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Message-Id: <20230214213003.2117125-2-anthony.l.nguyen@intel.com>
Date: Tue, 14 Feb 2023 13:29:59 -0800
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
edumazet@...gle.com
Cc: Karol Kolacinski <karol.kolacinski@...el.com>,
netdev@...r.kernel.org, anthony.l.nguyen@...el.com,
richardcochran@...il.com, Gurucharan G <gurucharanx.g@...el.com>
Subject: [PATCH net-next 1/5] ice: Add GPIO pin support for E823 products
From: Karol Kolacinski <karol.kolacinski@...el.com>
Add GPIO pin setup for E823, which is only 1PPS input and output.
Signed-off-by: Karol Kolacinski <karol.kolacinski@...el.com>
Tested-by: Gurucharan G <gurucharanx.g@...el.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
drivers/net/ethernet/intel/ice/ice_common.c | 25 ++++++++
drivers/net/ethernet/intel/ice/ice_common.h | 1 +
drivers/net/ethernet/intel/ice/ice_ptp.c | 64 +++++++++++++++++++++
3 files changed, 90 insertions(+)
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index 1b79bb0a4fcd..c2fda4fa4188 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -207,6 +207,31 @@ bool ice_is_e810t(struct ice_hw *hw)
return false;
}
+/**
+ * ice_is_e823
+ * @hw: pointer to the hardware structure
+ *
+ * returns true if the device is E823-L or E823-C based, false if not.
+ */
+bool ice_is_e823(struct ice_hw *hw)
+{
+ switch (hw->device_id) {
+ case ICE_DEV_ID_E823L_BACKPLANE:
+ case ICE_DEV_ID_E823L_SFP:
+ case ICE_DEV_ID_E823L_10G_BASE_T:
+ case ICE_DEV_ID_E823L_1GBE:
+ case ICE_DEV_ID_E823L_QSFP:
+ case ICE_DEV_ID_E823C_BACKPLANE:
+ case ICE_DEV_ID_E823C_QSFP:
+ case ICE_DEV_ID_E823C_SFP:
+ case ICE_DEV_ID_E823C_10G_BASE_T:
+ case ICE_DEV_ID_E823C_SGMII:
+ return true;
+ default:
+ return false;
+ }
+}
+
/**
* ice_clear_pf_cfg - Clear PF configuration
* @hw: pointer to the hardware structure
diff --git a/drivers/net/ethernet/intel/ice/ice_common.h b/drivers/net/ethernet/intel/ice/ice_common.h
index 98aa8d124730..8ba5f935a092 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.h
+++ b/drivers/net/ethernet/intel/ice/ice_common.h
@@ -199,6 +199,7 @@ void
ice_stat_update32(struct ice_hw *hw, u32 reg, bool prev_stat_loaded,
u64 *prev_stat, u64 *cur_stat);
bool ice_is_e810t(struct ice_hw *hw);
+bool ice_is_e823(struct ice_hw *hw);
int
ice_sched_query_elem(struct ice_hw *hw, u32 node_teid,
struct ice_aqc_txsched_elem_data *buf);
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c
index 3abc8db1d065..651dc385ff5d 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp.c
@@ -1769,6 +1769,38 @@ ice_ptp_gpio_enable_e810(struct ptp_clock_info *info,
return err;
}
+/**
+ * ice_ptp_gpio_enable_e823 - 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_e823(struct ptp_clock_info *info,
+ struct ptp_clock_request *rq, int on)
+{
+ struct ice_pf *pf = ptp_info_to_pf(info);
+ struct ice_perout_channel clk_cfg = {0};
+ int err;
+
+ switch (rq->type) {
+ case PTP_CLK_REQ_PPS:
+ clk_cfg.gpio_pin = PPS_PIN_INDEX;
+ clk_cfg.period = NSEC_PER_SEC;
+ clk_cfg.ena = !!on;
+
+ err = ice_ptp_cfg_clkout(pf, PPS_CLK_GEN_CHAN, &clk_cfg, true);
+ break;
+ case PTP_CLK_REQ_EXTTS:
+ err = ice_ptp_cfg_extts(pf, !!on, rq->extts.index,
+ TIME_SYNC_PIN_INDEX, rq->extts.flags);
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return err;
+}
+
/**
* ice_ptp_gettimex64 - Get the time of the clock
* @info: the driver's PTP info structure
@@ -2220,6 +2252,19 @@ ice_ptp_setup_pins_e810(struct ice_pf *pf, struct ptp_clock_info *info)
}
}
+/**
+ * ice_ptp_setup_pins_e823 - Setup PTP pins in sysfs
+ * @pf: pointer to the PF instance
+ * @info: PTP clock capabilities
+ */
+static void
+ice_ptp_setup_pins_e823(struct ice_pf *pf, struct ptp_clock_info *info)
+{
+ info->pps = 1;
+ info->n_per_out = 0;
+ info->n_ext_ts = 1;
+}
+
/**
* ice_ptp_set_funcs_e822 - Set specialized functions for E822 support
* @pf: Board private structure
@@ -2257,6 +2302,23 @@ ice_ptp_set_funcs_e810(struct ice_pf *pf, struct ptp_clock_info *info)
ice_ptp_setup_pins_e810(pf, info);
}
+/**
+ * ice_ptp_set_funcs_e823 - Set specialized functions for E823 support
+ * @pf: Board private structure
+ * @info: PTP info to fill
+ *
+ * Assign functions to the PTP capabiltiies structure for E823 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 e823
+ * devices.
+ */
+static void
+ice_ptp_set_funcs_e823(struct ice_pf *pf, struct ptp_clock_info *info)
+{
+ info->enable = ice_ptp_gpio_enable_e823;
+ ice_ptp_setup_pins_e823(pf, info);
+}
+
/**
* ice_ptp_set_caps - Set PTP capabilities
* @pf: Board private structure
@@ -2277,6 +2339,8 @@ static void ice_ptp_set_caps(struct ice_pf *pf)
if (ice_is_e810(&pf->hw))
ice_ptp_set_funcs_e810(pf, info);
+ else if (ice_is_e823(&pf->hw))
+ ice_ptp_set_funcs_e823(pf, info);
else
ice_ptp_set_funcs_e822(pf, info);
}
--
2.38.1
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