get_request – get a free request Synopsis struct request *get_request(struct request_queue *q, int op, int op_flags, struct bio *bio, gfp_t gfp_mask); Arguments q request_queue to allocate request from op REQ_OP_READ/REQ_OP_WRITE op_flags rq_flag_bits bio bio to allocate request for (can be NULL) gfp_mask allocation mask Description Get a free request from q. If __GFP_DIRECT_RECLAIM is set…
get_phy_id – reads the specified addr for its ID. Synopsis int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id, bool is_c45, struct phy_c45_device_ids *c45_ids); Arguments bus the target MII bus addr PHY address on the MII bus phy_id where to store the ID retrieved. is_c45 If true the PHY uses the 802.3 clause 45 protocol c45_ids…
get_phy_device – reads the specified PHY device and returns its phy_device struct Synopsis struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45); Arguments bus the target MII bus addr PHY address on the MII bus is_c45 If true the PHY uses the 802.3 clause 45 protocol Description Reads the ID registers of the PHY at…
get_phy_c45_ids – reads the specified addr for its 802.3-c45 IDs. Synopsis int get_phy_c45_ids(struct mii_bus *bus, int addr, u32 *phy_id, struct phy_c45_device_ids *c45_ids); Arguments bus the target MII bus addr PHY address on the MII bus phy_id where to store the ID retrieved. c45_ids where to store the c45 ID information. Description If the PHY devices-in-package…
get_pfn_range_for_nid – Return the start and end page frames for a node Synopsis void get_pfn_range_for_nid(unsigned int nid, unsigned long *start_pfn, unsigned long *end_pfn); Arguments nid The nid to return the range for. If MAX_NUMNODES, the min and max PFN are returned. start_pfn Passed by reference. On return, it will have the node start_pfn. end_pfn Passed…
get_options – Parse a string into a list of integers Synopsis char *get_options(const char *str, int nints, int *ints); Arguments str String to be parsed nints size of integer array ints integer array Description This function parses a string containing a comma-separated list of integers, a hyphen-separated range of _positive_ integers, or a combination of…
get_option – Parse integer from an option string Synopsis int get_option(char **str, int *pint); Arguments str option string pint (output) integer value parsed from str Description Read an int from an option string; if available accept a subsequent comma as well. Return values: 0 – no int in string 1 – int found, no subsequent…
get_gendisk – get partitioning information for a given device Synopsis struct gendisk *get_gendisk(dev_t devt, int *partno); Arguments devt device to get partitioning information for partno returned partition index Description This function gets the structure containing partitioning information for the given device devt. Copyright
get_futex_key – Get parameters which are the keys for a futex Synopsis int get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key, int rw); Arguments uaddr virtual address of the futex fshared 0 for a PROCESS_PRIVATE futex, 1 for PROCESS_SHARED key address where result is stored. rw mapping needs to be read/write (values: VERIFY_READ, VERIFY_WRITE) Return…
get_ccwdev_by_dev_id – obtain device from a ccw device id Synopsis struct ccw_device *get_ccwdev_by_dev_id(struct ccw_dev_id *dev_id); Arguments dev_id id of the device to be searched Description This function searches all devices attached to the ccw bus for a device matching dev_id. Return If a device is found its reference count is increased and returned; else NULL…
get_ccwdev_by_busid – obtain device from a bus id Synopsis struct ccw_device *get_ccwdev_by_busid(struct ccw_driver *cdrv, const char *bus_id); Arguments cdrv driver the device is owned by bus_id bus id of the device to be searched Description This function searches all devices owned by cdrv for a device with a bus id matching bus_id. Return If a…
get_bbt_block – Get the first valid eraseblock suitable to store a BBT Synopsis int get_bbt_block(struct nand_chip *this, struct nand_bbt_descr *td, struct nand_bbt_descr *md, int chip); Arguments this the NAND device td the BBT description md the mirror BBT descriptor chip the CHIP selector Description This functions returns a positive block number pointing a valid eraseblock…
genphy_update_link – update link status in phydev Synopsis int genphy_update_link(struct phy_device *phydev); Arguments phydev target phy_device struct Description Update the value in phydev->link to reflect the current link value. In order to do this, we need to read the status register twice, keeping the second value. Copyright
genphy_soft_reset – software reset the PHY via BMCR_RESET bit Synopsis int genphy_soft_reset(struct phy_device *phydev); Arguments phydev target phy_device struct Description Perform a software PHY reset using the standard BMCR_RESET bit and poll for the reset bit to be cleared. Return 0 on success, < 0 on failure Copyright
genphy_setup_forced – configures/forces speed/duplex from phydev Synopsis int genphy_setup_forced(struct phy_device *phydev); Arguments phydev target phy_device struct Description Configures MII_BMCR to force speed/duplex to the values in phydev. Assumes that the values are valid. Please see phy_sanitize_settings. Copyright
genphy_restart_aneg – Enable and Restart Autonegotiation Synopsis int genphy_restart_aneg(struct phy_device *phydev); Arguments phydev target phy_device struct Copyright
genphy_read_status – check the link status and update current link state Synopsis int genphy_read_status(struct phy_device *phydev); Arguments phydev target phy_device struct Description Check the link, then figure out the current state by comparing what we advertise with what the link partner advertises. Start by checking the gigabit possibilities, then move on to 10/100. Copyright
genphy_config_aneg – restart auto-negotiation or write BMCR Synopsis int genphy_config_aneg(struct phy_device *phydev); Arguments phydev target phy_device struct Description If auto-negotiation is enabled, we configure the advertising, and then restart auto-negotiation. If it is not enabled, then we write the BMCR. Copyright
genphy_config_advert – sanitize and advertise auto-negotiation parameters Synopsis int genphy_config_advert(struct phy_device *phydev); Arguments phydev target phy_device struct Description Writes MII_ADVERTISE with the appropriate values, after sanitizing the values to make sure we only advertise what is supported. Returns < 0 on error, 0 if the PHY’s advertisement hasn’t changed, and > 0 if it has…
genphy_aneg_done – return auto-negotiation status Synopsis int genphy_aneg_done(struct phy_device *phydev); Arguments phydev target phy_device struct Description Reads the status register and returns 0 either if auto-negotiation is incomplete, or if there was an error. Returns BMSR_ANEGCOMPLETE if auto-negotiation is done. Copyright