP_PF_EXTTS: - if (pin == UFL1) - return -EOPNOTSUPP; - break; - case PTP_PF_PEROUT: - if (pin == UFL2 || pin == GNSS) - return -EOPNOTSUPP; - break; - case PTP_PF_PHYSYNC: - return -EOPNOTSUPP; - } + switch (name_idx) { + case SMA1: + case UFL1: + case SMA2: + case UFL2: + sma_pins[name_idx - 1] = pins[i].func; + break; + default: + continue; + } + } - return ice_ptp_set_sma_e810t(info, pin, func); + ice_ptp_update_sma_data(pf, sma_pins, &data); + return ice_write_sma_ctrl(&pf->hw, data); } /** @@ -1957,81 +1821,6 @@ static void ice_ptp_enable_all_clkout(struct ice_pf *pf) } /** - * ice_ptp_gpio_enable_e810t - Enable/disable ancillary features of PHC - * @info: the driver's PTP info structure - * @rq: The requested feature to change - * @on: Enable/disable flag - */ -static int -ice_ptp_gpio_enable_e810t(struct ptp_clock_info *info, - struct ptp_clock_request *rq, int on) -{ - struct ice_pf *pf = ptp_info_to_pf(info); - bool sma_pres = false; - unsigned int chan; - u32 gpio_pin; - - if (ice_is_feature_supported(pf, ICE_F_SMA_CTRL)) - sma_pres = true; - - switch (rq->type) { - case PTP_CLK_REQ_PEROUT: - { - struct ice_perout_channel clk_cfg = {}; - - chan = rq->perout.index; - if (sma_pres) { - if (chan == ice_pin_desc_e810t[SMA1].chan) - clk_cfg.gpio_pin = GPIO_20; - else if (chan == ice_pin_desc_e810t[SMA2].chan) - clk_cfg.gpio_pin = GPIO_22; - else - return -1; - } else { - if (chan == 0) - clk_cfg.gpio_pin = GPIO_20; - else - clk_cfg.gpio_pin = GPIO_22; - } - - clk_cfg.flags = rq->perout.flags; - clk_cfg.period = rq->perout.period.sec * NSEC_PER_SEC + - rq->perout.period.nsec; - clk_cfg.start_time = rq->perout.start.sec * NSEC_PER_SEC + - rq->perout.start.nsec; - clk_cfg.ena = !!on; - - return ice_ptp_cfg_clkout(pf, chan, &clk_cfg, true); - } - case PTP_CLK_REQ_EXTTS: - { - struct ice_extts_channel extts_cfg = {}; - - chan = rq->extts.index; - if (sma_pres) { - if (chan < ice_pin_desc_e810t[SMA2].chan) - gpio_pin = GPIO_21; - else - gpio_pin = GPIO_23; - } else { - if (chan == 0) - gpio_pin = GPIO_21; - else - gpio_pin = GPIO_23; - } - - extts_cfg.flags = rq->extts.flags; - extts_cfg.gpio_pin = gpio_pin; - extts_cfg.ena = !!on; - - return ice_ptp_cfg_extts(pf, chan, &extts_cfg, true); - } - default: - return -EOPNOTSUPP; - } -} - -/** * ice_verify_pin - verify if pin supports requested pin function * @info: the driver's PTP info structure * @pin: Pin index @@ -2521,8 +2310,12 @@ static void ice_ptp_setup_pin_cfg(struct ice_pf *pf) struct ptp_pin_desc *pin = &pf->ptp.pin_desc[i]; const char *name = NULL; - name = ice_pin_names[desc->name_idx]; - strscpy(pin->name, name, sizeof(pin->name)); + if (!ice_is_feature_supported(pf, ICE_F_SMA_CTRL)) + name = ice_pin_names[desc->name_idx]; + else + name = ice_pin_names_e810t[desc->name_idx]; + if (name) + strscpy(pin->name, name, sizeof(pin->name)); pin->index = i; } @@ -2531,20 +2324,17 @@ static void ice_ptp_setup_pin_cfg(struct ice_pf *pf) } /** - * ice_ptp_disable_sma_pins_e810t - Disable E810-T SMA pins + * ice_ptp_disable_sma_pins - Disable SMA pins * @pf: pointer to the PF structure - * @info: PTP clock info structure * * Disable the OS access to the SMA pins. Called to clear out the OS - * indications of pin support when we fail to setup the E810-T SMA control - * register. + * indications of pin support when we fail to setup the SMA control register. */ -static void -ice_ptp_disable_sma_pins_e810t(struct ice_pf *pf, struct ptp_clock_info *info) +static void ice_ptp_disable_sma_pins(struct ice_pf *pf) { - struct device *dev = ice_pf_to_dev(pf); + struct ptp_clock_info *info = &pf->ptp.info; - dev_warn(dev, "Failed to configure E810-T SMA pin control\n"); + dev_warn(ice_pf_to_dev(pf), "Failed to configure SMA pin control\n"); info->enable = NULL; info->verify = NULL; @@ -2554,46 +2344,23 @@ ice_ptp_disable_sma_pins_e810t(struct ice_pf *pf, struct ptp_clock_info *info) } /** - * ice_ptp_setup_sma_pins_e810t - Setup the SMA pins - * @pf: pointer to the PF structure - * @info: PTP clock info structure - * - * Finish setting up the SMA pins by allocating pin_config, and setting it up - * according to the current status of the SMA. On failure, disable all of the - * extended SMA pin support. - */ -static void -ice_ptp_setup_sma_pins_e810t(struct ice_pf *pf, struct ptp_clock_info *info) -{ - struct device *dev = ice_pf_to_dev(pf); - int err; - - /* Allocate memory for kernel pins interface */ - info->pin_config = devm_kcalloc(dev, info->n_pins, - sizeof(*info->pin_config), GFP_KERNEL); - if (!info->pin_config) { - ice_ptp_disable_sma_pins_e810t(pf, info); - return; - } - - /* Read current SMA status */ - err = ice_get_sma_config_e810t(&pf->hw, info->pin_config); - if (err) - ice_ptp_disable_sma_pins_e810t(pf, info); -} - -/** * ice_ptp_setup_pins_e810t - Setup PTP pins in sysfs * @pf: pointer to the PF instance */ static void ice_ptp_setup_pins_e810t(struct ice_pf *pf) { - pf->ptp.info.enable = ice_ptp_gpio_enable_e810t; - pf->ptp.info.n_pins = NUM_PTP_PINS_E810T; - pf->ptp.info.verify = ice_verify_pin_e810t; + struct ice_ptp *ptp = &pf->ptp; + int err; - /* Complete setup of the SMA pins */ - ice_ptp_setup_sma_pins_e810t(pf, &pf->ptp.info); + ptp->ice_pin_desc = ice_pin_desc_e810t; + ptp->info.n_pins = ICE_PIN_DESC_ARR_LEN(ice_pin_desc_e810t); + ptp->info.pin_config = ptp->pin_desc; + ice_ptp_setup_pin_cfg(pf); + + /* Clear SMA status */ + err = ice_ptp_set_sma_cfg(pf); + if (err) + ice_ptp_disable_sma_pins(pf); } /** @@ -2613,9 +2380,6 @@ static void ice_ptp_set_funcs_e82x(struct ice_pf *pf) pf->ptp.info.getcrosststamp = ice_ptp_getcrosststamp_e82x; #endif /* CONFIG_ICE_HWTS */ - pf->ptp.info.enable = ice_ptp_gpio_enable; - pf->ptp.info.verify = ice_verify_pin; - if (ice_is_e825c(&pf->hw)) { pf->ptp.ice_pin_desc = ice_pin_desc_e825c; pf->ptp.info.n_pins = ICE_PIN_DESC_ARR_LEN(ice_pin_desc_e825c); @@ -2629,15 +2393,13 @@ static void ice_ptp_set_funcs_e82x(struct ice_pf *pf) /** * ice_ptp_set_funcs_e810 - Set specialized functions for E810 support * @pf: Board private structure - * @info: PTP info to fill * * Assign functions to the PTP capabiltiies structure for E810 devices. * Functions which operate across all device families should be set directly - * in ice_ptp_set_caps. Only add functions here which are distinct for e810 + * in ice_ptp_set_caps. Only add functions here which are distinct for E810 * devices. */ -static void -ice_ptp_set_funcs_e810(struct ice_pf *pf, struct ptp_clock_info *info) +static void ice_ptp_set_funcs_e810(struct ice_pf *pf) { if (ice_is_e810t(&pf->hw) && ice_is_feature_supported(pf, ICE_F_SMA_CTRL)) { @@ -2669,9 +2431,11 @@ static void ice_ptp_set_caps(struct ice_pf *pf) info->settime64 = ice_ptp_settime64; info->n_per_out = GLTSYN_TGT_H_IDX_MAX; info->n_ext_ts = GLTSYN_EVNT_H_IDX_MAX; + info->enable = ice_ptp_gpio_enable; + info->verify = ice_verify_pin; if (ice_is_e810(&pf->hw)) - ice_ptp_set_funcs_e810(pf, info); + ice_ptp_set_funcs_e810(pf); else ice_ptp_set_funcs_e82x(pf); } |
