rio_release_dev – Frees a RIO device struct Synopsis void rio_release_dev(struct device *dev); Arguments dev LDM device associated with a RIO device struct Description Gets the RIO device struct associated a RIO device struct. The RIO device struct is freed. Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright
rio_register_scan – enumeration/discovery method registration interface Synopsis int rio_register_scan(int mport_id, struct rio_scan *scan_ops); Arguments mport_id mport device ID for which fabric scan routine has to be set (RIO_MPORT_ANY = set for all available mports) scan_ops enumeration/discovery operations structure Description Registers enumeration/discovery operations with RapidIO subsystem and attaches it to the specified mport device (or all…
rio_register_driver – register a new RIO driver Synopsis int rio_register_driver(struct rio_driver *rdrv); Arguments rdrv the RIO driver structure to register Description Adds a struct rio_driver to the list of registered drivers. Returns a negative value on error, otherwise 0. If no error occurred, the driver remains registered even if no device was claimed during registration….
rio_read_config_8 – Read 8 bits from configuration space Synopsis int rio_read_config_8(struct rio_dev *rdev, u32 offset, u8 *data); Arguments rdev RIO device offset Offset into device configuration space data Pointer to read data into Description Reads 8 bits of data from the specified offset within the RIO device’s configuration space. Author Matt Porter <mporter [at] kernel.crashing.org>,…
rio_read_config_32 – Read 32 bits from configuration space Synopsis int rio_read_config_32(struct rio_dev *rdev, u32 offset, u32 *data); Arguments rdev RIO device offset Offset into device configuration space data Pointer to read data into Description Reads 32 bits of data from the specified offset within the RIO device’s configuration space. Author Matt Porter <mporter [at] kernel.crashing.org>,…
rio_read_config_16 – Read 16 bits from configuration space Synopsis int rio_read_config_16(struct rio_dev *rdev, u32 offset, u16 *data); Arguments rdev RIO device offset Offset into device configuration space data Pointer to read data into Description Reads 16 bits of data from the specified offset within the RIO device’s configuration space. Author Matt Porter <mporter [at] kernel.crashing.org>,…
rio_query_mport – Query mport device attributes Synopsis int rio_query_mport(struct rio_mport *port, struct rio_mport_attr *mport_attr); Arguments port mport device to query mport_attr mport attributes data structure Description Returns attributes of specified mport through the pointer to attributes data structure. Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright
rio_pw_enable – Enables/disables port-write handling by a master port Synopsis void rio_pw_enable(struct rio_mport *mport, int enable); Arguments mport Master port associated with port-write handling enable 1=enable, 0=disable Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright
rio_name – Get the unique RIO device identifier Synopsis const char *rio_name(struct rio_dev *rdev); Arguments rdev RIO device Description Get the unique RIO device identifier. Returns the device identifier string. Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright
rio_mport_scan – execute enumeration/discovery on the specified mport Synopsis int rio_mport_scan(int mport_id); Arguments mport_id number (ID) of mport device Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright
rio_mport_is_active – Tests if master port link is active Synopsis int rio_mport_is_active(struct rio_mport *port); Arguments port Master port to test Description Reads the port error status CSR for the master port to determine if the port has an active link. Returns RIO_PORT_N_ERR_STS_PORT_OK if the master port is active or 0 if it is inactive. Author…
rio_mport_get_physefb – Helper function that returns register offset for Physical Layer Extended Features Block. Synopsis u32 rio_mport_get_physefb(struct rio_mport * port, int local, u16 destid, u8 hopcount, u32 * rmap); Arguments port Master port to issue transaction local Indicate a local master port or remote device access destid Destination ID of the device hopcount Number of switch hops to the device rmap pointer…
rio_mport_get_feature – query for devices’ extended features Synopsis u32 rio_mport_get_feature(struct rio_mport * port, int local, u16 destid, u8 hopcount, int ftr); Arguments port Master port to issue transaction local Indicate a local master port or remote device access destid Destination ID of the device hopcount Number of switch hops to the device ftr Extended feature code Description Tell if a device…
rio_mport_get_efb – get pointer to next extended features block Synopsis u32 rio_mport_get_efb(struct rio_mport * port, int local, u16 destid, u8 hopcount, u32 from); Arguments port Master port to issue transaction local Indicate a local master port or remote device access destid Destination ID of the device hopcount Number of switch hops to the device from Offset of current Extended Feature block…
rio_mport_chk_dev_access – Validate access to the specified device. Synopsis int rio_mport_chk_dev_access(struct rio_mport *mport, u16 destid, u8 hopcount); Arguments mport Master port to send transactions destid Device destination ID in network hopcount Number of hops into the network Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright
rio_match_device – Tell if a RIO device has a matching RIO device id structure Synopsis const struct rio_device_id *rio_match_device(const struct rio_device_id *id, const struct rio_dev *rdev); Arguments id the RIO device id structure to match against rdev the RIO device structure to match against Description Used from driver probe and bus matching to check whether…
rio_match_bus – Tell if a RIO device structure has a matching RIO driver device id structure Synopsis int rio_match_bus(struct device *dev, struct device_driver *drv); Arguments dev the standard device structure to match against drv the standard driver structure containing the ids to match against Description Used by a driver to check whether a RIO device…
rio_map_outb_region – – Map outbound memory region. Synopsis int rio_map_outb_region(struct rio_mport *mport, u16 destid, u64 rbase, u32 size, u32 rflags, dma_addr_t *local); Arguments mport Master port. destid destination id window points to rbase RIO base address window translates to size Size of the memory region rflags Flags for mapping. local physical address of memory region…
rio_map_inb_region – – Map inbound memory region. Synopsis int rio_map_inb_region(struct rio_mport *mport, dma_addr_t local, u64 rbase, u32 size, u32 rflags); Arguments mport Master port. local physical address of memory region to be mapped rbase RIO base address assigned to this window size Size of the memory region rflags Flags for mapping. Return 0 — Success….
rio_lock_device – Acquires host device lock for specified device Synopsis int rio_lock_device(struct rio_mport *port, u16 destid, u8 hopcount, int wait_ms); Arguments port Master port to send transaction destid Destination ID for device/switch hopcount Hopcount to reach switch wait_ms Max wait time in msec (0 = no timeout) Description Attepts to acquire host device lock for…