ice: Add get C827 PHY index function

Add a function to find the C827 PHY node handle and return C827 PHY
index for the E810 products.

In order to bring this function to full functionality, some
helpers for this were written by Michal Michalik.

Co-developed-by: Michal Michalik <michal.michalik@intel.com>
Signed-off-by: Michal Michalik <michal.michalik@intel.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

1 files changed, 62 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index dade0a50299c..ce3f0f2b0e35 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -5,6 +5,7 @@
 #include "ice_sched.h"
 #include "ice_adminq_cmd.h"
 #include "ice_flow.h"
+#include "ice_ptp_hw.h"
 
 #define ICE_PF_RESET_WAIT_COUNT	300
 
@@ -2662,6 +2663,67 @@ ice_parse_dev_caps(struct ice_hw *hw, struct ice_hw_dev_caps *dev_p,
 }
 
 /**
+ * ice_aq_get_netlist_node
+ * @hw: pointer to the hw struct
+ * @cmd: get_link_topo AQ structure
+ * @node_part_number: output node part number if node found
+ * @node_handle: output node handle parameter if node found
+ */
+static int
+ice_aq_get_netlist_node(struct ice_hw *hw, struct ice_aqc_get_link_topo *cmd,
+			u8 *node_part_number, u16 *node_handle)
+{
+	struct ice_aq_desc desc;
+
+	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_link_topo);
+	desc.params.get_link_topo = *cmd;
+
+	if (ice_aq_send_cmd(hw, &desc, NULL, 0, NULL))
+		return -EIO;
+
+	if (node_handle)
+		*node_handle = le16_to_cpu(desc.params.get_link_topo.addr.handle);
+	if (node_part_number)
+		*node_part_number = desc.params.get_link_topo.node_part_num;
+
+	return 0;
+}
+
+/**
+ * ice_is_pf_c827 - check if pf contains c827 phy
+ * @hw: pointer to the hw struct
+ */
+bool ice_is_pf_c827(struct ice_hw *hw)
+{
+	struct ice_aqc_get_link_topo cmd = {};
+	u8 node_part_number;
+	u16 node_handle;
+	int status;
+
+	if (hw->mac_type != ICE_MAC_E810)
+		return false;
+
+	if (hw->device_id != ICE_DEV_ID_E810C_QSFP)
+		return true;
+
+	cmd.addr.topo_params.node_type_ctx =
+		FIELD_PREP(ICE_AQC_LINK_TOPO_NODE_TYPE_M, ICE_AQC_LINK_TOPO_NODE_TYPE_PHY) |
+		FIELD_PREP(ICE_AQC_LINK_TOPO_NODE_CTX_M, ICE_AQC_LINK_TOPO_NODE_CTX_PORT);
+	cmd.addr.topo_params.index = 0;
+
+	status = ice_aq_get_netlist_node(hw, &cmd, &node_part_number,
+					 &node_handle);
+
+	if (status || node_part_number != ICE_AQC_GET_LINK_TOPO_NODE_NR_C827)
+		return false;
+
+	if (node_handle == E810C_QSFP_C827_0_HANDLE || node_handle == E810C_QSFP_C827_1_HANDLE)
+		return true;
+
+	return false;
+}
+
+/**
  * ice_aq_list_caps - query function/device capabilities
  * @hw: pointer to the HW struct
  * @buf: a buffer to hold the capabilities