41 	struct ata_port *ap = link->ap;  in sata_scr_valid()  local
43 	return (ap->flags & ATA_FLAG_SATA) && ap->ops->scr_read;  in sata_scr_valid()
54  *	guaranteed to succeed if @link is ap->link, the cable type of
58  *	None if @link is ap->link.  Kernel thread context otherwise.
67 			return link->ap->ops->scr_read(link, reg, val);  in sata_scr_read()
82  *	guaranteed to succeed if @link is ap->link, the cable type of
86  *	None if @link is ap->link.  Kernel thread context otherwise.
95 			return link->ap->ops->scr_write(link, reg, val);  in sata_scr_write()
113  *	None if @link is ap->link.  Kernel thread context otherwise.
124 			rc = link->ap->ops->scr_write(link, reg, val);  in sata_scr_write_flush()
126 				rc = link->ap->ops->scr_read(link, reg, &val);  in sata_scr_write_flush()
254 		ata_msleep(link->ap, interval);  in sata_link_debounce()
321 			ata_msleep(link->ap, 200);  in sata_link_resume()
426 	struct ata_link *host_link = &link->ap->link;  in __sata_set_spd_needed()
570 	ata_msleep(link->ap, 1);  in sata_link_hardreset()
584 	if (sata_pmp_supported(link->ap) && ata_is_host_link(link)) {  in sata_link_hardreset()
620  *	@ap: port in question
625  *	requests normally.  ap->qc_active and @qc_active is compared
638 int ata_qc_complete_multiple(struct ata_port *ap, u64 qc_active)  in ata_qc_complete_multiple()  argument
640 	u64 done_mask, ap_qc_active = ap->qc_active;  in ata_qc_complete_multiple()
644 	 * If the internal tag is set on ap->qc_active, then we care about  in ata_qc_complete_multiple()
656 		ata_port_err(ap, "illegal qc_active transition (%08llx->%08llx)\n",  in ata_qc_complete_multiple()
657 			     ap->qc_active, qc_active);  in ata_qc_complete_multiple()
665 		qc = ata_qc_from_tag(ap, tag);  in ata_qc_complete_multiple()
679  *	@ap: port to initialize slave link for
681  *	Create and initialize slave link for @ap.  This enables slave
704  *	handling, separate @ap->slave_link is used.  All dirty details
723 int ata_slave_link_init(struct ata_port *ap)  in ata_slave_link_init()  argument
727 	WARN_ON(ap->slave_link);  in ata_slave_link_init()
728 	WARN_ON(ap->flags & ATA_FLAG_PMP);  in ata_slave_link_init()
734 	ata_link_init(ap, link, 1);  in ata_slave_link_init()
735 	ap->slave_link = link;  in ata_slave_link_init()
786 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_lpm_store()  local
803 	spin_lock_irqsave(ap->lock, flags);  in ata_scsi_lpm_store()
805 	ata_for_each_link(link, ap, EDGE) {  in ata_scsi_lpm_store()
806 		ata_for_each_dev(dev, &ap->link, ENABLED) {  in ata_scsi_lpm_store()
814 	ap->target_lpm_policy = policy;  in ata_scsi_lpm_store()
815 	ata_port_schedule_eh(ap);  in ata_scsi_lpm_store()
817 	spin_unlock_irqrestore(ap->lock, flags);  in ata_scsi_lpm_store()
825 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_lpm_show()  local
827 	if (ap->target_lpm_policy >= ARRAY_SIZE(ata_lpm_policy_names))  in ata_scsi_lpm_show()
831 			ata_lpm_policy_names[ap->target_lpm_policy]);  in ata_scsi_lpm_show()
842 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_ncq_prio_supported_show()  local
847 	spin_lock_irq(ap->lock);  in ata_ncq_prio_supported_show()
848 	dev = ata_scsi_find_dev(ap, sdev);  in ata_ncq_prio_supported_show()
853 	spin_unlock_irq(ap->lock);  in ata_ncq_prio_supported_show()
866 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_ncq_prio_enable_show()  local
871 	spin_lock_irq(ap->lock);  in ata_ncq_prio_enable_show()
872 	dev = ata_scsi_find_dev(ap, sdev);  in ata_ncq_prio_enable_show()
877 	spin_unlock_irq(ap->lock);  in ata_ncq_prio_enable_show()
887 	struct ata_port *ap;  in ata_ncq_prio_enable_store()  local
898 	ap = ata_shost_to_port(sdev->host);  in ata_ncq_prio_enable_store()
899 	dev = ata_scsi_find_dev(ap, sdev);  in ata_ncq_prio_enable_store()
903 	spin_lock_irq(ap->lock);  in ata_ncq_prio_enable_store()
916 	spin_unlock_irq(ap->lock);  in ata_ncq_prio_enable_store()
938 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_em_message_store()  local
939 	if (ap->ops->em_store && (ap->flags & ATA_FLAG_EM))  in ata_scsi_em_message_store()
940 		return ap->ops->em_store(ap, buf, count);  in ata_scsi_em_message_store()
949 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_em_message_show()  local
951 	if (ap->ops->em_show && (ap->flags & ATA_FLAG_EM))  in ata_scsi_em_message_show()
952 		return ap->ops->em_show(ap, buf);  in ata_scsi_em_message_show()
964 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_em_message_type_show()  local
966 	return snprintf(buf, 23, "%d\n", ap->em_message_type);  in ata_scsi_em_message_type_show()
977 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_scsi_activity_show()  local
978 	struct ata_device *atadev = ata_scsi_find_dev(ap, sdev);  in ata_scsi_activity_show()
980 	if (atadev && ap->ops->sw_activity_show &&  in ata_scsi_activity_show()
981 	    (ap->flags & ATA_FLAG_SW_ACTIVITY))  in ata_scsi_activity_show()
982 		return ap->ops->sw_activity_show(atadev, buf);  in ata_scsi_activity_show()
991 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_scsi_activity_store()  local
992 	struct ata_device *atadev = ata_scsi_find_dev(ap, sdev);  in ata_scsi_activity_store()
996 	if (atadev && ap->ops->sw_activity_store &&  in ata_scsi_activity_store()
997 	    (ap->flags & ATA_FLAG_SW_ACTIVITY)) {  in ata_scsi_activity_store()
1001 			rc = ap->ops->sw_activity_store(atadev, val);  in ata_scsi_activity_store()
1016  *	@ap: ATA port to which the device change the queue depth
1024 int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev,  in __ata_change_queue_depth()  argument
1033 	dev = ata_scsi_find_dev(ap, sdev);  in __ata_change_queue_depth()
1038 	spin_lock_irqsave(ap->lock, flags);  in __ata_change_queue_depth()
1044 	spin_unlock_irqrestore(ap->lock, flags);  in __ata_change_queue_depth()
1075 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_scsi_change_queue_depth()  local
1077 	return __ata_change_queue_depth(ap, sdev, queue_depth);  in ata_scsi_change_queue_depth()
1098 	struct ata_port *ap;  in ata_sas_port_alloc()  local
1100 	ap = ata_port_alloc(host);  in ata_sas_port_alloc()
1101 	if (!ap)  in ata_sas_port_alloc()
1104 	ap->port_no = 0;  in ata_sas_port_alloc()
1105 	ap->lock = &host->lock;  in ata_sas_port_alloc()
1106 	ap->pio_mask = port_info->pio_mask;  in ata_sas_port_alloc()
1107 	ap->mwdma_mask = port_info->mwdma_mask;  in ata_sas_port_alloc()
1108 	ap->udma_mask = port_info->udma_mask;  in ata_sas_port_alloc()
1109 	ap->flags |= port_info->flags;  in ata_sas_port_alloc()
1110 	ap->ops = port_info->port_ops;  in ata_sas_port_alloc()
1111 	ap->cbl = ATA_CBL_SATA;  in ata_sas_port_alloc()
1113 	return ap;  in ata_sas_port_alloc()
1119  *	@ap: Port to initialize
1129 int ata_sas_port_start(struct ata_port *ap)  in ata_sas_port_start()  argument
1135 	if (!ap->ops->error_handler)  in ata_sas_port_start()
1136 		ap->pflags &= ~ATA_PFLAG_FROZEN;  in ata_sas_port_start()
1143  *	@ap: Port to shut down
1151 void ata_sas_port_stop(struct ata_port *ap)  in ata_sas_port_stop()  argument
1158  * @ap: Port to probe
1163 void ata_sas_async_probe(struct ata_port *ap)  in ata_sas_async_probe()  argument
1165 	__ata_port_probe(ap);  in ata_sas_async_probe()
1169 int ata_sas_sync_probe(struct ata_port *ap)  in ata_sas_sync_probe()  argument
1171 	return ata_port_probe(ap);  in ata_sas_sync_probe()
1178  *	@ap: SATA port to initialize
1187 int ata_sas_port_init(struct ata_port *ap)  in ata_sas_port_init()  argument
1189 	int rc = ap->ops->port_start(ap);  in ata_sas_port_init()
1193 	ap->print_id = atomic_inc_return(&ata_print_id);  in ata_sas_port_init()
1198 int ata_sas_tport_add(struct device *parent, struct ata_port *ap)  in ata_sas_tport_add()  argument
1200 	return ata_tport_add(parent, ap);  in ata_sas_tport_add()
1204 void ata_sas_tport_delete(struct ata_port *ap)  in ata_sas_tport_delete()  argument
1206 	ata_tport_delete(ap);  in ata_sas_tport_delete()
1212  *	@ap: SATA port to destroy
1216 void ata_sas_port_destroy(struct ata_port *ap)  in ata_sas_port_destroy()  argument
1218 	if (ap->ops->port_stop)  in ata_sas_port_destroy()
1219 		ap->ops->port_stop(ap);  in ata_sas_port_destroy()
1220 	kfree(ap);  in ata_sas_port_destroy()
1227  *	@ap: ATA port to which SCSI device is attached
1233 int ata_sas_slave_configure(struct scsi_device *sdev, struct ata_port *ap)  in ata_sas_slave_configure()  argument
1236 	ata_scsi_dev_config(sdev, ap->link.device);  in ata_sas_slave_configure()
1244  *	@ap:	ATA port to which the command is being sent
1251 int ata_sas_queuecmd(struct scsi_cmnd *cmd, struct ata_port *ap)  in ata_sas_queuecmd()  argument
1255 	ata_scsi_dump_cdb(ap, cmd);  in ata_sas_queuecmd()
1257 	if (likely(ata_dev_enabled(ap->link.device)))  in ata_sas_queuecmd()
1258 		rc = __ata_scsi_queuecmd(cmd, ap->link.device);  in ata_sas_queuecmd()
1267 int ata_sas_allocate_tag(struct ata_port *ap)  in ata_sas_allocate_tag()  argument
1269 	unsigned int max_queue = ap->host->n_tags;  in ata_sas_allocate_tag()
1272 	for (i = 0, tag = ap->sas_last_tag + 1; i < max_queue; i++, tag++) {  in ata_sas_allocate_tag()
1279 		if (!test_and_set_bit(tag, &ap->sas_tag_allocated)) {  in ata_sas_allocate_tag()
1280 			ap->sas_last_tag = tag;  in ata_sas_allocate_tag()
1287 void ata_sas_free_tag(unsigned int tag, struct ata_port *ap)  in ata_sas_free_tag()  argument
1289 	clear_bit(tag, &ap->sas_tag_allocated);  in ata_sas_free_tag()
1294  *	@ap: ATA port where async notification is received
1305 int sata_async_notification(struct ata_port *ap)  in sata_async_notification()  argument
1310 	if (!(ap->flags & ATA_FLAG_AN))  in sata_async_notification()
1313 	rc = sata_scr_read(&ap->link, SCR_NOTIFICATION, &sntf);  in sata_async_notification()
1315 		sata_scr_write(&ap->link, SCR_NOTIFICATION, sntf);  in sata_async_notification()
1317 	if (!sata_pmp_attached(ap) || rc) {  in sata_async_notification()
1319 		if (!sata_pmp_attached(ap)) {  in sata_async_notification()
1324 			struct ata_device *dev = ap->link.device;  in sata_async_notification()
1336 			ata_port_schedule_eh(ap);  in sata_async_notification()
1344 		ata_for_each_link(link, ap, EDGE) {  in sata_async_notification()
1357 			ata_port_schedule_eh(ap);  in sata_async_notification()
1384 	u8 *buf = dev->link->ap->sector_buf;  in ata_eh_read_log_10h()
1436 	struct ata_port *ap = link->ap;  in ata_eh_analyze_ncq_error()  local
1444 	if (ap->pflags & ATA_PFLAG_FROZEN)  in ata_eh_analyze_ncq_error()
1452 	ata_qc_for_each_raw(ap, qc, tag) {  in ata_eh_analyze_ncq_error()
1476 	qc = __ata_qc_from_tag(ap, tag);  in ata_eh_analyze_ncq_error()