FRU Data Structures

General Description

This section describes the data types defined by the UBM FRU.

Data Structures
struct	mtb_stc_ubm_features_t
	Features configuration structure. More...
struct	mtb_stc_ubm_fru_oa_config_t
	UBM FRU Overview Area configuration structure. More...
struct	mtb_stc_ubm_drive_types_t
	Drive Types Supported configuration structure. More...
struct	mtb_stc_ubm_routing_t
	HFC routing configuration structure. More...

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Data Structure Documentation

mtb_stc_ubm_features_t

struct mtb_stc_ubm_features_t

Data Fields
bool	read_checksum_creation	Indicates if the UBM Controller generates a valid Read Checksum for the read phase of a 2Wire transaction.
bool	write_checksum_checking	Indicates if the UBM Controller performs Checksum verification on the write phase of a 2Wire transaction.
bool	cprsnt_legacy_mode	Indicates the behavior of the CPRSNT#/CHANGE_DETECT# signal.
bool	pcie_reset_change_count_mask	Indicates if a change to PCIe Reset field causes the Change Count field to increment.
bool	drive_type_installed_change_count_mask	Indicates if a change to Drive Type Installed field causes the Change Count field to increment.
bool	operational_state_change_count_mask	Indicatesif a change to Operational State field causes the Change Count field to increment.
uint8_t	perst_management_override	Indicates the DFC PERST# behavior when a Drive has been installed.
bool	smbus_reset_control	Controls the DFC SMBRST# signal for all DFC's associated under the HFC.

mtb_stc_ubm_fru_oa_config_t

struct mtb_stc_ubm_fru_oa_config_t

Data Fields
uint8_t	two_wire_device_arrangement	Two wire device arrangement.
uint8_t	two_wire_mux_address	Two wire mux adress.
uint8_t	two_wire_max_byte_count	Two wire max byte count.
uint8_t	ubm_max_time_limit	Device max time limit.
mtb_stc_ubm_features_t	ubm_controller_features	Device features.
uint8_t	maximum_power_per_dfc	Maximum power per DFC.
uint8_t	mux_channel_count	Mux channel type.
uint8_t	enable_bit_location	Enable bit location.
uint8_t	mux_type	Mux type.

mtb_stc_ubm_drive_types_t

struct mtb_stc_ubm_drive_types_t

Data Fields
bool	sff_ta_1001	SFF-TA-1001 support.
bool	gen_z	Gen-Z support.
bool	sas_sata	SAS/SATA support.
bool	quad_pcie	Quad PCIe support.
bool	dfc_empty	DFC empty support.

mtb_stc_ubm_routing_t

struct mtb_stc_ubm_routing_t

Data Fields
mtb_en_ubm_controller_type_t	ubm_ctrl_type	UBM controller type.
uint8_t	ubm_ctrl_slave_addr	I2C address for UBM controller.
uint8_t	drive_connector_idx	DFC status and control descriptor index.
mtb_stc_ubm_drive_types_t	drive_types_supported	Drive types supported in DFC.
mtb_en_ubm_link_width_t	drive_link_width	Number of lanes in the port.
mtb_en_ubm_port_type_t	port_type	Connector port type.
mtb_en_ubm_port_domain_t	domain	Connector port domain.
mtb_en_ubm_sata_link_rate_t	max_sata_line_rate	Maximum SATA rate.
mtb_en_ubm_pcie_link_rate_t	max_pcie_line_rate	Maximum PCIe rate.
mtb_en_ubm_sas_link_rate_t	max_sas_line_rate	Maximum SAS rate.
uint8_t	hfc_starting_phy_lane	Host lane index.
uint8_t	hfc_identifier	Host connector identity.
uint8_t	slot_offset	Slot offset.