2 * Copyright (C) 2005-2006 Dell Inc.
3 * Released under GPL v2.
5 * Serial Attached SCSI (SAS) transport class.
7 * The SAS transport class contains common code to deal with SAS HBAs,
8 * an aproximated representation of SAS topologies in the driver model,
9 * and various sysfs attributes to expose these topologies and managment
10 * interfaces to userspace.
12 * In addition to the basic SCSI core objects this transport class
13 * introduces two additional intermediate objects: The SAS PHY
14 * as represented by struct sas_phy defines an "outgoing" PHY on
15 * a SAS HBA or Expander, and the SAS remote PHY represented by
16 * struct sas_rphy defines an "incoming" PHY on a SAS Expander or
17 * end device. Note that this is purely a software concept, the
18 * underlying hardware for a PHY and a remote PHY is the exactly
21 * There is no concept of a SAS port in this code, users can see
22 * what PHYs form a wide port based on the port_identifier attribute,
23 * which is the same for all PHYs in a port.
26 #include <linux/init.h>
27 #include <linux/module.h>
28 #include <linux/err.h>
29 #include <linux/slab.h>
30 #include <linux/string.h>
32 #include <scsi/scsi.h>
33 #include <scsi/scsi_device.h>
34 #include <scsi/scsi_host.h>
35 #include <scsi/scsi_transport.h>
36 #include <scsi/scsi_transport_sas.h>
38 #include "scsi_sas_internal.h"
39 struct sas_host_attrs
{
40 struct list_head rphy_list
;
46 #define to_sas_host_attrs(host) ((struct sas_host_attrs *)(host)->shost_data)
50 * Hack to allow attributes of the same name in different objects.
52 #define SAS_CLASS_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \
53 struct class_device_attribute class_device_attr_##_prefix##_##_name = \
54 __ATTR(_name,_mode,_show,_store)
58 * Pretty printing helpers
61 #define sas_bitfield_name_match(title, table) \
63 get_sas_##title##_names(u32 table_key, char *buf) \
69 for (i = 0; i < ARRAY_SIZE(table); i++) { \
70 if (table[i].value & table_key) { \
71 len += sprintf(buf + len, "%s%s", \
72 prefix, table[i].name); \
76 len += sprintf(buf + len, "\n"); \
80 #define sas_bitfield_name_set(title, table) \
82 set_sas_##title##_names(u32 *table_key, const char *buf) \
87 for (i = 0; i < ARRAY_SIZE(table); i++) { \
88 len = strlen(table[i].name); \
89 if (strncmp(buf, table[i].name, len) == 0 && \
90 (buf[len] == '\n' || buf[len] == '\0')) { \
91 *table_key = table[i].value; \
98 #define sas_bitfield_name_search(title, table) \
100 get_sas_##title##_names(u32 table_key, char *buf) \
105 for (i = 0; i < ARRAY_SIZE(table); i++) { \
106 if (table[i].value == table_key) { \
107 len += sprintf(buf + len, "%s", \
112 len += sprintf(buf + len, "\n"); \
119 } sas_device_type_names
[] = {
120 { SAS_PHY_UNUSED
, "unused" },
121 { SAS_END_DEVICE
, "end device" },
122 { SAS_EDGE_EXPANDER_DEVICE
, "edge expander" },
123 { SAS_FANOUT_EXPANDER_DEVICE
, "fanout expander" },
125 sas_bitfield_name_search(device_type
, sas_device_type_names
)
131 } sas_protocol_names
[] = {
132 { SAS_PROTOCOL_SATA
, "sata" },
133 { SAS_PROTOCOL_SMP
, "smp" },
134 { SAS_PROTOCOL_STP
, "stp" },
135 { SAS_PROTOCOL_SSP
, "ssp" },
137 sas_bitfield_name_match(protocol
, sas_protocol_names
)
142 } sas_linkspeed_names
[] = {
143 { SAS_LINK_RATE_UNKNOWN
, "Unknown" },
144 { SAS_PHY_DISABLED
, "Phy disabled" },
145 { SAS_LINK_RATE_FAILED
, "Link Rate failed" },
146 { SAS_SATA_SPINUP_HOLD
, "Spin-up hold" },
147 { SAS_LINK_RATE_1_5_GBPS
, "1.5 Gbit" },
148 { SAS_LINK_RATE_3_0_GBPS
, "3.0 Gbit" },
149 { SAS_LINK_RATE_6_0_GBPS
, "6.0 Gbit" },
151 sas_bitfield_name_search(linkspeed
, sas_linkspeed_names
)
152 sas_bitfield_name_set(linkspeed
, sas_linkspeed_names
)
155 * SAS host attributes
158 static int sas_host_setup(struct transport_container
*tc
, struct device
*dev
,
159 struct class_device
*cdev
)
161 struct Scsi_Host
*shost
= dev_to_shost(dev
);
162 struct sas_host_attrs
*sas_host
= to_sas_host_attrs(shost
);
164 INIT_LIST_HEAD(&sas_host
->rphy_list
);
165 mutex_init(&sas_host
->lock
);
166 sas_host
->next_target_id
= 0;
167 sas_host
->next_expander_id
= 0;
168 sas_host
->next_port_id
= 0;
172 static DECLARE_TRANSPORT_CLASS(sas_host_class
,
173 "sas_host", sas_host_setup
, NULL
, NULL
);
175 static int sas_host_match(struct attribute_container
*cont
,
178 struct Scsi_Host
*shost
;
179 struct sas_internal
*i
;
181 if (!scsi_is_host_device(dev
))
183 shost
= dev_to_shost(dev
);
185 if (!shost
->transportt
)
187 if (shost
->transportt
->host_attrs
.ac
.class !=
188 &sas_host_class
.class)
191 i
= to_sas_internal(shost
->transportt
);
192 return &i
->t
.host_attrs
.ac
== cont
;
195 static int do_sas_phy_delete(struct device
*dev
, void *data
)
197 int pass
= (int)(unsigned long)data
;
199 if (pass
== 0 && scsi_is_sas_port(dev
))
200 sas_port_delete(dev_to_sas_port(dev
));
201 else if (pass
== 1 && scsi_is_sas_phy(dev
))
202 sas_phy_delete(dev_to_phy(dev
));
207 * sas_remove_children -- tear down a devices SAS data structures
208 * @dev: device belonging to the sas object
210 * Removes all SAS PHYs and remote PHYs for a given object
212 void sas_remove_children(struct device
*dev
)
214 device_for_each_child(dev
, (void *)0, do_sas_phy_delete
);
215 device_for_each_child(dev
, (void *)1, do_sas_phy_delete
);
217 EXPORT_SYMBOL(sas_remove_children
);
220 * sas_remove_host -- tear down a Scsi_Host's SAS data structures
221 * @shost: Scsi Host that is torn down
223 * Removes all SAS PHYs and remote PHYs for a given Scsi_Host.
224 * Must be called just before scsi_remove_host for SAS HBAs.
226 void sas_remove_host(struct Scsi_Host
*shost
)
228 sas_remove_children(&shost
->shost_gendev
);
230 EXPORT_SYMBOL(sas_remove_host
);
237 #define sas_phy_show_simple(field, name, format_string, cast) \
239 show_sas_phy_##name(struct class_device *cdev, char *buf) \
241 struct sas_phy *phy = transport_class_to_phy(cdev); \
243 return snprintf(buf, 20, format_string, cast phy->field); \
246 #define sas_phy_simple_attr(field, name, format_string, type) \
247 sas_phy_show_simple(field, name, format_string, (type)) \
248 static CLASS_DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL)
250 #define sas_phy_show_protocol(field, name) \
252 show_sas_phy_##name(struct class_device *cdev, char *buf) \
254 struct sas_phy *phy = transport_class_to_phy(cdev); \
257 return snprintf(buf, 20, "none\n"); \
258 return get_sas_protocol_names(phy->field, buf); \
261 #define sas_phy_protocol_attr(field, name) \
262 sas_phy_show_protocol(field, name) \
263 static CLASS_DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL)
265 #define sas_phy_show_linkspeed(field) \
267 show_sas_phy_##field(struct class_device *cdev, char *buf) \
269 struct sas_phy *phy = transport_class_to_phy(cdev); \
271 return get_sas_linkspeed_names(phy->field, buf); \
274 /* Fudge to tell if we're minimum or maximum */
275 #define sas_phy_store_linkspeed(field) \
277 store_sas_phy_##field(struct class_device *cdev, const char *buf, \
280 struct sas_phy *phy = transport_class_to_phy(cdev); \
281 struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); \
282 struct sas_internal *i = to_sas_internal(shost->transportt); \
284 struct sas_phy_linkrates rates = {0}; \
287 error = set_sas_linkspeed_names(&value, buf); \
290 rates.field = value; \
291 error = i->f->set_phy_speed(phy, &rates); \
293 return error ? error : count; \
296 #define sas_phy_linkspeed_rw_attr(field) \
297 sas_phy_show_linkspeed(field) \
298 sas_phy_store_linkspeed(field) \
299 static CLASS_DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, \
300 store_sas_phy_##field)
302 #define sas_phy_linkspeed_attr(field) \
303 sas_phy_show_linkspeed(field) \
304 static CLASS_DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL)
307 #define sas_phy_show_linkerror(field) \
309 show_sas_phy_##field(struct class_device *cdev, char *buf) \
311 struct sas_phy *phy = transport_class_to_phy(cdev); \
312 struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); \
313 struct sas_internal *i = to_sas_internal(shost->transportt); \
316 error = i->f->get_linkerrors ? i->f->get_linkerrors(phy) : 0; \
319 return snprintf(buf, 20, "%u\n", phy->field); \
322 #define sas_phy_linkerror_attr(field) \
323 sas_phy_show_linkerror(field) \
324 static CLASS_DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL)
328 show_sas_device_type(struct class_device
*cdev
, char *buf
)
330 struct sas_phy
*phy
= transport_class_to_phy(cdev
);
332 if (!phy
->identify
.device_type
)
333 return snprintf(buf
, 20, "none\n");
334 return get_sas_device_type_names(phy
->identify
.device_type
, buf
);
336 static CLASS_DEVICE_ATTR(device_type
, S_IRUGO
, show_sas_device_type
, NULL
);
338 static ssize_t
do_sas_phy_reset(struct class_device
*cdev
,
339 size_t count
, int hard_reset
)
341 struct sas_phy
*phy
= transport_class_to_phy(cdev
);
342 struct Scsi_Host
*shost
= dev_to_shost(phy
->dev
.parent
);
343 struct sas_internal
*i
= to_sas_internal(shost
->transportt
);
346 error
= i
->f
->phy_reset(phy
, hard_reset
);
352 static ssize_t
store_sas_link_reset(struct class_device
*cdev
,
353 const char *buf
, size_t count
)
355 return do_sas_phy_reset(cdev
, count
, 0);
357 static CLASS_DEVICE_ATTR(link_reset
, S_IWUSR
, NULL
, store_sas_link_reset
);
359 static ssize_t
store_sas_hard_reset(struct class_device
*cdev
,
360 const char *buf
, size_t count
)
362 return do_sas_phy_reset(cdev
, count
, 1);
364 static CLASS_DEVICE_ATTR(hard_reset
, S_IWUSR
, NULL
, store_sas_hard_reset
);
366 sas_phy_protocol_attr(identify
.initiator_port_protocols
,
367 initiator_port_protocols
);
368 sas_phy_protocol_attr(identify
.target_port_protocols
,
369 target_port_protocols
);
370 sas_phy_simple_attr(identify
.sas_address
, sas_address
, "0x%016llx\n",
372 sas_phy_simple_attr(identify
.phy_identifier
, phy_identifier
, "%d\n", u8
);
373 //sas_phy_simple_attr(port_identifier, port_identifier, "%d\n", int);
374 sas_phy_linkspeed_attr(negotiated_linkrate
);
375 sas_phy_linkspeed_attr(minimum_linkrate_hw
);
376 sas_phy_linkspeed_rw_attr(minimum_linkrate
);
377 sas_phy_linkspeed_attr(maximum_linkrate_hw
);
378 sas_phy_linkspeed_rw_attr(maximum_linkrate
);
379 sas_phy_linkerror_attr(invalid_dword_count
);
380 sas_phy_linkerror_attr(running_disparity_error_count
);
381 sas_phy_linkerror_attr(loss_of_dword_sync_count
);
382 sas_phy_linkerror_attr(phy_reset_problem_count
);
385 static DECLARE_TRANSPORT_CLASS(sas_phy_class
,
386 "sas_phy", NULL
, NULL
, NULL
);
388 static int sas_phy_match(struct attribute_container
*cont
, struct device
*dev
)
390 struct Scsi_Host
*shost
;
391 struct sas_internal
*i
;
393 if (!scsi_is_sas_phy(dev
))
395 shost
= dev_to_shost(dev
->parent
);
397 if (!shost
->transportt
)
399 if (shost
->transportt
->host_attrs
.ac
.class !=
400 &sas_host_class
.class)
403 i
= to_sas_internal(shost
->transportt
);
404 return &i
->phy_attr_cont
.ac
== cont
;
407 static void sas_phy_release(struct device
*dev
)
409 struct sas_phy
*phy
= dev_to_phy(dev
);
411 put_device(dev
->parent
);
416 * sas_phy_alloc -- allocates and initialize a SAS PHY structure
417 * @parent: Parent device
420 * Allocates an SAS PHY structure. It will be added in the device tree
421 * below the device specified by @parent, which has to be either a Scsi_Host
425 * SAS PHY allocated or %NULL if the allocation failed.
427 struct sas_phy
*sas_phy_alloc(struct device
*parent
, int number
)
429 struct Scsi_Host
*shost
= dev_to_shost(parent
);
432 phy
= kzalloc(sizeof(*phy
), GFP_KERNEL
);
436 phy
->number
= number
;
438 device_initialize(&phy
->dev
);
439 phy
->dev
.parent
= get_device(parent
);
440 phy
->dev
.release
= sas_phy_release
;
441 INIT_LIST_HEAD(&phy
->port_siblings
);
442 if (scsi_is_sas_expander_device(parent
)) {
443 struct sas_rphy
*rphy
= dev_to_rphy(parent
);
444 sprintf(phy
->dev
.bus_id
, "phy-%d:%d:%d", shost
->host_no
,
445 rphy
->scsi_target_id
, number
);
447 sprintf(phy
->dev
.bus_id
, "phy-%d:%d", shost
->host_no
, number
);
449 transport_setup_device(&phy
->dev
);
453 EXPORT_SYMBOL(sas_phy_alloc
);
456 * sas_phy_add -- add a SAS PHY to the device hierachy
457 * @phy: The PHY to be added
459 * Publishes a SAS PHY to the rest of the system.
461 int sas_phy_add(struct sas_phy
*phy
)
465 error
= device_add(&phy
->dev
);
467 transport_add_device(&phy
->dev
);
468 transport_configure_device(&phy
->dev
);
473 EXPORT_SYMBOL(sas_phy_add
);
476 * sas_phy_free -- free a SAS PHY
477 * @phy: SAS PHY to free
479 * Frees the specified SAS PHY.
482 * This function must only be called on a PHY that has not
483 * sucessfully been added using sas_phy_add().
485 void sas_phy_free(struct sas_phy
*phy
)
487 transport_destroy_device(&phy
->dev
);
488 put_device(&phy
->dev
);
490 EXPORT_SYMBOL(sas_phy_free
);
493 * sas_phy_delete -- remove SAS PHY
494 * @phy: SAS PHY to remove
496 * Removes the specified SAS PHY. If the SAS PHY has an
497 * associated remote PHY it is removed before.
500 sas_phy_delete(struct sas_phy
*phy
)
502 struct device
*dev
= &phy
->dev
;
504 /* this happens if the phy is still part of a port when deleted */
505 BUG_ON(!list_empty(&phy
->port_siblings
));
507 transport_remove_device(dev
);
509 transport_destroy_device(dev
);
512 EXPORT_SYMBOL(sas_phy_delete
);
515 * scsi_is_sas_phy -- check if a struct device represents a SAS PHY
516 * @dev: device to check
519 * %1 if the device represents a SAS PHY, %0 else
521 int scsi_is_sas_phy(const struct device
*dev
)
523 return dev
->release
== sas_phy_release
;
525 EXPORT_SYMBOL(scsi_is_sas_phy
);
528 * SAS Port attributes
530 #define sas_port_show_simple(field, name, format_string, cast) \
532 show_sas_port_##name(struct class_device *cdev, char *buf) \
534 struct sas_port *port = transport_class_to_sas_port(cdev); \
536 return snprintf(buf, 20, format_string, cast port->field); \
539 #define sas_port_simple_attr(field, name, format_string, type) \
540 sas_port_show_simple(field, name, format_string, (type)) \
541 static CLASS_DEVICE_ATTR(name, S_IRUGO, show_sas_port_##name, NULL)
543 sas_port_simple_attr(num_phys
, num_phys
, "%d\n", int);
545 static DECLARE_TRANSPORT_CLASS(sas_port_class
,
546 "sas_port", NULL
, NULL
, NULL
);
548 static int sas_port_match(struct attribute_container
*cont
, struct device
*dev
)
550 struct Scsi_Host
*shost
;
551 struct sas_internal
*i
;
553 if (!scsi_is_sas_port(dev
))
555 shost
= dev_to_shost(dev
->parent
);
557 if (!shost
->transportt
)
559 if (shost
->transportt
->host_attrs
.ac
.class !=
560 &sas_host_class
.class)
563 i
= to_sas_internal(shost
->transportt
);
564 return &i
->port_attr_cont
.ac
== cont
;
568 static void sas_port_release(struct device
*dev
)
570 struct sas_port
*port
= dev_to_sas_port(dev
);
572 BUG_ON(!list_empty(&port
->phy_list
));
574 put_device(dev
->parent
);
578 static void sas_port_create_link(struct sas_port
*port
,
581 sysfs_create_link(&port
->dev
.kobj
, &phy
->dev
.kobj
, phy
->dev
.bus_id
);
582 sysfs_create_link(&phy
->dev
.kobj
, &port
->dev
.kobj
, "port");
585 static void sas_port_delete_link(struct sas_port
*port
,
588 sysfs_remove_link(&port
->dev
.kobj
, phy
->dev
.bus_id
);
589 sysfs_remove_link(&phy
->dev
.kobj
, "port");
592 /** sas_port_alloc - allocate and initialize a SAS port structure
594 * @parent: parent device
595 * @port_id: port number
597 * Allocates a SAS port structure. It will be added to the device tree
598 * below the device specified by @parent which must be either a Scsi_Host
599 * or a sas_expander_device.
601 * Returns %NULL on error
603 struct sas_port
*sas_port_alloc(struct device
*parent
, int port_id
)
605 struct Scsi_Host
*shost
= dev_to_shost(parent
);
606 struct sas_port
*port
;
608 port
= kzalloc(sizeof(*port
), GFP_KERNEL
);
612 port
->port_identifier
= port_id
;
614 device_initialize(&port
->dev
);
616 port
->dev
.parent
= get_device(parent
);
617 port
->dev
.release
= sas_port_release
;
619 mutex_init(&port
->phy_list_mutex
);
620 INIT_LIST_HEAD(&port
->phy_list
);
622 if (scsi_is_sas_expander_device(parent
)) {
623 struct sas_rphy
*rphy
= dev_to_rphy(parent
);
624 sprintf(port
->dev
.bus_id
, "port-%d:%d:%d", shost
->host_no
,
625 rphy
->scsi_target_id
, port
->port_identifier
);
627 sprintf(port
->dev
.bus_id
, "port-%d:%d", shost
->host_no
,
628 port
->port_identifier
);
630 transport_setup_device(&port
->dev
);
634 EXPORT_SYMBOL(sas_port_alloc
);
636 /** sas_port_alloc_num - allocate and initialize a SAS port structure
638 * @parent: parent device
640 * Allocates a SAS port structure and a number to go with it. This
641 * interface is really for adapters where the port number has no
642 * meansing, so the sas class should manage them. It will be added to
643 * the device tree below the device specified by @parent which must be
644 * either a Scsi_Host or a sas_expander_device.
646 * Returns %NULL on error
648 struct sas_port
*sas_port_alloc_num(struct device
*parent
)
651 struct Scsi_Host
*shost
= dev_to_shost(parent
);
652 struct sas_host_attrs
*sas_host
= to_sas_host_attrs(shost
);
654 /* FIXME: use idr for this eventually */
655 mutex_lock(&sas_host
->lock
);
656 if (scsi_is_sas_expander_device(parent
)) {
657 struct sas_rphy
*rphy
= dev_to_rphy(parent
);
658 struct sas_expander_device
*exp
= rphy_to_expander_device(rphy
);
660 index
= exp
->next_port_id
++;
662 index
= sas_host
->next_port_id
++;
663 mutex_unlock(&sas_host
->lock
);
664 return sas_port_alloc(parent
, index
);
666 EXPORT_SYMBOL(sas_port_alloc_num
);
669 * sas_port_add - add a SAS port to the device hierarchy
671 * @port: port to be added
673 * publishes a port to the rest of the system
675 int sas_port_add(struct sas_port
*port
)
679 /* No phys should be added until this is made visible */
680 BUG_ON(!list_empty(&port
->phy_list
));
682 error
= device_add(&port
->dev
);
687 transport_add_device(&port
->dev
);
688 transport_configure_device(&port
->dev
);
692 EXPORT_SYMBOL(sas_port_add
);
695 * sas_port_free -- free a SAS PORT
696 * @port: SAS PORT to free
698 * Frees the specified SAS PORT.
701 * This function must only be called on a PORT that has not
702 * sucessfully been added using sas_port_add().
704 void sas_port_free(struct sas_port
*port
)
706 transport_destroy_device(&port
->dev
);
707 put_device(&port
->dev
);
709 EXPORT_SYMBOL(sas_port_free
);
712 * sas_port_delete -- remove SAS PORT
713 * @port: SAS PORT to remove
715 * Removes the specified SAS PORT. If the SAS PORT has an
716 * associated phys, unlink them from the port as well.
718 void sas_port_delete(struct sas_port
*port
)
720 struct device
*dev
= &port
->dev
;
721 struct sas_phy
*phy
, *tmp_phy
;
724 sas_rphy_delete(port
->rphy
);
728 mutex_lock(&port
->phy_list_mutex
);
729 list_for_each_entry_safe(phy
, tmp_phy
, &port
->phy_list
,
731 sas_port_delete_link(port
, phy
);
732 list_del_init(&phy
->port_siblings
);
734 mutex_unlock(&port
->phy_list_mutex
);
736 if (port
->is_backlink
) {
737 struct device
*parent
= port
->dev
.parent
;
739 sysfs_remove_link(&port
->dev
.kobj
, parent
->bus_id
);
740 port
->is_backlink
= 0;
743 transport_remove_device(dev
);
745 transport_destroy_device(dev
);
748 EXPORT_SYMBOL(sas_port_delete
);
751 * scsi_is_sas_port -- check if a struct device represents a SAS port
752 * @dev: device to check
755 * %1 if the device represents a SAS Port, %0 else
757 int scsi_is_sas_port(const struct device
*dev
)
759 return dev
->release
== sas_port_release
;
761 EXPORT_SYMBOL(scsi_is_sas_port
);
764 * sas_port_add_phy - add another phy to a port to form a wide port
765 * @port: port to add the phy to
768 * When a port is initially created, it is empty (has no phys). All
769 * ports must have at least one phy to operated, and all wide ports
770 * must have at least two. The current code makes no difference
771 * between ports and wide ports, but the only object that can be
772 * connected to a remote device is a port, so ports must be formed on
773 * all devices with phys if they're connected to anything.
775 void sas_port_add_phy(struct sas_port
*port
, struct sas_phy
*phy
)
777 mutex_lock(&port
->phy_list_mutex
);
778 if (unlikely(!list_empty(&phy
->port_siblings
))) {
779 /* make sure we're already on this port */
782 list_for_each_entry(tmp
, &port
->phy_list
, port_siblings
)
785 /* If this trips, you added a phy that was already
786 * part of a different port */
787 if (unlikely(tmp
!= phy
)) {
788 dev_printk(KERN_ERR
, &port
->dev
, "trying to add phy %s fails: it's already part of another port\n", phy
->dev
.bus_id
);
792 sas_port_create_link(port
, phy
);
793 list_add_tail(&phy
->port_siblings
, &port
->phy_list
);
796 mutex_unlock(&port
->phy_list_mutex
);
798 EXPORT_SYMBOL(sas_port_add_phy
);
801 * sas_port_delete_phy - remove a phy from a port or wide port
802 * @port: port to remove the phy from
803 * @phy: phy to remove
805 * This operation is used for tearing down ports again. It must be
806 * done to every port or wide port before calling sas_port_delete.
808 void sas_port_delete_phy(struct sas_port
*port
, struct sas_phy
*phy
)
810 mutex_lock(&port
->phy_list_mutex
);
811 sas_port_delete_link(port
, phy
);
812 list_del_init(&phy
->port_siblings
);
814 mutex_unlock(&port
->phy_list_mutex
);
816 EXPORT_SYMBOL(sas_port_delete_phy
);
818 void sas_port_mark_backlink(struct sas_port
*port
)
820 struct device
*parent
= port
->dev
.parent
->parent
->parent
;
822 if (port
->is_backlink
)
824 port
->is_backlink
= 1;
825 sysfs_create_link(&port
->dev
.kobj
, &parent
->kobj
,
829 EXPORT_SYMBOL(sas_port_mark_backlink
);
832 * SAS remote PHY attributes.
835 #define sas_rphy_show_simple(field, name, format_string, cast) \
837 show_sas_rphy_##name(struct class_device *cdev, char *buf) \
839 struct sas_rphy *rphy = transport_class_to_rphy(cdev); \
841 return snprintf(buf, 20, format_string, cast rphy->field); \
844 #define sas_rphy_simple_attr(field, name, format_string, type) \
845 sas_rphy_show_simple(field, name, format_string, (type)) \
846 static SAS_CLASS_DEVICE_ATTR(rphy, name, S_IRUGO, \
847 show_sas_rphy_##name, NULL)
849 #define sas_rphy_show_protocol(field, name) \
851 show_sas_rphy_##name(struct class_device *cdev, char *buf) \
853 struct sas_rphy *rphy = transport_class_to_rphy(cdev); \
856 return snprintf(buf, 20, "none\n"); \
857 return get_sas_protocol_names(rphy->field, buf); \
860 #define sas_rphy_protocol_attr(field, name) \
861 sas_rphy_show_protocol(field, name) \
862 static SAS_CLASS_DEVICE_ATTR(rphy, name, S_IRUGO, \
863 show_sas_rphy_##name, NULL)
866 show_sas_rphy_device_type(struct class_device
*cdev
, char *buf
)
868 struct sas_rphy
*rphy
= transport_class_to_rphy(cdev
);
870 if (!rphy
->identify
.device_type
)
871 return snprintf(buf
, 20, "none\n");
872 return get_sas_device_type_names(
873 rphy
->identify
.device_type
, buf
);
876 static SAS_CLASS_DEVICE_ATTR(rphy
, device_type
, S_IRUGO
,
877 show_sas_rphy_device_type
, NULL
);
880 show_sas_rphy_enclosure_identifier(struct class_device
*cdev
, char *buf
)
882 struct sas_rphy
*rphy
= transport_class_to_rphy(cdev
);
883 struct sas_phy
*phy
= dev_to_phy(rphy
->dev
.parent
);
884 struct Scsi_Host
*shost
= dev_to_shost(phy
->dev
.parent
);
885 struct sas_internal
*i
= to_sas_internal(shost
->transportt
);
890 * Only devices behind an expander are supported, because the
891 * enclosure identifier is a SMP feature.
893 if (scsi_is_sas_phy_local(phy
))
896 error
= i
->f
->get_enclosure_identifier(rphy
, &identifier
);
899 return sprintf(buf
, "0x%llx\n", (unsigned long long)identifier
);
902 static SAS_CLASS_DEVICE_ATTR(rphy
, enclosure_identifier
, S_IRUGO
,
903 show_sas_rphy_enclosure_identifier
, NULL
);
906 show_sas_rphy_bay_identifier(struct class_device
*cdev
, char *buf
)
908 struct sas_rphy
*rphy
= transport_class_to_rphy(cdev
);
909 struct sas_phy
*phy
= dev_to_phy(rphy
->dev
.parent
);
910 struct Scsi_Host
*shost
= dev_to_shost(phy
->dev
.parent
);
911 struct sas_internal
*i
= to_sas_internal(shost
->transportt
);
914 if (scsi_is_sas_phy_local(phy
))
917 val
= i
->f
->get_bay_identifier(rphy
);
920 return sprintf(buf
, "%d\n", val
);
923 static SAS_CLASS_DEVICE_ATTR(rphy
, bay_identifier
, S_IRUGO
,
924 show_sas_rphy_bay_identifier
, NULL
);
926 sas_rphy_protocol_attr(identify
.initiator_port_protocols
,
927 initiator_port_protocols
);
928 sas_rphy_protocol_attr(identify
.target_port_protocols
, target_port_protocols
);
929 sas_rphy_simple_attr(identify
.sas_address
, sas_address
, "0x%016llx\n",
931 sas_rphy_simple_attr(identify
.phy_identifier
, phy_identifier
, "%d\n", u8
);
933 /* only need 8 bytes of data plus header (4 or 8) */
936 int sas_read_port_mode_page(struct scsi_device
*sdev
)
938 char *buffer
= kzalloc(BUF_SIZE
, GFP_KERNEL
), *msdata
;
939 struct sas_rphy
*rphy
= target_to_rphy(sdev
->sdev_target
);
940 struct sas_end_device
*rdev
;
941 struct scsi_mode_data mode_data
;
944 BUG_ON(rphy
->identify
.device_type
!= SAS_END_DEVICE
);
946 rdev
= rphy_to_end_device(rphy
);
951 res
= scsi_mode_sense(sdev
, 1, 0x19, buffer
, BUF_SIZE
, 30*HZ
, 3,
955 if (!scsi_status_is_good(res
))
958 msdata
= buffer
+ mode_data
.header_length
+
959 mode_data
.block_descriptor_length
;
961 if (msdata
- buffer
> BUF_SIZE
- 8)
966 rdev
->ready_led_meaning
= msdata
[2] & 0x10 ? 1 : 0;
967 rdev
->I_T_nexus_loss_timeout
= (msdata
[4] << 8) + msdata
[5];
968 rdev
->initiator_response_timeout
= (msdata
[6] << 8) + msdata
[7];
974 EXPORT_SYMBOL(sas_read_port_mode_page
);
976 static DECLARE_TRANSPORT_CLASS(sas_end_dev_class
,
977 "sas_end_device", NULL
, NULL
, NULL
);
979 #define sas_end_dev_show_simple(field, name, format_string, cast) \
981 show_sas_end_dev_##name(struct class_device *cdev, char *buf) \
983 struct sas_rphy *rphy = transport_class_to_rphy(cdev); \
984 struct sas_end_device *rdev = rphy_to_end_device(rphy); \
986 return snprintf(buf, 20, format_string, cast rdev->field); \
989 #define sas_end_dev_simple_attr(field, name, format_string, type) \
990 sas_end_dev_show_simple(field, name, format_string, (type)) \
991 static SAS_CLASS_DEVICE_ATTR(end_dev, name, S_IRUGO, \
992 show_sas_end_dev_##name, NULL)
994 sas_end_dev_simple_attr(ready_led_meaning
, ready_led_meaning
, "%d\n", int);
995 sas_end_dev_simple_attr(I_T_nexus_loss_timeout
, I_T_nexus_loss_timeout
,
997 sas_end_dev_simple_attr(initiator_response_timeout
, initiator_response_timeout
,
1000 static DECLARE_TRANSPORT_CLASS(sas_expander_class
,
1001 "sas_expander", NULL
, NULL
, NULL
);
1003 #define sas_expander_show_simple(field, name, format_string, cast) \
1005 show_sas_expander_##name(struct class_device *cdev, char *buf) \
1007 struct sas_rphy *rphy = transport_class_to_rphy(cdev); \
1008 struct sas_expander_device *edev = rphy_to_expander_device(rphy); \
1010 return snprintf(buf, 20, format_string, cast edev->field); \
1013 #define sas_expander_simple_attr(field, name, format_string, type) \
1014 sas_expander_show_simple(field, name, format_string, (type)) \
1015 static SAS_CLASS_DEVICE_ATTR(expander, name, S_IRUGO, \
1016 show_sas_expander_##name, NULL)
1018 sas_expander_simple_attr(vendor_id
, vendor_id
, "%s\n", char *);
1019 sas_expander_simple_attr(product_id
, product_id
, "%s\n", char *);
1020 sas_expander_simple_attr(product_rev
, product_rev
, "%s\n", char *);
1021 sas_expander_simple_attr(component_vendor_id
, component_vendor_id
,
1023 sas_expander_simple_attr(component_id
, component_id
, "%u\n", unsigned int);
1024 sas_expander_simple_attr(component_revision_id
, component_revision_id
, "%u\n",
1026 sas_expander_simple_attr(level
, level
, "%d\n", int);
1028 static DECLARE_TRANSPORT_CLASS(sas_rphy_class
,
1029 "sas_device", NULL
, NULL
, NULL
);
1031 static int sas_rphy_match(struct attribute_container
*cont
, struct device
*dev
)
1033 struct Scsi_Host
*shost
;
1034 struct sas_internal
*i
;
1036 if (!scsi_is_sas_rphy(dev
))
1038 shost
= dev_to_shost(dev
->parent
->parent
);
1040 if (!shost
->transportt
)
1042 if (shost
->transportt
->host_attrs
.ac
.class !=
1043 &sas_host_class
.class)
1046 i
= to_sas_internal(shost
->transportt
);
1047 return &i
->rphy_attr_cont
.ac
== cont
;
1050 static int sas_end_dev_match(struct attribute_container
*cont
,
1053 struct Scsi_Host
*shost
;
1054 struct sas_internal
*i
;
1055 struct sas_rphy
*rphy
;
1057 if (!scsi_is_sas_rphy(dev
))
1059 shost
= dev_to_shost(dev
->parent
->parent
);
1060 rphy
= dev_to_rphy(dev
);
1062 if (!shost
->transportt
)
1064 if (shost
->transportt
->host_attrs
.ac
.class !=
1065 &sas_host_class
.class)
1068 i
= to_sas_internal(shost
->transportt
);
1069 return &i
->end_dev_attr_cont
.ac
== cont
&&
1070 rphy
->identify
.device_type
== SAS_END_DEVICE
;
1073 static int sas_expander_match(struct attribute_container
*cont
,
1076 struct Scsi_Host
*shost
;
1077 struct sas_internal
*i
;
1078 struct sas_rphy
*rphy
;
1080 if (!scsi_is_sas_rphy(dev
))
1082 shost
= dev_to_shost(dev
->parent
->parent
);
1083 rphy
= dev_to_rphy(dev
);
1085 if (!shost
->transportt
)
1087 if (shost
->transportt
->host_attrs
.ac
.class !=
1088 &sas_host_class
.class)
1091 i
= to_sas_internal(shost
->transportt
);
1092 return &i
->expander_attr_cont
.ac
== cont
&&
1093 (rphy
->identify
.device_type
== SAS_EDGE_EXPANDER_DEVICE
||
1094 rphy
->identify
.device_type
== SAS_FANOUT_EXPANDER_DEVICE
);
1097 static void sas_expander_release(struct device
*dev
)
1099 struct sas_rphy
*rphy
= dev_to_rphy(dev
);
1100 struct sas_expander_device
*edev
= rphy_to_expander_device(rphy
);
1102 put_device(dev
->parent
);
1106 static void sas_end_device_release(struct device
*dev
)
1108 struct sas_rphy
*rphy
= dev_to_rphy(dev
);
1109 struct sas_end_device
*edev
= rphy_to_end_device(rphy
);
1111 put_device(dev
->parent
);
1116 * sas_rphy_initialize - common rphy intialization
1117 * @rphy: rphy to initialise
1119 * Used by both sas_end_device_alloc() and sas_expander_alloc() to
1120 * initialise the common rphy component of each.
1122 static void sas_rphy_initialize(struct sas_rphy
*rphy
)
1124 INIT_LIST_HEAD(&rphy
->list
);
1128 * sas_end_device_alloc - allocate an rphy for an end device
1130 * Allocates an SAS remote PHY structure, connected to @parent.
1133 * SAS PHY allocated or %NULL if the allocation failed.
1135 struct sas_rphy
*sas_end_device_alloc(struct sas_port
*parent
)
1137 struct Scsi_Host
*shost
= dev_to_shost(&parent
->dev
);
1138 struct sas_end_device
*rdev
;
1140 rdev
= kzalloc(sizeof(*rdev
), GFP_KERNEL
);
1145 device_initialize(&rdev
->rphy
.dev
);
1146 rdev
->rphy
.dev
.parent
= get_device(&parent
->dev
);
1147 rdev
->rphy
.dev
.release
= sas_end_device_release
;
1148 if (scsi_is_sas_expander_device(parent
->dev
.parent
)) {
1149 struct sas_rphy
*rphy
= dev_to_rphy(parent
->dev
.parent
);
1150 sprintf(rdev
->rphy
.dev
.bus_id
, "end_device-%d:%d:%d",
1151 shost
->host_no
, rphy
->scsi_target_id
, parent
->port_identifier
);
1153 sprintf(rdev
->rphy
.dev
.bus_id
, "end_device-%d:%d",
1154 shost
->host_no
, parent
->port_identifier
);
1155 rdev
->rphy
.identify
.device_type
= SAS_END_DEVICE
;
1156 sas_rphy_initialize(&rdev
->rphy
);
1157 transport_setup_device(&rdev
->rphy
.dev
);
1161 EXPORT_SYMBOL(sas_end_device_alloc
);
1164 * sas_expander_alloc - allocate an rphy for an end device
1166 * Allocates an SAS remote PHY structure, connected to @parent.
1169 * SAS PHY allocated or %NULL if the allocation failed.
1171 struct sas_rphy
*sas_expander_alloc(struct sas_port
*parent
,
1172 enum sas_device_type type
)
1174 struct Scsi_Host
*shost
= dev_to_shost(&parent
->dev
);
1175 struct sas_expander_device
*rdev
;
1176 struct sas_host_attrs
*sas_host
= to_sas_host_attrs(shost
);
1178 BUG_ON(type
!= SAS_EDGE_EXPANDER_DEVICE
&&
1179 type
!= SAS_FANOUT_EXPANDER_DEVICE
);
1181 rdev
= kzalloc(sizeof(*rdev
), GFP_KERNEL
);
1186 device_initialize(&rdev
->rphy
.dev
);
1187 rdev
->rphy
.dev
.parent
= get_device(&parent
->dev
);
1188 rdev
->rphy
.dev
.release
= sas_expander_release
;
1189 mutex_lock(&sas_host
->lock
);
1190 rdev
->rphy
.scsi_target_id
= sas_host
->next_expander_id
++;
1191 mutex_unlock(&sas_host
->lock
);
1192 sprintf(rdev
->rphy
.dev
.bus_id
, "expander-%d:%d",
1193 shost
->host_no
, rdev
->rphy
.scsi_target_id
);
1194 rdev
->rphy
.identify
.device_type
= type
;
1195 sas_rphy_initialize(&rdev
->rphy
);
1196 transport_setup_device(&rdev
->rphy
.dev
);
1200 EXPORT_SYMBOL(sas_expander_alloc
);
1203 * sas_rphy_add -- add a SAS remote PHY to the device hierachy
1204 * @rphy: The remote PHY to be added
1206 * Publishes a SAS remote PHY to the rest of the system.
1208 int sas_rphy_add(struct sas_rphy
*rphy
)
1210 struct sas_port
*parent
= dev_to_sas_port(rphy
->dev
.parent
);
1211 struct Scsi_Host
*shost
= dev_to_shost(parent
->dev
.parent
);
1212 struct sas_host_attrs
*sas_host
= to_sas_host_attrs(shost
);
1213 struct sas_identify
*identify
= &rphy
->identify
;
1218 parent
->rphy
= rphy
;
1220 error
= device_add(&rphy
->dev
);
1223 transport_add_device(&rphy
->dev
);
1224 transport_configure_device(&rphy
->dev
);
1226 mutex_lock(&sas_host
->lock
);
1227 list_add_tail(&rphy
->list
, &sas_host
->rphy_list
);
1228 if (identify
->device_type
== SAS_END_DEVICE
&&
1229 (identify
->target_port_protocols
&
1230 (SAS_PROTOCOL_SSP
|SAS_PROTOCOL_STP
|SAS_PROTOCOL_SATA
)))
1231 rphy
->scsi_target_id
= sas_host
->next_target_id
++;
1232 else if (identify
->device_type
== SAS_END_DEVICE
)
1233 rphy
->scsi_target_id
= -1;
1234 mutex_unlock(&sas_host
->lock
);
1236 if (identify
->device_type
== SAS_END_DEVICE
&&
1237 rphy
->scsi_target_id
!= -1) {
1238 scsi_scan_target(&rphy
->dev
, 0,
1239 rphy
->scsi_target_id
, ~0, 0);
1244 EXPORT_SYMBOL(sas_rphy_add
);
1247 * sas_rphy_free -- free a SAS remote PHY
1248 * @rphy SAS remote PHY to free
1250 * Frees the specified SAS remote PHY.
1253 * This function must only be called on a remote
1254 * PHY that has not sucessfully been added using
1257 void sas_rphy_free(struct sas_rphy
*rphy
)
1259 struct device
*dev
= &rphy
->dev
;
1260 struct Scsi_Host
*shost
= dev_to_shost(rphy
->dev
.parent
->parent
);
1261 struct sas_host_attrs
*sas_host
= to_sas_host_attrs(shost
);
1263 mutex_lock(&sas_host
->lock
);
1264 list_del(&rphy
->list
);
1265 mutex_unlock(&sas_host
->lock
);
1267 transport_destroy_device(dev
);
1271 EXPORT_SYMBOL(sas_rphy_free
);
1274 * sas_rphy_delete -- remove SAS remote PHY
1275 * @rphy: SAS remote PHY to remove
1277 * Removes the specified SAS remote PHY.
1280 sas_rphy_delete(struct sas_rphy
*rphy
)
1282 struct device
*dev
= &rphy
->dev
;
1283 struct sas_port
*parent
= dev_to_sas_port(dev
->parent
);
1284 struct Scsi_Host
*shost
= dev_to_shost(parent
->dev
.parent
);
1285 struct sas_host_attrs
*sas_host
= to_sas_host_attrs(shost
);
1287 switch (rphy
->identify
.device_type
) {
1288 case SAS_END_DEVICE
:
1289 scsi_remove_target(dev
);
1291 case SAS_EDGE_EXPANDER_DEVICE
:
1292 case SAS_FANOUT_EXPANDER_DEVICE
:
1293 sas_remove_children(dev
);
1299 transport_remove_device(dev
);
1301 transport_destroy_device(dev
);
1303 mutex_lock(&sas_host
->lock
);
1304 list_del(&rphy
->list
);
1305 mutex_unlock(&sas_host
->lock
);
1307 parent
->rphy
= NULL
;
1311 EXPORT_SYMBOL(sas_rphy_delete
);
1314 * scsi_is_sas_rphy -- check if a struct device represents a SAS remote PHY
1315 * @dev: device to check
1318 * %1 if the device represents a SAS remote PHY, %0 else
1320 int scsi_is_sas_rphy(const struct device
*dev
)
1322 return dev
->release
== sas_end_device_release
||
1323 dev
->release
== sas_expander_release
;
1325 EXPORT_SYMBOL(scsi_is_sas_rphy
);
1332 static int sas_user_scan(struct Scsi_Host
*shost
, uint channel
,
1335 struct sas_host_attrs
*sas_host
= to_sas_host_attrs(shost
);
1336 struct sas_rphy
*rphy
;
1338 mutex_lock(&sas_host
->lock
);
1339 list_for_each_entry(rphy
, &sas_host
->rphy_list
, list
) {
1340 if (rphy
->identify
.device_type
!= SAS_END_DEVICE
||
1341 rphy
->scsi_target_id
== -1)
1344 if ((channel
== SCAN_WILD_CARD
|| channel
== 0) &&
1345 (id
== SCAN_WILD_CARD
|| id
== rphy
->scsi_target_id
)) {
1346 scsi_scan_target(&rphy
->dev
, 0,
1347 rphy
->scsi_target_id
, lun
, 1);
1350 mutex_unlock(&sas_host
->lock
);
1357 * Setup / Teardown code
1360 #define SETUP_TEMPLATE(attrb, field, perm, test) \
1361 i->private_##attrb[count] = class_device_attr_##field; \
1362 i->private_##attrb[count].attr.mode = perm; \
1363 i->attrb[count] = &i->private_##attrb[count]; \
1367 #define SETUP_TEMPLATE_RW(attrb, field, perm, test, ro_test, ro_perm) \
1368 i->private_##attrb[count] = class_device_attr_##field; \
1369 i->private_##attrb[count].attr.mode = perm; \
1371 i->private_##attrb[count].attr.mode = ro_perm; \
1372 i->private_##attrb[count].store = NULL; \
1374 i->attrb[count] = &i->private_##attrb[count]; \
1378 #define SETUP_RPORT_ATTRIBUTE(field) \
1379 SETUP_TEMPLATE(rphy_attrs, field, S_IRUGO, 1)
1381 #define SETUP_OPTIONAL_RPORT_ATTRIBUTE(field, func) \
1382 SETUP_TEMPLATE(rphy_attrs, field, S_IRUGO, i->f->func)
1384 #define SETUP_PHY_ATTRIBUTE(field) \
1385 SETUP_TEMPLATE(phy_attrs, field, S_IRUGO, 1)
1387 #define SETUP_PHY_ATTRIBUTE_RW(field) \
1388 SETUP_TEMPLATE_RW(phy_attrs, field, S_IRUGO | S_IWUSR, 1, \
1389 !i->f->set_phy_speed, S_IRUGO)
1391 #define SETUP_PORT_ATTRIBUTE(field) \
1392 SETUP_TEMPLATE(port_attrs, field, S_IRUGO, 1)
1394 #define SETUP_OPTIONAL_PHY_ATTRIBUTE(field, func) \
1395 SETUP_TEMPLATE(phy_attrs, field, S_IRUGO, i->f->func)
1397 #define SETUP_PHY_ATTRIBUTE_WRONLY(field) \
1398 SETUP_TEMPLATE(phy_attrs, field, S_IWUGO, 1)
1400 #define SETUP_OPTIONAL_PHY_ATTRIBUTE_WRONLY(field, func) \
1401 SETUP_TEMPLATE(phy_attrs, field, S_IWUGO, i->f->func)
1403 #define SETUP_END_DEV_ATTRIBUTE(field) \
1404 SETUP_TEMPLATE(end_dev_attrs, field, S_IRUGO, 1)
1406 #define SETUP_EXPANDER_ATTRIBUTE(field) \
1407 SETUP_TEMPLATE(expander_attrs, expander_##field, S_IRUGO, 1)
1410 * sas_attach_transport -- instantiate SAS transport template
1411 * @ft: SAS transport class function template
1413 struct scsi_transport_template
*
1414 sas_attach_transport(struct sas_function_template
*ft
)
1416 struct sas_internal
*i
;
1419 i
= kzalloc(sizeof(struct sas_internal
), GFP_KERNEL
);
1423 i
->t
.user_scan
= sas_user_scan
;
1425 i
->t
.host_attrs
.ac
.attrs
= &i
->host_attrs
[0];
1426 i
->t
.host_attrs
.ac
.class = &sas_host_class
.class;
1427 i
->t
.host_attrs
.ac
.match
= sas_host_match
;
1428 transport_container_register(&i
->t
.host_attrs
);
1429 i
->t
.host_size
= sizeof(struct sas_host_attrs
);
1431 i
->phy_attr_cont
.ac
.class = &sas_phy_class
.class;
1432 i
->phy_attr_cont
.ac
.attrs
= &i
->phy_attrs
[0];
1433 i
->phy_attr_cont
.ac
.match
= sas_phy_match
;
1434 transport_container_register(&i
->phy_attr_cont
);
1436 i
->port_attr_cont
.ac
.class = &sas_port_class
.class;
1437 i
->port_attr_cont
.ac
.attrs
= &i
->port_attrs
[0];
1438 i
->port_attr_cont
.ac
.match
= sas_port_match
;
1439 transport_container_register(&i
->port_attr_cont
);
1441 i
->rphy_attr_cont
.ac
.class = &sas_rphy_class
.class;
1442 i
->rphy_attr_cont
.ac
.attrs
= &i
->rphy_attrs
[0];
1443 i
->rphy_attr_cont
.ac
.match
= sas_rphy_match
;
1444 transport_container_register(&i
->rphy_attr_cont
);
1446 i
->end_dev_attr_cont
.ac
.class = &sas_end_dev_class
.class;
1447 i
->end_dev_attr_cont
.ac
.attrs
= &i
->end_dev_attrs
[0];
1448 i
->end_dev_attr_cont
.ac
.match
= sas_end_dev_match
;
1449 transport_container_register(&i
->end_dev_attr_cont
);
1451 i
->expander_attr_cont
.ac
.class = &sas_expander_class
.class;
1452 i
->expander_attr_cont
.ac
.attrs
= &i
->expander_attrs
[0];
1453 i
->expander_attr_cont
.ac
.match
= sas_expander_match
;
1454 transport_container_register(&i
->expander_attr_cont
);
1459 SETUP_PORT_ATTRIBUTE(num_phys
);
1460 i
->host_attrs
[count
] = NULL
;
1463 SETUP_PHY_ATTRIBUTE(initiator_port_protocols
);
1464 SETUP_PHY_ATTRIBUTE(target_port_protocols
);
1465 SETUP_PHY_ATTRIBUTE(device_type
);
1466 SETUP_PHY_ATTRIBUTE(sas_address
);
1467 SETUP_PHY_ATTRIBUTE(phy_identifier
);
1468 //SETUP_PHY_ATTRIBUTE(port_identifier);
1469 SETUP_PHY_ATTRIBUTE(negotiated_linkrate
);
1470 SETUP_PHY_ATTRIBUTE(minimum_linkrate_hw
);
1471 SETUP_PHY_ATTRIBUTE_RW(minimum_linkrate
);
1472 SETUP_PHY_ATTRIBUTE(maximum_linkrate_hw
);
1473 SETUP_PHY_ATTRIBUTE_RW(maximum_linkrate
);
1475 SETUP_PHY_ATTRIBUTE(invalid_dword_count
);
1476 SETUP_PHY_ATTRIBUTE(running_disparity_error_count
);
1477 SETUP_PHY_ATTRIBUTE(loss_of_dword_sync_count
);
1478 SETUP_PHY_ATTRIBUTE(phy_reset_problem_count
);
1479 SETUP_OPTIONAL_PHY_ATTRIBUTE_WRONLY(link_reset
, phy_reset
);
1480 SETUP_OPTIONAL_PHY_ATTRIBUTE_WRONLY(hard_reset
, phy_reset
);
1481 i
->phy_attrs
[count
] = NULL
;
1484 SETUP_PORT_ATTRIBUTE(num_phys
);
1485 i
->port_attrs
[count
] = NULL
;
1488 SETUP_RPORT_ATTRIBUTE(rphy_initiator_port_protocols
);
1489 SETUP_RPORT_ATTRIBUTE(rphy_target_port_protocols
);
1490 SETUP_RPORT_ATTRIBUTE(rphy_device_type
);
1491 SETUP_RPORT_ATTRIBUTE(rphy_sas_address
);
1492 SETUP_RPORT_ATTRIBUTE(rphy_phy_identifier
);
1493 SETUP_OPTIONAL_RPORT_ATTRIBUTE(rphy_enclosure_identifier
,
1494 get_enclosure_identifier
);
1495 SETUP_OPTIONAL_RPORT_ATTRIBUTE(rphy_bay_identifier
,
1496 get_bay_identifier
);
1497 i
->rphy_attrs
[count
] = NULL
;
1500 SETUP_END_DEV_ATTRIBUTE(end_dev_ready_led_meaning
);
1501 SETUP_END_DEV_ATTRIBUTE(end_dev_I_T_nexus_loss_timeout
);
1502 SETUP_END_DEV_ATTRIBUTE(end_dev_initiator_response_timeout
);
1503 i
->end_dev_attrs
[count
] = NULL
;
1506 SETUP_EXPANDER_ATTRIBUTE(vendor_id
);
1507 SETUP_EXPANDER_ATTRIBUTE(product_id
);
1508 SETUP_EXPANDER_ATTRIBUTE(product_rev
);
1509 SETUP_EXPANDER_ATTRIBUTE(component_vendor_id
);
1510 SETUP_EXPANDER_ATTRIBUTE(component_id
);
1511 SETUP_EXPANDER_ATTRIBUTE(component_revision_id
);
1512 SETUP_EXPANDER_ATTRIBUTE(level
);
1513 i
->expander_attrs
[count
] = NULL
;
1517 EXPORT_SYMBOL(sas_attach_transport
);
1520 * sas_release_transport -- release SAS transport template instance
1521 * @t: transport template instance
1523 void sas_release_transport(struct scsi_transport_template
*t
)
1525 struct sas_internal
*i
= to_sas_internal(t
);
1527 transport_container_unregister(&i
->t
.host_attrs
);
1528 transport_container_unregister(&i
->phy_attr_cont
);
1529 transport_container_unregister(&i
->port_attr_cont
);
1530 transport_container_unregister(&i
->rphy_attr_cont
);
1531 transport_container_unregister(&i
->end_dev_attr_cont
);
1532 transport_container_unregister(&i
->expander_attr_cont
);
1536 EXPORT_SYMBOL(sas_release_transport
);
1538 static __init
int sas_transport_init(void)
1542 error
= transport_class_register(&sas_host_class
);
1545 error
= transport_class_register(&sas_phy_class
);
1547 goto out_unregister_transport
;
1548 error
= transport_class_register(&sas_port_class
);
1550 goto out_unregister_phy
;
1551 error
= transport_class_register(&sas_rphy_class
);
1553 goto out_unregister_port
;
1554 error
= transport_class_register(&sas_end_dev_class
);
1556 goto out_unregister_rphy
;
1557 error
= transport_class_register(&sas_expander_class
);
1559 goto out_unregister_end_dev
;
1563 out_unregister_end_dev
:
1564 transport_class_unregister(&sas_end_dev_class
);
1565 out_unregister_rphy
:
1566 transport_class_unregister(&sas_rphy_class
);
1567 out_unregister_port
:
1568 transport_class_unregister(&sas_port_class
);
1570 transport_class_unregister(&sas_phy_class
);
1571 out_unregister_transport
:
1572 transport_class_unregister(&sas_host_class
);
1578 static void __exit
sas_transport_exit(void)
1580 transport_class_unregister(&sas_host_class
);
1581 transport_class_unregister(&sas_phy_class
);
1582 transport_class_unregister(&sas_port_class
);
1583 transport_class_unregister(&sas_rphy_class
);
1584 transport_class_unregister(&sas_end_dev_class
);
1585 transport_class_unregister(&sas_expander_class
);
1588 MODULE_AUTHOR("Christoph Hellwig");
1589 MODULE_DESCRIPTION("SAS Transphy Attributes");
1590 MODULE_LICENSE("GPL");
1592 module_init(sas_transport_init
);
1593 module_exit(sas_transport_exit
);