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…
rio_local_write_config_8 – Write 8 bits to local configuration space Synopsis int rio_local_write_config_8(struct rio_mport *port, u32 offset, u8 data); Arguments port Master port offset Offset into local configuration space data Data to be written Description Writes 8 bits of data to the specified offset within the local device’s configuration space. Author Matt Porter <mporter [at] kernel.crashing.org>,…
rio_local_write_config_32 – Write 32 bits to local configuration space Synopsis int rio_local_write_config_32(struct rio_mport *port, u32 offset, u32 data); Arguments port Master port offset Offset into local configuration space data Data to be written Description Writes 32 bits of data to the specified offset within the local device’s configuration space. Author Matt Porter <mporter [at] kernel.crashing.org>,…
rio_local_write_config_16 – Write 16 bits to local configuration space Synopsis int rio_local_write_config_16(struct rio_mport *port, u32 offset, u16 data); Arguments port Master port offset Offset into local configuration space data Data to be written Description Writes 16 bits of data to the specified offset within the local device’s configuration space. Author Matt Porter <mporter [at] kernel.crashing.org>,…
rio_local_set_device_id – Set the base/extended device id for a port Synopsis void rio_local_set_device_id(struct rio_mport *port, u16 did); Arguments port RIO master port did Device ID value to be written Description Writes the base/extended device id from a device. Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright
rio_local_read_config_8 – Read 8 bits from local configuration space Synopsis int rio_local_read_config_8(struct rio_mport *port, u32 offset, u8 *data); Arguments port Master port offset Offset into local configuration space data Pointer to read data into Description Reads 8 bits of data from the specified offset within the local device’s configuration space. Author Matt Porter <mporter [at]…
rio_local_read_config_32 – Read 32 bits from local configuration space Synopsis int rio_local_read_config_32(struct rio_mport *port, u32 offset, u32 *data); Arguments port Master port offset Offset into local configuration space data Pointer to read data into Description Reads 32 bits of data from the specified offset within the local device’s configuration space. Author Matt Porter <mporter [at]…
rio_local_read_config_16 – Read 16 bits from local configuration space Synopsis int rio_local_read_config_16(struct rio_mport *port, u32 offset, u16 *data); Arguments port Master port offset Offset into local configuration space data Pointer to read data into Description Reads 16 bits of data from the specified offset within the local device’s configuration space. Author Matt Porter <mporter [at]…
rio_local_get_device_id – Get the base/extended device id for a port Synopsis u16 rio_local_get_device_id(struct rio_mport * port); Arguments port RIO master port from which to get the deviceid Description Reads the base/extended device id from the local device implementing the master port. Returns the 8/16-bit device id. Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright
rio_is_switch – Tests if a RIO device has switch capabilities Synopsis int rio_is_switch(struct rio_dev *rdev); Arguments rdev RIO device Description Gets the RIO device Processing Element Features register contents and tests for switch capabilities. Returns 1 if the device is a switch or 0 if it is not a switch. The RIO device struct is…
rio_init_mbox_res – Initialize a RIO mailbox resource Synopsis void rio_init_mbox_res(struct resource *res, int start, int end); Arguments res resource struct start start of mailbox range end end of mailbox range Description This function is used to initialize the fields of a resource for use as a mailbox resource. It initializes a range of mailboxes using…
rio_init_em – Initializes RIO Error Management (for switches) Synopsis void rio_init_em(struct rio_dev *rdev); Arguments rdev RIO device Description For each enumerated switch, call device-specific error management initialization routine (if supplied by the switch driver). Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright
rio_init_dbell_res – Initialize a RIO doorbell resource Synopsis void rio_init_dbell_res(struct resource *res, u16 start, u16 end); Arguments res resource struct start start of doorbell range end end of doorbell range Description This function is used to initialize the fields of a resource for use as a doorbell resource. It initializes a range of doorbell messages…
rio_inb_pwrite_handler – inbound port-write message handler Synopsis int rio_inb_pwrite_handler(struct rio_mport *mport, union rio_pw_msg *pw_msg); Arguments mport mport device associated with port-write pw_msg pointer to inbound port-write message Description Processes an inbound port-write message. Returns 0 if the request has been satisfied. Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright
rio_get_input_status – Sends a Link-Request/Input-Status control symbol and returns link-response (if requested). Synopsis int rio_get_input_status(struct rio_dev *rdev, int pnum, u32 *lnkresp); Arguments rdev RIO devive to issue Input-status command pnum Device port number to issue the command lnkresp Response from a link partner Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright