+struct sas_expander_device {
+ int level;
+ int next_port_id;
+
+ #define SAS_EXPANDER_VENDOR_ID_LEN 8
+ char vendor_id[SAS_EXPANDER_VENDOR_ID_LEN+1];
+ #define SAS_EXPANDER_PRODUCT_ID_LEN 16
+ char product_id[SAS_EXPANDER_PRODUCT_ID_LEN+1];
+ #define SAS_EXPANDER_PRODUCT_REV_LEN 4
+ char product_rev[SAS_EXPANDER_PRODUCT_REV_LEN+1];
+ #define SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN 8
+ char component_vendor_id[SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN+1];
+ u16 component_id;
+ u8 component_revision_id;
+
+ struct sas_rphy rphy;
+
+};
+#define rphy_to_expander_device(r) \
+ container_of((r), struct sas_expander_device, rphy)
+
+struct sas_port {
+ struct device dev;
+
+ int port_identifier;
+ int num_phys;
+ /* port flags */
+ unsigned int is_backlink:1;
+
+ /* the other end of the link */
+ struct sas_rphy *rphy;
+
+ struct mutex phy_list_mutex;
+ struct list_head phy_list;
+};
+
+#define dev_to_sas_port(d) \
+ container_of((d), struct sas_port, dev)
+#define transport_class_to_sas_port(cdev) \
+ dev_to_sas_port((cdev)->dev)
+
+struct sas_phy_linkrates {
+ enum sas_linkrate maximum_linkrate;
+ enum sas_linkrate minimum_linkrate;
+};