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2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c 
 kernel/drivers/scsi/libsas/sas_expander.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0
12 /*
23  * Serial Attached SCSI (SAS) Expander discovery and configuration
34  *
....@@ -5,26 +6,12 @@
56  * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
67  *
78  * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
22
- *
239  */
2410 
2511 #include <linux/scatterlist.h>
2612 #include <linux/blkdev.h>
2713 #include <linux/slab.h>
14
+#include <asm/unaligned.h>
2815 
2916 #include "sas_internal.h"
3017 
....@@ -98,23 +85,23 @@
9885 		res = i->dft->lldd_execute_task(task, GFP_KERNEL);
9986 
10087 		if (res) {
101
-			del_timer(&task->slow_task->timer);
102
-			SAS_DPRINTK("executing SMP task failed:%d\n", res);
88
+			del_timer_sync(&task->slow_task->timer);
89
+			pr_notice("executing SMP task failed:%d\n", res);
10390 			break;
10491 		}
10592 
10693 		wait_for_completion(&task->slow_task->completion);
10794 		res = -ECOMM;
10895 		if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
109
-			SAS_DPRINTK("smp task timed out or aborted\n");
96
+			pr_notice("smp task timed out or aborted\n");
11097 			i->dft->lldd_abort_task(task);
11198 			if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
112
-				SAS_DPRINTK("SMP task aborted and not done\n");
99
+				pr_notice("SMP task aborted and not done\n");
113100 				break;
114101 			}
115102 		}
116103 		if (task->task_status.resp == SAS_TASK_COMPLETE &&
117
-		    task->task_status.stat == SAM_STAT_GOOD) {
104
+		    task->task_status.stat == SAS_SAM_STAT_GOOD) {
118105 			res = 0;
119106 			break;
120107 		}
....@@ -134,11 +121,11 @@
134121 		    task->task_status.stat == SAS_DEVICE_UNKNOWN)
135122 			break;
136123 		else {
137
-			SAS_DPRINTK("%s: task to dev %016llx response: 0x%x "
138
-				    "status 0x%x\n", __func__,
139
-				    SAS_ADDR(dev->sas_addr),
140
-				    task->task_status.resp,
141
-				    task->task_status.stat);
124
+			pr_notice("%s: task to dev %016llx response: 0x%x status 0x%x\n",
125
+				  __func__,
126
+				  SAS_ADDR(dev->sas_addr),
127
+				  task->task_status.resp,
128
+				  task->task_status.stat);
142129 			sas_free_task(task);
143130 			task = NULL;
144131 		}
....@@ -347,11 +334,11 @@
347334 	if (test_bit(SAS_HA_ATA_EH_ACTIVE, &ha->state))
348335 		set_bit(DISCE_REVALIDATE_DOMAIN, &dev->port->disc.pending);
349336 
350
-	SAS_DPRINTK("%sex %016llx phy%02d:%c:%X attached: %016llx (%s)\n",
351
-		    test_bit(SAS_HA_ATA_EH_ACTIVE, &ha->state) ? "ata: " : "",
352
-		    SAS_ADDR(dev->sas_addr), phy->phy_id,
353
-		    sas_route_char(dev, phy), phy->linkrate,
354
-		    SAS_ADDR(phy->attached_sas_addr), type);
337
+	pr_debug("%sex %016llx phy%02d:%c:%X attached: %016llx (%s)\n",
338
+		 test_bit(SAS_HA_ATA_EH_ACTIVE, &ha->state) ? "ata: " : "",
339
+		 SAS_ADDR(dev->sas_addr), phy->phy_id,
340
+		 sas_route_char(dev, phy), phy->linkrate,
341
+		 SAS_ADDR(phy->attached_sas_addr), type);
355342 }
356343 
357344 /* check if we have an existing attached ata device on this expander phy */
....@@ -393,7 +380,7 @@
393380 		return res;
394381 	dr = &((struct smp_resp *)disc_resp)->disc;
395382 	if (memcmp(dev->sas_addr, dr->attached_sas_addr, SAS_ADDR_SIZE) == 0) {
396
-		sas_printk("Found loopback topology, just ignore it!\n");
383
+		pr_notice("Found loopback topology, just ignore it!\n");
397384 		return 0;
398385 	}
399386 	sas_set_ex_phy(dev, single, disc_resp);
....@@ -440,7 +427,7 @@
440427 static int sas_expander_discover(struct domain_device *dev)
441428 {
442429 	struct expander_device *ex = &dev->ex_dev;
443
-	int res = -ENOMEM;
430
+	int res;
444431 
445432 	ex->ex_phy = kcalloc(ex->num_phys, sizeof(*ex->ex_phy), GFP_KERNEL);
446433 	if (!ex->ex_phy)
....@@ -500,12 +487,12 @@
500487 				       RG_RESP_SIZE);
501488 
502489 		if (res) {
503
-			SAS_DPRINTK("RG to ex %016llx failed:0x%x\n",
504
-				    SAS_ADDR(dev->sas_addr), res);
490
+			pr_notice("RG to ex %016llx failed:0x%x\n",
491
+				  SAS_ADDR(dev->sas_addr), res);
505492 			goto out;
506493 		} else if (rg_resp->result != SMP_RESP_FUNC_ACC) {
507
-			SAS_DPRINTK("RG:ex %016llx returned SMP result:0x%x\n",
508
-				    SAS_ADDR(dev->sas_addr), rg_resp->result);
494
+			pr_debug("RG:ex %016llx returned SMP result:0x%x\n",
495
+				 SAS_ADDR(dev->sas_addr), rg_resp->result);
509496 			res = rg_resp->result;
510497 			goto out;
511498 		}
....@@ -513,8 +500,8 @@
513500 		ex_assign_report_general(dev, rg_resp);
514501 
515502 		if (dev->ex_dev.configuring) {
516
-			SAS_DPRINTK("RG: ex %llx self-configuring...\n",
517
-				    SAS_ADDR(dev->sas_addr));
503
+			pr_debug("RG: ex %016llx self-configuring...\n",
504
+				 SAS_ADDR(dev->sas_addr));
518505 			schedule_timeout_interruptible(5*HZ);
519506 		} else
520507 			break;
....@@ -568,12 +555,12 @@
568555 
569556 	res = smp_execute_task(dev, mi_req, MI_REQ_SIZE, mi_resp,MI_RESP_SIZE);
570557 	if (res) {
571
-		SAS_DPRINTK("MI: ex %016llx failed:0x%x\n",
572
-			    SAS_ADDR(dev->sas_addr), res);
558
+		pr_notice("MI: ex %016llx failed:0x%x\n",
559
+			  SAS_ADDR(dev->sas_addr), res);
573560 		goto out;
574561 	} else if (mi_resp[2] != SMP_RESP_FUNC_ACC) {
575
-		SAS_DPRINTK("MI ex %016llx returned SMP result:0x%x\n",
576
-			    SAS_ADDR(dev->sas_addr), mi_resp[2]);
562
+		pr_debug("MI ex %016llx returned SMP result:0x%x\n",
563
+			 SAS_ADDR(dev->sas_addr), mi_resp[2]);
577564 		goto out;
578565 	}
579566 
....@@ -696,10 +683,10 @@
696683 	if (res)
697684 		goto out;
698685 
699
-	phy->invalid_dword_count = scsi_to_u32(&resp[12]);
700
-	phy->running_disparity_error_count = scsi_to_u32(&resp[16]);
701
-	phy->loss_of_dword_sync_count = scsi_to_u32(&resp[20]);
702
-	phy->phy_reset_problem_count = scsi_to_u32(&resp[24]);
686
+	phy->invalid_dword_count = get_unaligned_be32(&resp[12]);
687
+	phy->running_disparity_error_count = get_unaligned_be32(&resp[16]);
688
+	phy->loss_of_dword_sync_count = get_unaligned_be32(&resp[20]);
689
+	phy->phy_reset_problem_count = get_unaligned_be32(&resp[24]);
703690 
704691  out:
705692 	kfree(req);
....@@ -825,9 +812,14 @@
825812 #ifdef CONFIG_SCSI_SAS_ATA
826813 	if ((phy->attached_tproto & SAS_PROTOCOL_STP) || phy->attached_sata_dev) {
827814 		if (child->linkrate > parent->min_linkrate) {
815
+			struct sas_phy *cphy = child->phy;
816
+			enum sas_linkrate min_prate = cphy->minimum_linkrate,
817
+				parent_min_lrate = parent->min_linkrate,
818
+				min_linkrate = (min_prate > parent_min_lrate) ?
819
+					       parent_min_lrate : 0;
828820 			struct sas_phy_linkrates rates = {
829821 				.maximum_linkrate = parent->min_linkrate,
830
-				.minimum_linkrate = parent->min_linkrate,
822
+				.minimum_linkrate = min_linkrate,
831823 			};
832824 			int ret;
833825 
....@@ -864,10 +856,9 @@
864856 
865857 		res = sas_discover_sata(child);
866858 		if (res) {
867
-			SAS_DPRINTK("sas_discover_sata() for device %16llx at "
868
-				    "%016llx:0x%x returned 0x%x\n",
869
-				    SAS_ADDR(child->sas_addr),
870
-				    SAS_ADDR(parent->sas_addr), phy_id, res);
859
+			pr_notice("sas_discover_sata() for device %16llx at %016llx:%02d returned 0x%x\n",
860
+				  SAS_ADDR(child->sas_addr),
861
+				  SAS_ADDR(parent->sas_addr), phy_id, res);
871862 			goto out_list_del;
872863 		}
873864 	} else
....@@ -890,16 +881,15 @@
890881 
891882 		res = sas_discover_end_dev(child);
892883 		if (res) {
893
-			SAS_DPRINTK("sas_discover_end_dev() for device %16llx "
894
-				    "at %016llx:0x%x returned 0x%x\n",
895
-				    SAS_ADDR(child->sas_addr),
896
-				    SAS_ADDR(parent->sas_addr), phy_id, res);
884
+			pr_notice("sas_discover_end_dev() for device %016llx at %016llx:%02d returned 0x%x\n",
885
+				  SAS_ADDR(child->sas_addr),
886
+				  SAS_ADDR(parent->sas_addr), phy_id, res);
897887 			goto out_list_del;
898888 		}
899889 	} else {
900
-		SAS_DPRINTK("target proto 0x%x at %016llx:0x%x not handled\n",
901
-			    phy->attached_tproto, SAS_ADDR(parent->sas_addr),
902
-			    phy_id);
890
+		pr_notice("target proto 0x%x at %016llx:0x%x not handled\n",
891
+			  phy->attached_tproto, SAS_ADDR(parent->sas_addr),
892
+			  phy_id);
903893 		goto out_free;
904894 	}
905895 
....@@ -956,11 +946,10 @@
956946 	int res;
957947 
958948 	if (phy->routing_attr == DIRECT_ROUTING) {
959
-		SAS_DPRINTK("ex %016llx:0x%x:D <--> ex %016llx:0x%x is not "
960
-			    "allowed\n",
961
-			    SAS_ADDR(parent->sas_addr), phy_id,
962
-			    SAS_ADDR(phy->attached_sas_addr),
963
-			    phy->attached_phy_id);
949
+		pr_warn("ex %016llx:%02d:D <--> ex %016llx:0x%x is not allowed\n",
950
+			SAS_ADDR(parent->sas_addr), phy_id,
951
+			SAS_ADDR(phy->attached_sas_addr),
952
+			phy->attached_phy_id);
964953 		return NULL;
965954 	}
966955 	child = sas_alloc_device();
....@@ -1069,25 +1058,24 @@
10691058 	    ex_phy->attached_dev_type != SAS_FANOUT_EXPANDER_DEVICE &&
10701059 	    ex_phy->attached_dev_type != SAS_EDGE_EXPANDER_DEVICE &&
10711060 	    ex_phy->attached_dev_type != SAS_SATA_PENDING) {
1072
-		SAS_DPRINTK("unknown device type(0x%x) attached to ex %016llx "
1073
-			    "phy 0x%x\n", ex_phy->attached_dev_type,
1074
-			    SAS_ADDR(dev->sas_addr),
1075
-			    phy_id);
1061
+		pr_warn("unknown device type(0x%x) attached to ex %016llx phy%02d\n",
1062
+			ex_phy->attached_dev_type,
1063
+			SAS_ADDR(dev->sas_addr),
1064
+			phy_id);
10761065 		return 0;
10771066 	}
10781067 
10791068 	res = sas_configure_routing(dev, ex_phy->attached_sas_addr);
10801069 	if (res) {
1081
-		SAS_DPRINTK("configure routing for dev %016llx "
1082
-			    "reported 0x%x. Forgotten\n",
1083
-			    SAS_ADDR(ex_phy->attached_sas_addr), res);
1070
+		pr_notice("configure routing for dev %016llx reported 0x%x. Forgotten\n",
1071
+			  SAS_ADDR(ex_phy->attached_sas_addr), res);
10841072 		sas_disable_routing(dev, ex_phy->attached_sas_addr);
10851073 		return res;
10861074 	}
10871075 
10881076 	if (sas_ex_join_wide_port(dev, phy_id)) {
1089
-		SAS_DPRINTK("Attaching ex phy%d to wide port %016llx\n",
1090
-			    phy_id, SAS_ADDR(ex_phy->attached_sas_addr));
1077
+		pr_debug("Attaching ex phy%02d to wide port %016llx\n",
1078
+			 phy_id, SAS_ADDR(ex_phy->attached_sas_addr));
10911079 		return res;
10921080 	}
10931081 
....@@ -1098,18 +1086,17 @@
10981086 		break;
10991087 	case SAS_FANOUT_EXPANDER_DEVICE:
11001088 		if (SAS_ADDR(dev->port->disc.fanout_sas_addr)) {
1101
-			SAS_DPRINTK("second fanout expander %016llx phy 0x%x "
1102
-				    "attached to ex %016llx phy 0x%x\n",
1103
-				    SAS_ADDR(ex_phy->attached_sas_addr),
1104
-				    ex_phy->attached_phy_id,
1105
-				    SAS_ADDR(dev->sas_addr),
1106
-				    phy_id);
1089
+			pr_debug("second fanout expander %016llx phy%02d attached to ex %016llx phy%02d\n",
1090
+				 SAS_ADDR(ex_phy->attached_sas_addr),
1091
+				 ex_phy->attached_phy_id,
1092
+				 SAS_ADDR(dev->sas_addr),
1093
+				 phy_id);
11071094 			sas_ex_disable_phy(dev, phy_id);
1108
-			break;
1095
+			return res;
11091096 		} else
11101097 			memcpy(dev->port->disc.fanout_sas_addr,
11111098 			       ex_phy->attached_sas_addr, SAS_ADDR_SIZE);
1112
-		/* fallthrough */
1099
+		fallthrough;
11131100 	case SAS_EDGE_EXPANDER_DEVICE:
11141101 		child = sas_ex_discover_expander(dev, phy_id);
11151102 		break;
....@@ -1117,28 +1104,9 @@
11171104 		break;
11181105 	}
11191106 
1120
-	if (child) {
1121
-		int i;
1122
-
1123
-		for (i = 0; i < ex->num_phys; i++) {
1124
-			if (ex->ex_phy[i].phy_state == PHY_VACANT ||
1125
-			    ex->ex_phy[i].phy_state == PHY_NOT_PRESENT)
1126
-				continue;
1127
-			/*
1128
-			 * Due to races, the phy might not get added to the
1129
-			 * wide port, so we add the phy to the wide port here.
1130
-			 */
1131
-			if (SAS_ADDR(ex->ex_phy[i].attached_sas_addr) ==
1132
-			    SAS_ADDR(child->sas_addr)) {
1133
-				ex->ex_phy[i].phy_state= PHY_DEVICE_DISCOVERED;
1134
-				if (sas_ex_join_wide_port(dev, i))
1135
-					SAS_DPRINTK("Attaching ex phy%d to wide port %016llx\n",
1136
-						    i, SAS_ADDR(ex->ex_phy[i].attached_sas_addr));
1137
-
1138
-			}
1139
-		}
1140
-	}
1141
-
1107
+	if (!child)
1108
+		pr_notice("ex %016llx phy%02d failed to discover\n",
1109
+			  SAS_ADDR(dev->sas_addr), phy_id);
11421110 	return res;
11431111 }
11441112 
....@@ -1154,11 +1122,10 @@
11541122 		    phy->phy_state == PHY_NOT_PRESENT)
11551123 			continue;
11561124 
1157
-		if ((phy->attached_dev_type == SAS_EDGE_EXPANDER_DEVICE ||
1158
-		     phy->attached_dev_type == SAS_FANOUT_EXPANDER_DEVICE) &&
1125
+		if (dev_is_expander(phy->attached_dev_type) &&
11591126 		    phy->routing_attr == SUBTRACTIVE_ROUTING) {
11601127 
1161
-			memcpy(sub_addr, phy->attached_sas_addr,SAS_ADDR_SIZE);
1128
+			memcpy(sub_addr, phy->attached_sas_addr, SAS_ADDR_SIZE);
11621129 
11631130 			return 1;
11641131 		}
....@@ -1170,28 +1137,25 @@
11701137 {
11711138 	struct expander_device *ex = &dev->ex_dev;
11721139 	struct domain_device *child;
1173
-	u8 sub_addr[8] = {0, };
1140
+	u8 sub_addr[SAS_ADDR_SIZE] = {0, };
11741141 
11751142 	list_for_each_entry(child, &ex->children, siblings) {
1176
-		if (child->dev_type != SAS_EDGE_EXPANDER_DEVICE &&
1177
-		    child->dev_type != SAS_FANOUT_EXPANDER_DEVICE)
1143
+		if (!dev_is_expander(child->dev_type))
11781144 			continue;
11791145 		if (sub_addr[0] == 0) {
11801146 			sas_find_sub_addr(child, sub_addr);
11811147 			continue;
11821148 		} else {
1183
-			u8 s2[8];
1149
+			u8 s2[SAS_ADDR_SIZE];
11841150 
11851151 			if (sas_find_sub_addr(child, s2) &&
11861152 			    (SAS_ADDR(sub_addr) != SAS_ADDR(s2))) {
11871153 
1188
-				SAS_DPRINTK("ex %016llx->%016llx-?->%016llx "
1189
-					    "diverges from subtractive "
1190
-					    "boundary %016llx\n",
1191
-					    SAS_ADDR(dev->sas_addr),
1192
-					    SAS_ADDR(child->sas_addr),
1193
-					    SAS_ADDR(s2),
1194
-					    SAS_ADDR(sub_addr));
1154
+				pr_notice("ex %016llx->%016llx-?->%016llx diverges from subtractive boundary %016llx\n",
1155
+					  SAS_ADDR(dev->sas_addr),
1156
+					  SAS_ADDR(child->sas_addr),
1157
+					  SAS_ADDR(s2),
1158
+					  SAS_ADDR(sub_addr));
11951159 
11961160 				sas_ex_disable_port(child, s2);
11971161 			}
....@@ -1261,8 +1225,7 @@
12611225 		    phy->phy_state == PHY_NOT_PRESENT)
12621226 			continue;
12631227 
1264
-		if ((phy->attached_dev_type == SAS_FANOUT_EXPANDER_DEVICE ||
1265
-		     phy->attached_dev_type == SAS_EDGE_EXPANDER_DEVICE) &&
1228
+		if (dev_is_expander(phy->attached_dev_type) &&
12661229 		    phy->routing_attr == SUBTRACTIVE_ROUTING) {
12671230 
12681231 			if (!sub_sas_addr)
....@@ -1270,12 +1233,10 @@
12701233 			else if (SAS_ADDR(sub_sas_addr) !=
12711234 				 SAS_ADDR(phy->attached_sas_addr)) {
12721235 
1273
-				SAS_DPRINTK("ex %016llx phy 0x%x "
1274
-					    "diverges(%016llx) on subtractive "
1275
-					    "boundary(%016llx). Disabled\n",
1276
-					    SAS_ADDR(dev->sas_addr), i,
1277
-					    SAS_ADDR(phy->attached_sas_addr),
1278
-					    SAS_ADDR(sub_sas_addr));
1236
+				pr_notice("ex %016llx phy%02d diverges(%016llx) on subtractive boundary(%016llx). Disabled\n",
1237
+					  SAS_ADDR(dev->sas_addr), i,
1238
+					  SAS_ADDR(phy->attached_sas_addr),
1239
+					  SAS_ADDR(sub_sas_addr));
12791240 				sas_ex_disable_phy(dev, i);
12801241 			}
12811242 		}
....@@ -1293,19 +1254,17 @@
12931254 	};
12941255 	struct domain_device *parent = child->parent;
12951256 
1296
-	sas_printk("%s ex %016llx phy 0x%x <--> %s ex %016llx "
1297
-		   "phy 0x%x has %c:%c routing link!\n",
1257
+	pr_notice("%s ex %016llx phy%02d <--> %s ex %016llx phy%02d has %c:%c routing link!\n",
1258
+		  ex_type[parent->dev_type],
1259
+		  SAS_ADDR(parent->sas_addr),
1260
+		  parent_phy->phy_id,
12981261 
1299
-		   ex_type[parent->dev_type],
1300
-		   SAS_ADDR(parent->sas_addr),
1301
-		   parent_phy->phy_id,
1262
+		  ex_type[child->dev_type],
1263
+		  SAS_ADDR(child->sas_addr),
1264
+		  child_phy->phy_id,
13021265 
1303
-		   ex_type[child->dev_type],
1304
-		   SAS_ADDR(child->sas_addr),
1305
-		   child_phy->phy_id,
1306
-
1307
-		   sas_route_char(parent, parent_phy),
1308
-		   sas_route_char(child, child_phy));
1266
+		  sas_route_char(parent, parent_phy),
1267
+		  sas_route_char(child, child_phy));
13091268 }
13101269 
13111270 static int sas_check_eeds(struct domain_device *child,
....@@ -1317,13 +1276,12 @@
13171276 
13181277 	if (SAS_ADDR(parent->port->disc.fanout_sas_addr) != 0) {
13191278 		res = -ENODEV;
1320
-		SAS_DPRINTK("edge ex %016llx phy S:0x%x <--> edge ex %016llx "
1321
-			    "phy S:0x%x, while there is a fanout ex %016llx\n",
1322
-			    SAS_ADDR(parent->sas_addr),
1323
-			    parent_phy->phy_id,
1324
-			    SAS_ADDR(child->sas_addr),
1325
-			    child_phy->phy_id,
1326
-			    SAS_ADDR(parent->port->disc.fanout_sas_addr));
1279
+		pr_warn("edge ex %016llx phy S:%02d <--> edge ex %016llx phy S:%02d, while there is a fanout ex %016llx\n",
1280
+			SAS_ADDR(parent->sas_addr),
1281
+			parent_phy->phy_id,
1282
+			SAS_ADDR(child->sas_addr),
1283
+			child_phy->phy_id,
1284
+			SAS_ADDR(parent->port->disc.fanout_sas_addr));
13271285 	} else if (SAS_ADDR(parent->port->disc.eeds_a) == 0) {
13281286 		memcpy(parent->port->disc.eeds_a, parent->sas_addr,
13291287 		       SAS_ADDR_SIZE);
....@@ -1341,12 +1299,11 @@
13411299 		;
13421300 	else {
13431301 		res = -ENODEV;
1344
-		SAS_DPRINTK("edge ex %016llx phy 0x%x <--> edge ex %016llx "
1345
-			    "phy 0x%x link forms a third EEDS!\n",
1346
-			    SAS_ADDR(parent->sas_addr),
1347
-			    parent_phy->phy_id,
1348
-			    SAS_ADDR(child->sas_addr),
1349
-			    child_phy->phy_id);
1302
+		pr_warn("edge ex %016llx phy%02d <--> edge ex %016llx phy%02d link forms a third EEDS!\n",
1303
+			SAS_ADDR(parent->sas_addr),
1304
+			parent_phy->phy_id,
1305
+			SAS_ADDR(child->sas_addr),
1306
+			child_phy->phy_id);
13501307 	}
13511308 
13521309 	return res;
....@@ -1364,8 +1321,7 @@
13641321 	if (!child->parent)
13651322 		return 0;
13661323 
1367
-	if (child->parent->dev_type != SAS_EDGE_EXPANDER_DEVICE &&
1368
-	    child->parent->dev_type != SAS_FANOUT_EXPANDER_DEVICE)
1324
+	if (!dev_is_expander(child->parent->dev_type))
13691325 		return 0;
13701326 
13711327 	parent_ex = &child->parent->ex_dev;
....@@ -1460,14 +1416,13 @@
14601416 			goto out;
14611417 		res = rri_resp[2];
14621418 		if (res == SMP_RESP_NO_INDEX) {
1463
-			SAS_DPRINTK("overflow of indexes: dev %016llx "
1464
-				    "phy 0x%x index 0x%x\n",
1465
-				    SAS_ADDR(dev->sas_addr), phy_id, i);
1419
+			pr_warn("overflow of indexes: dev %016llx phy%02d index 0x%x\n",
1420
+				SAS_ADDR(dev->sas_addr), phy_id, i);
14661421 			goto out;
14671422 		} else if (res != SMP_RESP_FUNC_ACC) {
1468
-			SAS_DPRINTK("%s: dev %016llx phy 0x%x index 0x%x "
1469
-				    "result 0x%x\n", __func__,
1470
-				    SAS_ADDR(dev->sas_addr), phy_id, i, res);
1423
+			pr_notice("%s: dev %016llx phy%02d index 0x%x result 0x%x\n",
1424
+				  __func__, SAS_ADDR(dev->sas_addr), phy_id,
1425
+				  i, res);
14711426 			goto out;
14721427 		}
14731428 		if (SAS_ADDR(sas_addr) != 0) {
....@@ -1531,9 +1486,8 @@
15311486 		goto out;
15321487 	res = cri_resp[2];
15331488 	if (res == SMP_RESP_NO_INDEX) {
1534
-		SAS_DPRINTK("overflow of indexes: dev %016llx phy 0x%x "
1535
-			    "index 0x%x\n",
1536
-			    SAS_ADDR(dev->sas_addr), phy_id, index);
1489
+		pr_warn("overflow of indexes: dev %016llx phy%02d index 0x%x\n",
1490
+			SAS_ADDR(dev->sas_addr), phy_id, index);
15371491 	}
15381492 out:
15391493 	kfree(cri_req);
....@@ -1580,8 +1534,8 @@
15801534 	}
15811535 
15821536 	if (ex_parent->conf_route_table == 0) {
1583
-		SAS_DPRINTK("ex %016llx has self-configuring routing table\n",
1584
-			    SAS_ADDR(parent->sas_addr));
1537
+		pr_debug("ex %016llx has self-configuring routing table\n",
1538
+			 SAS_ADDR(parent->sas_addr));
15851539 		return 0;
15861540 	}
15871541 
....@@ -1642,8 +1596,8 @@
16421596 
16431597 	res = sas_expander_discover(dev);
16441598 	if (res) {
1645
-		SAS_DPRINTK("expander %016llx discovery failed(0x%x)\n",
1646
-			    SAS_ADDR(dev->sas_addr), res);
1599
+		pr_warn("expander %016llx discovery failed(0x%x)\n",
1600
+			SAS_ADDR(dev->sas_addr), res);
16471601 		goto out_err;
16481602 	}
16491603 
....@@ -1663,8 +1617,7 @@
16631617 	struct domain_device *dev;
16641618 
16651619 	list_for_each_entry(dev, &port->dev_list, dev_list_node) {
1666
-		if (dev->dev_type == SAS_EDGE_EXPANDER_DEVICE ||
1667
-		    dev->dev_type == SAS_FANOUT_EXPANDER_DEVICE) {
1620
+		if (dev_is_expander(dev->dev_type)) {
16681621 			struct sas_expander_device *ex =
16691622 				rphy_to_expander_device(dev->rphy);
16701623 
....@@ -1777,10 +1730,11 @@
17771730 
17781731 	res = sas_get_phy_discover(dev, phy_id, disc_resp);
17791732 	if (res == 0) {
1780
-		memcpy(sas_addr, disc_resp->disc.attached_sas_addr, 8);
1733
+		memcpy(sas_addr, disc_resp->disc.attached_sas_addr,
1734
+		       SAS_ADDR_SIZE);
17811735 		*type = to_dev_type(dr);
17821736 		if (*type == 0)
1783
-			memset(sas_addr, 0, 8);
1737
+			memset(sas_addr, 0, SAS_ADDR_SIZE);
17841738 	}
17851739 	kfree(disc_resp);
17861740 	return res;
....@@ -1887,13 +1841,15 @@
18871841 		if (phy_id != -1) {
18881842 			*src_dev = dev;
18891843 			ex->ex_change_count = ex_change_count;
1890
-			SAS_DPRINTK("Expander phy change count has changed\n");
1844
+			pr_info("ex %016llx phy%02d change count has changed\n",
1845
+				SAS_ADDR(dev->sas_addr), phy_id);
18911846 			return res;
18921847 		} else
1893
-			SAS_DPRINTK("Expander phys DID NOT change\n");
1848
+			pr_info("ex %016llx phys DID NOT change\n",
1849
+				SAS_ADDR(dev->sas_addr));
18941850 	}
18951851 	list_for_each_entry(ch, &ex->children, siblings) {
1896
-		if (ch->dev_type == SAS_EDGE_EXPANDER_DEVICE || ch->dev_type == SAS_FANOUT_EXPANDER_DEVICE) {
1852
+		if (dev_is_expander(ch->dev_type)) {
18971853 			res = sas_find_bcast_dev(ch, src_dev);
18981854 			if (*src_dev)
18991855 				return res;
....@@ -1910,8 +1866,7 @@
19101866 
19111867 	list_for_each_entry_safe(child, n, &ex->children, siblings) {
19121868 		set_bit(SAS_DEV_GONE, &child->state);
1913
-		if (child->dev_type == SAS_EDGE_EXPANDER_DEVICE ||
1914
-		    child->dev_type == SAS_FANOUT_EXPANDER_DEVICE)
1869
+		if (dev_is_expander(child->dev_type))
19151870 			sas_unregister_ex_tree(port, child);
19161871 		else
19171872 			sas_unregister_dev(port, child);
....@@ -1931,8 +1886,7 @@
19311886 			if (SAS_ADDR(child->sas_addr) ==
19321887 			    SAS_ADDR(phy->attached_sas_addr)) {
19331888 				set_bit(SAS_DEV_GONE, &child->state);
1934
-				if (child->dev_type == SAS_EDGE_EXPANDER_DEVICE ||
1935
-				    child->dev_type == SAS_FANOUT_EXPANDER_DEVICE)
1889
+				if (dev_is_expander(child->dev_type))
19361890 					sas_unregister_ex_tree(parent->port, child);
19371891 				else
19381892 					sas_unregister_dev(parent->port, child);
....@@ -1961,8 +1915,7 @@
19611915 	int res = 0;
19621916 
19631917 	list_for_each_entry(child, &ex_root->children, siblings) {
1964
-		if (child->dev_type == SAS_EDGE_EXPANDER_DEVICE ||
1965
-		    child->dev_type == SAS_FANOUT_EXPANDER_DEVICE) {
1918
+		if (dev_is_expander(child->dev_type)) {
19661919 			struct sas_expander_device *ex =
19671920 				rphy_to_expander_device(child->rphy);
19681921 
....@@ -2000,8 +1953,8 @@
20001953 	struct domain_device *child;
20011954 	int res;
20021955 
2003
-	SAS_DPRINTK("ex %016llx phy%d new device attached\n",
2004
-		    SAS_ADDR(dev->sas_addr), phy_id);
1956
+	pr_debug("ex %016llx phy%02d new device attached\n",
1957
+		 SAS_ADDR(dev->sas_addr), phy_id);
20051958 	res = sas_ex_phy_discover(dev, phy_id);
20061959 	if (res)
20071960 		return res;
....@@ -2015,8 +1968,7 @@
20151968 	list_for_each_entry(child, &dev->ex_dev.children, siblings) {
20161969 		if (SAS_ADDR(child->sas_addr) ==
20171970 		    SAS_ADDR(ex_phy->attached_sas_addr)) {
2018
-			if (child->dev_type == SAS_EDGE_EXPANDER_DEVICE ||
2019
-			    child->dev_type == SAS_FANOUT_EXPANDER_DEVICE)
1971
+			if (dev_is_expander(child->dev_type))
20201972 				res = sas_discover_bfs_by_root(child);
20211973 			break;
20221974 		}
....@@ -2039,15 +1991,23 @@
20391991 	return false;
20401992 }
20411993 
2042
-static int sas_rediscover_dev(struct domain_device *dev, int phy_id, bool last)
1994
+static int sas_rediscover_dev(struct domain_device *dev, int phy_id,
1995
+			      bool last, int sibling)
20431996 {
20441997 	struct expander_device *ex = &dev->ex_dev;
20451998 	struct ex_phy *phy = &ex->ex_phy[phy_id];
20461999 	enum sas_device_type type = SAS_PHY_UNUSED;
2047
-	u8 sas_addr[8];
2000
+	u8 sas_addr[SAS_ADDR_SIZE];
2001
+	char msg[80] = "";
20482002 	int res;
20492003 
2050
-	memset(sas_addr, 0, 8);
2004
+	if (!last)
2005
+		sprintf(msg, ", part of a wide port with phy%02d", sibling);
2006
+
2007
+	pr_debug("ex %016llx rediscovering phy%02d%s\n",
2008
+		 SAS_ADDR(dev->sas_addr), phy_id, msg);
2009
+
2010
+	memset(sas_addr, 0, SAS_ADDR_SIZE);
20512011 	res = sas_get_phy_attached_dev(dev, phy_id, sas_addr, &type);
20522012 	switch (res) {
20532013 	case SMP_RESP_NO_PHY:
....@@ -2084,15 +2044,15 @@
20842044 
20852045 		if (ata_dev && phy->attached_dev_type == SAS_SATA_PENDING)
20862046 			action = ", needs recovery";
2087
-		SAS_DPRINTK("ex %016llx phy 0x%x broadcast flutter%s\n",
2088
-			    SAS_ADDR(dev->sas_addr), phy_id, action);
2047
+		pr_debug("ex %016llx phy%02d broadcast flutter%s\n",
2048
+			 SAS_ADDR(dev->sas_addr), phy_id, action);
20892049 		return res;
20902050 	}
20912051 
20922052 	/* we always have to delete the old device when we went here */
2093
-	SAS_DPRINTK("ex %016llx phy 0x%x replace %016llx\n",
2094
-		    SAS_ADDR(dev->sas_addr), phy_id,
2095
-		    SAS_ADDR(phy->attached_sas_addr));
2053
+	pr_info("ex %016llx phy%02d replace %016llx\n",
2054
+		SAS_ADDR(dev->sas_addr), phy_id,
2055
+		SAS_ADDR(phy->attached_sas_addr));
20962056 	sas_unregister_devs_sas_addr(dev, phy_id, last);
20972057 
20982058 	return sas_discover_new(dev, phy_id);
....@@ -2120,8 +2080,8 @@
21202080 	int i;
21212081 	bool last = true;	/* is this the last phy of the port */
21222082 
2123
-	SAS_DPRINTK("ex %016llx phy%d originated BROADCAST(CHANGE)\n",
2124
-		    SAS_ADDR(dev->sas_addr), phy_id);
2083
+	pr_debug("ex %016llx phy%02d originated BROADCAST(CHANGE)\n",
2084
+		 SAS_ADDR(dev->sas_addr), phy_id);
21252085 
21262086 	if (SAS_ADDR(changed_phy->attached_sas_addr) != 0) {
21272087 		for (i = 0; i < ex->num_phys; i++) {
....@@ -2131,13 +2091,11 @@
21312091 				continue;
21322092 			if (SAS_ADDR(phy->attached_sas_addr) ==
21332093 			    SAS_ADDR(changed_phy->attached_sas_addr)) {
2134
-				SAS_DPRINTK("phy%d part of wide port with "
2135
-					    "phy%d\n", phy_id, i);
21362094 				last = false;
21372095 				break;
21382096 			}
21392097 		}
2140
-		res = sas_rediscover_dev(dev, phy_id, last);
2098
+		res = sas_rediscover_dev(dev, phy_id, last, i);
21412099 	} else
21422100 		res = sas_discover_new(dev, phy_id);
21432101 	return res;
....@@ -2190,23 +2148,23 @@
21902148 	case SAS_FANOUT_EXPANDER_DEVICE:
21912149 		break;
21922150 	default:
2193
-		printk("%s: can we send a smp request to a device?\n",
2151
+		pr_err("%s: can we send a smp request to a device?\n",
21942152 		       __func__);
21952153 		goto out;
21962154 	}
21972155 
21982156 	dev = sas_find_dev_by_rphy(rphy);
21992157 	if (!dev) {
2200
-		printk("%s: fail to find a domain_device?\n", __func__);
2158
+		pr_err("%s: fail to find a domain_device?\n", __func__);
22012159 		goto out;
22022160 	}
22032161 
22042162 	/* do we need to support multiple segments? */
22052163 	if (job->request_payload.sg_cnt > 1 ||
22062164 	    job->reply_payload.sg_cnt > 1) {
2207
-		printk("%s: multiple segments req %u, rsp %u\n",
2208
-		       __func__, job->request_payload.payload_len,
2209
-		       job->reply_payload.payload_len);
2165
+		pr_info("%s: multiple segments req %u, rsp %u\n",
2166
+			__func__, job->request_payload.payload_len,
2167
+			job->reply_payload.payload_len);
22102168 		goto out;
22112169 	}
22122170