diff options
Diffstat (limited to 'include/scsi/scsi_transport_sas.h')
-rw-r--r-- | include/scsi/scsi_transport_sas.h | 100 |
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 0000000..bc4aeb6 --- /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 */ |