The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
ata_phys_link_online – test whether the given link is online Synopsis bool ata_phys_link_online(struct ata_link * link); Arguments link ATA link to test Description Test whether link is online. Note that this function returns 0 if online status of link cannot be obtained, so ata_link_online(link) != !ata_link_offline(link). LOCKING: None. Return True if the port online status is available and…
ata_phys_link_offline – test whether the given link is offline Synopsis bool ata_phys_link_offline(struct ata_link * link); Arguments link ATA link to test Description Test whether link is offline. Note that this function returns 0 if offline status of link cannot be obtained, so ata_link_online(link) != !ata_link_offline(link). LOCKING: None. Return True if the port offline status is available and…
ata_pci_remove_one – PCI layer callback for device removal Synopsis void ata_pci_remove_one(struct pci_dev *pdev); Arguments pdev PCI device that was removed Description PCI layer indicates to libata via this hook that hot-unplug or module unload event has occurred. Detach all ports. Resource release is handled via devres. LOCKING: Inherited from PCI layer (may sleep). Author Jeff…
ata_pack_xfermask – Pack pio, mwdma and udma masks into xfer_mask Synopsis unsigned long ata_pack_xfermask(unsigned long pio_mask, unsigned long mwdma_mask, unsigned long udma_mask); Arguments pio_mask pio_mask mwdma_mask mwdma_mask udma_mask udma_mask Description Pack pio_mask, mwdma_mask and udma_mask into a single unsigned int xfer_mask. LOCKING: None. Return Packed xfer_mask. Author Jeff Garzik Author. Copyright
ata_msleep – ATA EH owner aware msleep Synopsis void ata_msleep(struct ata_port *ap, unsigned int msecs); Arguments ap ATA port to attribute the sleep to msecs duration to sleep in milliseconds Description Sleeps msecs. If the current task is owner of ap‘s EH, the ownership is released before going to sleep and reacquired after the sleep…
ata_msense_rw_recovery – Simulate MODE SENSE r/w error recovery page Synopsis unsigned int ata_msense_rw_recovery(u8 *buf, bool changeable); Arguments buf output buffer changeable whether changeable parameters are requested Description Generate a generic MODE SENSE r/w error recovery page. LOCKING: None. Author Jeff Garzik Author. Copyright
ata_msense_control – Simulate MODE SENSE control mode page Synopsis unsigned int ata_msense_control(struct ata_device *dev, u8 *buf, bool changeable); Arguments dev ATA device of interest buf output buffer changeable whether changeable parameters are requested Description Generate a generic MODE SENSE control mode page. LOCKING: None. Author Jeff Garzik Author. Copyright
ata_msense_caching – Simulate MODE SENSE caching info page Synopsis unsigned int ata_msense_caching(u16 *id, u8 *buf, bool changeable); Arguments id device IDENTIFY data buf output buffer changeable whether changeable parameters are requested Description Generate a caching info page, which conditionally indicates write caching to the SCSI layer, depending on device capabilities. LOCKING: None. Author Jeff Garzik…
ata_mselect_control – Simulate MODE SELECT for control page Synopsis int ata_mselect_control(struct ata_queued_cmd *qc, const u8 *buf, int len, u16 *fp); Arguments qc Storage for translated ATA taskfile buf input buffer len number of valid bytes in the input buffer fp out parameter for the failed field on error Description Prepare a taskfile to modify caching…
ata_mselect_caching – Simulate MODE SELECT for caching info page Synopsis int ata_mselect_caching(struct ata_queued_cmd *qc, const u8 *buf, int len, u16 *fp); Arguments qc Storage for translated ATA taskfile buf input buffer len number of valid bytes in the input buffer fp out parameter for the failed field on error Description Prepare a taskfile to modify…
ata_mode_string – convert xfer_mask to string Synopsis const char *ata_mode_string(unsigned long xfer_mask); Arguments xfer_mask mask of bits supported; only highest bit counts. Description Determine string which represents the highest speed (highest bit in modemask). LOCKING: None. Return Constant C string representing highest speed listed in mode_mask, or the constant C string “<n/a>”. Author Jeff Garzik…
ata_link_online – test whether the given link is online Synopsis bool ata_link_online(struct ata_link * link); Arguments link ATA link to test Description Test whether link is online. This is identical to ata_phys_link_online when there’s no slave link. When there’s a slave link, this function should only be called on the master link and will return true if…
ata_link_offline – test whether the given link is offline Synopsis bool ata_link_offline(struct ata_link * link); Arguments link ATA link to test Description Test whether link is offline. This is identical to ata_phys_link_offline when there’s no slave link. When there’s a slave link, this function should only be called on the master link and will return true if…
ata_link_next – link iteration helper Synopsis struct ata_link *ata_link_next(struct ata_link *link, struct ata_port *ap, enum ata_link_iter_mode mode); Arguments link the previous link, NULL to start ap ATA port containing links to iterate mode iteration mode, one of ATA_LITER_* Description LOCKING: Host lock or EH context. Return Pointer to the next link. Author Jeff Garzik Author….
ata_link_init – Initialize an ata_link structure Synopsis void ata_link_init(struct ata_port *ap, struct ata_link *link, int pmp); Arguments ap ATA port link is attached to link Link structure to initialize pmp Port multiplier port number Description Initialize link. LOCKING: Kernel thread context (may sleep) Author Jeff Garzik Author. Copyright
ata_is_40wire – check drive side detection Synopsis int ata_is_40wire(struct ata_device *dev); Arguments dev device Description Perform drive side detection decoding, allowing for device vendors who can’t follow the documentation. Author Jeff Garzik Author. Copyright
ata_id_xfermask – Compute xfermask from the given IDENTIFY data Synopsis unsigned long ata_id_xfermask(const u16 *id); Arguments id IDENTIFY data to compute xfer mask from Description Compute the xfermask for this device. This is not as trivial as it seems if we must consider early devices correctly. FIXME: pre IDE drive timing (do we care ?)….
ata_id_string – Convert IDENTIFY DEVICE page into string Synopsis void ata_id_string(const u16 *id, unsigned char *s, unsigned int ofs, unsigned int len); Arguments id IDENTIFY DEVICE results we will examine s string into which data is output ofs offset into identify device page len length of string to return. must be an even number. Description…
ata_id_c_string – Convert IDENTIFY DEVICE page into C string Synopsis void ata_id_c_string(const u16 *id, unsigned char *s, unsigned int ofs, unsigned int len); Arguments id IDENTIFY DEVICE results we will examine s string into which data is output ofs offset into identify device page len length of string to return. must be an odd number….
ata_hpa_resize – Resize a device with an HPA set Synopsis int ata_hpa_resize(struct ata_device *dev); Arguments dev Device to resize Description Read the size of an LBA28 or LBA48 disk with HPA features and resize it if required to the full size of the media. The caller must check the drive has the HPA feature set…