* Sven Schuetz
*/
+#define KMSG_COMPONENT "zfcp"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
#include <linux/miscdevice.h>
+#include <linux/seq_file.h>
#include "zfcp_ext.h"
+#define ZFCP_BUS_ID_SIZE 20
+
static char *device;
MODULE_AUTHOR("IBM Deutschland Entwicklung GmbH - linux390@de.ibm.com");
strcpy(str, devstr);
token = strsep(&str, ",");
- if (!token || strlen(token) >= BUS_ID_SIZE)
+ if (!token || strlen(token) >= ZFCP_BUS_ID_SIZE)
goto err_out;
- strncpy(zfcp_data.init_busid, token, BUS_ID_SIZE);
+ strncpy(zfcp_data.init_busid, token, ZFCP_BUS_ID_SIZE);
token = strsep(&str, ",");
- if (!token || strict_strtoull(token, 0, &zfcp_data.init_wwpn))
+ if (!token || strict_strtoull(token, 0,
+ (unsigned long long *) &zfcp_data.init_wwpn))
goto err_out;
token = strsep(&str, ",");
- if (!token || strict_strtoull(token, 0, &zfcp_data.init_fcp_lun))
+ if (!token || strict_strtoull(token, 0,
+ (unsigned long long *) &zfcp_data.init_fcp_lun))
goto err_out;
kfree(str);
err_out:
kfree(str);
- pr_err("zfcp: %s is not a valid SCSI device\n", devstr);
+ pr_err("%s is not a valid SCSI device\n", devstr);
return 0;
}
-static struct zfcp_adapter *zfcp_get_adapter_by_busid(char *bus_id)
-{
- struct zfcp_adapter *adapter;
-
- list_for_each_entry(adapter, &zfcp_data.adapter_list_head, list)
- if ((strncmp(bus_id, adapter->ccw_device->dev.bus_id,
- BUS_ID_SIZE) == 0) &&
- !(atomic_read(&adapter->status) &
- ZFCP_STATUS_COMMON_REMOVE))
- return adapter;
- return NULL;
-}
-
static void __init zfcp_init_device_configure(void)
{
struct zfcp_adapter *adapter;
goto out_unit;
up(&zfcp_data.config_sema);
ccw_device_set_online(adapter->ccw_device);
+
zfcp_erp_wait(adapter);
+ wait_event(adapter->erp_done_wqh,
+ !(atomic_read(&unit->status) &
+ ZFCP_STATUS_UNIT_SCSI_WORK_PENDING));
+
down(&zfcp_data.config_sema);
zfcp_unit_put(unit);
out_unit:
if (!zfcp_data.gid_pn_cache)
goto out_gid_cache;
- INIT_LIST_HEAD(&zfcp_data.adapter_list_head);
- INIT_LIST_HEAD(&zfcp_data.adapter_remove_lh);
+ zfcp_data.work_queue = create_singlethread_workqueue("zfcp_wq");
sema_init(&zfcp_data.config_sema, 1);
rwlock_init(&zfcp_data.config_lock);
retval = misc_register(&zfcp_cfdc_misc);
if (retval) {
- pr_err("zfcp: Registering the misc device zfcp_cfdc failed\n");
+ pr_err("Registering the misc device zfcp_cfdc failed\n");
goto out_misc;
}
retval = zfcp_ccw_register();
if (retval) {
- pr_err("zfcp: The zfcp device driver could not register with "
+ pr_err("The zfcp device driver could not register with "
"the common I/O layer\n");
goto out_ccw_register;
}
*
* Returns: pointer to zfcp_unit or NULL
*/
-struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *port,
- fcp_lun_t fcp_lun)
+struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *port, u64 fcp_lun)
{
struct zfcp_unit *unit;
* Returns: pointer to zfcp_port or NULL
*/
struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *adapter,
- wwn_t wwpn)
+ u64 wwpn)
{
struct zfcp_port *port;
*
* Sets up some unit internal structures and creates sysfs entry.
*/
-struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *port, fcp_lun_t fcp_lun)
+struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *port, u64 fcp_lun)
{
struct zfcp_unit *unit;
unit->port = port;
unit->fcp_lun = fcp_lun;
- snprintf(unit->sysfs_device.bus_id, BUS_ID_SIZE, "0x%016llx", fcp_lun);
+ dev_set_name(&unit->sysfs_device, "0x%016llx",
+ (unsigned long long) fcp_lun);
unit->sysfs_device.parent = &port->sysfs_device;
unit->sysfs_device.release = zfcp_sysfs_unit_release;
dev_set_drvdata(&unit->sysfs_device, unit);
}
zfcp_unit_get(unit);
- unit->scsi_lun = scsilun_to_int((struct scsi_lun *)&unit->fcp_lun);
write_lock_irq(&zfcp_data.config_lock);
list_add_tail(&unit->list, &port->unit_list_head);
write_unlock_irq(&zfcp_data.config_lock);
- port->units++;
zfcp_port_get(port);
return unit;
write_lock_irq(&zfcp_data.config_lock);
list_del(&unit->list);
write_unlock_irq(&zfcp_data.config_lock);
- unit->port->units--;
zfcp_port_put(unit->port);
sysfs_remove_group(&unit->sysfs_device.kobj, &zfcp_sysfs_unit_attrs);
device_unregister(&unit->sysfs_device);
mempool_destroy(adapter->pool.data_gid_pn);
}
-static void zfcp_dummy_release(struct device *dev)
-{
- return;
-}
-
/**
* zfcp_status_read_refill - refill the long running status_read_requests
* @adapter: ptr to struct zfcp_adapter for which the buffers should be refilled
stat_work));
}
-static int zfcp_nameserver_enqueue(struct zfcp_adapter *adapter)
+static void zfcp_print_sl(struct seq_file *m, struct service_level *sl)
{
- struct zfcp_port *port;
+ struct zfcp_adapter *adapter =
+ container_of(sl, struct zfcp_adapter, service_level);
- port = zfcp_port_enqueue(adapter, 0, ZFCP_STATUS_PORT_WKA,
- ZFCP_DID_DIRECTORY_SERVICE);
- if (IS_ERR(port))
- return PTR_ERR(port);
- zfcp_port_put(port);
-
- return 0;
+ seq_printf(m, "zfcp: %s microcode level %x\n",
+ dev_name(&adapter->ccw_device->dev),
+ adapter->fsf_lic_version);
}
/**
init_waitqueue_head(&adapter->erp_done_wqh);
INIT_LIST_HEAD(&adapter->port_list_head);
- INIT_LIST_HEAD(&adapter->port_remove_lh);
INIT_LIST_HEAD(&adapter->erp_ready_head);
INIT_LIST_HEAD(&adapter->erp_running_head);
spin_lock_init(&adapter->san_dbf_lock);
spin_lock_init(&adapter->scsi_dbf_lock);
spin_lock_init(&adapter->rec_dbf_lock);
- spin_lock_init(&adapter->req_q.lock);
+ spin_lock_init(&adapter->req_q_lock);
rwlock_init(&adapter->erp_lock);
rwlock_init(&adapter->abort_lock);
INIT_WORK(&adapter->stat_work, _zfcp_status_read_scheduler);
INIT_WORK(&adapter->scan_work, _zfcp_scan_ports_later);
+ adapter->service_level.seq_print = zfcp_print_sl;
+
/* mark adapter unusable as long as sysfs registration is not complete */
atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status);
&zfcp_sysfs_adapter_attrs))
goto sysfs_failed;
- adapter->generic_services.parent = &adapter->ccw_device->dev;
- adapter->generic_services.release = zfcp_dummy_release;
- snprintf(adapter->generic_services.bus_id, BUS_ID_SIZE,
- "generic_services");
-
- if (device_register(&adapter->generic_services))
- goto generic_services_failed;
-
- write_lock_irq(&zfcp_data.config_lock);
atomic_clear_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status);
- list_add_tail(&adapter->list, &zfcp_data.adapter_list_head);
- write_unlock_irq(&zfcp_data.config_lock);
-
- zfcp_data.adapters++;
+ zfcp_fc_nameserver_init(adapter);
- zfcp_nameserver_enqueue(adapter);
-
- return 0;
+ if (!zfcp_adapter_scsi_register(adapter))
+ return 0;
-generic_services_failed:
- sysfs_remove_group(&ccw_device->dev.kobj,
- &zfcp_sysfs_adapter_attrs);
sysfs_failed:
zfcp_adapter_debug_unregister(adapter);
debug_register_failed:
cancel_work_sync(&adapter->scan_work);
cancel_work_sync(&adapter->stat_work);
zfcp_adapter_scsi_unregister(adapter);
- device_unregister(&adapter->generic_services);
sysfs_remove_group(&adapter->ccw_device->dev.kobj,
&zfcp_sysfs_adapter_attrs);
dev_set_drvdata(&adapter->ccw_device->dev, NULL);
return;
zfcp_adapter_debug_unregister(adapter);
-
- /* remove specified adapter data structure from list */
- write_lock_irq(&zfcp_data.config_lock);
- list_del(&adapter->list);
- write_unlock_irq(&zfcp_data.config_lock);
-
- /* decrease number of adapters in list */
- zfcp_data.adapters--;
-
zfcp_qdio_free(adapter);
-
zfcp_free_low_mem_buffers(adapter);
kfree(adapter->req_list);
kfree(adapter->fc_stats);
* d_id is used to enqueue ports with a well known address like the Directory
* Service for nameserver lookup.
*/
-struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, wwn_t wwpn,
+struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn,
u32 status, u32 d_id)
{
struct zfcp_port *port;
int retval;
- char *bus_id;
port = kzalloc(sizeof(struct zfcp_port), GFP_KERNEL);
if (!port)
return ERR_PTR(-ENOMEM);
init_waitqueue_head(&port->remove_wq);
-
INIT_LIST_HEAD(&port->unit_list_head);
- INIT_LIST_HEAD(&port->unit_remove_lh);
+ INIT_WORK(&port->gid_pn_work, zfcp_erp_port_strategy_open_lookup);
port->adapter = adapter;
port->d_id = d_id;
atomic_set_mask(status | ZFCP_STATUS_COMMON_REMOVE, &port->status);
atomic_set(&port->refcount, 0);
- if (status & ZFCP_STATUS_PORT_WKA) {
- switch (d_id) {
- case ZFCP_DID_DIRECTORY_SERVICE:
- bus_id = "directory";
- break;
- case ZFCP_DID_MANAGEMENT_SERVICE:
- bus_id = "management";
- break;
- case ZFCP_DID_KEY_DISTRIBUTION_SERVICE:
- bus_id = "key_distribution";
- break;
- case ZFCP_DID_ALIAS_SERVICE:
- bus_id = "alias";
- break;
- case ZFCP_DID_TIME_SERVICE:
- bus_id = "time";
- break;
- default:
- kfree(port);
- return ERR_PTR(-EINVAL);
- }
- snprintf(port->sysfs_device.bus_id, BUS_ID_SIZE, "%s", bus_id);
- port->sysfs_device.parent = &adapter->generic_services;
- } else {
- snprintf(port->sysfs_device.bus_id,
- BUS_ID_SIZE, "0x%016llx", wwpn);
- port->sysfs_device.parent = &adapter->ccw_device->dev;
- }
+ dev_set_name(&port->sysfs_device, "0x%016llx",
+ (unsigned long long)wwpn);
+ port->sysfs_device.parent = &adapter->ccw_device->dev;
port->sysfs_device.release = zfcp_sysfs_port_release;
dev_set_drvdata(&port->sysfs_device, port);
if (device_register(&port->sysfs_device))
goto err_out_free;
- if (status & ZFCP_STATUS_PORT_WKA)
- retval = sysfs_create_group(&port->sysfs_device.kobj,
- &zfcp_sysfs_ns_port_attrs);
- else
- retval = sysfs_create_group(&port->sysfs_device.kobj,
- &zfcp_sysfs_port_attrs);
+ retval = sysfs_create_group(&port->sysfs_device.kobj,
+ &zfcp_sysfs_port_attrs);
if (retval) {
device_unregister(&port->sysfs_device);
list_add_tail(&port->list, &adapter->port_list_head);
atomic_clear_mask(ZFCP_STATUS_COMMON_REMOVE, &port->status);
atomic_set_mask(ZFCP_STATUS_COMMON_RUNNING, &port->status);
- if (d_id == ZFCP_DID_DIRECTORY_SERVICE)
- if (!adapter->nameserver_port)
- adapter->nameserver_port = port;
- adapter->ports++;
write_unlock_irq(&zfcp_data.config_lock);
wait_event(port->remove_wq, atomic_read(&port->refcount) == 0);
write_lock_irq(&zfcp_data.config_lock);
list_del(&port->list);
- port->adapter->ports--;
write_unlock_irq(&zfcp_data.config_lock);
if (port->rport)
fc_remote_port_delete(port->rport);
port->rport = NULL;
zfcp_adapter_put(port->adapter);
- if (atomic_read(&port->status) & ZFCP_STATUS_PORT_WKA)
- sysfs_remove_group(&port->sysfs_device.kobj,
- &zfcp_sysfs_ns_port_attrs);
- else
- sysfs_remove_group(&port->sysfs_device.kobj,
- &zfcp_sysfs_port_attrs);
+ sysfs_remove_group(&port->sysfs_device.kobj, &zfcp_sysfs_port_attrs);
device_unregister(&port->sysfs_device);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff