ZFCP_ERP_STEP_FSF_XCONFIG = 0x0001,
ZFCP_ERP_STEP_PHYS_PORT_CLOSING = 0x0010,
ZFCP_ERP_STEP_PORT_CLOSING = 0x0100,
- ZFCP_ERP_STEP_NAMESERVER_OPEN = 0x0200,
ZFCP_ERP_STEP_NAMESERVER_LOOKUP = 0x0400,
ZFCP_ERP_STEP_PORT_OPENING = 0x0800,
ZFCP_ERP_STEP_UNIT_CLOSING = 0x1000,
struct zfcp_port *port;
list_for_each_entry(port, &adapter->port_list_head, list)
- if (!(atomic_read(&port->status) & ZFCP_STATUS_PORT_WKA))
- _zfcp_erp_port_reopen(port, clear, id, ref);
+ _zfcp_erp_port_reopen(port, clear, id, ref);
}
static void _zfcp_erp_unit_reopen_all(struct zfcp_port *port, int clear, u8 id,
int ret;
struct zfcp_adapter *adapter = act->adapter;
- atomic_clear_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status);
-
write_lock_irq(&adapter->erp_lock);
zfcp_erp_action_to_running(act);
write_unlock_irq(&adapter->erp_lock);
ZFCP_STATUS_COMMON_OPEN, ZFCP_CLEAR);
failed_qdio:
atomic_clear_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK |
- ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
- ZFCP_STATUS_ADAPTER_XPORT_OK,
+ ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
&act->adapter->status);
return retval;
}
{
int retval;
- atomic_set_mask(ZFCP_STATUS_COMMON_CLOSING, &act->adapter->status);
zfcp_erp_adapter_strategy_generic(act, 1); /* close */
- atomic_clear_mask(ZFCP_STATUS_COMMON_CLOSING, &act->adapter->status);
if (act->status & ZFCP_STATUS_ERP_CLOSE_ONLY)
return ZFCP_ERP_EXIT;
- atomic_set_mask(ZFCP_STATUS_COMMON_OPENING, &act->adapter->status);
retval = zfcp_erp_adapter_strategy_generic(act, 0); /* open */
- atomic_clear_mask(ZFCP_STATUS_COMMON_OPENING, &act->adapter->status);
if (retval == ZFCP_ERP_FAILED)
ssleep(8);
static void zfcp_erp_port_strategy_clearstati(struct zfcp_port *port)
{
- atomic_clear_mask(ZFCP_STATUS_COMMON_OPENING |
- ZFCP_STATUS_COMMON_CLOSING |
- ZFCP_STATUS_COMMON_ACCESS_DENIED |
- ZFCP_STATUS_PORT_DID_DID |
+ atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
ZFCP_STATUS_PORT_PHYS_CLOSING |
ZFCP_STATUS_PORT_INVALID_WWPN,
&port->status);
return ZFCP_ERP_CONTINUES;
}
-static void zfcp_erp_port_strategy_open_ns_wake(struct zfcp_erp_action *ns_act)
-{
- unsigned long flags;
- struct zfcp_adapter *adapter = ns_act->adapter;
- struct zfcp_erp_action *act, *tmp;
- int status;
-
- read_lock_irqsave(&adapter->erp_lock, flags);
- list_for_each_entry_safe(act, tmp, &adapter->erp_running_head, list) {
- if (act->step == ZFCP_ERP_STEP_NAMESERVER_OPEN) {
- status = atomic_read(&adapter->nameserver_port->status);
- if (status & ZFCP_STATUS_COMMON_ERP_FAILED)
- zfcp_erp_port_failed(act->port, 27, NULL);
- zfcp_erp_action_ready(act);
- }
- }
- read_unlock_irqrestore(&adapter->erp_lock, flags);
-}
-
-static int zfcp_erp_port_strategy_open_nameserver(struct zfcp_erp_action *act)
-{
- int retval;
-
- switch (act->step) {
- case ZFCP_ERP_STEP_UNINITIALIZED:
- case ZFCP_ERP_STEP_PHYS_PORT_CLOSING:
- case ZFCP_ERP_STEP_PORT_CLOSING:
- return zfcp_erp_port_strategy_open_port(act);
-
- case ZFCP_ERP_STEP_PORT_OPENING:
- if (atomic_read(&act->port->status) & ZFCP_STATUS_COMMON_OPEN)
- retval = ZFCP_ERP_SUCCEEDED;
- else
- retval = ZFCP_ERP_FAILED;
- /* this is needed anyway */
- zfcp_erp_port_strategy_open_ns_wake(act);
- return retval;
-
- default:
- return ZFCP_ERP_FAILED;
- }
-}
-
-static int zfcp_erp_port_strategy_open_lookup(struct zfcp_erp_action *act)
-{
- int retval;
-
- retval = zfcp_fc_ns_gid_pn_request(act);
- if (retval == -ENOMEM)
- return ZFCP_ERP_NOMEM;
- act->step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP;
- if (retval)
- return ZFCP_ERP_FAILED;
- return ZFCP_ERP_CONTINUES;
-}
-
static int zfcp_erp_open_ptp_port(struct zfcp_erp_action *act)
{
struct zfcp_adapter *adapter = act->adapter;
struct zfcp_port *port = act->port;
if (port->wwpn != adapter->peer_wwpn) {
- dev_err(&adapter->ccw_device->dev,
- "Failed to open port 0x%016Lx, "
- "Peer WWPN 0x%016Lx does not "
- "match.\n", port->wwpn,
- adapter->peer_wwpn);
zfcp_erp_port_failed(port, 25, NULL);
return ZFCP_ERP_FAILED;
}
return zfcp_erp_port_strategy_open_port(act);
}
+void zfcp_erp_port_strategy_open_lookup(struct work_struct *work)
+{
+ int retval;
+ struct zfcp_port *port = container_of(work, struct zfcp_port,
+ gid_pn_work);
+
+ retval = zfcp_fc_ns_gid_pn(&port->erp_action);
+ if (retval == -ENOMEM)
+ zfcp_erp_notify(&port->erp_action, ZFCP_ERP_NOMEM);
+ port->erp_action.step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP;
+ if (retval)
+ zfcp_erp_notify(&port->erp_action, ZFCP_ERP_FAILED);
+
+}
+
static int zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *act)
{
struct zfcp_adapter *adapter = act->adapter;
struct zfcp_port *port = act->port;
- struct zfcp_port *ns_port = adapter->nameserver_port;
int p_status = atomic_read(&port->status);
switch (act->step) {
case ZFCP_ERP_STEP_PORT_CLOSING:
if (fc_host_port_type(adapter->scsi_host) == FC_PORTTYPE_PTP)
return zfcp_erp_open_ptp_port(act);
- if (!ns_port) {
- dev_err(&adapter->ccw_device->dev,
- "Nameserver port unavailable.\n");
- return ZFCP_ERP_FAILED;
- }
- if (!(atomic_read(&ns_port->status) &
- ZFCP_STATUS_COMMON_UNBLOCKED)) {
- /* nameserver port may live again */
- atomic_set_mask(ZFCP_STATUS_COMMON_RUNNING,
- &ns_port->status);
- if (zfcp_erp_port_reopen(ns_port, 0, 77, act) >= 0) {
- act->step = ZFCP_ERP_STEP_NAMESERVER_OPEN;
- return ZFCP_ERP_CONTINUES;
- }
- return ZFCP_ERP_FAILED;
+ if (!(p_status & ZFCP_STATUS_PORT_DID_DID)) {
+ queue_work(zfcp_data.work_queue, &port->gid_pn_work);
+ return ZFCP_ERP_CONTINUES;
}
- /* else nameserver port is already open, fall through */
- case ZFCP_ERP_STEP_NAMESERVER_OPEN:
- if (!(atomic_read(&ns_port->status) & ZFCP_STATUS_COMMON_OPEN))
- return ZFCP_ERP_FAILED;
- return zfcp_erp_port_strategy_open_lookup(act);
-
case ZFCP_ERP_STEP_NAMESERVER_LOOKUP:
if (!(p_status & ZFCP_STATUS_PORT_DID_DID)) {
if (p_status & (ZFCP_STATUS_PORT_INVALID_WWPN)) {
case ZFCP_ERP_STEP_PORT_OPENING:
/* D_ID might have changed during open */
- if ((p_status & ZFCP_STATUS_COMMON_OPEN) &&
- (p_status & ZFCP_STATUS_PORT_DID_DID))
- return ZFCP_ERP_SUCCEEDED;
+ if (p_status & ZFCP_STATUS_COMMON_OPEN) {
+ if (p_status & ZFCP_STATUS_PORT_DID_DID)
+ return ZFCP_ERP_SUCCEEDED;
+ else {
+ act->step = ZFCP_ERP_STEP_PORT_CLOSING;
+ return ZFCP_ERP_CONTINUES;
+ }
/* fall through otherwise */
+ }
}
return ZFCP_ERP_FAILED;
}
-static int zfcp_erp_port_strategy_open(struct zfcp_erp_action *act)
-{
- if (atomic_read(&act->port->status) & (ZFCP_STATUS_PORT_WKA))
- return zfcp_erp_port_strategy_open_nameserver(act);
- return zfcp_erp_port_strategy_open_common(act);
-}
-
static int zfcp_erp_port_strategy(struct zfcp_erp_action *erp_action)
{
struct zfcp_port *port = erp_action->port;
+ if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_NOESC)
+ goto close_init_done;
+
switch (erp_action->step) {
case ZFCP_ERP_STEP_UNINITIALIZED:
zfcp_erp_port_strategy_clearstati(port);
return ZFCP_ERP_FAILED;
break;
}
+
+close_init_done:
if (erp_action->status & ZFCP_STATUS_ERP_CLOSE_ONLY)
return ZFCP_ERP_EXIT;
- else
- return zfcp_erp_port_strategy_open(erp_action);
- return ZFCP_ERP_FAILED;
+ return zfcp_erp_port_strategy_open_common(erp_action);
}
static void zfcp_erp_unit_strategy_clearstati(struct zfcp_unit *unit)
{
- atomic_clear_mask(ZFCP_STATUS_COMMON_OPENING |
- ZFCP_STATUS_COMMON_CLOSING |
- ZFCP_STATUS_COMMON_ACCESS_DENIED |
+ atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
ZFCP_STATUS_UNIT_SHARED |
ZFCP_STATUS_UNIT_READONLY,
&unit->status);
break;
case ZFCP_ERP_FAILED :
atomic_inc(&unit->erp_counter);
- if (atomic_read(&unit->erp_counter) > ZFCP_MAX_ERPS)
+ if (atomic_read(&unit->erp_counter) > ZFCP_MAX_ERPS) {
+ dev_err(&unit->port->adapter->ccw_device->dev,
+ "ERP failed for unit 0x%016Lx on "
+ "port 0x%016Lx\n",
+ (unsigned long long)unit->fcp_lun,
+ (unsigned long long)unit->port->wwpn);
zfcp_erp_unit_failed(unit, 21, NULL);
+ }
break;
}
result = ZFCP_ERP_EXIT;
}
atomic_inc(&port->erp_counter);
- if (atomic_read(&port->erp_counter) > ZFCP_MAX_ERPS)
+ if (atomic_read(&port->erp_counter) > ZFCP_MAX_ERPS) {
+ dev_err(&port->adapter->ccw_device->dev,
+ "ERP failed for remote port 0x%016Lx\n",
+ (unsigned long long)port->wwpn);
zfcp_erp_port_failed(port, 22, NULL);
+ }
break;
}
case ZFCP_ERP_FAILED :
atomic_inc(&adapter->erp_counter);
- if (atomic_read(&adapter->erp_counter) > ZFCP_MAX_ERPS)
+ if (atomic_read(&adapter->erp_counter) > ZFCP_MAX_ERPS) {
+ dev_err(&adapter->ccw_device->dev,
+ "ERP cannot recover an error "
+ "on the FCP device\n");
zfcp_erp_adapter_failed(adapter, 23, NULL);
+ }
break;
}
struct zfcp_unit *unit = p->unit;
struct fc_rport *rport = unit->port->rport;
scsi_scan_target(&rport->dev, 0, rport->scsi_target_id,
- unit->scsi_lun, 0);
+ scsilun_to_int((struct scsi_lun *)&unit->fcp_lun), 0);
atomic_clear_mask(ZFCP_STATUS_UNIT_SCSI_WORK_PENDING, &unit->status);
zfcp_unit_put(unit);
+ wake_up(&unit->port->adapter->erp_done_wqh);
kfree(p);
}
p = kzalloc(sizeof(*p), GFP_KERNEL);
if (!p) {
dev_err(&unit->port->adapter->ccw_device->dev,
- "Out of resources. Could not register unit "
- "0x%016Lx on port 0x%016Lx with SCSI stack.\n",
- unit->fcp_lun, unit->port->wwpn);
+ "Registering unit 0x%016Lx on port 0x%016Lx failed\n",
+ (unsigned long long)unit->fcp_lun,
+ (unsigned long long)unit->port->wwpn);
return;
}
atomic_set_mask(ZFCP_STATUS_UNIT_SCSI_WORK_PENDING, &unit->status);
INIT_WORK(&p->work, zfcp_erp_scsi_scan);
p->unit = unit;
- schedule_work(&p->work);
+ queue_work(zfcp_data.work_queue, &p->work);
}
static void zfcp_erp_rport_register(struct zfcp_port *port)
port->rport = fc_remote_port_add(port->adapter->scsi_host, 0, &ids);
if (!port->rport) {
dev_err(&port->adapter->ccw_device->dev,
- "Failed registration of rport "
- "0x%016Lx.\n", port->wwpn);
+ "Registering port 0x%016Lx failed\n",
+ (unsigned long long)port->wwpn);
return;
}
static void zfcp_erp_rports_del(struct zfcp_adapter *adapter)
{
struct zfcp_port *port;
- list_for_each_entry(port, &adapter->port_list_head, list)
- if (port->rport && !(atomic_read(&port->status) &
- ZFCP_STATUS_PORT_WKA)) {
- fc_remote_port_delete(port->rport);
- port->rport = NULL;
- }
+ list_for_each_entry(port, &adapter->port_list_head, list) {
+ if (!port->rport)
+ continue;
+ fc_remote_port_delete(port->rport);
+ port->rport = NULL;
+ }
}
static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result)
struct zfcp_erp_action *act;
unsigned long flags;
- daemonize("zfcperp%s", adapter->ccw_device->dev.bus_id);
+ daemonize("zfcperp%s", dev_name(&adapter->ccw_device->dev));
/* Block all signals */
siginitsetinv(¤t->blocked, 0);
atomic_set_mask(ZFCP_STATUS_ADAPTER_ERP_THREAD_UP, &adapter->status);
zfcp_erp_wakeup(adapter);
}
- zfcp_rec_dbf_event_thread(4, adapter);
+ zfcp_rec_dbf_event_thread_lock(4, adapter);
down_interruptible(&adapter->erp_ready_sem);
- zfcp_rec_dbf_event_thread(5, adapter);
+ zfcp_rec_dbf_event_thread_lock(5, adapter);
}
atomic_clear_mask(ZFCP_STATUS_ADAPTER_ERP_THREAD_UP, &adapter->status);
retval = kernel_thread(zfcp_erp_thread, adapter, SIGCHLD);
if (retval < 0) {
dev_err(&adapter->ccw_device->dev,
- "Creation of ERP thread failed.\n");
+ "Creating an ERP thread for the FCP device failed.\n");
return retval;
}
wait_event(adapter->erp_thread_wqh,
{
atomic_set_mask(ZFCP_STATUS_ADAPTER_ERP_THREAD_KILL, &adapter->status);
up(&adapter->erp_ready_sem);
- zfcp_rec_dbf_event_thread_lock(2, adapter);
+ zfcp_rec_dbf_event_thread_lock(3, adapter);
wait_event(adapter->erp_thread_wqh,
!(atomic_read(&adapter->status) &
{
zfcp_erp_modify_adapter_status(adapter, id, ref,
ZFCP_STATUS_COMMON_ERP_FAILED, ZFCP_SET);
- dev_err(&adapter->ccw_device->dev, "Adapter ERP failed.\n");
}
/**
{
zfcp_erp_modify_port_status(port, id, ref,
ZFCP_STATUS_COMMON_ERP_FAILED, ZFCP_SET);
-
- if (atomic_read(&port->status) & ZFCP_STATUS_PORT_WKA)
- dev_err(&port->adapter->ccw_device->dev,
- "Port ERP failed for WKA port d_id=0x%06x.\n",
- port->d_id);
- else
- dev_err(&port->adapter->ccw_device->dev,
- "Port ERP failed for port wwpn=0x%016Lx.\n",
- port->wwpn);
}
/**
{
zfcp_erp_modify_unit_status(unit, id, ref,
ZFCP_STATUS_COMMON_ERP_FAILED, ZFCP_SET);
-
- dev_err(&unit->port->adapter->ccw_device->dev,
- "Unit ERP failed for unit 0x%016Lx on port 0x%016Lx.\n",
- unit->fcp_lun, unit->port->wwpn);
}
/**
if (!(status & (ZFCP_STATUS_COMMON_ACCESS_DENIED |
ZFCP_STATUS_COMMON_ACCESS_BOXED))) {
- if (!(status & ZFCP_STATUS_PORT_WKA))
- list_for_each_entry(unit, &port->unit_list_head, list)
- zfcp_erp_unit_access_changed(unit, id, ref);
+ list_for_each_entry(unit, &port->unit_list_head, list)
+ zfcp_erp_unit_access_changed(unit, id, ref);
return;
}
return;
read_lock_irqsave(&zfcp_data.config_lock, flags);
- if (adapter->nameserver_port)
- zfcp_erp_port_access_changed(adapter->nameserver_port, id, ref);
list_for_each_entry(port, &adapter->port_list_head, list)
- if (port != adapter->nameserver_port)
- zfcp_erp_port_access_changed(port, id, ref);
+ zfcp_erp_port_access_changed(port, id, ref);
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
}
projects / linux-2.6-omap-h63xx.git / blobdiff