43 	struct ata_port *ap = link->ap;  in sata_scr_valid()  local
45 	return (ap->flags & ATA_FLAG_SATA) && ap->ops->scr_read;  in sata_scr_valid()
56  *	guaranteed to succeed if @link is ap->link, the cable type of
60  *	None if @link is ap->link.  Kernel thread context otherwise.
69 			return link->ap->ops->scr_read(link, reg, val);  in sata_scr_read()
84  *	guaranteed to succeed if @link is ap->link, the cable type of
88  *	None if @link is ap->link.  Kernel thread context otherwise.
97 			return link->ap->ops->scr_write(link, reg, val);  in sata_scr_write()
115  *	None if @link is ap->link.  Kernel thread context otherwise.
126 			rc = link->ap->ops->scr_write(link, reg, val);  in sata_scr_write_flush()
128 				rc = link->ap->ops->scr_read(link, reg, &val);  in sata_scr_write_flush()
256 		ata_msleep(link->ap, interval);  in sata_link_debounce()
323 			ata_msleep(link->ap, 200);  in sata_link_resume()
407 			if (link->ap->host->flags & ATA_HOST_NO_PART)  in sata_link_scr_lpm()
410 			if (link->ap->host->flags & ATA_HOST_NO_SSC)  in sata_link_scr_lpm()
413 			if (link->ap->host->flags & ATA_HOST_NO_DEVSLP)  in sata_link_scr_lpm()
441 	struct ata_link *host_link = &link->ap->link;  in __sata_set_spd_needed()
663 	ata_msleep(link->ap, 1);  in sata_link_hardreset()
677 	if (sata_pmp_supported(link->ap) && ata_is_host_link(link)) {  in sata_link_hardreset()
739  *	@ap: port in question
744  *	requests normally.  ap->qc_active and @qc_active is compared
757 int ata_qc_complete_multiple(struct ata_port *ap, u64 qc_active)  in ata_qc_complete_multiple()  argument
759 	u64 done_mask, ap_qc_active = ap->qc_active;  in ata_qc_complete_multiple()
763 	 * If the internal tag is set on ap->qc_active, then we care about  in ata_qc_complete_multiple()
775 		ata_port_err(ap, "illegal qc_active transition (%08llx->%08llx)\n",  in ata_qc_complete_multiple()
776 			     ap->qc_active, qc_active);  in ata_qc_complete_multiple()
780 	if (ap->ops->qc_ncq_fill_rtf)  in ata_qc_complete_multiple()
781 		ap->ops->qc_ncq_fill_rtf(ap, done_mask);  in ata_qc_complete_multiple()
787 		qc = ata_qc_from_tag(ap, tag);  in ata_qc_complete_multiple()
801  *	@ap: port to initialize slave link for
803  *	Create and initialize slave link for @ap.  This enables slave
826  *	handling, separate @ap->slave_link is used.  All dirty details
845 int ata_slave_link_init(struct ata_port *ap)  in ata_slave_link_init()  argument
849 	WARN_ON(ap->slave_link);  in ata_slave_link_init()
850 	WARN_ON(ap->flags & ATA_FLAG_PMP);  in ata_slave_link_init()
856 	ata_link_init(ap, link, 1);  in ata_slave_link_init()
857 	ap->slave_link = link;  in ata_slave_link_init()
907 static bool ata_scsi_lpm_supported(struct ata_port *ap)  in ata_scsi_lpm_supported()  argument
912 	if ((ap->flags & ATA_FLAG_NO_LPM) || !ap->ops->set_lpm)  in ata_scsi_lpm_supported()
915 	ata_for_each_link(link, ap, EDGE) {  in ata_scsi_lpm_supported()
929 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_lpm_supported_show()  local
933 	spin_lock_irqsave(ap->lock, flags);  in ata_scsi_lpm_supported_show()
934 	supported = ata_scsi_lpm_supported(ap);  in ata_scsi_lpm_supported_show()
935 	spin_unlock_irqrestore(ap->lock, flags);  in ata_scsi_lpm_supported_show()
948 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_lpm_store()  local
963 	spin_lock_irqsave(ap->lock, flags);  in ata_scsi_lpm_store()
965 	if (!ata_scsi_lpm_supported(ap)) {  in ata_scsi_lpm_store()
970 	ap->target_lpm_policy = policy;  in ata_scsi_lpm_store()
971 	ata_port_schedule_eh(ap);  in ata_scsi_lpm_store()
973 	spin_unlock_irqrestore(ap->lock, flags);  in ata_scsi_lpm_store()
981 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_lpm_show()  local
983 	if (ap->target_lpm_policy >= ARRAY_SIZE(ata_lpm_policy_names))  in ata_scsi_lpm_show()
987 			ata_lpm_policy_names[ap->target_lpm_policy]);  in ata_scsi_lpm_show()
995  *	@ap: ATA port of the target device
1001  *	Context: Any context. Takes and releases @ap->lock.
1007 int ata_ncq_prio_supported(struct ata_port *ap, struct scsi_device *sdev,  in ata_ncq_prio_supported()  argument
1014 	spin_lock_irqsave(ap->lock, flags);  in ata_ncq_prio_supported()
1015 	dev = ata_scsi_find_dev(ap, sdev);  in ata_ncq_prio_supported()
1020 	spin_unlock_irqrestore(ap->lock, flags);  in ata_ncq_prio_supported()
1031 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_ncq_prio_supported_show()  local
1035 	rc = ata_ncq_prio_supported(ap, sdev, &supported);  in ata_ncq_prio_supported_show()
1047  *	@ap: ATA port of the target device
1053  *	Context: Any context. Takes and releases @ap->lock.
1059 int ata_ncq_prio_enabled(struct ata_port *ap, struct scsi_device *sdev,  in ata_ncq_prio_enabled()  argument
1066 	spin_lock_irqsave(ap->lock, flags);  in ata_ncq_prio_enabled()
1067 	dev = ata_scsi_find_dev(ap, sdev);  in ata_ncq_prio_enabled()
1072 	spin_unlock_irqrestore(ap->lock, flags);  in ata_ncq_prio_enabled()
1083 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_ncq_prio_enable_show()  local
1087 	rc = ata_ncq_prio_enabled(ap, sdev, &enabled);  in ata_ncq_prio_enable_show()
1096  *	@ap: ATA port of the target device
1102  *	Context: Any context. Takes and releases @ap->lock.
1109 int ata_ncq_prio_enable(struct ata_port *ap, struct scsi_device *sdev,  in ata_ncq_prio_enable()  argument
1116 	spin_lock_irqsave(ap->lock, flags);  in ata_ncq_prio_enable()
1118 	dev = ata_scsi_find_dev(ap, sdev);  in ata_ncq_prio_enable()
1142 	spin_unlock_irqrestore(ap->lock, flags);  in ata_ncq_prio_enable()
1153 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_ncq_prio_enable_store()  local
1161 	rc = ata_ncq_prio_enable(ap, sdev, enable);  in ata_ncq_prio_enable_store()
1194 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_em_message_store()  local
1195 	if (ap->ops->em_store && (ap->flags & ATA_FLAG_EM))  in ata_scsi_em_message_store()
1196 		return ap->ops->em_store(ap, buf, count);  in ata_scsi_em_message_store()
1205 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_em_message_show()  local
1207 	if (ap->ops->em_show && (ap->flags & ATA_FLAG_EM))  in ata_scsi_em_message_show()
1208 		return ap->ops->em_show(ap, buf);  in ata_scsi_em_message_show()
1220 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_em_message_type_show()  local
1222 	return sysfs_emit(buf, "%d\n", ap->em_message_type);  in ata_scsi_em_message_type_show()
1233 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_scsi_activity_show()  local
1234 	struct ata_device *atadev = ata_scsi_find_dev(ap, sdev);  in ata_scsi_activity_show()
1236 	if (atadev && ap->ops->sw_activity_show &&  in ata_scsi_activity_show()
1237 	    (ap->flags & ATA_FLAG_SW_ACTIVITY))  in ata_scsi_activity_show()
1238 		return ap->ops->sw_activity_show(atadev, buf);  in ata_scsi_activity_show()
1247 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_scsi_activity_store()  local
1248 	struct ata_device *atadev = ata_scsi_find_dev(ap, sdev);  in ata_scsi_activity_store()
1252 	if (atadev && ap->ops->sw_activity_store &&  in ata_scsi_activity_store()
1253 	    (ap->flags & ATA_FLAG_SW_ACTIVITY)) {  in ata_scsi_activity_store()
1257 			rc = ap->ops->sw_activity_store(atadev, val);  in ata_scsi_activity_store()
1272  *	@ap: ATA port of the target device
1280 int ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev,  in ata_change_queue_depth()  argument
1287 	spin_lock_irqsave(ap->lock, flags);  in ata_change_queue_depth()
1289 	dev = ata_scsi_find_dev(ap, sdev);  in ata_change_queue_depth()
1291 		spin_unlock_irqrestore(ap->lock, flags);  in ata_change_queue_depth()
1302 		spin_unlock_irqrestore(ap->lock, flags);  in ata_change_queue_depth()
1317 	spin_unlock_irqrestore(ap->lock, flags);  in ata_change_queue_depth()
1343 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_scsi_change_queue_depth()  local
1345 	return ata_change_queue_depth(ap, sdev, queue_depth);  in ata_scsi_change_queue_depth()
1354  *	@ap: ATA port to which SCSI device is attached
1361 			   struct ata_port *ap)  in ata_sas_sdev_configure()  argument
1365 	return ata_scsi_dev_config(sdev, lim, ap->link.device);  in ata_sas_sdev_configure()
1372  *	@ap:	ATA port to which the command is being sent
1379 int ata_sas_queuecmd(struct scsi_cmnd *cmd, struct ata_port *ap)  in ata_sas_queuecmd()  argument
1380 	__must_hold(ap->lock)  in ata_sas_queuecmd()
1382 	if (likely(ata_dev_enabled(ap->link.device)))  in ata_sas_queuecmd()
1383 		return __ata_scsi_queuecmd(cmd, ap->link.device, ap);  in ata_sas_queuecmd()
1394  *	@ap: ATA port where async notification is received
1405 int sata_async_notification(struct ata_port *ap)  in sata_async_notification()  argument
1410 	if (!(ap->flags & ATA_FLAG_AN))  in sata_async_notification()
1413 	rc = sata_scr_read(&ap->link, SCR_NOTIFICATION, &sntf);  in sata_async_notification()
1415 		sata_scr_write(&ap->link, SCR_NOTIFICATION, sntf);  in sata_async_notification()
1417 	if (!sata_pmp_attached(ap) || rc) {  in sata_async_notification()
1419 		if (!sata_pmp_attached(ap)) {  in sata_async_notification()
1424 			struct ata_device *dev = ap->link.device;  in sata_async_notification()
1436 			ata_port_schedule_eh(ap);  in sata_async_notification()
1444 		ata_for_each_link(link, ap, EDGE) {  in sata_async_notification()
1457 			ata_port_schedule_eh(ap);  in sata_async_notification()
1540 	struct ata_port *ap = dev->link->ap;  in ata_eh_get_ncq_success_sense()  local
1570 	ata_qc_for_each_raw(ap, qc, tag) {  in ata_eh_get_ncq_success_sense()
1637 	struct ata_port *ap = link->ap;  in ata_eh_analyze_ncq_error()  local
1645 	if (ata_port_is_frozen(ap))  in ata_eh_analyze_ncq_error()
1653 	ata_qc_for_each_raw(ap, qc, tag) {  in ata_eh_analyze_ncq_error()
1677 	qc = __ata_qc_from_tag(ap, tag);  in ata_eh_analyze_ncq_error()
1699 	ata_qc_for_each_raw(ap, qc, tag) {  in ata_eh_analyze_ncq_error()