ata_qc_complete – Complete an active ATA command Synopsis void ata_qc_complete(struct ata_queued_cmd *qc); Arguments qc Command to complete Description Indicate to the mid and upper layers that an ATA command has completed, with either an ok or not-ok status. Refrain from calling this function multiple times when successfully completing multiple NCQ commands. ata_qc_complete_multiple should be used…
ata_port_detach – Detach ATA port in preparation of device removal Synopsis void ata_port_detach(struct ata_port *ap); Arguments ap ATA port to be detached Description Detach all ATA devices and the associated SCSI devices of ap; then, remove the associated SCSI host. ap is guaranteed to be quiescent on return from this function. LOCKING: Kernel thread context…
ata_port_alloc – allocate and initialize basic ATA port resources Synopsis struct ata_port *ata_port_alloc(struct ata_host *host); Arguments host ATA host this allocated port belongs to Description Allocate and initialize basic ATA port resources. Return Allocate ATA port on success, NULL on failure. LOCKING: Inherited from calling layer (may sleep). Author Jeff Garzik Author. Copyright
ata_platform_remove_one – Platform layer callback for device removal Synopsis int ata_platform_remove_one(struct platform_device *pdev); Arguments pdev Platform device that was removed Description Platform 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 platform layer (may sleep). Author Jeff…
ata_pio_need_iordy – check if iordy needed Synopsis unsigned int ata_pio_need_iordy(const struct ata_device *adev); Arguments adev ATA device Description Check if the current speed of the device requires IORDY. Used by various controllers for chip configuration. Author Jeff Garzik Author. Copyright
ata_pio_mask_no_iordy – Return the non IORDY mask Synopsis u32 ata_pio_mask_no_iordy(const struct ata_device * adev); Arguments adev ATA device Description Compute the highest mode possible if we are not using iordy. Return -1 if no iordy mode is available. Author Jeff Garzik Author. Copyright
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….