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_host_suspend – suspend host Synopsis int ata_host_suspend(struct ata_host *host, pm_message_t mesg); Arguments host host to suspend mesg PM message Description Suspend host. Actual operation is performed by port suspend. Author Jeff Garzik Author. Copyright
ata_host_start – start and freeze ports of an ATA host Synopsis int ata_host_start(struct ata_host *host); Arguments host ATA host to start ports for Description Start and then freeze ports of host. Started status is recorded in host->flags, so this function can be called multiple times. Ports are guaranteed to get started only once. If host->ops…
ata_host_resume – resume host Synopsis void ata_host_resume(struct ata_host *host); Arguments host host to resume Description Resume host. Actual operation is performed by port resume. Author Jeff Garzik Author. Copyright
ata_host_register – register initialized ATA host Synopsis int ata_host_register(struct ata_host *host, struct scsi_host_template *sht); Arguments host ATA host to register sht template for SCSI host Description Register initialized ATA host. host is allocated using ata_host_alloc and fully initialized by LLD. This function starts ports, registers host with ATA and SCSI layers and probe registered devices….
ata_host_init – Initialize a host struct for sas (ipr, libsas) Synopsis void ata_host_init(struct ata_host *host, struct device *dev, struct ata_port_operations *ops); Arguments host host to initialize dev device host is attached to ops port_ops Author Jeff Garzik Author. Copyright
ata_host_detach – Detach all ports of an ATA host Synopsis void ata_host_detach(struct ata_host *host); Arguments host Host to detach Description Detach all ports of host. LOCKING: Kernel thread context (may sleep). Author Jeff Garzik Author. Copyright
ata_host_alloc_pinfo – alloc host and init with port_info array Synopsis struct ata_host *ata_host_alloc_pinfo(struct device *dev, const struct ata_port_info *const *ppi, int n_ports); Arguments dev generic device this host is associated with ppi array of ATA port_info to initialize host with n_ports number of ATA ports attached to this host Description Allocate ATA host and initialize…
ata_host_alloc – allocate and init basic ATA host resources Synopsis struct ata_host *ata_host_alloc(struct device *dev, int max_ports); Arguments dev generic device this host is associated with max_ports maximum number of ATA ports associated with this host Description Allocate and initialize basic ATA host resources. LLD calls this function to allocate a host, initializes it fully…
ata_host_activate – start host, request IRQ and register it Synopsis int ata_host_activate(struct ata_host *host, int irq, irq_handler_t irq_handler, unsigned long irq_flags, struct scsi_host_template *sht); Arguments host target ATA host irq IRQ to request irq_handler irq_handler used when requesting IRQ irq_flags irq_flags used when requesting IRQ sht scsi_host_template to use when registering the host Description After…
ata_get_xlat_func – check if SCSI to ATA translation is possible Synopsis ata_xlat_func_t ata_get_xlat_func(struct ata_device * dev, u8 cmd); Arguments dev ATA device cmd SCSI command opcode to consider Description Look up the SCSI command given, and determine whether the SCSI command is to be translated or simulated. Return Pointer to translation function if possible, NULL if not. Author…
ata_get_identity – Handler for HDIO_GET_IDENTITY ioctl Synopsis int ata_get_identity(struct ata_port *ap, struct scsi_device *sdev, void __user *arg); Arguments ap target port sdev SCSI device to get identify data for arg User buffer area for identify data Description LOCKING: Defined by the SCSI layer. We don’t really care. Return Zero on success, negative errno on error….
ata_gen_ata_sense – generate a SCSI fixed sense block Synopsis void ata_gen_ata_sense(struct ata_queued_cmd *qc); Arguments qc Command that we are erroring out Description Generate sense block for a failed ATA command qc. Descriptor format is used to accommodate LBA48 block address. LOCKING: None. Author Jeff Garzik Author. Copyright
ata_format_sct_write_same – SATL Write Same to ATA SCT Write Same Synopsis size_t ata_format_sct_write_same(struct scsi_cmnd *cmd, u64 lba, u64 num); Arguments cmd SCSI command being translated lba Starting sector num Number of sectors to be zero’d. Description Rewrite the WRITE SAME payload to be an SCT Write Same formatted descriptor. Note Writes a pattern (0’s) in…
ata_format_dsm_trim_descr – SATL Write Same to DSM Trim Synopsis size_t ata_format_dsm_trim_descr(struct scsi_cmnd *cmd, u32 trmax, u64 sector, u32 count); Arguments cmd SCSI command being translated trmax Maximum number of entries that will fit in sector_size bytes. sector Starting sector count Total Range of request in logical sectors Description Rewrite the WRITE SAME descriptor to be…
ata_force_xfermask – force xfermask according to libata.force Synopsis void ata_force_xfermask(struct ata_device *dev); Arguments dev ATA device of interest Description Force xfer_mask according to libata.force and whine about it. For consistency with link selection, device number 15 selects the first device connected to the host link. LOCKING: EH context. Author Jeff Garzik Author. Copyright
ata_force_link_limits – force link limits according to libata.force Synopsis void ata_force_link_limits(struct ata_link *link); Arguments link ATA link of interest Description Force link flags and SATA spd limit according to libata.force and whine about it. When only the port part is specified (e.g. 1:), the limit applies to all links connected to both the host link…
ata_force_horkage – force horkage according to libata.force Synopsis void ata_force_horkage(struct ata_device *dev); Arguments dev ATA device of interest Description Force horkage according to libata.force and whine about it. For consistency with link selection, device number 15 selects the first device connected to the host link. LOCKING: EH context. Author Jeff Garzik Author. Copyright
ata_force_cbl – force cable type according to libata.force Synopsis void ata_force_cbl(struct ata_port *ap); Arguments ap ATA port of interest Description Force cable type according to libata.force and whine about it. The last entry which has matching port number is used, so it can be specified as part of device force parameters. For example, both “a:40c,1.00:udma4”…
ata_finalize_port_ops – finalize ata_port_operations Synopsis void ata_finalize_port_ops(struct ata_port_operations *ops); Arguments ops ata_port_operations to finalize Description An ata_port_operations can inherit from another ops and that ops can again inherit from another. This can go on as many times as necessary as long as there is no loop in the inheritance chain. Ops tables are finalized when…
ata_exec_internal_sg – execute libata internal command Synopsis unsigned ata_exec_internal_sg(struct ata_device *dev, struct ata_taskfile *tf, const u8 *cdb, int dma_dir, struct scatterlist *sgl, unsigned int n_elem, 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…