ice: introduce new E825C devices family

Introduce new Intel Ethernet E825C family devices.
Add new PCI device IDs which are going to be supported by the
driver:
- 579C: Intel(R) Ethernet Connection E825-C for backplane
- 579D: Intel(R) Ethernet Connection E825-C for QSFP
- 579E: Intel(R) Ethernet Connection E825-C for SFP
- 579F: Intel(R) Ethernet Connection E825-C for SGMII

Add helper function ice_is_e825c() to verify if the running device
belongs to E825C family.
Co-developed-by: Jan Glaza <jan.glaza@intel.com>
Signed-off-by: Jan Glaza <jan.glaza@intel.com>
Co-developed-by: Michal Michalik <michal.michalik@intel.com>
Signed-off-by: Michal Michalik <michal.michalik@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
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>

drivers/net/ethernet/intel/ice/ice_common.c

@@ -240,6 +240,25 @@ bool ice_is_e823(struct ice_hw *hw)
 	}
 }
 
+/**
+ * ice_is_e825c - Check if a device is E825C family device
+ * @hw: pointer to the hardware structure
+ *
+ * Return: true if the device is E825-C based, false if not.
+ */
+bool ice_is_e825c(struct ice_hw *hw)
+{
+	switch (hw->device_id) {
+	case ICE_DEV_ID_E825C_BACKPLANE:
+	case ICE_DEV_ID_E825C_QSFP:
+	case ICE_DEV_ID_E825C_SFP:
+	case ICE_DEV_ID_E825C_SGMII:
+		return true;
+	default:
+		return false;
+	}
+}
+
 /**
  * ice_clear_pf_cfg - Clear PF configuration
  * @hw: pointer to the hardware structure

drivers/net/ethernet/intel/ice/ice_common.h

@@ -251,6 +251,7 @@ 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);
+bool ice_is_e825c(struct ice_hw *hw);
 int
 ice_sched_query_elem(struct ice_hw *hw, u32 node_teid,
 		     struct ice_aqc_txsched_elem_data *buf);

drivers/net/ethernet/intel/ice/ice_devids.h

@@ -71,5 +71,13 @@
 #define ICE_DEV_ID_E822L_10G_BASE_T	0x1899
 /* Intel(R) Ethernet Connection E822-L 1GbE */
 #define ICE_DEV_ID_E822L_SGMII		0x189A
+/* Intel(R) Ethernet Connection E825-C for backplane */
+#define ICE_DEV_ID_E825C_BACKPLANE	0x579c
+/* Intel(R) Ethernet Connection E825-C for QSFP */
+#define ICE_DEV_ID_E825C_QSFP		0x579d
+/* Intel(R) Ethernet Connection E825-C for SFP */
+#define ICE_DEV_ID_E825C_SFP		0x579e
+/* Intel(R) Ethernet Connection E825-C 1GbE */
+#define ICE_DEV_ID_E825C_SGMII		0x579f
 
 #endif /* _ICE_DEVIDS_H_ */

drivers/net/ethernet/intel/ice/ice_main.c

@@ -5752,6 +5752,10 @@ static const struct pci_device_id ice_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_1GBE) },
 	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E823L_QSFP) },
 	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E822_SI_DFLT) },
+	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E825C_BACKPLANE), },
+	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E825C_QSFP), },
+	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E825C_SFP), },
+	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E825C_SGMII), },
 	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E830_BACKPLANE) },
 	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E830_QSFP56) },
 	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E830_SFP) },