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()
583 	ata_msleep(link->ap, 1);  in sata_link_hardreset()
597 	if (sata_pmp_supported(link->ap) && ata_is_host_link(link)) {  in sata_link_hardreset()
631  *	@ap: port in question
636  *	requests normally.  ap->qc_active and @qc_active is compared
649 int ata_qc_complete_multiple(struct ata_port *ap, u64 qc_active)  in ata_qc_complete_multiple()  argument
651 	u64 done_mask, ap_qc_active = ap->qc_active;  in ata_qc_complete_multiple()
655 	 * If the internal tag is set on ap->qc_active, then we care about  in ata_qc_complete_multiple()
667 		ata_port_err(ap, "illegal qc_active transition (%08llx->%08llx)\n",  in ata_qc_complete_multiple()
668 			     ap->qc_active, qc_active);  in ata_qc_complete_multiple()
672 	if (ap->ops->qc_ncq_fill_rtf)  in ata_qc_complete_multiple()
673 		ap->ops->qc_ncq_fill_rtf(ap, done_mask);  in ata_qc_complete_multiple()
679 		qc = ata_qc_from_tag(ap, tag);  in ata_qc_complete_multiple()
693  *	@ap: port to initialize slave link for
695  *	Create and initialize slave link for @ap.  This enables slave
718  *	handling, separate @ap->slave_link is used.  All dirty details
737 int ata_slave_link_init(struct ata_port *ap)  in ata_slave_link_init()  argument
741 	WARN_ON(ap->slave_link);  in ata_slave_link_init()
742 	WARN_ON(ap->flags & ATA_FLAG_PMP);  in ata_slave_link_init()
748 	ata_link_init(ap, link, 1);  in ata_slave_link_init()
749 	ap->slave_link = link;  in ata_slave_link_init()
800 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_lpm_store()  local
817 	spin_lock_irqsave(ap->lock, flags);  in ata_scsi_lpm_store()
819 	ata_for_each_link(link, ap, EDGE) {  in ata_scsi_lpm_store()
820 		ata_for_each_dev(dev, &ap->link, ENABLED) {  in ata_scsi_lpm_store()
828 	ap->target_lpm_policy = policy;  in ata_scsi_lpm_store()
829 	ata_port_schedule_eh(ap);  in ata_scsi_lpm_store()
831 	spin_unlock_irqrestore(ap->lock, flags);  in ata_scsi_lpm_store()
839 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_lpm_show()  local
841 	if (ap->target_lpm_policy >= ARRAY_SIZE(ata_lpm_policy_names))  in ata_scsi_lpm_show()
845 			ata_lpm_policy_names[ap->target_lpm_policy]);  in ata_scsi_lpm_show()
856 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_ncq_prio_supported_show()  local
861 	spin_lock_irq(ap->lock);  in ata_ncq_prio_supported_show()
862 	dev = ata_scsi_find_dev(ap, sdev);  in ata_ncq_prio_supported_show()
867 	spin_unlock_irq(ap->lock);  in ata_ncq_prio_supported_show()
880 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_ncq_prio_enable_show()  local
885 	spin_lock_irq(ap->lock);  in ata_ncq_prio_enable_show()
886 	dev = ata_scsi_find_dev(ap, sdev);  in ata_ncq_prio_enable_show()
891 	spin_unlock_irq(ap->lock);  in ata_ncq_prio_enable_show()
901 	struct ata_port *ap;  in ata_ncq_prio_enable_store()  local
912 	ap = ata_shost_to_port(sdev->host);  in ata_ncq_prio_enable_store()
913 	dev = ata_scsi_find_dev(ap, sdev);  in ata_ncq_prio_enable_store()
917 	spin_lock_irq(ap->lock);  in ata_ncq_prio_enable_store()
937 	spin_unlock_irq(ap->lock);  in ata_ncq_prio_enable_store()
968 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_em_message_store()  local
969 	if (ap->ops->em_store && (ap->flags & ATA_FLAG_EM))  in ata_scsi_em_message_store()
970 		return ap->ops->em_store(ap, buf, count);  in ata_scsi_em_message_store()
979 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_em_message_show()  local
981 	if (ap->ops->em_show && (ap->flags & ATA_FLAG_EM))  in ata_scsi_em_message_show()
982 		return ap->ops->em_show(ap, buf);  in ata_scsi_em_message_show()
994 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_em_message_type_show()  local
996 	return sysfs_emit(buf, "%d\n", ap->em_message_type);  in ata_scsi_em_message_type_show()
1007 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_scsi_activity_show()  local
1008 	struct ata_device *atadev = ata_scsi_find_dev(ap, sdev);  in ata_scsi_activity_show()
1010 	if (atadev && ap->ops->sw_activity_show &&  in ata_scsi_activity_show()
1011 	    (ap->flags & ATA_FLAG_SW_ACTIVITY))  in ata_scsi_activity_show()
1012 		return ap->ops->sw_activity_show(atadev, buf);  in ata_scsi_activity_show()
1021 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_scsi_activity_store()  local
1022 	struct ata_device *atadev = ata_scsi_find_dev(ap, sdev);  in ata_scsi_activity_store()
1026 	if (atadev && ap->ops->sw_activity_store &&  in ata_scsi_activity_store()
1027 	    (ap->flags & ATA_FLAG_SW_ACTIVITY)) {  in ata_scsi_activity_store()
1031 			rc = ap->ops->sw_activity_store(atadev, val);  in ata_scsi_activity_store()
1046  *	@ap: ATA port of the target device
1054 int ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev,  in ata_change_queue_depth()  argument
1061 	spin_lock_irqsave(ap->lock, flags);  in ata_change_queue_depth()
1063 	dev = ata_scsi_find_dev(ap, sdev);  in ata_change_queue_depth()
1065 		spin_unlock_irqrestore(ap->lock, flags);  in ata_change_queue_depth()
1076 		spin_unlock_irqrestore(ap->lock, flags);  in ata_change_queue_depth()
1091 	spin_unlock_irqrestore(ap->lock, flags);  in ata_change_queue_depth()
1117 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_scsi_change_queue_depth()  local
1119 	return ata_change_queue_depth(ap, sdev, queue_depth);  in ata_scsi_change_queue_depth()
1140 	struct ata_port *ap;  in ata_sas_port_alloc()  local
1142 	ap = ata_port_alloc(host);  in ata_sas_port_alloc()
1143 	if (!ap)  in ata_sas_port_alloc()
1146 	ap->port_no = 0;  in ata_sas_port_alloc()
1147 	ap->lock = &host->lock;  in ata_sas_port_alloc()
1148 	ap->pio_mask = port_info->pio_mask;  in ata_sas_port_alloc()
1149 	ap->mwdma_mask = port_info->mwdma_mask;  in ata_sas_port_alloc()
1150 	ap->udma_mask = port_info->udma_mask;  in ata_sas_port_alloc()
1151 	ap->flags |= port_info->flags;  in ata_sas_port_alloc()
1152 	ap->ops = port_info->port_ops;  in ata_sas_port_alloc()
1153 	ap->cbl = ATA_CBL_SATA;  in ata_sas_port_alloc()
1154 	ap->print_id = atomic_inc_return(&ata_print_id);  in ata_sas_port_alloc()
1156 	return ap;  in ata_sas_port_alloc()
1160 int ata_sas_tport_add(struct device *parent, struct ata_port *ap)  in ata_sas_tport_add()  argument
1162 	return ata_tport_add(parent, ap);  in ata_sas_tport_add()
1166 void ata_sas_tport_delete(struct ata_port *ap)  in ata_sas_tport_delete()  argument
1168 	ata_tport_delete(ap);  in ata_sas_tport_delete()
1175  *	@ap: ATA port to which SCSI device is attached
1181 int ata_sas_slave_configure(struct scsi_device *sdev, struct ata_port *ap)  in ata_sas_slave_configure()  argument
1185 	return ata_scsi_dev_config(sdev, ap->link.device);  in ata_sas_slave_configure()
1192  *	@ap:	ATA port to which the command is being sent
1199 int ata_sas_queuecmd(struct scsi_cmnd *cmd, struct ata_port *ap)  in ata_sas_queuecmd()  argument
1203 	if (likely(ata_dev_enabled(ap->link.device)))  in ata_sas_queuecmd()
1204 		rc = __ata_scsi_queuecmd(cmd, ap->link.device);  in ata_sas_queuecmd()
1215  *	@ap: ATA port where async notification is received
1226 int sata_async_notification(struct ata_port *ap)  in sata_async_notification()  argument
1231 	if (!(ap->flags & ATA_FLAG_AN))  in sata_async_notification()
1234 	rc = sata_scr_read(&ap->link, SCR_NOTIFICATION, &sntf);  in sata_async_notification()
1236 		sata_scr_write(&ap->link, SCR_NOTIFICATION, sntf);  in sata_async_notification()
1238 	if (!sata_pmp_attached(ap) || rc) {  in sata_async_notification()
1240 		if (!sata_pmp_attached(ap)) {  in sata_async_notification()
1245 			struct ata_device *dev = ap->link.device;  in sata_async_notification()
1257 			ata_port_schedule_eh(ap);  in sata_async_notification()
1265 		ata_for_each_link(link, ap, EDGE) {  in sata_async_notification()
1278 			ata_port_schedule_eh(ap);  in sata_async_notification()
1305 	u8 *buf = dev->link->ap->sector_buf;  in ata_eh_read_log_10h()
1361 	struct ata_port *ap = dev->link->ap;  in ata_eh_read_sense_success_ncq_log()  local
1362 	u8 *buf = ap->ncq_sense_buf;  in ata_eh_read_sense_success_ncq_log()
1387 	ata_qc_for_each_raw(ap, qc, tag) {  in ata_eh_read_sense_success_ncq_log()
1446 	struct ata_port *ap = link->ap;  in ata_eh_analyze_ncq_error()  local
1454 	if (ata_port_is_frozen(ap))  in ata_eh_analyze_ncq_error()
1462 	ata_qc_for_each_raw(ap, qc, tag) {  in ata_eh_analyze_ncq_error()
1486 	qc = __ata_qc_from_tag(ap, tag);  in ata_eh_analyze_ncq_error()
1510 	ata_qc_for_each_raw(ap, qc, tag) {  in ata_eh_analyze_ncq_error()