};
enum sas_linkrate {
- SAS_LINK_RATE_UNKNOWN,
- SAS_PHY_DISABLED,
- SAS_LINK_RATE_FAILED,
- SAS_SATA_SPINUP_HOLD,
- SAS_SATA_PORT_SELECTOR,
- SAS_LINK_RATE_1_5_GBPS,
- SAS_LINK_RATE_3_0_GBPS,
- SAS_LINK_RATE_6_0_GBPS,
- SAS_LINK_VIRTUAL,
+ /* These Values are defined in the SAS standard */
+ SAS_LINK_RATE_UNKNOWN = 0,
+ SAS_PHY_DISABLED = 1,
+ SAS_PHY_RESET_PROBLEM = 2,
+ SAS_SATA_SPINUP_HOLD = 3,
+ SAS_SATA_PORT_SELECTOR = 4,
+ SAS_PHY_RESET_IN_PROGRESS = 5,
+ SAS_LINK_RATE_1_5_GBPS = 8,
+ SAS_LINK_RATE_G1 = SAS_LINK_RATE_1_5_GBPS,
+ SAS_LINK_RATE_3_0_GBPS = 9,
+ SAS_LINK_RATE_G2 = SAS_LINK_RATE_3_0_GBPS,
+ SAS_LINK_RATE_6_0_GBPS = 10,
+ /* These are virtual to the transport class and may never
+ * be signalled normally since the standard defined field
+ * is only 4 bits */
+ SAS_LINK_RATE_FAILED = 0x10,
+ SAS_PHY_VIRTUAL = 0x11,
};
struct sas_identify {
struct sas_phy {
struct device dev;
int number;
+ int enabled;
/* phy identification */
struct sas_identify identify;
enum sas_linkrate maximum_linkrate_hw;
enum sas_linkrate maximum_linkrate;
- /* internal state */
- unsigned int local_attached : 1;
-
/* link error statistics */
u32 invalid_dword_count;
u32 running_disparity_error_count;
/* for the list of phys belonging to a port */
struct list_head port_siblings;
+
+ struct work_struct reset_work;
};
#define dev_to_phy(d) \
int port_identifier;
int num_phys;
+ /* port flags */
+ unsigned int is_backlink:1;
/* the other end of the link */
struct sas_rphy *rphy;
#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;
+};
+
/* The functions by which the transport class and the driver communicate */
struct sas_function_template {
int (*get_linkerrors)(struct sas_phy *);
int (*get_enclosure_identifier)(struct sas_rphy *, u64 *);
int (*get_bay_identifier)(struct sas_rphy *);
int (*phy_reset)(struct sas_phy *, int);
+ int (*phy_enable)(struct sas_phy *, int);
+ int (*set_phy_speed)(struct sas_phy *, struct sas_phy_linkrates *);
};
extern struct sas_rphy *sas_expander_alloc(struct sas_port *, enum sas_device_type);
void sas_rphy_free(struct sas_rphy *);
extern int sas_rphy_add(struct sas_rphy *);
+extern void sas_rphy_remove(struct sas_rphy *);
extern void sas_rphy_delete(struct sas_rphy *);
extern int scsi_is_sas_rphy(const struct device *);
void sas_port_delete(struct sas_port *);
void sas_port_add_phy(struct sas_port *, struct sas_phy *);
void sas_port_delete_phy(struct sas_port *, struct sas_phy *);
+void sas_port_mark_backlink(struct sas_port *);
int scsi_is_sas_port(const struct device *);
extern struct scsi_transport_template *
rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE;
}
+#define scsi_is_sas_phy_local(phy) scsi_is_host_device((phy)->dev.parent)
+
#endif /* SCSI_TRANSPORT_SAS_H */