3 files changed, 110 insertions, 2 deletions

diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index da63722c0123..c0e4c67d836f 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -178,8 +178,8 @@ static inline struct scsi_target *scsi_target(struct scsi_device *sdev)
 
 extern struct scsi_device *__scsi_add_device(struct Scsi_Host *,
                 uint, uint, uint, void *hostdata);
-#define scsi_add_device(host, channel, target, lun) \
-        __scsi_add_device(host, channel, target, lun, NULL)
+extern int scsi_add_device(struct Scsi_Host *host, uint channel,
+                           uint target, uint lun);
 extern void scsi_remove_device(struct scsi_device *);
 extern int scsi_device_cancel(struct scsi_device *, int);
 
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index 70ad16315a16..115db056dc6b 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -439,4 +439,12 @@ int fc_remote_port_block(struct fc_rport *rport);
 void fc_remote_port_unblock(struct fc_rport *rport);
 int scsi_is_fc_rport(const struct device *);
 
+static inline u64 wwn_to_u64(u8 *wwn)
+{
+        return (u64)wwn[0] << 56 | (u64)wwn[1] << 48 |
+            (u64)wwn[2] << 40 | (u64)wwn[3] << 32 |
+            (u64)wwn[4] << 24 | (u64)wwn[5] << 16 |
+            (u64)wwn[6] <<  8 | (u64)wwn[7];
+}
+
 #endif /* SCSI_TRANSPORT_FC_H */
diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h
new file mode 100644
index 000000000000..bc4aeb660dd3
--- /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 */