/*
- * Copyright (C) 2005-2006 Dell Inc.
+ * Copyright (C) 2005 Dell Inc.
* Released under GPL v2.
*
* Serial Attached SCSI (SAS) transport class.
#include <scsi/scsi_transport.h>
#include <scsi/scsi_transport_sas.h>
-#include "scsi_sas_internal.h"
+
+#define SAS_HOST_ATTRS 0
+#define SAS_PORT_ATTRS 17
+#define SAS_RPORT_ATTRS 5
+
+struct sas_internal {
+ struct scsi_transport_template t;
+ struct sas_function_template *f;
+
+ struct class_device_attribute private_host_attrs[SAS_HOST_ATTRS];
+ struct class_device_attribute private_phy_attrs[SAS_PORT_ATTRS];
+ struct class_device_attribute private_rphy_attrs[SAS_RPORT_ATTRS];
+
+ struct transport_container phy_attr_cont;
+ struct transport_container rphy_attr_cont;
+
+ /*
+ * The array of null terminated pointers to attributes
+ * needed by scsi_sysfs.c
+ */
+ struct class_device_attribute *host_attrs[SAS_HOST_ATTRS + 1];
+ struct class_device_attribute *phy_attrs[SAS_PORT_ATTRS + 1];
+ struct class_device_attribute *rphy_attrs[SAS_RPORT_ATTRS + 1];
+};
+#define to_sas_internal(tmpl) container_of(tmpl, struct sas_internal, t)
+
struct sas_host_attrs {
struct list_head rphy_list;
struct mutex lock;
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)
ssize_t len = 0; \
int i; \
\
- for (i = 0; i < ARRAY_SIZE(table); i++) { \
+ for (i = 0; i < sizeof(table)/sizeof(table[0]); i++) { \
if (table[i].value & table_key) { \
len += sprintf(buf + len, "%s%s", \
prefix, table[i].name); \
ssize_t len = 0; \
int i; \
\
- for (i = 0; i < ARRAY_SIZE(table); i++) { \
+ for (i = 0; i < sizeof(table)/sizeof(table[0]); i++) { \
if (table[i].value == table_key) { \
len += sprintf(buf + len, "%s", \
table[i].name); \
{ SAS_SATA_SPINUP_HOLD, "Spin-up hold" },
{ SAS_LINK_RATE_1_5_GBPS, "1.5 Gbit" },
{ SAS_LINK_RATE_3_0_GBPS, "3.0 Gbit" },
- { SAS_LINK_RATE_6_0_GBPS, "6.0 Gbit" },
};
sas_bitfield_name_search(linkspeed, sas_linkspeed_names)
INIT_LIST_HEAD(&sas_host->rphy_list);
mutex_init(&sas_host->lock);
sas_host->next_target_id = 0;
- sas_host->next_expander_id = 0;
- sas_host->next_port_id = 0;
return 0;
}
static int do_sas_phy_delete(struct device *dev, void *data)
{
- 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))
+ if (scsi_is_sas_phy(dev))
sas_phy_delete(dev_to_phy(dev));
return 0;
}
-/**
- * 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
*/
void sas_remove_host(struct Scsi_Host *shost)
{
- sas_remove_children(&shost->shost_gendev);
+ device_for_each_child(&shost->shost_gendev, NULL, do_sas_phy_delete);
}
EXPORT_SYMBOL(sas_remove_host);
/*
- * SAS Phy attributes
+ * SAS Port attributes
*/
#define sas_phy_show_simple(field, name, format_string, cast) \
if (!phy->local_attached) \
return -EINVAL; \
\
- error = i->f->get_linkerrors ? i->f->get_linkerrors(phy) : 0; \
+ error = i->f->get_linkerrors(phy); \
if (error) \
return error; \
return snprintf(buf, 20, "%u\n", phy->field); \
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", int);
+sas_phy_simple_attr(port_identifier, port_identifier, "%d\n", u8);
sas_phy_linkspeed_attr(negotiated_linkrate);
sas_phy_linkspeed_attr(minimum_linkrate_hw);
sas_phy_linkspeed_attr(minimum_linkrate);
struct Scsi_Host *shost = dev_to_shost(parent);
struct sas_phy *phy;
- phy = kzalloc(sizeof(*phy), GFP_KERNEL);
+ phy = kmalloc(sizeof(*phy), GFP_KERNEL);
if (!phy)
return NULL;
+ memset(phy, 0, sizeof(*phy));
+
+ get_device(parent);
phy->number = number;
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,
- rphy->scsi_target_id, number);
- } else
- sprintf(phy->dev.bus_id, "phy-%d:%d", shost->host_no, number);
+ sprintf(phy->dev.bus_id, "phy-%d:%d", shost->host_no, number);
transport_setup_device(&phy->dev);
void sas_phy_free(struct sas_phy *phy)
{
transport_destroy_device(&phy->dev);
- put_device(&phy->dev);
+ put_device(phy->dev.parent);
+ put_device(phy->dev.parent);
+ put_device(phy->dev.parent);
+ kfree(phy);
}
EXPORT_SYMBOL(sas_phy_free);
{
struct device *dev = &phy->dev;
- /* this happens if the phy is still part of a port when deleted */
- BUG_ON(!list_empty(&phy->port_siblings));
+ if (phy->rphy)
+ sas_rphy_delete(phy->rphy);
transport_remove_device(dev);
device_del(dev);
transport_destroy_device(dev);
- put_device(dev);
+ put_device(dev->parent);
}
EXPORT_SYMBOL(sas_phy_delete);
}
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 class_device *cdev, char *buf) \
-{ \
- struct sas_port *port = transport_class_to_sas_port(cdev); \
- \
- 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 CLASS_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)
-{
- sysfs_create_link(&port->dev.kobj, &phy->dev.kobj, phy->dev.bus_id);
- sysfs_create_link(&phy->dev.kobj, &port->dev.kobj, "port");
-}
-
-static void sas_port_delete_link(struct sas_port *port,
- struct sas_phy *phy)
-{
- sysfs_remove_link(&port->dev.kobj, phy->dev.bus_id);
- 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);
- sprintf(port->dev.bus_id, "port-%d:%d:%d", shost->host_no,
- rphy->scsi_target_id, port->port_identifier);
- } else
- sprintf(port->dev.bus_id, "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
- * sucessfully 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, parent->bus_id);
- 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", phy->dev.bus_id);
- 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)
-{
- struct device *parent = port->dev.parent->parent->parent;
-
- if (port->is_backlink)
- return;
- port->is_backlink = 1;
- sysfs_create_link(&port->dev.kobj, &parent->kobj,
- parent->bus_id);
-
-}
-EXPORT_SYMBOL(sas_port_mark_backlink);
-
/*
* SAS remote PHY attributes.
*/
static SAS_CLASS_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)
-{
- struct sas_rphy *rphy = transport_class_to_rphy(cdev);
- 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);
- u64 identifier;
- int error;
-
- /*
- * Only devices behind an expander are supported, because the
- * enclosure identifier is a SMP feature.
- */
- if (phy->local_attached)
- return -EINVAL;
-
- error = i->f->get_enclosure_identifier(rphy, &identifier);
- if (error)
- return error;
- return sprintf(buf, "0x%llx\n", (unsigned long long)identifier);
-}
-
-static SAS_CLASS_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)
-{
- struct sas_rphy *rphy = transport_class_to_rphy(cdev);
- 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)
- return -EINVAL;
-
- val = i->f->get_bay_identifier(rphy);
- if (val < 0)
- return val;
- return sprintf(buf, "%d\n", val);
-}
-
-static SAS_CLASS_DEVICE_ATTR(rphy, bay_identifier, S_IRUGO,
- show_sas_rphy_bay_identifier, NULL);
-
sas_rphy_protocol_attr(identify.initiator_port_protocols,
initiator_port_protocols);
sas_rphy_protocol_attr(identify.target_port_protocols, target_port_protocols);
unsigned long long);
sas_rphy_simple_attr(identify.phy_identifier, phy_identifier, "%d\n", u8);
-/* only need 8 bytes of data plus header (4 or 8) */
-#define BUF_SIZE 64
-
-int sas_read_port_mode_page(struct scsi_device *sdev)
-{
- char *buffer = kzalloc(BUF_SIZE, GFP_KERNEL), *msdata;
- struct sas_rphy *rphy = target_to_rphy(sdev->sdev_target);
- struct sas_end_device *rdev;
- struct scsi_mode_data mode_data;
- int res, error;
-
- BUG_ON(rphy->identify.device_type != SAS_END_DEVICE);
-
- rdev = rphy_to_end_device(rphy);
-
- if (!buffer)
- return -ENOMEM;
-
- res = scsi_mode_sense(sdev, 1, 0x19, buffer, BUF_SIZE, 30*HZ, 3,
- &mode_data, NULL);
-
- error = -EINVAL;
- if (!scsi_status_is_good(res))
- goto out;
-
- msdata = buffer + mode_data.header_length +
- mode_data.block_descriptor_length;
-
- if (msdata - buffer > BUF_SIZE - 8)
- goto out;
-
- error = 0;
-
- rdev->ready_led_meaning = msdata[2] & 0x10 ? 1 : 0;
- rdev->I_T_nexus_loss_timeout = (msdata[4] << 8) + msdata[5];
- rdev->initiator_response_timeout = (msdata[6] << 8) + msdata[7];
-
- out:
- kfree(buffer);
- return error;
-}
-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) \
-{ \
- struct sas_rphy *rphy = transport_class_to_rphy(cdev); \
- 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, \
- show_sas_end_dev_##name, NULL)
-
-sas_end_dev_simple_attr(ready_led_meaning, ready_led_meaning, "%d\n", int);
-sas_end_dev_simple_attr(I_T_nexus_loss_timeout, I_T_nexus_loss_timeout,
- "%d\n", int);
-sas_end_dev_simple_attr(initiator_response_timeout, initiator_response_timeout,
- "%d\n", int);
-
-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_device", NULL, NULL, NULL);
+ "sas_rphy", NULL, NULL, NULL);
static int sas_rphy_match(struct attribute_container *cont, struct device *dev)
{
return &i->rphy_attr_cont.ac == cont;
}
-static int sas_end_dev_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->end_dev_attr_cont.ac == cont &&
- 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)
+static void sas_rphy_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_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(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
- *
- * 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_port *parent)
-{
- struct Scsi_Host *shost = dev_to_shost(&parent->dev);
- struct sas_end_device *rdev;
-
- rdev = kzalloc(sizeof(*rdev), GFP_KERNEL);
- if (!rdev) {
- return NULL;
- }
-
- device_initialize(&rdev->rphy.dev);
- rdev->rphy.dev.parent = get_device(&parent->dev);
- rdev->rphy.dev.release = sas_end_device_release;
- if (scsi_is_sas_expander_device(parent->dev.parent)) {
- struct sas_rphy *rphy = dev_to_rphy(parent->dev.parent);
- sprintf(rdev->rphy.dev.bus_id, "end_device-%d:%d:%d",
- shost->host_no, rphy->scsi_target_id, parent->port_identifier);
- } else
- sprintf(rdev->rphy.dev.bus_id, "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;
+ kfree(rphy);
}
-EXPORT_SYMBOL(sas_end_device_alloc);
/**
- * sas_expander_alloc - allocate an rphy for an end device
+ * sas_rphy_alloc -- allocates and initialize a SAS remote PHY structure
+ * @parent: SAS PHY this remote PHY is conneted to
*
* 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_port *parent,
- enum sas_device_type type)
+struct sas_rphy *sas_rphy_alloc(struct sas_phy *parent)
{
struct Scsi_Host *shost = dev_to_shost(&parent->dev);
- 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);
+ struct sas_rphy *rphy;
- rdev = kzalloc(sizeof(*rdev), GFP_KERNEL);
- if (!rdev) {
+ rphy = kmalloc(sizeof(*rphy), GFP_KERNEL);
+ if (!rphy) {
+ put_device(&parent->dev);
return NULL;
}
+ memset(rphy, 0, sizeof(*rphy));
- device_initialize(&rdev->rphy.dev);
- rdev->rphy.dev.parent = get_device(&parent->dev);
- 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;
- sas_rphy_initialize(&rdev->rphy);
- transport_setup_device(&rdev->rphy.dev);
+ 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",
+ shost->host_no, parent->port_identifier, parent->number);
+ transport_setup_device(&rphy->dev);
- return &rdev->rphy;
+ return rphy;
}
-EXPORT_SYMBOL(sas_expander_alloc);
+EXPORT_SYMBOL(sas_rphy_alloc);
/**
* sas_rphy_add -- add a SAS remote PHY to the device hierachy
*/
int sas_rphy_add(struct sas_rphy *rphy)
{
- struct sas_port *parent = dev_to_sas_port(rphy->dev.parent);
+ struct sas_phy *parent = dev_to_phy(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;
(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)
+ else
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, 0,
+ if (rphy->scsi_target_id != -1) {
+ scsi_scan_target(&rphy->dev, parent->port_identifier,
rphy->scsi_target_id, ~0, 0);
}
*/
void sas_rphy_free(struct sas_rphy *rphy)
{
- struct device *dev = &rphy->dev;
struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent);
struct sas_host_attrs *sas_host = to_sas_host_attrs(shost);
list_del(&rphy->list);
mutex_unlock(&sas_host->lock);
- transport_destroy_device(dev);
-
- put_device(dev);
+ transport_destroy_device(&rphy->dev);
+ put_device(rphy->dev.parent);
+ put_device(rphy->dev.parent);
+ put_device(rphy->dev.parent);
+ kfree(rphy);
}
EXPORT_SYMBOL(sas_rphy_free);
sas_rphy_delete(struct sas_rphy *rphy)
{
struct device *dev = &rphy->dev;
- struct sas_port *parent = dev_to_sas_port(dev->parent);
+ 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);
break;
case SAS_EDGE_EXPANDER_DEVICE:
case SAS_FANOUT_EXPANDER_DEVICE:
- sas_remove_children(dev);
+ device_for_each_child(dev, NULL, do_sas_phy_delete);
break;
default:
break;
parent->rphy = NULL;
- put_device(dev);
+ put_device(&parent->dev);
}
EXPORT_SYMBOL(sas_rphy_delete);
*/
int scsi_is_sas_rphy(const struct device *dev)
{
- return dev->release == sas_end_device_release ||
- dev->release == sas_expander_release;
+ return dev->release == sas_rphy_release;
}
EXPORT_SYMBOL(scsi_is_sas_rphy);
mutex_lock(&sas_host->lock);
list_for_each_entry(rphy, &sas_host->rphy_list, list) {
- if (rphy->identify.device_type != SAS_END_DEVICE ||
- rphy->scsi_target_id == -1)
+ struct sas_phy *parent = dev_to_phy(rphy->dev.parent);
+
+ if (rphy->scsi_target_id == -1)
continue;
- if ((channel == SCAN_WILD_CARD || channel == 0) &&
+ if ((channel == SCAN_WILD_CARD || channel == parent->port_identifier) &&
(id == SCAN_WILD_CARD || id == rphy->scsi_target_id)) {
- scsi_scan_target(&rphy->dev, 0,
+ scsi_scan_target(&rphy->dev, parent->port_identifier,
rphy->scsi_target_id, lun, 1);
}
}
* Setup / Teardown code
*/
-#define SETUP_TEMPLATE(attrb, field, perm, test) \
- i->private_##attrb[count] = class_device_attr_##field; \
- i->private_##attrb[count].attr.mode = perm; \
- 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_PHY_ATTRIBUTE(field) \
- SETUP_TEMPLATE(phy_attrs, field, S_IRUGO, 1)
+#define SETUP_RPORT_ATTRIBUTE(field) \
+ i->private_rphy_attrs[count] = class_device_attr_##field; \
+ i->private_rphy_attrs[count].attr.mode = S_IRUGO; \
+ i->private_rphy_attrs[count].store = NULL; \
+ i->rphy_attrs[count] = &i->private_rphy_attrs[count]; \
+ count++
#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_PHY_ATTRIBUTE_WRONLY(field) \
- SETUP_TEMPLATE(phy_attrs, field, S_IWUGO, 1)
+ i->private_phy_attrs[count] = class_device_attr_##field; \
+ i->private_phy_attrs[count].attr.mode = S_IRUGO; \
+ i->private_phy_attrs[count].store = NULL; \
+ i->phy_attrs[count] = &i->private_phy_attrs[count]; \
+ count++
-#define SETUP_OPTIONAL_PHY_ATTRIBUTE_WRONLY(field, func) \
- SETUP_TEMPLATE(phy_attrs, field, S_IWUGO, i->f->func)
+#define SETUP_PORT_ATTRIBUTE_WRONLY(field) \
+ i->private_phy_attrs[count] = class_device_attr_##field; \
+ i->private_phy_attrs[count].attr.mode = S_IWUGO; \
+ i->private_phy_attrs[count].show = NULL; \
+ i->phy_attrs[count] = &i->private_phy_attrs[count]; \
+ count++
-#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
struct sas_internal *i;
int count;
- i = kzalloc(sizeof(struct sas_internal), GFP_KERNEL);
+ i = kmalloc(sizeof(struct sas_internal), GFP_KERNEL);
if (!i)
return NULL;
+ memset(i, 0, sizeof(struct sas_internal));
i->t.user_scan = sas_user_scan;
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;
transport_container_register(&i->rphy_attr_cont);
- i->end_dev_attr_cont.ac.class = &sas_end_dev_class.class;
- i->end_dev_attr_cont.ac.attrs = &i->end_dev_attrs[0];
- 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_PORT_ATTRIBUTE(num_phys);
i->host_attrs[count] = NULL;
count = 0;
- 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(minimum_linkrate);
- SETUP_PHY_ATTRIBUTE(maximum_linkrate_hw);
- SETUP_PHY_ATTRIBUTE(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_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_PORT_ATTRIBUTE_WRONLY(link_reset);
+ SETUP_PORT_ATTRIBUTE_WRONLY(hard_reset);
i->phy_attrs[count] = NULL;
- count = 0;
- SETUP_PORT_ATTRIBUTE(num_phys);
- i->port_attrs[count] = NULL;
-
count = 0;
SETUP_RPORT_ATTRIBUTE(rphy_initiator_port_protocols);
SETUP_RPORT_ATTRIBUTE(rphy_target_port_protocols);
SETUP_RPORT_ATTRIBUTE(rphy_device_type);
SETUP_RPORT_ATTRIBUTE(rphy_sas_address);
SETUP_RPORT_ATTRIBUTE(rphy_phy_identifier);
- SETUP_OPTIONAL_RPORT_ATTRIBUTE(rphy_enclosure_identifier,
- get_enclosure_identifier);
- SETUP_OPTIONAL_RPORT_ATTRIBUTE(rphy_bay_identifier,
- get_bay_identifier);
i->rphy_attrs[count] = NULL;
- count = 0;
- SETUP_END_DEV_ATTRIBUTE(end_dev_ready_led_meaning);
- SETUP_END_DEV_ATTRIBUTE(end_dev_I_T_nexus_loss_timeout);
- 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->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);
kfree(i);
}
error = transport_class_register(&sas_phy_class);
if (error)
goto out_unregister_transport;
- 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;
- error = transport_class_register(&sas_expander_class);
- if (error)
- goto out_unregister_end_dev;
+ goto out_unregister_phy;
return 0;
- out_unregister_end_dev:
- 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");