scsi/libsas/sas_init.c

179 static int sas_get_linkerrors(struct sas_phy *phy)
181 	if (scsi_is_sas_phy_local(phy)) {
182 		struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
184 		struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
191 	return sas_smp_get_phy_events(phy);
216  * transport_sas_phy_reset - reset a phy and permit libata to manage the link
218  * phy reset request via sysfs in host workqueue context so we know we
221 static int transport_sas_phy_reset(struct sas_phy *phy, int hard_reset)
230 	if (scsi_is_sas_phy_local(phy)) {
231 		struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
233 		struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
241 		struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
243 		struct domain_device *ata_dev = sas_ex_to_ata(ddev, phy->number);
250 			return sas_smp_phy_control(ddev, phy->number, reset_type, NULL);
254 int sas_phy_enable(struct sas_phy *phy, int enable)
264 	if (scsi_is_sas_phy_local(phy)) {
265 		struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
267 		struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
272 			ret = transport_sas_phy_reset(phy, 0);
276 		struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
280 			ret = transport_sas_phy_reset(phy, 0);
282 			ret = sas_smp_phy_control(ddev, phy->number, cmd, NULL);
288 int sas_phy_reset(struct sas_phy *phy, int hard_reset)
293 	if (!phy->enabled)
301 	if (scsi_is_sas_phy_local(phy)) {
302 		struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
304 		struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
310 		struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
312 		ret = sas_smp_phy_control(ddev, phy->number, reset_type, NULL);
318 static int sas_set_phy_speed(struct sas_phy *phy,
324 	     rates->minimum_linkrate > phy->maximum_linkrate) ||
326 	     rates->maximum_linkrate < phy->minimum_linkrate))
330 	    rates->minimum_linkrate < phy->minimum_linkrate_hw)
331 		rates->minimum_linkrate = phy->minimum_linkrate_hw;
334 	    rates->maximum_linkrate > phy->maximum_linkrate_hw)
335 		rates->maximum_linkrate = phy->maximum_linkrate_hw;
337 	if (scsi_is_sas_phy_local(phy)) {
338 		struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
340 		struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
347 		struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
349 		ret = sas_smp_phy_control(ddev, phy->number,
366 		struct asd_sas_phy *phy = ha->sas_phy[i];
368 		memset(phy->attached_sas_addr, 0, SAS_ADDR_SIZE);
369 		phy->frame_rcvd_size = 0;
379 		struct asd_sas_phy *phy = ha->sas_phy[i];
381 		if (phy->suspended)
418 	 * at this point we may be racing the phy coming back (as posted
420 	 * libsas context check that the phy remains suspended before
425 		dev_info(ha->dev, "waiting up to 25 seconds for %d phy%s to resume\n",
429 		struct asd_sas_phy *phy = ha->sas_phy[i];
431 		if (phy->suspended) {
432 			dev_warn(&phy->phy->dev, "resume timeout\n");
433 			sas_notify_phy_event(phy, PHYE_RESUME_TIMEOUT,
485 static void sas_phy_release(struct sas_phy *phy)
487 	kfree(phy->hostdata);
488 	phy->hostdata = NULL;
495 	d->reset_result = transport_sas_phy_reset(d->phy, d->hard_reset);
502 	d->enable_result = sas_phy_enable(d->phy, d->enable);
505 static int sas_phy_setup(struct sas_phy *phy)
515 	d->phy = phy;
516 	phy->hostdata = d;
521 static int queue_phy_reset(struct sas_phy *phy, int hard_reset)
523 	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
525 	struct sas_phy_data *d = phy->hostdata;
550 static int queue_phy_enable(struct sas_phy *phy, int enable)
552 	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
554 	struct sas_phy_data *d = phy->hostdata;
638 struct asd_sas_event *sas_alloc_event(struct asd_sas_phy *phy,
642 	struct sas_ha_struct *sas_ha = phy->ha;
650 	atomic_inc(&phy->event_nr);
652 	if (atomic_read(&phy->event_nr) > phy->ha->event_thres) {
654 			if (cmpxchg(&phy->in_shutdown, 0, 1) == 0) {
655 				pr_notice("The phy%d bursting events, shut it down.\n",
656 					  phy->id);
657 				sas_notify_phy_event(phy, PHYE_SHUTDOWN,
664 			atomic_dec(&phy->event_nr);
674 	struct asd_sas_phy *phy = event->phy;
677 	atomic_dec(&phy->event_nr);