#define SAS_PORT_ATTRS 17
#define SAS_RPORT_ATTRS 7
#define SAS_END_DEV_ATTRS 3
+#define SAS_EXPANDER_ATTRS 7
struct sas_internal {
struct scsi_transport_template t;
struct class_device_attribute private_phy_attrs[SAS_PORT_ATTRS];
struct class_device_attribute private_rphy_attrs[SAS_RPORT_ATTRS];
struct class_device_attribute private_end_dev_attrs[SAS_END_DEV_ATTRS];
+ struct class_device_attribute private_expander_attrs[SAS_EXPANDER_ATTRS];
struct transport_container phy_attr_cont;
struct transport_container rphy_attr_cont;
struct transport_container end_dev_attr_cont;
+ struct transport_container expander_attr_cont;
/*
* The array of null terminated pointers to attributes
struct class_device_attribute *phy_attrs[SAS_PORT_ATTRS + 1];
struct class_device_attribute *rphy_attrs[SAS_RPORT_ATTRS + 1];
struct class_device_attribute *end_dev_attrs[SAS_END_DEV_ATTRS + 1];
+ struct class_device_attribute *expander_attrs[SAS_EXPANDER_ATTRS + 1];
};
#define to_sas_internal(tmpl) container_of(tmpl, struct sas_internal, t)
struct list_head rphy_list;
struct mutex lock;
u32 next_target_id;
+ u32 next_expander_id;
};
#define to_sas_host_attrs(host) ((struct sas_host_attrs *)(host)->shost_data)
INIT_LIST_HEAD(&sas_host->rphy_list);
mutex_init(&sas_host->lock);
sas_host->next_target_id = 0;
+ sas_host->next_expander_id = 0;
return 0;
}
device_initialize(&phy->dev);
phy->dev.parent = get_device(parent);
phy->dev.release = sas_phy_release;
- sprintf(phy->dev.bus_id, "phy-%d:%d", shost->host_no, number);
+ if (scsi_is_sas_expander_device(parent)) {
+ struct sas_rphy *rphy = dev_to_rphy(parent);
+ sprintf(phy->dev.bus_id, "phy-%d-%d:%d", shost->host_no,
+ rphy->scsi_target_id, number);
+ } else
+ sprintf(phy->dev.bus_id, "phy-%d:%d", shost->host_no, number);
transport_setup_device(&phy->dev);
}
EXPORT_SYMBOL(sas_read_port_mode_page);
+static DECLARE_TRANSPORT_CLASS(sas_end_dev_class,
+ "sas_end_device", NULL, NULL, NULL);
+
#define sas_end_dev_show_simple(field, name, format_string, cast) \
static ssize_t \
show_sas_end_dev_##name(struct class_device *cdev, char *buf) \
sas_end_dev_simple_attr(initiator_response_timeout, initiator_response_timeout,
"%d\n", int);
-static DECLARE_TRANSPORT_CLASS(sas_end_dev_class,
- "sas_end_device", NULL, NULL, NULL);
+static DECLARE_TRANSPORT_CLASS(sas_expander_class,
+ "sas_expander", NULL, NULL, NULL);
+
+#define sas_expander_show_simple(field, name, format_string, cast) \
+static ssize_t \
+show_sas_expander_##name(struct class_device *cdev, char *buf) \
+{ \
+ struct sas_rphy *rphy = transport_class_to_rphy(cdev); \
+ struct sas_expander_device *edev = rphy_to_expander_device(rphy); \
+ \
+ return snprintf(buf, 20, format_string, cast edev->field); \
+}
+
+#define sas_expander_simple_attr(field, name, format_string, type) \
+ sas_expander_show_simple(field, name, format_string, (type)) \
+static SAS_CLASS_DEVICE_ATTR(expander, name, S_IRUGO, \
+ show_sas_expander_##name, NULL)
+
+sas_expander_simple_attr(vendor_id, vendor_id, "%s\n", char *);
+sas_expander_simple_attr(product_id, product_id, "%s\n", char *);
+sas_expander_simple_attr(product_rev, product_rev, "%s\n", char *);
+sas_expander_simple_attr(component_vendor_id, component_vendor_id,
+ "%s\n", char *);
+sas_expander_simple_attr(component_id, component_id, "%u\n", unsigned int);
+sas_expander_simple_attr(component_revision_id, component_revision_id, "%u\n",
+ unsigned int);
+sas_expander_simple_attr(level, level, "%d\n", int);
static DECLARE_TRANSPORT_CLASS(sas_rphy_class,
- "sas_rphy", NULL, NULL, NULL);
+ "sas_device", NULL, NULL, NULL);
static int sas_rphy_match(struct attribute_container *cont, struct device *dev)
{
i = to_sas_internal(shost->transportt);
return &i->end_dev_attr_cont.ac == cont &&
- rphy->identify.device_type == SAS_END_DEVICE &&
- /* FIXME: remove contained eventually */
- rphy->contained;
+ rphy->identify.device_type == SAS_END_DEVICE;
+}
+
+static int sas_expander_match(struct attribute_container *cont,
+ struct device *dev)
+{
+ struct Scsi_Host *shost;
+ struct sas_internal *i;
+ struct sas_rphy *rphy;
+
+ if (!scsi_is_sas_rphy(dev))
+ return 0;
+ shost = dev_to_shost(dev->parent->parent);
+ rphy = dev_to_rphy(dev);
+
+ if (!shost->transportt)
+ return 0;
+ if (shost->transportt->host_attrs.ac.class !=
+ &sas_host_class.class)
+ return 0;
+
+ i = to_sas_internal(shost->transportt);
+ return &i->expander_attr_cont.ac == cont &&
+ (rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE ||
+ rphy->identify.device_type == SAS_FANOUT_EXPANDER_DEVICE);
+}
+
+static void sas_expander_release(struct device *dev)
+{
+ struct sas_rphy *rphy = dev_to_rphy(dev);
+ struct sas_expander_device *edev = rphy_to_expander_device(rphy);
+
+ put_device(dev->parent);
+ kfree(edev);
}
-static void sas_rphy_release(struct device *dev)
+static void sas_end_device_release(struct device *dev)
{
struct sas_rphy *rphy = dev_to_rphy(dev);
+ struct sas_end_device *edev = rphy_to_end_device(rphy);
put_device(dev->parent);
- kfree(rphy);
+ kfree(edev);
}
/**
- * sas_rphy_alloc -- allocates and initialize a SAS remote PHY structure
- * @parent: SAS PHY this remote PHY is conneted to
+ * sas_end_device_alloc - allocate an rphy for an end device
*
* Allocates an SAS remote PHY structure, connected to @parent.
*
* Returns:
* SAS PHY allocated or %NULL if the allocation failed.
*/
-struct sas_rphy *sas_rphy_alloc(struct sas_phy *parent)
+struct sas_rphy *sas_end_device_alloc(struct sas_phy *parent)
{
struct Scsi_Host *shost = dev_to_shost(&parent->dev);
- struct sas_rphy *rphy;
+ struct sas_end_device *rdev;
- rphy = kzalloc(sizeof(*rphy), GFP_KERNEL);
- if (!rphy) {
+ rdev = kzalloc(sizeof(*rdev), GFP_KERNEL);
+ if (!rdev) {
put_device(&parent->dev);
return NULL;
}
- device_initialize(&rphy->dev);
- rphy->dev.parent = get_device(&parent->dev);
- rphy->dev.release = sas_rphy_release;
- sprintf(rphy->dev.bus_id, "rphy-%d:%d-%d",
+ device_initialize(&rdev->rphy.dev);
+ rdev->rphy.dev.parent = get_device(&parent->dev);
+ rdev->rphy.dev.release = sas_end_device_release;
+ sprintf(rdev->rphy.dev.bus_id, "end_device-%d:%d-%d",
shost->host_no, parent->port_identifier, parent->number);
- transport_setup_device(&rphy->dev);
+ rdev->rphy.identify.device_type = SAS_END_DEVICE;
+ transport_setup_device(&rdev->rphy.dev);
- return rphy;
+ return &rdev->rphy;
}
-EXPORT_SYMBOL(sas_rphy_alloc);
+EXPORT_SYMBOL(sas_end_device_alloc);
/**
- * sas_end_device_alloc - allocate an rphy for an end device
+ * sas_expander_alloc - allocate an rphy for an end device
*
* Allocates an SAS remote PHY structure, connected to @parent.
*
* Returns:
* SAS PHY allocated or %NULL if the allocation failed.
*/
-struct sas_rphy *sas_end_device_alloc(struct sas_phy *parent)
+struct sas_rphy *sas_expander_alloc(struct sas_phy *parent,
+ enum sas_device_type type)
{
struct Scsi_Host *shost = dev_to_shost(&parent->dev);
- struct sas_end_device *rdev;
+ struct sas_expander_device *rdev;
+ struct sas_host_attrs *sas_host = to_sas_host_attrs(shost);
+
+ BUG_ON(type != SAS_EDGE_EXPANDER_DEVICE &&
+ type != SAS_FANOUT_EXPANDER_DEVICE);
rdev = kzalloc(sizeof(*rdev), GFP_KERNEL);
if (!rdev) {
device_initialize(&rdev->rphy.dev);
rdev->rphy.dev.parent = get_device(&parent->dev);
- rdev->rphy.dev.release = sas_rphy_release;
- sprintf(rdev->rphy.dev.bus_id, "rphy-%d:%d-%d",
- shost->host_no, parent->port_identifier, parent->number);
- rdev->rphy.identify.device_type = SAS_END_DEVICE;
- /* FIXME: mark the rphy as being contained in a larger structure */
- rdev->rphy.contained = 1;
+ rdev->rphy.dev.release = sas_expander_release;
+ mutex_lock(&sas_host->lock);
+ rdev->rphy.scsi_target_id = sas_host->next_expander_id++;
+ mutex_unlock(&sas_host->lock);
+ sprintf(rdev->rphy.dev.bus_id, "expander-%d:%d",
+ shost->host_no, rdev->rphy.scsi_target_id);
+ rdev->rphy.identify.device_type = type;
transport_setup_device(&rdev->rphy.dev);
return &rdev->rphy;
}
-EXPORT_SYMBOL(sas_end_device_alloc);
-
+EXPORT_SYMBOL(sas_expander_alloc);
/**
* sas_rphy_add -- add a SAS remote PHY to the device hierachy
(identify->target_port_protocols &
(SAS_PROTOCOL_SSP|SAS_PROTOCOL_STP|SAS_PROTOCOL_SATA)))
rphy->scsi_target_id = sas_host->next_target_id++;
- else
- rphy->scsi_target_id = -1;
mutex_unlock(&sas_host->lock);
- if (rphy->scsi_target_id != -1) {
+ if (identify->device_type == SAS_END_DEVICE &&
+ rphy->scsi_target_id != -1) {
scsi_scan_target(&rphy->dev, parent->port_identifier,
rphy->scsi_target_id, ~0, 0);
}
put_device(rphy->dev.parent);
put_device(rphy->dev.parent);
put_device(rphy->dev.parent);
- kfree(rphy);
+ if (rphy->identify.device_type == SAS_END_DEVICE) {
+ struct sas_end_device *edev = rphy_to_end_device(rphy);
+
+ kfree(edev);
+ } else {
+ /* must be expander */
+ struct sas_expander_device *edev =
+ rphy_to_expander_device(rphy);
+
+ kfree(edev);
+ }
}
EXPORT_SYMBOL(sas_rphy_free);
*/
int scsi_is_sas_rphy(const struct device *dev)
{
- return dev->release == sas_rphy_release;
+ return dev->release == sas_end_device_release ||
+ dev->release == sas_expander_release;
}
EXPORT_SYMBOL(scsi_is_sas_rphy);
#define SETUP_END_DEV_ATTRIBUTE(field) \
SETUP_TEMPLATE(end_dev_attrs, field, S_IRUGO, 1)
+#define SETUP_EXPANDER_ATTRIBUTE(field) \
+ SETUP_TEMPLATE(expander_attrs, expander_##field, S_IRUGO, 1)
+
/**
* sas_attach_transport -- instantiate SAS transport template
* @ft: SAS transport class function template
i->end_dev_attr_cont.ac.match = sas_end_dev_match;
transport_container_register(&i->end_dev_attr_cont);
+ i->expander_attr_cont.ac.class = &sas_expander_class.class;
+ i->expander_attr_cont.ac.attrs = &i->expander_attrs[0];
+ i->expander_attr_cont.ac.match = sas_expander_match;
+ transport_container_register(&i->expander_attr_cont);
+
i->f = ft;
count = 0;
SETUP_END_DEV_ATTRIBUTE(end_dev_initiator_response_timeout);
i->end_dev_attrs[count] = NULL;
+ count = 0;
+ SETUP_EXPANDER_ATTRIBUTE(vendor_id);
+ SETUP_EXPANDER_ATTRIBUTE(product_id);
+ SETUP_EXPANDER_ATTRIBUTE(product_rev);
+ SETUP_EXPANDER_ATTRIBUTE(component_vendor_id);
+ SETUP_EXPANDER_ATTRIBUTE(component_id);
+ SETUP_EXPANDER_ATTRIBUTE(component_revision_id);
+ SETUP_EXPANDER_ATTRIBUTE(level);
+ i->expander_attrs[count] = NULL;
+
return &i->t;
}
EXPORT_SYMBOL(sas_attach_transport);
transport_container_unregister(&i->phy_attr_cont);
transport_container_unregister(&i->rphy_attr_cont);
transport_container_unregister(&i->end_dev_attr_cont);
+ transport_container_unregister(&i->expander_attr_cont);
kfree(i);
}
error = transport_class_register(&sas_end_dev_class);
if (error)
goto out_unregister_rphy;
+ error = transport_class_register(&sas_expander_class);
+ if (error)
+ goto out_unregister_end_dev;
return 0;
+ out_unregister_end_dev:
+ transport_class_unregister(&sas_end_dev_class);
out_unregister_rphy:
transport_class_unregister(&sas_rphy_class);
out_unregister_phy:
transport_class_unregister(&sas_phy_class);
transport_class_unregister(&sas_rphy_class);
transport_class_unregister(&sas_end_dev_class);
+ transport_class_unregister(&sas_expander_class);
}
MODULE_AUTHOR("Christoph Hellwig");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff