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2024-05-11 04dd17822334871b23ea2862f7798fb0e0007777 
 kernel/drivers/scsi/libsas/sas_scsi_host.c
....@@ -1,26 +1,9 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * Serial Attached SCSI (SAS) class SCSI Host glue.
34  *
45  * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
56  * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
6
- *
7
- * This file is licensed under GPLv2.
8
- *
9
- * This program is free software; you can redistribute it and/or
10
- * modify it under the terms of the GNU General Public License as
11
- * published by the Free Software Foundation; either version 2 of the
12
- * License, or (at your option) any later version.
13
- *
14
- * This program is distributed in the hope that it will be useful, but
15
- * WITHOUT ANY WARRANTY; without even the implied warranty of
16
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17
- * General Public License for more details.
18
- *
19
- * You should have received a copy of the GNU General Public License
20
- * along with this program; if not, write to the Free Software
21
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22
- * USA
23
- *
247  */
258 
269 #include <linux/kthread.h>
....@@ -93,9 +76,8 @@
9376 				hs = DID_ERROR;
9477 			break;
9578 		case SAS_PROTO_RESPONSE:
96
-			SAS_DPRINTK("LLDD:%s sent SAS_PROTO_RESP for an SSP "
97
-				    "task; please report this\n",
98
-				    task->dev->port->ha->sas_ha_name);
79
+			pr_notice("LLDD:%s sent SAS_PROTO_RESP for an SSP task; please report this\n",
80
+				  task->dev->port->ha->sas_ha_name);
9981 			break;
10082 		case SAS_ABORTED_TASK:
10183 			hs = DID_ABORT;
....@@ -132,12 +114,12 @@
132114 
133115 	if (unlikely(!task)) {
134116 		/* task will be completed by the error handler */
135
-		SAS_DPRINTK("task done but aborted\n");
117
+		pr_debug("task done but aborted\n");
136118 		return;
137119 	}
138120 
139121 	if (unlikely(!sc)) {
140
-		SAS_DPRINTK("task_done called with non existing SCSI cmnd!\n");
122
+		pr_debug("task_done called with non existing SCSI cmnd!\n");
141123 		sas_free_task(task);
142124 		return;
143125 	}
....@@ -208,7 +190,7 @@
208190 	return 0;
209191 
210192 out_free_task:
211
-	SAS_DPRINTK("lldd_execute_task returned: %d\n", res);
193
+	pr_debug("lldd_execute_task returned: %d\n", res);
212194 	ASSIGN_SAS_TASK(cmd, NULL);
213195 	sas_free_task(task);
214196 	if (res == -SAS_QUEUE_FULL)
....@@ -301,40 +283,38 @@
301283 		to_sas_internal(task->dev->port->ha->core.shost->transportt);
302284 
303285 	for (i = 0; i < 5; i++) {
304
-		SAS_DPRINTK("%s: aborting task 0x%p\n", __func__, task);
286
+		pr_notice("%s: aborting task 0x%p\n", __func__, task);
305287 		res = si->dft->lldd_abort_task(task);
306288 
307289 		spin_lock_irqsave(&task->task_state_lock, flags);
308290 		if (task->task_state_flags & SAS_TASK_STATE_DONE) {
309291 			spin_unlock_irqrestore(&task->task_state_lock, flags);
310
-			SAS_DPRINTK("%s: task 0x%p is done\n", __func__,
311
-				    task);
292
+			pr_debug("%s: task 0x%p is done\n", __func__, task);
312293 			return TASK_IS_DONE;
313294 		}
314295 		spin_unlock_irqrestore(&task->task_state_lock, flags);
315296 
316297 		if (res == TMF_RESP_FUNC_COMPLETE) {
317
-			SAS_DPRINTK("%s: task 0x%p is aborted\n",
318
-				    __func__, task);
298
+			pr_notice("%s: task 0x%p is aborted\n",
299
+				  __func__, task);
319300 			return TASK_IS_ABORTED;
320301 		} else if (si->dft->lldd_query_task) {
321
-			SAS_DPRINTK("%s: querying task 0x%p\n",
322
-				    __func__, task);
302
+			pr_notice("%s: querying task 0x%p\n", __func__, task);
323303 			res = si->dft->lldd_query_task(task);
324304 			switch (res) {
325305 			case TMF_RESP_FUNC_SUCC:
326
-				SAS_DPRINTK("%s: task 0x%p at LU\n",
327
-					    __func__, task);
306
+				pr_notice("%s: task 0x%p at LU\n", __func__,
307
+					  task);
328308 				return TASK_IS_AT_LU;
329309 			case TMF_RESP_FUNC_COMPLETE:
330
-				SAS_DPRINTK("%s: task 0x%p not at LU\n",
331
-					    __func__, task);
310
+				pr_notice("%s: task 0x%p not at LU\n",
311
+					  __func__, task);
332312 				return TASK_IS_NOT_AT_LU;
333313 			case TMF_RESP_FUNC_FAILED:
334
-                                SAS_DPRINTK("%s: task 0x%p failed to abort\n",
335
-                                                __func__, task);
336
-                                return TASK_ABORT_FAILED;
337
-                        }
314
+				pr_notice("%s: task 0x%p failed to abort\n",
315
+					  __func__, task);
316
+				return TASK_ABORT_FAILED;
317
+			}
338318 
339319 		}
340320 	}
....@@ -350,9 +330,9 @@
350330 
351331 	int_to_scsilun(cmd->device->lun, &lun);
352332 
353
-	SAS_DPRINTK("eh: device %llx LUN %llx has the task\n",
354
-		    SAS_ADDR(dev->sas_addr),
355
-		    cmd->device->lun);
333
+	pr_notice("eh: device %016llx LUN 0x%llx has the task\n",
334
+		  SAS_ADDR(dev->sas_addr),
335
+		  cmd->device->lun);
356336 
357337 	if (i->dft->lldd_abort_task_set)
358338 		res = i->dft->lldd_abort_task_set(dev, lun.scsi_lun);
....@@ -376,8 +356,8 @@
376356 	struct sas_internal *i =
377357 		to_sas_internal(dev->port->ha->core.shost->transportt);
378358 
379
-	SAS_DPRINTK("I_T nexus reset for dev %016llx\n",
380
-		    SAS_ADDR(dev->sas_addr));
359
+	pr_notice("I_T nexus reset for dev %016llx\n",
360
+		  SAS_ADDR(dev->sas_addr));
381361 
382362 	if (i->dft->lldd_I_T_nexus_reset)
383363 		res = i->dft->lldd_I_T_nexus_reset(dev);
....@@ -434,7 +414,6 @@
434414 		goto retry;
435415 	}
436416 }
437
-EXPORT_SYMBOL(sas_wait_eh);
438417 
439418 static int sas_queue_reset(struct domain_device *dev, int reset_type,
440419 			   u64 lun, int wait)
....@@ -471,9 +450,9 @@
471450 			return SUCCESS;
472451 	}
473452 
474
-	SAS_DPRINTK("%s reset of %s failed\n",
475
-		    reset_type == SAS_DEV_LU_RESET ? "LUN" : "Bus",
476
-		    dev_name(&dev->rphy->dev));
453
+	pr_warn("%s reset of %s failed\n",
454
+		reset_type == SAS_DEV_LU_RESET ? "LUN" : "Bus",
455
+		dev_name(&dev->rphy->dev));
477456 
478457 	return FAILED;
479458 }
....@@ -501,7 +480,7 @@
501480 	if (task)
502481 		res = i->dft->lldd_abort_task(task);
503482 	else
504
-		SAS_DPRINTK("no task to abort\n");
483
+		pr_notice("no task to abort\n");
505484 	if (res == TMF_RESP_FUNC_SUCC || res == TMF_RESP_FUNC_COMPLETE)
506485 		return SUCCESS;
507486 
....@@ -612,49 +591,48 @@
612591 		spin_unlock_irqrestore(&task->task_state_lock, flags);
613592 
614593 		if (need_reset) {
615
-			SAS_DPRINTK("%s: task 0x%p requests reset\n",
616
-				    __func__, task);
594
+			pr_notice("%s: task 0x%p requests reset\n",
595
+				  __func__, task);
617596 			goto reset;
618597 		}
619598 
620
-		SAS_DPRINTK("trying to find task 0x%p\n", task);
599
+		pr_debug("trying to find task 0x%p\n", task);
621600 		res = sas_scsi_find_task(task);
622601 
623602 		switch (res) {
624603 		case TASK_IS_DONE:
625
-			SAS_DPRINTK("%s: task 0x%p is done\n", __func__,
604
+			pr_notice("%s: task 0x%p is done\n", __func__,
626605 				    task);
627606 			sas_eh_finish_cmd(cmd);
628607 			continue;
629608 		case TASK_IS_ABORTED:
630
-			SAS_DPRINTK("%s: task 0x%p is aborted\n",
631
-				    __func__, task);
609
+			pr_notice("%s: task 0x%p is aborted\n",
610
+				  __func__, task);
632611 			sas_eh_finish_cmd(cmd);
633612 			continue;
634613 		case TASK_IS_AT_LU:
635
-			SAS_DPRINTK("task 0x%p is at LU: lu recover\n", task);
614
+			pr_info("task 0x%p is at LU: lu recover\n", task);
636615  reset:
637616 			tmf_resp = sas_recover_lu(task->dev, cmd);
638617 			if (tmf_resp == TMF_RESP_FUNC_COMPLETE) {
639
-				SAS_DPRINTK("dev %016llx LU %llx is "
640
-					    "recovered\n",
641
-					    SAS_ADDR(task->dev),
642
-					    cmd->device->lun);
618
+				pr_notice("dev %016llx LU 0x%llx is recovered\n",
619
+					  SAS_ADDR(task->dev),
620
+					  cmd->device->lun);
643621 				sas_eh_finish_cmd(cmd);
644622 				sas_scsi_clear_queue_lu(work_q, cmd);
645623 				goto Again;
646624 			}
647
-			/* fallthrough */
625
+			fallthrough;
648626 		case TASK_IS_NOT_AT_LU:
649627 		case TASK_ABORT_FAILED:
650
-			SAS_DPRINTK("task 0x%p is not at LU: I_T recover\n",
651
-				    task);
628
+			pr_notice("task 0x%p is not at LU: I_T recover\n",
629
+				  task);
652630 			tmf_resp = sas_recover_I_T(task->dev);
653631 			if (tmf_resp == TMF_RESP_FUNC_COMPLETE ||
654632 			    tmf_resp == -ENODEV) {
655633 				struct domain_device *dev = task->dev;
656
-				SAS_DPRINTK("I_T %016llx recovered\n",
657
-					    SAS_ADDR(task->dev->sas_addr));
634
+				pr_notice("I_T %016llx recovered\n",
635
+					  SAS_ADDR(task->dev->sas_addr));
658636 				sas_eh_finish_cmd(cmd);
659637 				sas_scsi_clear_queue_I_T(work_q, dev);
660638 				goto Again;
....@@ -663,12 +641,12 @@
663641 			try_to_reset_cmd_device(cmd);
664642 			if (i->dft->lldd_clear_nexus_port) {
665643 				struct asd_sas_port *port = task->dev->port;
666
-				SAS_DPRINTK("clearing nexus for port:%d\n",
667
-					    port->id);
644
+				pr_debug("clearing nexus for port:%d\n",
645
+					  port->id);
668646 				res = i->dft->lldd_clear_nexus_port(port);
669647 				if (res == TMF_RESP_FUNC_COMPLETE) {
670
-					SAS_DPRINTK("clear nexus port:%d "
671
-						    "succeeded\n", port->id);
648
+					pr_notice("clear nexus port:%d succeeded\n",
649
+						  port->id);
672650 					sas_eh_finish_cmd(cmd);
673651 					sas_scsi_clear_queue_port(work_q,
674652 								  port);
....@@ -676,11 +654,10 @@
676654 				}
677655 			}
678656 			if (i->dft->lldd_clear_nexus_ha) {
679
-				SAS_DPRINTK("clear nexus ha\n");
657
+				pr_debug("clear nexus ha\n");
680658 				res = i->dft->lldd_clear_nexus_ha(ha);
681659 				if (res == TMF_RESP_FUNC_COMPLETE) {
682
-					SAS_DPRINTK("clear nexus ha "
683
-						    "succeeded\n");
660
+					pr_notice("clear nexus ha succeeded\n");
684661 					sas_eh_finish_cmd(cmd);
685662 					goto clear_q;
686663 				}
....@@ -689,10 +666,9 @@
689666 			 * of effort could recover from errors.  Quite
690667 			 * possibly the HA just disappeared.
691668 			 */
692
-			SAS_DPRINTK("error from  device %llx, LUN %llx "
693
-				    "couldn't be recovered in any way\n",
694
-				    SAS_ADDR(task->dev->sas_addr),
695
-				    cmd->device->lun);
669
+			pr_err("error from device %016llx, LUN 0x%llx couldn't be recovered in any way\n",
670
+			       SAS_ADDR(task->dev->sas_addr),
671
+			       cmd->device->lun);
696672 
697673 			sas_eh_finish_cmd(cmd);
698674 			goto clear_q;
....@@ -704,7 +680,7 @@
704680 	return;
705681 
706682  clear_q:
707
-	SAS_DPRINTK("--- Exit %s -- clear_q\n", __func__);
683
+	pr_debug("--- Exit %s -- clear_q\n", __func__);
708684 	list_for_each_entry_safe(cmd, n, work_q, eh_entry)
709685 		sas_eh_finish_cmd(cmd);
710686 	goto out;
....@@ -758,8 +734,8 @@
758734 	list_splice_init(&shost->eh_cmd_q, &eh_work_q);
759735 	spin_unlock_irq(shost->host_lock);
760736 
761
-	SAS_DPRINTK("Enter %s busy: %d failed: %d\n",
762
-		    __func__, scsi_host_busy(shost), shost->host_failed);
737
+	pr_notice("Enter %s busy: %d failed: %d\n",
738
+		  __func__, scsi_host_busy(shost), shost->host_failed);
763739 	/*
764740 	 * Deal with commands that still have SAS tasks (i.e. they didn't
765741 	 * complete via the normal sas_task completion mechanism),
....@@ -800,12 +776,12 @@
800776 	if (retry)
801777 		goto retry;
802778 
803
-	SAS_DPRINTK("--- Exit %s: busy: %d failed: %d tries: %d\n",
804
-		    __func__, scsi_host_busy(shost),
805
-		    shost->host_failed, tries);
779
+	pr_notice("--- Exit %s: busy: %d failed: %d tries: %d\n",
780
+		  __func__, scsi_host_busy(shost),
781
+		  shost->host_failed, tries);
806782 }
807783 
808
-int sas_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
784
+int sas_ioctl(struct scsi_device *sdev, unsigned int cmd, void __user *arg)
809785 {
810786 	struct domain_device *dev = sdev_to_domain_dev(sdev);
811787 
....@@ -875,9 +851,8 @@
875851 	if (scsi_dev->tagged_supported) {
876852 		scsi_change_queue_depth(scsi_dev, SAS_DEF_QD);
877853 	} else {
878
-		SAS_DPRINTK("device %llx, LUN %llx doesn't support "
879
-			    "TCQ\n", SAS_ADDR(dev->sas_addr),
880
-			    scsi_dev->lun);
854
+		pr_notice("device %016llx, LUN 0x%llx doesn't support TCQ\n",
855
+			  SAS_ADDR(dev->sas_addr), scsi_dev->lun);
881856 		scsi_change_queue_depth(scsi_dev, 1);
882857 	}
883858 
....@@ -930,16 +905,10 @@
930905 		return;
931906 	}
932907 
933
-	if (dev_is_sata(task->dev)) {
908
+	if (dev_is_sata(task->dev))
934909 		sas_ata_task_abort(task);
935
-	} else {
936
-		struct request_queue *q = sc->device->request_queue;
937
-		unsigned long flags;
938
-
939
-		spin_lock_irqsave(q->queue_lock, flags);
910
+	else
940911 		blk_abort_request(sc->request);
941
-		spin_unlock_irqrestore(q->queue_lock, flags);
942
-	}
943912 }
944913 
945914 int sas_slave_alloc(struct scsi_device *sdev)