netdev - [PATCH net-next 13/13] ice: check netlist before enabling ICE_F

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Date: Mon, 11 Sep 2023 11:03:14 -0700
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	netdev@...r.kernel.org
Cc: Jacob Keller <jacob.e.keller@...el.com>,
	anthony.l.nguyen@...el.com,
	richardcochran@...il.com,
	Sunitha Mekala <sunithax.d.mekala@...el.com>
Subject: [PATCH net-next 13/13] ice: check netlist before enabling ICE_F_GNSS

From: Jacob Keller <jacob.e.keller@...el.com>

Similar to the change made for ICE_F_SMA_CTRL, check the netlist before
enabling support for ICE_F_GNSS. This ensures that the driver only enables
the GNSS feature on devices which actually have the feature enabled in the
firmware device configuration.

Signed-off-by: Jacob Keller <jacob.e.keller@...el.com>
Tested-by: Sunitha Mekala <sunithax.d.mekala@...el.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_adminq_cmd.h |  2 ++
 drivers/net/ethernet/intel/ice/ice_common.c     | 15 +++++++++++++++
 drivers/net/ethernet/intel/ice/ice_common.h     |  1 +
 drivers/net/ethernet/intel/ice/ice_gnss.c       |  3 +++
 drivers/net/ethernet/intel/ice/ice_lib.c        |  6 ++----
 5 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
index 674be406cc7a..293c1d664772 100644
--- a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
+++ b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
@@ -1368,6 +1368,7 @@ struct ice_aqc_link_topo_params {
 #define ICE_AQC_LINK_TOPO_NODE_TYPE_MEZZ	7
 #define ICE_AQC_LINK_TOPO_NODE_TYPE_ID_EEPROM	8
 #define ICE_AQC_LINK_TOPO_NODE_TYPE_CLK_MUX	10
+#define ICE_AQC_LINK_TOPO_NODE_TYPE_GPS		11
 #define ICE_AQC_LINK_TOPO_NODE_CTX_S		4
 #define ICE_AQC_LINK_TOPO_NODE_CTX_M		\
 				(0xF << ICE_AQC_LINK_TOPO_NODE_CTX_S)
@@ -1407,6 +1408,7 @@ struct ice_aqc_get_link_topo {
 #define ICE_AQC_GET_LINK_TOPO_NODE_NR_PCA9575			0x21
 #define ICE_AQC_GET_LINK_TOPO_NODE_NR_C827			0x31
 #define ICE_AQC_GET_LINK_TOPO_NODE_NR_GEN_CLK_MUX		0x47
+#define ICE_AQC_GET_LINK_TOPO_NODE_NR_GEN_GPS			0x48
 	u8 rsvd[9];
 };
 
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index e38feb61492c..57fc63e2fa8a 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -2777,6 +2777,21 @@ bool ice_is_clock_mux_in_netlist(struct ice_hw *hw)
 	return true;
 }
 
+/**
+ * ice_is_gps_in_netlist
+ * @hw: pointer to the hw struct
+ *
+ * Check if the GPS generic device is present in the netlist
+ */
+bool ice_is_gps_in_netlist(struct ice_hw *hw)
+{
+	if (ice_find_netlist_node(hw, ICE_AQC_LINK_TOPO_NODE_TYPE_GPS,
+				  ICE_AQC_GET_LINK_TOPO_NODE_NR_GEN_GPS, NULL))
+		return false;
+
+	return true;
+}
+
 /**
  * ice_aq_list_caps - query function/device capabilities
  * @hw: pointer to the HW struct
diff --git a/drivers/net/ethernet/intel/ice/ice_common.h b/drivers/net/ethernet/intel/ice/ice_common.h
index 52bb7f4bbb74..626ee08cc23a 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.h
+++ b/drivers/net/ethernet/intel/ice/ice_common.h
@@ -94,6 +94,7 @@ ice_aq_get_phy_caps(struct ice_port_info *pi, bool qual_mods, u8 report_mode,
 		    struct ice_sq_cd *cd);
 bool ice_is_pf_c827(struct ice_hw *hw);
 bool ice_is_clock_mux_in_netlist(struct ice_hw *hw);
+bool ice_is_gps_in_netlist(struct ice_hw *hw);
 int
 ice_aq_list_caps(struct ice_hw *hw, void *buf, u16 buf_size, u32 *cap_count,
 		 enum ice_adminq_opc opc, struct ice_sq_cd *cd);
diff --git a/drivers/net/ethernet/intel/ice/ice_gnss.c b/drivers/net/ethernet/intel/ice/ice_gnss.c
index 75c9de675f20..c8ea1af51ad3 100644
--- a/drivers/net/ethernet/intel/ice/ice_gnss.c
+++ b/drivers/net/ethernet/intel/ice/ice_gnss.c
@@ -389,6 +389,9 @@ bool ice_gnss_is_gps_present(struct ice_hw *hw)
 	if (!hw->func_caps.ts_func_info.src_tmr_owned)
 		return false;
 
+	if (!ice_is_gps_in_netlist(hw))
+		return false;
+
 #if IS_ENABLED(CONFIG_PTP_1588_CLOCK)
 	if (ice_is_e810t(hw)) {
 		int err;
diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c
index b8849518120d..8da025f59999 100644
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -3991,10 +3991,8 @@ void ice_init_feature_support(struct ice_pf *pf)
 			break;
 		if (ice_is_clock_mux_in_netlist(&pf->hw))
 			ice_set_feature_support(pf, ICE_F_SMA_CTRL);
-		if (ice_is_e810t(&pf->hw)) {
-			if (ice_gnss_is_gps_present(&pf->hw))
-				ice_set_feature_support(pf, ICE_F_GNSS);
-		}
+		if (ice_gnss_is_gps_present(&pf->hw))
+			ice_set_feature_support(pf, ICE_F_GNSS);
 		break;
 	default:
 		break;
-- 
2.38.1