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_exec_internal – execute libata internal command Synopsis unsigned ata_exec_internal(struct ata_device *dev, struct ata_taskfile *tf, const u8 *cdb, int dma_dir, void *buf, unsigned int buflen, unsigned long timeout); Arguments dev Device to which the command is sent tf Taskfile registers for the command and the result cdb CDB for packet command dma_dir Data transfer direction of…
ata_dump_status – user friendly display of error info Synopsis void ata_dump_status(unsigned id, struct ata_taskfile *tf); Arguments id id of the port in question tf ptr to filled out taskfile Description Decode and dump the ATA error/status registers for the user so that they have some idea what really happened at the non make-believe layer. LOCKING:…
ata_dump_id – IDENTIFY DEVICE info debugging output Synopsis void ata_dump_id(const u16 *id); Arguments id IDENTIFY DEVICE page to dump Description Dump selected 16-bit words from the given IDENTIFY DEVICE page. LOCKING: caller. Author Jeff Garzik Author. Copyright
ata_down_xfermask_limit – adjust dev xfer masks downward Synopsis int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel); Arguments dev Device to adjust xfer masks sel ATA_DNXFER_* selector Description Adjust xfer masks of dev downward. Note that this function does not apply the change. Invoking ata_set_mode afterwards will apply the limit. LOCKING: Inherited from caller. Return 0 on…
ata_do_set_mode – Program timings and issue SET FEATURES – XFER Synopsis int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev); Arguments link link on which timings will be programmed r_failed_dev out parameter for failed device Description Standard implementation of the function used to tune and set ATA device disk transfer mode (PIO3, UDMA6, etc.). If ata_dev_set_mode fails,…
ata_do_dev_read_id – default ID read method Synopsis unsigned int ata_do_dev_read_id(struct ata_device *dev, struct ata_taskfile *tf, u16 *id); Arguments dev device tf proposed taskfile id data buffer Description Issue the identify taskfile and hand back the buffer containing identify data. For some RAID controllers and for pre ATA devices this function is wrapped or replaced by…
ata_dev_xfermask – Compute supported xfermask of the given device Synopsis void ata_dev_xfermask(struct ata_device *dev); Arguments dev Device to compute xfermask for Description Compute supported xfermask of dev and store it in dev->*_mask. This function is responsible for applying all known limits including host controller limits, device blacklist, etc… LOCKING: None. Author Jeff Garzik Author. Copyright
ata_dev_set_xfermode – Issue SET FEATURES – XFER MODE command Synopsis unsigned int ata_dev_set_xfermode(struct ata_device *dev); Arguments dev Device to which command will be sent Description Issue SET FEATURES – XFER MODE command to device dev on port ap. LOCKING: PCI/etc. bus probe sem. Return 0 on success, AC_ERR_* mask otherwise. Author Jeff Garzik Author. Copyright
ata_dev_set_feature – Issue SET FEATURES – SATA FEATURES Synopsis unsigned int ata_dev_set_feature(struct ata_device *dev, u8 enable, u8 feature); Arguments dev Device to which command will be sent enable Whether to enable or disable the feature feature The sector count represents the feature to set Description Issue SET FEATURES – SATA FEATURES command to device dev…
ata_dev_same_device – Determine whether new ID matches configured device Synopsis int ata_dev_same_device(struct ata_device *dev, unsigned int new_class, const u16 *new_id); Arguments dev device to compare against new_class class of the new device new_id IDENTIFY page of the new device Description Compare new_class and new_id against dev and determine whether dev is the device indicated by…
ata_dev_revalidate – Revalidate ATA device Synopsis int ata_dev_revalidate(struct ata_device *dev, unsigned int new_class, unsigned int readid_flags); Arguments dev device to revalidate new_class new class code readid_flags read ID flags Description Re-read IDENTIFY page, make sure dev is still attached to the port and reconfigure it according to the new IDENTIFY page. LOCKING: Kernel thread context…
ata_dev_reread_id – Re-read IDENTIFY data Synopsis int ata_dev_reread_id(struct ata_device *dev, unsigned int readid_flags); Arguments dev target ATA device readid_flags read ID flags Description Re-read IDENTIFY page and make sure dev is still attached to the port. LOCKING: Kernel thread context (may sleep) Return 0 on success, negative errno otherwise Author Jeff Garzik Author. Copyright
ata_dev_read_id – Read ID data from the specified device Synopsis int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class, unsigned int flags, u16 *id); Arguments dev target device p_class pointer to class of the target device (may be changed) flags ATA_READID_* flags id buffer to read IDENTIFY data into Description Read ID data from the specified device….
ata_dev_phys_link – find physical link for a device Synopsis struct ata_link *ata_dev_phys_link(struct ata_device *dev); Arguments dev ATA device to look up physical link for Description Look up physical link which dev is attached to. Note that this is different from dev->link only when dev is on slave link. For all other cases, it’s the same…
ata_dev_pair – return other device on cable Synopsis struct ata_device *ata_dev_pair(struct ata_device *adev); Arguments adev device Description Obtain the other device on the same cable, or if none is present NULL is returned Author Jeff Garzik Author. Copyright
ata_dev_next – device iteration helper Synopsis struct ata_device *ata_dev_next(struct ata_device *dev, struct ata_link *link, enum ata_dev_iter_mode mode); Arguments dev the previous device, NULL to start link ATA link containing devices to iterate mode iteration mode, one of ATA_DITER_* Description LOCKING: Host lock or EH context. Return Pointer to the next device. Author Jeff Garzik Author….
ata_dev_init_params – Issue INIT DEV PARAMS command Synopsis unsigned int ata_dev_init_params(struct ata_device *dev, u16 heads, u16 sectors); Arguments dev Device to which command will be sent heads Number of heads (taskfile parameter) sectors Number of sectors (taskfile parameter) Description LOCKING: Kernel thread context (may sleep) Return 0 on success, AC_ERR_* mask otherwise. Author Jeff Garzik…
ata_dev_init – Initialize an ata_device structure Synopsis void ata_dev_init(struct ata_device *dev); Arguments dev Device structure to initialize Description Initialize dev in preparation for probing. LOCKING: Inherited from caller. Author Jeff Garzik Author. Copyright
ata_dev_configure – Configure the specified ATA/ATAPI device Synopsis int ata_dev_configure(struct ata_device *dev); Arguments dev Target device to configure Description Configure dev according to dev->id. Generic and low-level driver specific fixups are also applied. LOCKING: Kernel thread context (may sleep) Return 0 on success, -errno otherwise Author Jeff Garzik Author. Copyright
ata_dev_classify – determine device type based on ATA-spec signature Synopsis unsigned int ata_dev_classify(const struct ata_taskfile *tf); Arguments tf ATA taskfile register set for device to be identified Description Determine from taskfile register contents whether a device is ATA or ATAPI, as per “Signature and persistence” section of ATA/PI spec (volume 1, sect 5.14). LOCKING: None….