3  *  libata-core.c - helper library for ATA
15  *	http://www.t13.org (ATA standards, PCI DMA IDE spec)
20  *	http://www.ce-ata.org (CE-ATA: not supported)
23  * low-level ATA host controller drivers.  As such, the API/ABI is
114 MODULE_PARM_DESC(force, "Force ATA configurations including cable type, link speed and transfer mod…
139 MODULE_PARM_DESC(dma, "DMA enable/disable (0x1==ATA, 0x2==ATAPI, 0x4==CF)");
143 MODULE_PARM_DESC(ata_probe_timeout, "Set ATA probing timeout (seconds)");
158 MODULE_DESCRIPTION("Library module for ATA devices");
171  *	@ap: ATA port containing links to iterate
231  *	@link: ATA link containing devices to iterate
284  *	@dev: ATA device to look up physical link for
310  *	@ap: ATA port of interest
342  *	@link: ATA link of interest
394  *	@dev: ATA device of interest
448  *	@dev: ATA device of interest
605  *	ata_tf_read_block - Read block address from ATA taskfile
606  *	@tf: ATA taskfile of interest
607  *	@dev: ATA device @tf belongs to
654  *	ata_build_rw_tf - Build ATA taskfile for given read/write request
655  *	@tf: Target ATA taskfile
656  *	@dev: ATA device @tf belongs to
666  *	Build ATA taskfile @tf for read/write request described by
972  *	ata_dev_classify - determine device type based on ATA-spec signature
973  *	@tf: ATA taskfile register set for device to be identified
976  *	ATA or ATAPI, as per "Signature and persistence" section
977  *	of ATA/PI spec (volume 1, sect 5.14).
992 	 * ATA/ATAPI-7 (d1532v1r1: Feb. 19, 2003) specified separate  in ata_dev_classify()
993 	 * signatures for ATA and ATAPI devices attached on SerialATA,  in ata_dev_classify()
996 	 * for ATA/ATAPI devices.  Then, Serial ATA II: Port  in ata_dev_classify()
999 	 * ATA/ATAPI-7 dropped descriptions about 0x3c/0xc3 and  in ata_dev_classify()
1010 		DPRINTK("found ATA device by sig\n");  in ata_dev_classify()
1025 		DPRINTK("found SEMB device by sig (could be ATA device)\n");  in ata_dev_classify()
1688  *	@adev: ATA device
1722  *	@adev: ATA device
1750  *	identify data. For some RAID controllers and for pre ATA devices
1769  *	performed on ATA devices and ATA_CMD_ID_ATAPI on ATAPI
1903 				"host indicates ignore ATA devices, ignored\n");  in ata_dev_read_id()
1937 		 * IDENTIFY (optional in early ATA)  in ata_dev_read_id()
1938 		 * INITIALIZE DEVICE PARAMETERS (later IDE and ATA)  in ata_dev_read_id()
2051 		ata_dev_warn(dev, "ATA Identify Device Log not supported\n");  in ata_identify_page_supported()
2330 			     "ATA Zoned Information Log not supported\n");  in ata_dev_config_zac()
2393  *	ata_dev_configure - Configure the specified ATA/ATAPI device
2492 	 * common ATA, ATAPI feature tests  in ata_dev_configure()
2501 	/* SCSI only uses 4-char revisions, dump full 8 chars from ATA */  in ata_dev_configure()
2508 	/* ATA-specific feature tests */  in ata_dev_configure()
2517 			snprintf(revbuf, 7, "ATA-%d", ata_id_major_version(id));  in ata_dev_configure()
2737 		ata_dev_warn(dev, "         contact the vendor or visit http://ata.wiki.kernel.org\n");  in ata_dev_configure()
2816  *	ata_bus_probe - Reset and probe ATA bus
2819  *	Master ATA bus probing function.  Initiates a hardware-dependent
2842 		/* If we issue an SRST then an ATA drive (not ATAPI)  in ata_bus_probe()
2845 		 * this is true for ATA or ATAPI. Until we've set a  in ata_bus_probe()
3259 		   ATA devices */  in ata_dev_set_mode()
3309  *	ATA device disk transfer mode (PIO3, UDMA6, etc.).  If
3515  *	@link: ATA link to be reset
3666  *	@dev: target ATA device
3698  *	ata_dev_revalidate - Revalidate ATA device
3722 	/* fail early if !ATA && !ATAPI to avoid issuing [P]IDENTIFY to PMP */  in ata_dev_revalidate()
3830 	{ " 2GB ATA Flash Disk", "ADMA428M",	ATA_HORKAGE_NODMA },
4003 	 * (Return Zero After Trim) flags in the ATA Command Set are
4360  *	Allow low-level driver to filter ATA PACKET commands, returning
4389  *	@qc: ATA command in question
4491 	VPRINTK("ENTER, ata%u\n", ap->print_id);  in ata_sg_setup()
4535  *	ata_qc_new_init - Request an available ATA command, and initialize it
4658  *	ata_qc_complete - Complete an active ATA command
4661  *	Indicate to the mid and upper layers that an ATA command has
4796  *	Prepare an ATA command to submission to device.
4869  *	@link: ATA link to test
4893  *	@link: ATA link to test
4917  *	@link: ATA link to test
4944  *	@link: ATA link to test
5126  * and need to resume ata devices at the domain level, not the per-port
5213  *	@ap: ATA port link is attached to
5282  *	ata_port_alloc - allocate and initialize basic ATA port resources
5283  *	@host: ATA host this allocated port belongs to
5285  *	Allocate and initialize basic ATA port resources.
5288  *	Allocate ATA port on success, NULL on failure.
5389  *	ata_host_alloc - allocate and init basic ATA host resources
5391  *	@max_ports: maximum number of ATA ports associated with this host
5393  *	Allocate and initialize basic ATA host resources.  LLD calls
5403  *	Allocate ATA host on success, NULL on failure.
5417 	/* alloc a container for our list of ATA ports (buses) */  in ata_host_alloc()
5465  *	@ppi: array of ATA port_info to initialize host with
5466  *	@n_ports: number of ATA ports attached to this host
5468  *	Allocate ATA host and initialize with info from @ppi.  If NULL
5473  *	Allocate ATA host on success, NULL on failure.
5580  *	ata_host_start - start and freeze ports of an ATA host
5581  *	@host: ATA host to start ports for
5706 		DPRINTK("ata%u: bus probe begin\n", ap->print_id);  in ata_port_probe()
5708 		DPRINTK("ata%u: bus probe end\n", ap->print_id);  in ata_port_probe()
5737  *	ata_host_register - register initialized ATA host
5738  *	@host: ATA host to register
5741  *	Register initialized ATA host.  @host is allocated using
5743  *	starts ports, registers @host with ATA and SCSI layers and
5837  *	@host: target ATA host
5843  *	After allocating an ATA host and initializing it, most libata
5899  *	ata_port_detach - Detach ATA port in preparation of device removal
5900  *	@ap: ATA port to be detached
5902  *	Detach all ATA devices and the associated SCSI devices of @ap;
5951  *	ata_host_detach - Detach all ports of an ATA host
6281 		printk(KERN_WARNING "ata: failed to extend force table, "  in ata_parse_force_param()
6293 			printk(KERN_WARNING "ata: failed to parse force "  in ata_parse_force_param()
6369  *	ata_msleep - ATA EH owner aware msleep
6370  *	@ap: ATA port to attribute the sleep to
6403  *	@ap: ATA port to wait register for, can be NULL
6411  *	operation for ATA controllers.  This function reads 32bit LE