*
* The SAS transport class contains common code to deal with SAS HBAs,
* an aproximated representation of SAS topologies in the driver model,
- * and various sysfs attributes to expose these topologies and managment
+ * and various sysfs attributes to expose these topologies and management
* interfaces to userspace.
*
* In addition to the basic SCSI core objects this transport class
#include <linux/init.h>
#include <linux/module.h>
+#include <linux/jiffies.h>
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/string.h>
+#include <linux/blkdev.h>
+#include <linux/bsg.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
struct sas_host_attrs {
struct list_head rphy_list;
struct mutex lock;
+ struct request_queue *q;
u32 next_target_id;
u32 next_expander_id;
+ int next_port_id;
};
#define to_sas_host_attrs(host) ((struct sas_host_attrs *)(host)->shost_data)
/*
* Hack to allow attributes of the same name in different objects.
*/
-#define SAS_CLASS_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \
- struct class_device_attribute class_device_attr_##_prefix##_##_name = \
+#define SAS_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \
+ struct device_attribute dev_attr_##_prefix##_##_name = \
__ATTR(_name,_mode,_show,_store)
ssize_t len = 0; \
int i; \
\
- for (i = 0; i < sizeof(table)/sizeof(table[0]); i++) { \
+ for (i = 0; i < ARRAY_SIZE(table); i++) { \
if (table[i].value & table_key) { \
len += sprintf(buf + len, "%s%s", \
prefix, table[i].name); \
return len; \
}
+#define sas_bitfield_name_set(title, table) \
+static ssize_t \
+set_sas_##title##_names(u32 *table_key, const char *buf) \
+{ \
+ ssize_t len = 0; \
+ int i; \
+ \
+ for (i = 0; i < ARRAY_SIZE(table); i++) { \
+ len = strlen(table[i].name); \
+ if (strncmp(buf, table[i].name, len) == 0 && \
+ (buf[len] == '\n' || buf[len] == '\0')) { \
+ *table_key = table[i].value; \
+ return 0; \
+ } \
+ } \
+ return -EINVAL; \
+}
+
#define sas_bitfield_name_search(title, table) \
static ssize_t \
get_sas_##title##_names(u32 table_key, char *buf) \
ssize_t len = 0; \
int i; \
\
- for (i = 0; i < sizeof(table)/sizeof(table[0]); i++) { \
+ for (i = 0; i < ARRAY_SIZE(table); i++) { \
if (table[i].value == table_key) { \
len += sprintf(buf + len, "%s", \
table[i].name); \
{ SAS_LINK_RATE_6_0_GBPS, "6.0 Gbit" },
};
sas_bitfield_name_search(linkspeed, sas_linkspeed_names)
+sas_bitfield_name_set(linkspeed, sas_linkspeed_names)
+
+static void sas_smp_request(struct request_queue *q, struct Scsi_Host *shost,
+ struct sas_rphy *rphy)
+{
+ struct request *req;
+ int ret;
+ int (*handler)(struct Scsi_Host *, struct sas_rphy *, struct request *);
+
+ while (!blk_queue_plugged(q)) {
+ req = blk_fetch_request(q);
+ if (!req)
+ break;
+
+ spin_unlock_irq(q->queue_lock);
+
+ handler = to_sas_internal(shost->transportt)->f->smp_handler;
+ ret = handler(shost, rphy, req);
+ req->errors = ret;
+
+ blk_end_request_all(req, ret);
+
+ spin_lock_irq(q->queue_lock);
+ }
+}
+
+static void sas_host_smp_request(struct request_queue *q)
+{
+ sas_smp_request(q, (struct Scsi_Host *)q->queuedata, NULL);
+}
+
+static void sas_non_host_smp_request(struct request_queue *q)
+{
+ struct sas_rphy *rphy = q->queuedata;
+ sas_smp_request(q, rphy_to_shost(rphy), rphy);
+}
+
+static void sas_host_release(struct device *dev)
+{
+ struct Scsi_Host *shost = dev_to_shost(dev);
+ struct sas_host_attrs *sas_host = to_sas_host_attrs(shost);
+ struct request_queue *q = sas_host->q;
+
+ if (q)
+ blk_cleanup_queue(q);
+}
+
+static int sas_bsg_initialize(struct Scsi_Host *shost, struct sas_rphy *rphy)
+{
+ struct request_queue *q;
+ int error;
+ struct device *dev;
+ char namebuf[20];
+ const char *name;
+ void (*release)(struct device *);
+
+ if (!to_sas_internal(shost->transportt)->f->smp_handler) {
+ printk("%s can't handle SMP requests\n", shost->hostt->name);
+ return 0;
+ }
+
+ if (rphy) {
+ q = blk_init_queue(sas_non_host_smp_request, NULL);
+ dev = &rphy->dev;
+ name = dev_name(dev);
+ release = NULL;
+ } else {
+ q = blk_init_queue(sas_host_smp_request, NULL);
+ dev = &shost->shost_gendev;
+ snprintf(namebuf, sizeof(namebuf),
+ "sas_host%d", shost->host_no);
+ name = namebuf;
+ release = sas_host_release;
+ }
+ if (!q)
+ return -ENOMEM;
+
+ error = bsg_register_queue(q, dev, name, release);
+ if (error) {
+ blk_cleanup_queue(q);
+ return -ENOMEM;
+ }
+
+ if (rphy)
+ rphy->q = q;
+ else
+ to_sas_host_attrs(shost)->q = q;
+ if (rphy)
+ q->queuedata = rphy;
+ else
+ q->queuedata = shost;
+
+ queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q);
+ return 0;
+}
+
+static void sas_bsg_remove(struct Scsi_Host *shost, struct sas_rphy *rphy)
+{
+ struct request_queue *q;
+
+ if (rphy)
+ q = rphy->q;
+ else
+ q = to_sas_host_attrs(shost)->q;
+
+ if (!q)
+ return;
+
+ bsg_unregister_queue(q);
+}
/*
* SAS host attributes
*/
static int sas_host_setup(struct transport_container *tc, struct device *dev,
- struct class_device *cdev)
+ struct device *cdev)
{
struct Scsi_Host *shost = dev_to_shost(dev);
struct sas_host_attrs *sas_host = to_sas_host_attrs(shost);
mutex_init(&sas_host->lock);
sas_host->next_target_id = 0;
sas_host->next_expander_id = 0;
+ sas_host->next_port_id = 0;
+
+ if (sas_bsg_initialize(shost, NULL))
+ dev_printk(KERN_ERR, dev, "fail to a bsg device %d\n",
+ shost->host_no);
+
+ return 0;
+}
+
+static int sas_host_remove(struct transport_container *tc, struct device *dev,
+ struct device *cdev)
+{
+ struct Scsi_Host *shost = dev_to_shost(dev);
+
+ sas_bsg_remove(shost, NULL);
+
return 0;
}
static DECLARE_TRANSPORT_CLASS(sas_host_class,
- "sas_host", sas_host_setup, NULL, NULL);
+ "sas_host", sas_host_setup, sas_host_remove, NULL);
static int sas_host_match(struct attribute_container *cont,
struct device *dev)
static int do_sas_phy_delete(struct device *dev, void *data)
{
- if (scsi_is_sas_phy(dev))
+ int pass = (int)(unsigned long)data;
+
+ if (pass == 0 && scsi_is_sas_port(dev))
+ sas_port_delete(dev_to_sas_port(dev));
+ else if (pass == 1 && scsi_is_sas_phy(dev))
sas_phy_delete(dev_to_phy(dev));
return 0;
}
/**
- * sas_remove_host -- tear down a Scsi_Host's SAS data structures
+ * sas_remove_children - tear down a devices SAS data structures
+ * @dev: device belonging to the sas object
+ *
+ * Removes all SAS PHYs and remote PHYs for a given object
+ */
+void sas_remove_children(struct device *dev)
+{
+ device_for_each_child(dev, (void *)0, do_sas_phy_delete);
+ device_for_each_child(dev, (void *)1, do_sas_phy_delete);
+}
+EXPORT_SYMBOL(sas_remove_children);
+
+/**
+ * sas_remove_host - tear down a Scsi_Host's SAS data structures
* @shost: Scsi Host that is torn down
*
* Removes all SAS PHYs and remote PHYs for a given Scsi_Host.
*/
void sas_remove_host(struct Scsi_Host *shost)
{
- device_for_each_child(&shost->shost_gendev, NULL, do_sas_phy_delete);
+ sas_remove_children(&shost->shost_gendev);
}
EXPORT_SYMBOL(sas_remove_host);
/*
- * SAS Port attributes
+ * SAS Phy attributes
*/
#define sas_phy_show_simple(field, name, format_string, cast) \
static ssize_t \
-show_sas_phy_##name(struct class_device *cdev, char *buf) \
+show_sas_phy_##name(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
{ \
- struct sas_phy *phy = transport_class_to_phy(cdev); \
+ struct sas_phy *phy = transport_class_to_phy(dev); \
\
return snprintf(buf, 20, format_string, cast phy->field); \
}
#define sas_phy_simple_attr(field, name, format_string, type) \
sas_phy_show_simple(field, name, format_string, (type)) \
-static CLASS_DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL)
+static DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL)
#define sas_phy_show_protocol(field, name) \
static ssize_t \
-show_sas_phy_##name(struct class_device *cdev, char *buf) \
+show_sas_phy_##name(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
{ \
- struct sas_phy *phy = transport_class_to_phy(cdev); \
+ struct sas_phy *phy = transport_class_to_phy(dev); \
\
if (!phy->field) \
return snprintf(buf, 20, "none\n"); \
#define sas_phy_protocol_attr(field, name) \
sas_phy_show_protocol(field, name) \
-static CLASS_DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL)
+static DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL)
#define sas_phy_show_linkspeed(field) \
static ssize_t \
-show_sas_phy_##field(struct class_device *cdev, char *buf) \
+show_sas_phy_##field(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
{ \
- struct sas_phy *phy = transport_class_to_phy(cdev); \
+ struct sas_phy *phy = transport_class_to_phy(dev); \
\
return get_sas_linkspeed_names(phy->field, buf); \
}
+/* Fudge to tell if we're minimum or maximum */
+#define sas_phy_store_linkspeed(field) \
+static ssize_t \
+store_sas_phy_##field(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t count) \
+{ \
+ struct sas_phy *phy = transport_class_to_phy(dev); \
+ struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); \
+ struct sas_internal *i = to_sas_internal(shost->transportt); \
+ u32 value; \
+ struct sas_phy_linkrates rates = {0}; \
+ int error; \
+ \
+ error = set_sas_linkspeed_names(&value, buf); \
+ if (error) \
+ return error; \
+ rates.field = value; \
+ error = i->f->set_phy_speed(phy, &rates); \
+ \
+ return error ? error : count; \
+}
+
+#define sas_phy_linkspeed_rw_attr(field) \
+ sas_phy_show_linkspeed(field) \
+ sas_phy_store_linkspeed(field) \
+static DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, \
+ store_sas_phy_##field)
+
#define sas_phy_linkspeed_attr(field) \
sas_phy_show_linkspeed(field) \
-static CLASS_DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL)
+static DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL)
+
#define sas_phy_show_linkerror(field) \
static ssize_t \
-show_sas_phy_##field(struct class_device *cdev, char *buf) \
+show_sas_phy_##field(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
{ \
- struct sas_phy *phy = transport_class_to_phy(cdev); \
+ struct sas_phy *phy = transport_class_to_phy(dev); \
struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); \
struct sas_internal *i = to_sas_internal(shost->transportt); \
int error; \
\
- if (!phy->local_attached) \
- return -EINVAL; \
- \
error = i->f->get_linkerrors ? i->f->get_linkerrors(phy) : 0; \
if (error) \
return error; \
#define sas_phy_linkerror_attr(field) \
sas_phy_show_linkerror(field) \
-static CLASS_DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL)
+static DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL)
static ssize_t
-show_sas_device_type(struct class_device *cdev, char *buf)
+show_sas_device_type(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct sas_phy *phy = transport_class_to_phy(cdev);
+ struct sas_phy *phy = transport_class_to_phy(dev);
if (!phy->identify.device_type)
return snprintf(buf, 20, "none\n");
return get_sas_device_type_names(phy->identify.device_type, buf);
}
-static CLASS_DEVICE_ATTR(device_type, S_IRUGO, show_sas_device_type, NULL);
+static DEVICE_ATTR(device_type, S_IRUGO, show_sas_device_type, NULL);
-static ssize_t do_sas_phy_reset(struct class_device *cdev,
- size_t count, int hard_reset)
+static ssize_t do_sas_phy_enable(struct device *dev,
+ size_t count, int enable)
{
- struct sas_phy *phy = transport_class_to_phy(cdev);
+ struct sas_phy *phy = transport_class_to_phy(dev);
struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
struct sas_internal *i = to_sas_internal(shost->transportt);
int error;
- if (!phy->local_attached)
+ error = i->f->phy_enable(phy, enable);
+ if (error)
+ return error;
+ phy->enabled = enable;
+ return count;
+};
+
+static ssize_t
+store_sas_phy_enable(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ if (count < 1)
+ return -EINVAL;
+
+ switch (buf[0]) {
+ case '0':
+ do_sas_phy_enable(dev, count, 0);
+ break;
+ case '1':
+ do_sas_phy_enable(dev, count, 1);
+ break;
+ default:
return -EINVAL;
+ }
+
+ return count;
+}
+
+static ssize_t
+show_sas_phy_enable(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct sas_phy *phy = transport_class_to_phy(dev);
+
+ return snprintf(buf, 20, "%d", phy->enabled);
+}
+
+static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, show_sas_phy_enable,
+ store_sas_phy_enable);
+
+static ssize_t
+do_sas_phy_reset(struct device *dev, size_t count, int hard_reset)
+{
+ struct sas_phy *phy = transport_class_to_phy(dev);
+ struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
+ struct sas_internal *i = to_sas_internal(shost->transportt);
+ int error;
error = i->f->phy_reset(phy, hard_reset);
if (error)
return count;
};
-static ssize_t store_sas_link_reset(struct class_device *cdev,
- const char *buf, size_t count)
+static ssize_t
+store_sas_link_reset(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
- return do_sas_phy_reset(cdev, count, 0);
+ return do_sas_phy_reset(dev, count, 0);
}
-static CLASS_DEVICE_ATTR(link_reset, S_IWUSR, NULL, store_sas_link_reset);
+static DEVICE_ATTR(link_reset, S_IWUSR, NULL, store_sas_link_reset);
-static ssize_t store_sas_hard_reset(struct class_device *cdev,
- const char *buf, size_t count)
+static ssize_t
+store_sas_hard_reset(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
- return do_sas_phy_reset(cdev, count, 1);
+ return do_sas_phy_reset(dev, count, 1);
}
-static CLASS_DEVICE_ATTR(hard_reset, S_IWUSR, NULL, store_sas_hard_reset);
+static DEVICE_ATTR(hard_reset, S_IWUSR, NULL, store_sas_hard_reset);
sas_phy_protocol_attr(identify.initiator_port_protocols,
initiator_port_protocols);
sas_phy_simple_attr(identify.sas_address, sas_address, "0x%016llx\n",
unsigned long long);
sas_phy_simple_attr(identify.phy_identifier, phy_identifier, "%d\n", u8);
-sas_phy_simple_attr(port_identifier, port_identifier, "%d\n", u8);
+//sas_phy_simple_attr(port_identifier, port_identifier, "%d\n", int);
sas_phy_linkspeed_attr(negotiated_linkrate);
sas_phy_linkspeed_attr(minimum_linkrate_hw);
-sas_phy_linkspeed_attr(minimum_linkrate);
+sas_phy_linkspeed_rw_attr(minimum_linkrate);
sas_phy_linkspeed_attr(maximum_linkrate_hw);
-sas_phy_linkspeed_attr(maximum_linkrate);
+sas_phy_linkspeed_rw_attr(maximum_linkrate);
sas_phy_linkerror_attr(invalid_dword_count);
sas_phy_linkerror_attr(running_disparity_error_count);
sas_phy_linkerror_attr(loss_of_dword_sync_count);
}
/**
- * sas_phy_alloc -- allocates and initialize a SAS PHY structure
+ * sas_phy_alloc - allocates and initialize a SAS PHY structure
* @parent: Parent device
* @number: Phy index
*
return NULL;
phy->number = number;
+ phy->enabled = 1;
device_initialize(&phy->dev);
phy->dev.parent = get_device(parent);
phy->dev.release = sas_phy_release;
+ INIT_LIST_HEAD(&phy->port_siblings);
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,
+ dev_set_name(&phy->dev, "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);
+ dev_set_name(&phy->dev, "phy-%d:%d", shost->host_no, number);
transport_setup_device(&phy->dev);
EXPORT_SYMBOL(sas_phy_alloc);
/**
- * sas_phy_add -- add a SAS PHY to the device hierachy
+ * sas_phy_add - add a SAS PHY to the device hierarchy
* @phy: The PHY to be added
*
* Publishes a SAS PHY to the rest of the system.
EXPORT_SYMBOL(sas_phy_add);
/**
- * sas_phy_free -- free a SAS PHY
+ * sas_phy_free - free a SAS PHY
* @phy: SAS PHY to free
*
* Frees the specified SAS PHY.
*
* Note:
* This function must only be called on a PHY that has not
- * sucessfully been added using sas_phy_add().
+ * successfully been added using sas_phy_add().
*/
void sas_phy_free(struct sas_phy *phy)
{
EXPORT_SYMBOL(sas_phy_free);
/**
- * sas_phy_delete -- remove SAS PHY
+ * sas_phy_delete - remove SAS PHY
* @phy: SAS PHY to remove
*
* Removes the specified SAS PHY. If the SAS PHY has an
{
struct device *dev = &phy->dev;
- if (phy->rphy)
- sas_rphy_delete(phy->rphy);
+ /* this happens if the phy is still part of a port when deleted */
+ BUG_ON(!list_empty(&phy->port_siblings));
transport_remove_device(dev);
device_del(dev);
EXPORT_SYMBOL(sas_phy_delete);
/**
- * scsi_is_sas_phy -- check if a struct device represents a SAS PHY
+ * scsi_is_sas_phy - check if a struct device represents a SAS PHY
* @dev: device to check
*
* Returns:
EXPORT_SYMBOL(scsi_is_sas_phy);
/*
+ * SAS Port attributes
+ */
+#define sas_port_show_simple(field, name, format_string, cast) \
+static ssize_t \
+show_sas_port_##name(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ struct sas_port *port = transport_class_to_sas_port(dev); \
+ \
+ return snprintf(buf, 20, format_string, cast port->field); \
+}
+
+#define sas_port_simple_attr(field, name, format_string, type) \
+ sas_port_show_simple(field, name, format_string, (type)) \
+static DEVICE_ATTR(name, S_IRUGO, show_sas_port_##name, NULL)
+
+sas_port_simple_attr(num_phys, num_phys, "%d\n", int);
+
+static DECLARE_TRANSPORT_CLASS(sas_port_class,
+ "sas_port", NULL, NULL, NULL);
+
+static int sas_port_match(struct attribute_container *cont, struct device *dev)
+{
+ struct Scsi_Host *shost;
+ struct sas_internal *i;
+
+ if (!scsi_is_sas_port(dev))
+ return 0;
+ shost = dev_to_shost(dev->parent);
+
+ 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->port_attr_cont.ac == cont;
+}
+
+
+static void sas_port_release(struct device *dev)
+{
+ struct sas_port *port = dev_to_sas_port(dev);
+
+ BUG_ON(!list_empty(&port->phy_list));
+
+ put_device(dev->parent);
+ kfree(port);
+}
+
+static void sas_port_create_link(struct sas_port *port,
+ struct sas_phy *phy)
+{
+ int res;
+
+ res = sysfs_create_link(&port->dev.kobj, &phy->dev.kobj,
+ dev_name(&phy->dev));
+ if (res)
+ goto err;
+ res = sysfs_create_link(&phy->dev.kobj, &port->dev.kobj, "port");
+ if (res)
+ goto err;
+ return;
+err:
+ printk(KERN_ERR "%s: Cannot create port links, err=%d\n",
+ __func__, res);
+}
+
+static void sas_port_delete_link(struct sas_port *port,
+ struct sas_phy *phy)
+{
+ sysfs_remove_link(&port->dev.kobj, dev_name(&phy->dev));
+ sysfs_remove_link(&phy->dev.kobj, "port");
+}
+
+/** sas_port_alloc - allocate and initialize a SAS port structure
+ *
+ * @parent: parent device
+ * @port_id: port number
+ *
+ * Allocates a SAS port structure. It will be added to the device tree
+ * below the device specified by @parent which must be either a Scsi_Host
+ * or a sas_expander_device.
+ *
+ * Returns %NULL on error
+ */
+struct sas_port *sas_port_alloc(struct device *parent, int port_id)
+{
+ struct Scsi_Host *shost = dev_to_shost(parent);
+ struct sas_port *port;
+
+ port = kzalloc(sizeof(*port), GFP_KERNEL);
+ if (!port)
+ return NULL;
+
+ port->port_identifier = port_id;
+
+ device_initialize(&port->dev);
+
+ port->dev.parent = get_device(parent);
+ port->dev.release = sas_port_release;
+
+ mutex_init(&port->phy_list_mutex);
+ INIT_LIST_HEAD(&port->phy_list);
+
+ if (scsi_is_sas_expander_device(parent)) {
+ struct sas_rphy *rphy = dev_to_rphy(parent);
+ dev_set_name(&port->dev, "port-%d:%d:%d", shost->host_no,
+ rphy->scsi_target_id, port->port_identifier);
+ } else
+ dev_set_name(&port->dev, "port-%d:%d", shost->host_no,
+ port->port_identifier);
+
+ transport_setup_device(&port->dev);
+
+ return port;
+}
+EXPORT_SYMBOL(sas_port_alloc);
+
+/** sas_port_alloc_num - allocate and initialize a SAS port structure
+ *
+ * @parent: parent device
+ *
+ * Allocates a SAS port structure and a number to go with it. This
+ * interface is really for adapters where the port number has no
+ * meansing, so the sas class should manage them. It will be added to
+ * the device tree below the device specified by @parent which must be
+ * either a Scsi_Host or a sas_expander_device.
+ *
+ * Returns %NULL on error
+ */
+struct sas_port *sas_port_alloc_num(struct device *parent)
+{
+ int index;
+ struct Scsi_Host *shost = dev_to_shost(parent);
+ struct sas_host_attrs *sas_host = to_sas_host_attrs(shost);
+
+ /* FIXME: use idr for this eventually */
+ mutex_lock(&sas_host->lock);
+ if (scsi_is_sas_expander_device(parent)) {
+ struct sas_rphy *rphy = dev_to_rphy(parent);
+ struct sas_expander_device *exp = rphy_to_expander_device(rphy);
+
+ index = exp->next_port_id++;
+ } else
+ index = sas_host->next_port_id++;
+ mutex_unlock(&sas_host->lock);
+ return sas_port_alloc(parent, index);
+}
+EXPORT_SYMBOL(sas_port_alloc_num);
+
+/**
+ * sas_port_add - add a SAS port to the device hierarchy
+ * @port: port to be added
+ *
+ * publishes a port to the rest of the system
+ */
+int sas_port_add(struct sas_port *port)
+{
+ int error;
+
+ /* No phys should be added until this is made visible */
+ BUG_ON(!list_empty(&port->phy_list));
+
+ error = device_add(&port->dev);
+
+ if (error)
+ return error;
+
+ transport_add_device(&port->dev);
+ transport_configure_device(&port->dev);
+
+ return 0;
+}
+EXPORT_SYMBOL(sas_port_add);
+
+/**
+ * sas_port_free - free a SAS PORT
+ * @port: SAS PORT to free
+ *
+ * Frees the specified SAS PORT.
+ *
+ * Note:
+ * This function must only be called on a PORT that has not
+ * successfully been added using sas_port_add().
+ */
+void sas_port_free(struct sas_port *port)
+{
+ transport_destroy_device(&port->dev);
+ put_device(&port->dev);
+}
+EXPORT_SYMBOL(sas_port_free);
+
+/**
+ * sas_port_delete - remove SAS PORT
+ * @port: SAS PORT to remove
+ *
+ * Removes the specified SAS PORT. If the SAS PORT has an
+ * associated phys, unlink them from the port as well.
+ */
+void sas_port_delete(struct sas_port *port)
+{
+ struct device *dev = &port->dev;
+ struct sas_phy *phy, *tmp_phy;
+
+ if (port->rphy) {
+ sas_rphy_delete(port->rphy);
+ port->rphy = NULL;
+ }
+
+ mutex_lock(&port->phy_list_mutex);
+ list_for_each_entry_safe(phy, tmp_phy, &port->phy_list,
+ port_siblings) {
+ sas_port_delete_link(port, phy);
+ list_del_init(&phy->port_siblings);
+ }
+ mutex_unlock(&port->phy_list_mutex);
+
+ if (port->is_backlink) {
+ struct device *parent = port->dev.parent;
+
+ sysfs_remove_link(&port->dev.kobj, dev_name(parent));
+ port->is_backlink = 0;
+ }
+
+ transport_remove_device(dev);
+ device_del(dev);
+ transport_destroy_device(dev);
+ put_device(dev);
+}
+EXPORT_SYMBOL(sas_port_delete);
+
+/**
+ * scsi_is_sas_port - check if a struct device represents a SAS port
+ * @dev: device to check
+ *
+ * Returns:
+ * %1 if the device represents a SAS Port, %0 else
+ */
+int scsi_is_sas_port(const struct device *dev)
+{
+ return dev->release == sas_port_release;
+}
+EXPORT_SYMBOL(scsi_is_sas_port);
+
+/**
+ * sas_port_add_phy - add another phy to a port to form a wide port
+ * @port: port to add the phy to
+ * @phy: phy to add
+ *
+ * When a port is initially created, it is empty (has no phys). All
+ * ports must have at least one phy to operated, and all wide ports
+ * must have at least two. The current code makes no difference
+ * between ports and wide ports, but the only object that can be
+ * connected to a remote device is a port, so ports must be formed on
+ * all devices with phys if they're connected to anything.
+ */
+void sas_port_add_phy(struct sas_port *port, struct sas_phy *phy)
+{
+ mutex_lock(&port->phy_list_mutex);
+ if (unlikely(!list_empty(&phy->port_siblings))) {
+ /* make sure we're already on this port */
+ struct sas_phy *tmp;
+
+ list_for_each_entry(tmp, &port->phy_list, port_siblings)
+ if (tmp == phy)
+ break;
+ /* If this trips, you added a phy that was already
+ * part of a different port */
+ if (unlikely(tmp != phy)) {
+ dev_printk(KERN_ERR, &port->dev, "trying to add phy %s fails: it's already part of another port\n",
+ dev_name(&phy->dev));
+ BUG();
+ }
+ } else {
+ sas_port_create_link(port, phy);
+ list_add_tail(&phy->port_siblings, &port->phy_list);
+ port->num_phys++;
+ }
+ mutex_unlock(&port->phy_list_mutex);
+}
+EXPORT_SYMBOL(sas_port_add_phy);
+
+/**
+ * sas_port_delete_phy - remove a phy from a port or wide port
+ * @port: port to remove the phy from
+ * @phy: phy to remove
+ *
+ * This operation is used for tearing down ports again. It must be
+ * done to every port or wide port before calling sas_port_delete.
+ */
+void sas_port_delete_phy(struct sas_port *port, struct sas_phy *phy)
+{
+ mutex_lock(&port->phy_list_mutex);
+ sas_port_delete_link(port, phy);
+ list_del_init(&phy->port_siblings);
+ port->num_phys--;
+ mutex_unlock(&port->phy_list_mutex);
+}
+EXPORT_SYMBOL(sas_port_delete_phy);
+
+void sas_port_mark_backlink(struct sas_port *port)
+{
+ int res;
+ struct device *parent = port->dev.parent->parent->parent;
+
+ if (port->is_backlink)
+ return;
+ port->is_backlink = 1;
+ res = sysfs_create_link(&port->dev.kobj, &parent->kobj,
+ dev_name(parent));
+ if (res)
+ goto err;
+ return;
+err:
+ printk(KERN_ERR "%s: Cannot create port backlink, err=%d\n",
+ __func__, res);
+
+}
+EXPORT_SYMBOL(sas_port_mark_backlink);
+
+/*
* SAS remote PHY attributes.
*/
#define sas_rphy_show_simple(field, name, format_string, cast) \
static ssize_t \
-show_sas_rphy_##name(struct class_device *cdev, char *buf) \
+show_sas_rphy_##name(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
{ \
- struct sas_rphy *rphy = transport_class_to_rphy(cdev); \
+ struct sas_rphy *rphy = transport_class_to_rphy(dev); \
\
return snprintf(buf, 20, format_string, cast rphy->field); \
}
#define sas_rphy_simple_attr(field, name, format_string, type) \
sas_rphy_show_simple(field, name, format_string, (type)) \
-static SAS_CLASS_DEVICE_ATTR(rphy, name, S_IRUGO, \
+static SAS_DEVICE_ATTR(rphy, name, S_IRUGO, \
show_sas_rphy_##name, NULL)
#define sas_rphy_show_protocol(field, name) \
static ssize_t \
-show_sas_rphy_##name(struct class_device *cdev, char *buf) \
+show_sas_rphy_##name(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
{ \
- struct sas_rphy *rphy = transport_class_to_rphy(cdev); \
+ struct sas_rphy *rphy = transport_class_to_rphy(dev); \
\
if (!rphy->field) \
return snprintf(buf, 20, "none\n"); \
#define sas_rphy_protocol_attr(field, name) \
sas_rphy_show_protocol(field, name) \
-static SAS_CLASS_DEVICE_ATTR(rphy, name, S_IRUGO, \
+static SAS_DEVICE_ATTR(rphy, name, S_IRUGO, \
show_sas_rphy_##name, NULL)
static ssize_t
-show_sas_rphy_device_type(struct class_device *cdev, char *buf)
+show_sas_rphy_device_type(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct sas_rphy *rphy = transport_class_to_rphy(cdev);
+ struct sas_rphy *rphy = transport_class_to_rphy(dev);
if (!rphy->identify.device_type)
return snprintf(buf, 20, "none\n");
rphy->identify.device_type, buf);
}
-static SAS_CLASS_DEVICE_ATTR(rphy, device_type, S_IRUGO,
+static SAS_DEVICE_ATTR(rphy, device_type, S_IRUGO,
show_sas_rphy_device_type, NULL);
static ssize_t
-show_sas_rphy_enclosure_identifier(struct class_device *cdev, char *buf)
+show_sas_rphy_enclosure_identifier(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct sas_rphy *rphy = transport_class_to_rphy(cdev);
+ struct sas_rphy *rphy = transport_class_to_rphy(dev);
struct sas_phy *phy = dev_to_phy(rphy->dev.parent);
struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
struct sas_internal *i = to_sas_internal(shost->transportt);
* Only devices behind an expander are supported, because the
* enclosure identifier is a SMP feature.
*/
- if (phy->local_attached)
+ if (scsi_is_sas_phy_local(phy))
return -EINVAL;
error = i->f->get_enclosure_identifier(rphy, &identifier);
return sprintf(buf, "0x%llx\n", (unsigned long long)identifier);
}
-static SAS_CLASS_DEVICE_ATTR(rphy, enclosure_identifier, S_IRUGO,
+static SAS_DEVICE_ATTR(rphy, enclosure_identifier, S_IRUGO,
show_sas_rphy_enclosure_identifier, NULL);
static ssize_t
-show_sas_rphy_bay_identifier(struct class_device *cdev, char *buf)
+show_sas_rphy_bay_identifier(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct sas_rphy *rphy = transport_class_to_rphy(cdev);
+ struct sas_rphy *rphy = transport_class_to_rphy(dev);
struct sas_phy *phy = dev_to_phy(rphy->dev.parent);
struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
struct sas_internal *i = to_sas_internal(shost->transportt);
int val;
- if (phy->local_attached)
+ if (scsi_is_sas_phy_local(phy))
return -EINVAL;
val = i->f->get_bay_identifier(rphy);
return sprintf(buf, "%d\n", val);
}
-static SAS_CLASS_DEVICE_ATTR(rphy, bay_identifier, S_IRUGO,
+static SAS_DEVICE_ATTR(rphy, bay_identifier, S_IRUGO,
show_sas_rphy_bay_identifier, NULL);
sas_rphy_protocol_attr(identify.initiator_port_protocols,
#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) \
+show_sas_end_dev_##name(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
{ \
- struct sas_rphy *rphy = transport_class_to_rphy(cdev); \
+ struct sas_rphy *rphy = transport_class_to_rphy(dev); \
struct sas_end_device *rdev = rphy_to_end_device(rphy); \
\
return snprintf(buf, 20, format_string, cast rdev->field); \
#define sas_end_dev_simple_attr(field, name, format_string, type) \
sas_end_dev_show_simple(field, name, format_string, (type)) \
-static SAS_CLASS_DEVICE_ATTR(end_dev, name, S_IRUGO, \
+static SAS_DEVICE_ATTR(end_dev, name, S_IRUGO, \
show_sas_end_dev_##name, NULL)
sas_end_dev_simple_attr(ready_led_meaning, ready_led_meaning, "%d\n", int);
#define sas_expander_show_simple(field, name, format_string, cast) \
static ssize_t \
-show_sas_expander_##name(struct class_device *cdev, char *buf) \
+show_sas_expander_##name(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
{ \
- struct sas_rphy *rphy = transport_class_to_rphy(cdev); \
+ struct sas_rphy *rphy = transport_class_to_rphy(dev); \
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, \
+static SAS_DEVICE_ATTR(expander, name, S_IRUGO, \
show_sas_expander_##name, NULL)
sas_expander_simple_attr(vendor_id, vendor_id, "%s\n", char *);
struct sas_rphy *rphy = dev_to_rphy(dev);
struct sas_expander_device *edev = rphy_to_expander_device(rphy);
+ if (rphy->q)
+ blk_cleanup_queue(rphy->q);
+
put_device(dev->parent);
kfree(edev);
}
struct sas_rphy *rphy = dev_to_rphy(dev);
struct sas_end_device *edev = rphy_to_end_device(rphy);
+ if (rphy->q)
+ blk_cleanup_queue(rphy->q);
+
put_device(dev->parent);
kfree(edev);
}
/**
+ * sas_rphy_initialize - common rphy intialization
+ * @rphy: rphy to initialise
+ *
+ * Used by both sas_end_device_alloc() and sas_expander_alloc() to
+ * initialise the common rphy component of each.
+ */
+static void sas_rphy_initialize(struct sas_rphy *rphy)
+{
+ INIT_LIST_HEAD(&rphy->list);
+}
+
+/**
* sas_end_device_alloc - allocate an rphy for an end device
+ * @parent: which port
*
* 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_end_device_alloc(struct sas_port *parent)
{
struct Scsi_Host *shost = dev_to_shost(&parent->dev);
struct sas_end_device *rdev;
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);
+ if (scsi_is_sas_expander_device(parent->dev.parent)) {
+ struct sas_rphy *rphy = dev_to_rphy(parent->dev.parent);
+ dev_set_name(&rdev->rphy.dev, "end_device-%d:%d:%d",
+ shost->host_no, rphy->scsi_target_id,
+ parent->port_identifier);
+ } else
+ dev_set_name(&rdev->rphy.dev, "end_device-%d:%d",
+ shost->host_no, parent->port_identifier);
rdev->rphy.identify.device_type = SAS_END_DEVICE;
+ sas_rphy_initialize(&rdev->rphy);
transport_setup_device(&rdev->rphy.dev);
return &rdev->rphy;
/**
* sas_expander_alloc - allocate an rphy for an end device
+ * @parent: which port
+ * @type: SAS_EDGE_EXPANDER_DEVICE or SAS_FANOUT_EXPANDER_DEVICE
*
* Allocates an SAS remote PHY structure, connected to @parent.
*
* Returns:
* SAS PHY allocated or %NULL if the allocation failed.
*/
-struct sas_rphy *sas_expander_alloc(struct sas_phy *parent,
+struct sas_rphy *sas_expander_alloc(struct sas_port *parent,
enum sas_device_type type)
{
struct Scsi_Host *shost = dev_to_shost(&parent->dev);
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);
+ dev_set_name(&rdev->rphy.dev, "expander-%d:%d",
+ shost->host_no, rdev->rphy.scsi_target_id);
rdev->rphy.identify.device_type = type;
+ sas_rphy_initialize(&rdev->rphy);
transport_setup_device(&rdev->rphy.dev);
return &rdev->rphy;
EXPORT_SYMBOL(sas_expander_alloc);
/**
- * sas_rphy_add -- add a SAS remote PHY to the device hierachy
+ * sas_rphy_add - add a SAS remote PHY to the device hierarchy
* @rphy: The remote PHY to be added
*
* Publishes a SAS remote PHY to the rest of the system.
*/
int sas_rphy_add(struct sas_rphy *rphy)
{
- struct sas_phy *parent = dev_to_phy(rphy->dev.parent);
+ struct sas_port *parent = dev_to_sas_port(rphy->dev.parent);
struct Scsi_Host *shost = dev_to_shost(parent->dev.parent);
struct sas_host_attrs *sas_host = to_sas_host_attrs(shost);
struct sas_identify *identify = &rphy->identify;
return error;
transport_add_device(&rphy->dev);
transport_configure_device(&rphy->dev);
+ if (sas_bsg_initialize(shost, rphy))
+ printk("fail to a bsg device %s\n", dev_name(&rphy->dev));
+
mutex_lock(&sas_host->lock);
list_add_tail(&rphy->list, &sas_host->rphy_list);
(identify->target_port_protocols &
(SAS_PROTOCOL_SSP|SAS_PROTOCOL_STP|SAS_PROTOCOL_SATA)))
rphy->scsi_target_id = sas_host->next_target_id++;
+ else if (identify->device_type == SAS_END_DEVICE)
+ rphy->scsi_target_id = -1;
mutex_unlock(&sas_host->lock);
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);
+ scsi_scan_target(&rphy->dev, 0,
+ rphy->scsi_target_id, SCAN_WILD_CARD, 0);
}
return 0;
EXPORT_SYMBOL(sas_rphy_add);
/**
- * sas_rphy_free -- free a SAS remote PHY
- * @rphy SAS remote PHY to free
+ * sas_rphy_free - free a SAS remote PHY
+ * @rphy: SAS remote PHY to free
*
* Frees the specified SAS remote PHY.
*
* Note:
* This function must only be called on a remote
- * PHY that has not sucessfully been added using
- * sas_rphy_add().
+ * PHY that has not successfully been added using
+ * sas_rphy_add() (or has been sas_rphy_remove()'d)
*/
void sas_rphy_free(struct sas_rphy *rphy)
{
list_del(&rphy->list);
mutex_unlock(&sas_host->lock);
+ sas_bsg_remove(shost, rphy);
+
transport_destroy_device(dev);
put_device(dev);
EXPORT_SYMBOL(sas_rphy_free);
/**
- * sas_rphy_delete -- remove SAS remote PHY
- * @rphy: SAS remote PHY to remove
+ * sas_rphy_delete - remove and free SAS remote PHY
+ * @rphy: SAS remote PHY to remove and free
*
- * Removes the specified SAS remote PHY.
+ * Removes the specified SAS remote PHY and frees it.
*/
void
sas_rphy_delete(struct sas_rphy *rphy)
{
+ sas_rphy_remove(rphy);
+ sas_rphy_free(rphy);
+}
+EXPORT_SYMBOL(sas_rphy_delete);
+
+/**
+ * sas_rphy_remove - remove SAS remote PHY
+ * @rphy: SAS remote phy to remove
+ *
+ * Removes the specified SAS remote PHY.
+ */
+void
+sas_rphy_remove(struct sas_rphy *rphy)
+{
struct device *dev = &rphy->dev;
- struct sas_phy *parent = dev_to_phy(dev->parent);
- struct Scsi_Host *shost = dev_to_shost(parent->dev.parent);
- struct sas_host_attrs *sas_host = to_sas_host_attrs(shost);
+ struct sas_port *parent = dev_to_sas_port(dev->parent);
switch (rphy->identify.device_type) {
case SAS_END_DEVICE:
break;
case SAS_EDGE_EXPANDER_DEVICE:
case SAS_FANOUT_EXPANDER_DEVICE:
- device_for_each_child(dev, NULL, do_sas_phy_delete);
+ sas_remove_children(dev);
break;
default:
break;
transport_remove_device(dev);
device_del(dev);
- transport_destroy_device(dev);
-
- mutex_lock(&sas_host->lock);
- list_del(&rphy->list);
- mutex_unlock(&sas_host->lock);
parent->rphy = NULL;
-
- put_device(dev);
}
-EXPORT_SYMBOL(sas_rphy_delete);
+EXPORT_SYMBOL(sas_rphy_remove);
/**
- * scsi_is_sas_rphy -- check if a struct device represents a SAS remote PHY
+ * scsi_is_sas_rphy - check if a struct device represents a SAS remote PHY
* @dev: device to check
*
* Returns:
mutex_lock(&sas_host->lock);
list_for_each_entry(rphy, &sas_host->rphy_list, list) {
- struct sas_phy *parent = dev_to_phy(rphy->dev.parent);
-
- if (rphy->scsi_target_id == -1)
+ if (rphy->identify.device_type != SAS_END_DEVICE ||
+ rphy->scsi_target_id == -1)
continue;
- if ((channel == SCAN_WILD_CARD || channel == parent->port_identifier) &&
+ if ((channel == SCAN_WILD_CARD || channel == 0) &&
(id == SCAN_WILD_CARD || id == rphy->scsi_target_id)) {
- scsi_scan_target(&rphy->dev, parent->port_identifier,
+ scsi_scan_target(&rphy->dev, 0,
rphy->scsi_target_id, lun, 1);
}
}
* Setup / Teardown code
*/
-#define SETUP_TEMPLATE(attrb, field, perm, test) \
- i->private_##attrb[count] = class_device_attr_##field; \
+#define SETUP_TEMPLATE(attrb, field, perm, test) \
+ i->private_##attrb[count] = dev_attr_##field; \
i->private_##attrb[count].attr.mode = perm; \
- i->private_##attrb[count].store = NULL; \
i->attrb[count] = &i->private_##attrb[count]; \
if (test) \
count++
+#define SETUP_TEMPLATE_RW(attrb, field, perm, test, ro_test, ro_perm) \
+ i->private_##attrb[count] = dev_attr_##field; \
+ i->private_##attrb[count].attr.mode = perm; \
+ if (ro_test) { \
+ i->private_##attrb[count].attr.mode = ro_perm; \
+ i->private_##attrb[count].store = NULL; \
+ } \
+ i->attrb[count] = &i->private_##attrb[count]; \
+ if (test) \
+ count++
#define SETUP_RPORT_ATTRIBUTE(field) \
SETUP_TEMPLATE(rphy_attrs, field, S_IRUGO, 1)
#define SETUP_OPTIONAL_RPORT_ATTRIBUTE(field, func) \
SETUP_TEMPLATE(rphy_attrs, field, S_IRUGO, i->f->func)
-#define SETUP_PORT_ATTRIBUTE(field) \
+#define SETUP_PHY_ATTRIBUTE(field) \
SETUP_TEMPLATE(phy_attrs, field, S_IRUGO, 1)
-#define SETUP_OPTIONAL_PORT_ATTRIBUTE(field, func) \
+#define SETUP_PHY_ATTRIBUTE_RW(field) \
+ SETUP_TEMPLATE_RW(phy_attrs, field, S_IRUGO | S_IWUSR, 1, \
+ !i->f->set_phy_speed, S_IRUGO)
+
+#define SETUP_OPTIONAL_PHY_ATTRIBUTE_RW(field, func) \
+ SETUP_TEMPLATE_RW(phy_attrs, field, S_IRUGO | S_IWUSR, 1, \
+ !i->f->func, S_IRUGO)
+
+#define SETUP_PORT_ATTRIBUTE(field) \
+ SETUP_TEMPLATE(port_attrs, field, S_IRUGO, 1)
+
+#define SETUP_OPTIONAL_PHY_ATTRIBUTE(field, func) \
SETUP_TEMPLATE(phy_attrs, field, S_IRUGO, i->f->func)
-#define SETUP_PORT_ATTRIBUTE_WRONLY(field) \
- SETUP_TEMPLATE(phy_attrs, field, S_IWUGO, 1)
+#define SETUP_PHY_ATTRIBUTE_WRONLY(field) \
+ SETUP_TEMPLATE(phy_attrs, field, S_IWUSR, 1)
-#define SETUP_OPTIONAL_PORT_ATTRIBUTE_WRONLY(field, func) \
- SETUP_TEMPLATE(phy_attrs, field, S_IWUGO, i->f->func)
+#define SETUP_OPTIONAL_PHY_ATTRIBUTE_WRONLY(field, func) \
+ SETUP_TEMPLATE(phy_attrs, field, S_IWUSR, i->f->func)
#define SETUP_END_DEV_ATTRIBUTE(field) \
SETUP_TEMPLATE(end_dev_attrs, field, S_IRUGO, 1)
SETUP_TEMPLATE(expander_attrs, expander_##field, S_IRUGO, 1)
/**
- * sas_attach_transport -- instantiate SAS transport template
+ * sas_attach_transport - instantiate SAS transport template
* @ft: SAS transport class function template
*/
struct scsi_transport_template *
i->phy_attr_cont.ac.match = sas_phy_match;
transport_container_register(&i->phy_attr_cont);
+ i->port_attr_cont.ac.class = &sas_port_class.class;
+ i->port_attr_cont.ac.attrs = &i->port_attrs[0];
+ i->port_attr_cont.ac.match = sas_port_match;
+ transport_container_register(&i->port_attr_cont);
+
i->rphy_attr_cont.ac.class = &sas_rphy_class.class;
i->rphy_attr_cont.ac.attrs = &i->rphy_attrs[0];
i->rphy_attr_cont.ac.match = sas_rphy_match;
i->f = ft;
count = 0;
- i->host_attrs[count] = NULL;
+ SETUP_PHY_ATTRIBUTE(initiator_port_protocols);
+ SETUP_PHY_ATTRIBUTE(target_port_protocols);
+ SETUP_PHY_ATTRIBUTE(device_type);
+ SETUP_PHY_ATTRIBUTE(sas_address);
+ SETUP_PHY_ATTRIBUTE(phy_identifier);
+ //SETUP_PHY_ATTRIBUTE(port_identifier);
+ SETUP_PHY_ATTRIBUTE(negotiated_linkrate);
+ SETUP_PHY_ATTRIBUTE(minimum_linkrate_hw);
+ SETUP_PHY_ATTRIBUTE_RW(minimum_linkrate);
+ SETUP_PHY_ATTRIBUTE(maximum_linkrate_hw);
+ SETUP_PHY_ATTRIBUTE_RW(maximum_linkrate);
+
+ SETUP_PHY_ATTRIBUTE(invalid_dword_count);
+ SETUP_PHY_ATTRIBUTE(running_disparity_error_count);
+ SETUP_PHY_ATTRIBUTE(loss_of_dword_sync_count);
+ SETUP_PHY_ATTRIBUTE(phy_reset_problem_count);
+ SETUP_OPTIONAL_PHY_ATTRIBUTE_WRONLY(link_reset, phy_reset);
+ SETUP_OPTIONAL_PHY_ATTRIBUTE_WRONLY(hard_reset, phy_reset);
+ SETUP_OPTIONAL_PHY_ATTRIBUTE_RW(enable, phy_enable);
+ i->phy_attrs[count] = NULL;
count = 0;
- SETUP_PORT_ATTRIBUTE(initiator_port_protocols);
- SETUP_PORT_ATTRIBUTE(target_port_protocols);
- SETUP_PORT_ATTRIBUTE(device_type);
- SETUP_PORT_ATTRIBUTE(sas_address);
- SETUP_PORT_ATTRIBUTE(phy_identifier);
- SETUP_PORT_ATTRIBUTE(port_identifier);
- SETUP_PORT_ATTRIBUTE(negotiated_linkrate);
- SETUP_PORT_ATTRIBUTE(minimum_linkrate_hw);
- SETUP_PORT_ATTRIBUTE(minimum_linkrate);
- SETUP_PORT_ATTRIBUTE(maximum_linkrate_hw);
- SETUP_PORT_ATTRIBUTE(maximum_linkrate);
-
- SETUP_PORT_ATTRIBUTE(invalid_dword_count);
- SETUP_PORT_ATTRIBUTE(running_disparity_error_count);
- SETUP_PORT_ATTRIBUTE(loss_of_dword_sync_count);
- SETUP_PORT_ATTRIBUTE(phy_reset_problem_count);
- SETUP_OPTIONAL_PORT_ATTRIBUTE_WRONLY(link_reset, phy_reset);
- SETUP_OPTIONAL_PORT_ATTRIBUTE_WRONLY(hard_reset, phy_reset);
- i->phy_attrs[count] = NULL;
+ SETUP_PORT_ATTRIBUTE(num_phys);
+ i->port_attrs[count] = NULL;
count = 0;
SETUP_RPORT_ATTRIBUTE(rphy_initiator_port_protocols);
EXPORT_SYMBOL(sas_attach_transport);
/**
- * sas_release_transport -- release SAS transport template instance
+ * sas_release_transport - release SAS transport template instance
* @t: transport template instance
*/
void sas_release_transport(struct scsi_transport_template *t)
transport_container_unregister(&i->t.host_attrs);
transport_container_unregister(&i->phy_attr_cont);
+ transport_container_unregister(&i->port_attr_cont);
transport_container_unregister(&i->rphy_attr_cont);
transport_container_unregister(&i->end_dev_attr_cont);
transport_container_unregister(&i->expander_attr_cont);
error = transport_class_register(&sas_phy_class);
if (error)
goto out_unregister_transport;
- error = transport_class_register(&sas_rphy_class);
+ error = transport_class_register(&sas_port_class);
if (error)
goto out_unregister_phy;
+ error = transport_class_register(&sas_rphy_class);
+ if (error)
+ goto out_unregister_port;
error = transport_class_register(&sas_end_dev_class);
if (error)
goto out_unregister_rphy;
transport_class_unregister(&sas_end_dev_class);
out_unregister_rphy:
transport_class_unregister(&sas_rphy_class);
+ out_unregister_port:
+ transport_class_unregister(&sas_port_class);
out_unregister_phy:
transport_class_unregister(&sas_phy_class);
out_unregister_transport:
{
transport_class_unregister(&sas_host_class);
transport_class_unregister(&sas_phy_class);
+ transport_class_unregister(&sas_port_class);
transport_class_unregister(&sas_rphy_class);
transport_class_unregister(&sas_end_dev_class);
transport_class_unregister(&sas_expander_class);
}
MODULE_AUTHOR("Christoph Hellwig");
-MODULE_DESCRIPTION("SAS Transphy Attributes");
+MODULE_DESCRIPTION("SAS Transport Attributes");
MODULE_LICENSE("GPL");
module_init(sas_transport_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff