+/*
+ * 2-wire device address of the base information in accordance with SFF-8472
+ * Diagnostic Monitoring Interface for Optical Transceivers section
+ * 4 Memory Organization.
+ */
+#define EFX_PHY_MEDIA_INFO_DEV_ADDR_SFP_BASE 0xA0
+
+/*
+ * 2-wire device address of the digital diagnostics monitoring interface
+ * in accordance with SFF-8472 Diagnostic Monitoring Interface for Optical
+ * Transceivers section 4 Memory Organization.
+ */
+#define EFX_PHY_MEDIA_INFO_DEV_ADDR_SFP_DDM 0xA2
+
+/*
+ * Hard wired 2-wire device address for QSFP+ in accordance with SFF-8436
+ * QSFP+ 10 Gbs 4X PLUGGABLE TRANSCEIVER section 7.4 Device Addressing and
+ * Operation.
+ */
+#define EFX_PHY_MEDIA_INFO_DEV_ADDR_QSFP 0xA0
+
+/*
+ * Maximum accessible data offset for PHY module information.
+ */
+#define EFX_PHY_MEDIA_INFO_MAX_OFFSET 0x100
+
+