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-rw-r--r--include/scsi/scsi_transport_sas.h100
1 files changed, 100 insertions, 0 deletions
diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h
new file mode 100644
index 00000000000..bc4aeb660dd
--- /dev/null
+++ b/include/scsi/scsi_transport_sas.h
@@ -0,0 +1,100 @@
+#ifndef SCSI_TRANSPORT_SAS_H
+#define SCSI_TRANSPORT_SAS_H
+
+#include <linux/transport_class.h>
+#include <linux/types.h>
+
+struct scsi_transport_template;
+struct sas_rphy;
+
+
+enum sas_device_type {
+ SAS_PHY_UNUSED,
+ SAS_END_DEVICE,
+ SAS_EDGE_EXPANDER_DEVICE,
+ SAS_FANOUT_EXPANDER_DEVICE,
+};
+
+enum sas_protocol {
+ SAS_PROTOCOL_SATA = 0x01,
+ SAS_PROTOCOL_SMP = 0x02,
+ SAS_PROTOCOL_STP = 0x04,
+ SAS_PROTOCOL_SSP = 0x08,
+};
+
+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_VIRTUAL,
+};
+
+struct sas_identify {
+ enum sas_device_type device_type;
+ enum sas_protocol initiator_port_protocols;
+ enum sas_protocol target_port_protocols;
+ u64 sas_address;
+ u8 phy_identifier;
+};
+
+/* The functions by which the transport class and the driver communicate */
+struct sas_function_template {
+};
+
+struct sas_phy {
+ struct device dev;
+ int number;
+ struct sas_identify identify;
+ enum sas_linkrate negotiated_linkrate;
+ enum sas_linkrate minimum_linkrate_hw;
+ enum sas_linkrate minimum_linkrate;
+ enum sas_linkrate maximum_linkrate_hw;
+ enum sas_linkrate maximum_linkrate;
+ u8 port_identifier;
+ struct sas_rphy *rphy;
+};
+
+#define dev_to_phy(d) \
+ container_of((d), struct sas_phy, dev)
+#define transport_class_to_phy(cdev) \
+ dev_to_phy((cdev)->dev)
+#define phy_to_shost(phy) \
+ dev_to_shost((phy)->dev.parent)
+
+struct sas_rphy {
+ struct device dev;
+ struct sas_identify identify;
+ struct list_head list;
+ u32 scsi_target_id;
+};
+
+#define dev_to_rphy(d) \
+ container_of((d), struct sas_rphy, dev)
+#define transport_class_to_rphy(cdev) \
+ dev_to_rphy((cdev)->dev)
+#define rphy_to_shost(rphy) \
+ dev_to_shost((rphy)->dev.parent)
+
+extern void sas_remove_host(struct Scsi_Host *);
+
+extern struct sas_phy *sas_phy_alloc(struct device *, int);
+extern void sas_phy_free(struct sas_phy *);
+extern int sas_phy_add(struct sas_phy *);
+extern void sas_phy_delete(struct sas_phy *);
+extern int scsi_is_sas_phy(const struct device *);
+
+extern struct sas_rphy *sas_rphy_alloc(struct sas_phy *);
+void sas_rphy_free(struct sas_rphy *);
+extern int sas_rphy_add(struct sas_rphy *);
+extern void sas_rphy_delete(struct sas_rphy *);
+extern int scsi_is_sas_rphy(const struct device *);
+
+extern struct scsi_transport_template *
+sas_attach_transport(struct sas_function_template *);
+extern void sas_release_transport(struct scsi_transport_template *);
+
+#endif /* SCSI_TRANSPORT_SAS_H */