1 #ifndef SCSI_TRANSPORT_SAS_H
2 #define SCSI_TRANSPORT_SAS_H
4 #include <linux/transport_class.h>
5 #include <linux/types.h>
7 struct scsi_transport_template;
11 enum sas_device_type {
14 SAS_EDGE_EXPANDER_DEVICE,
15 SAS_FANOUT_EXPANDER_DEVICE,
19 SAS_PROTOCOL_SATA = 0x01,
20 SAS_PROTOCOL_SMP = 0x02,
21 SAS_PROTOCOL_STP = 0x04,
22 SAS_PROTOCOL_SSP = 0x08,
26 SAS_LINK_RATE_UNKNOWN,
30 SAS_SATA_PORT_SELECTOR,
31 SAS_LINK_RATE_1_5_GBPS,
32 SAS_LINK_RATE_3_0_GBPS,
33 SAS_LINK_RATE_6_0_GBPS,
38 enum sas_device_type device_type;
39 enum sas_protocol initiator_port_protocols;
40 enum sas_protocol target_port_protocols;
49 /* phy identification */
50 struct sas_identify identify;
53 enum sas_linkrate negotiated_linkrate;
54 enum sas_linkrate minimum_linkrate_hw;
55 enum sas_linkrate minimum_linkrate;
56 enum sas_linkrate maximum_linkrate_hw;
57 enum sas_linkrate maximum_linkrate;
61 unsigned int local_attached : 1;
63 /* link error statistics */
64 u32 invalid_dword_count;
65 u32 running_disparity_error_count;
66 u32 loss_of_dword_sync_count;
67 u32 phy_reset_problem_count;
69 /* the other end of the link */
70 struct sas_rphy *rphy;
73 #define dev_to_phy(d) \
74 container_of((d), struct sas_phy, dev)
75 #define transport_class_to_phy(cdev) \
76 dev_to_phy((cdev)->dev)
77 #define phy_to_shost(phy) \
78 dev_to_shost((phy)->dev.parent)
82 struct sas_identify identify;
83 struct list_head list;
87 #define dev_to_rphy(d) \
88 container_of((d), struct sas_rphy, dev)
89 #define transport_class_to_rphy(cdev) \
90 dev_to_rphy((cdev)->dev)
91 #define rphy_to_shost(rphy) \
92 dev_to_shost((rphy)->dev.parent)
95 /* The functions by which the transport class and the driver communicate */
96 struct sas_function_template {
97 int (*get_linkerrors)(struct sas_phy *);
98 int (*get_enclosure_identifier)(struct sas_rphy *, u64 *);
99 int (*get_bay_identifier)(struct sas_rphy *);
100 int (*phy_reset)(struct sas_phy *, int);
104 extern void sas_remove_host(struct Scsi_Host *);
106 extern struct sas_phy *sas_phy_alloc(struct device *, int);
107 extern void sas_phy_free(struct sas_phy *);
108 extern int sas_phy_add(struct sas_phy *);
109 extern void sas_phy_delete(struct sas_phy *);
110 extern int scsi_is_sas_phy(const struct device *);
112 extern struct sas_rphy *sas_rphy_alloc(struct sas_phy *);
113 void sas_rphy_free(struct sas_rphy *);
114 extern int sas_rphy_add(struct sas_rphy *);
115 extern void sas_rphy_delete(struct sas_rphy *);
116 extern int scsi_is_sas_rphy(const struct device *);
118 extern struct scsi_transport_template *
119 sas_attach_transport(struct sas_function_template *);
120 extern void sas_release_transport(struct scsi_transport_template *);
122 #endif /* SCSI_TRANSPORT_SAS_H */