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authorMartin Peschke <mp3@de.ibm.com>2008-03-27 14:22:03 +0100
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-04-07 12:19:04 -0500
commit9467a9b3efdd9041202f71cc270bda827a7ec777 (patch)
tree9e7b8e167da9aa5065b1f7ed1d2a1ab9c2ad47da /drivers/s390/scsi/zfcp_erp.c
parent698ec01635819c5ae60090bb4efcbeffc41642fb (diff)
[SCSI] zfcp: Trace all triggers of error recovery activity
This patch allows any recovery event to be traced back to an exact cause, e.g. a particular request identified by an id (address). Signed-off-by: Martin Peschke <mp3@de.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/s390/scsi/zfcp_erp.c')
-rw-r--r--drivers/s390/scsi/zfcp_erp.c213
1 files changed, 108 insertions, 105 deletions
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index bee03443efd..55e034b10de 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -26,13 +26,16 @@
static int zfcp_erp_adisc(struct zfcp_port *);
static void zfcp_erp_adisc_handler(unsigned long);
-static int zfcp_erp_adapter_reopen_internal(struct zfcp_adapter *, int);
-static int zfcp_erp_port_forced_reopen_internal(struct zfcp_port *, int);
-static int zfcp_erp_port_reopen_internal(struct zfcp_port *, int);
-static int zfcp_erp_unit_reopen_internal(struct zfcp_unit *, int);
+static int zfcp_erp_adapter_reopen_internal(struct zfcp_adapter *, int, u8,
+ u64);
+static int zfcp_erp_port_forced_reopen_internal(struct zfcp_port *, int, u8,
+ u64);
+static int zfcp_erp_port_reopen_internal(struct zfcp_port *, int, u8, u64);
+static int zfcp_erp_unit_reopen_internal(struct zfcp_unit *, int, u8, u64);
-static int zfcp_erp_port_reopen_all_internal(struct zfcp_adapter *, int);
-static int zfcp_erp_unit_reopen_all_internal(struct zfcp_port *, int);
+static int zfcp_erp_port_reopen_all_internal(struct zfcp_adapter *, int, u8,
+ u64);
+static int zfcp_erp_unit_reopen_all_internal(struct zfcp_port *, int, u8, u64);
static void zfcp_erp_adapter_block(struct zfcp_adapter *, int);
static void zfcp_erp_adapter_unblock(struct zfcp_adapter *);
@@ -97,7 +100,8 @@ static void zfcp_erp_action_dismiss_unit(struct zfcp_unit *);
static void zfcp_erp_action_dismiss(struct zfcp_erp_action *);
static int zfcp_erp_action_enqueue(int, struct zfcp_adapter *,
- struct zfcp_port *, struct zfcp_unit *);
+ struct zfcp_port *, struct zfcp_unit *,
+ u8 id, u64 ref);
static int zfcp_erp_action_dequeue(struct zfcp_erp_action *);
static void zfcp_erp_action_cleanup(int, struct zfcp_adapter *,
struct zfcp_port *, struct zfcp_unit *,
@@ -179,7 +183,7 @@ static void zfcp_close_fsf(struct zfcp_adapter *adapter)
static void zfcp_fsf_request_timeout_handler(unsigned long data)
{
struct zfcp_adapter *adapter = (struct zfcp_adapter *) data;
- zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED);
+ zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 62, 0);
}
void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, unsigned long timeout)
@@ -200,8 +204,8 @@ void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, unsigned long timeout)
* returns: 0 - initiated action successfully
* <0 - failed to initiate action
*/
-static int
-zfcp_erp_adapter_reopen_internal(struct zfcp_adapter *adapter, int clear_mask)
+static int zfcp_erp_adapter_reopen_internal(struct zfcp_adapter *adapter,
+ int clear_mask, u8 id, u64 ref)
{
int retval;
@@ -221,7 +225,7 @@ zfcp_erp_adapter_reopen_internal(struct zfcp_adapter *adapter, int clear_mask)
goto out;
}
retval = zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_ADAPTER,
- adapter, NULL, NULL);
+ adapter, NULL, NULL, id, ref);
out:
return retval;
@@ -236,56 +240,56 @@ zfcp_erp_adapter_reopen_internal(struct zfcp_adapter *adapter, int clear_mask)
* returns: 0 - initiated action successfully
* <0 - failed to initiate action
*/
-int
-zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear_mask)
+int zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear_mask,
+ u8 id, u64 ref)
{
int retval;
unsigned long flags;
read_lock_irqsave(&zfcp_data.config_lock, flags);
write_lock(&adapter->erp_lock);
- retval = zfcp_erp_adapter_reopen_internal(adapter, clear_mask);
+ retval = zfcp_erp_adapter_reopen_internal(adapter, clear_mask, id, ref);
write_unlock(&adapter->erp_lock);
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
return retval;
}
-int
-zfcp_erp_adapter_shutdown(struct zfcp_adapter *adapter, int clear_mask)
+int zfcp_erp_adapter_shutdown(struct zfcp_adapter *adapter, int clear_mask,
+ u8 id, u64 ref)
{
int retval;
retval = zfcp_erp_adapter_reopen(adapter,
ZFCP_STATUS_COMMON_RUNNING |
ZFCP_STATUS_COMMON_ERP_FAILED |
- clear_mask);
+ clear_mask, id, ref);
return retval;
}
-int
-zfcp_erp_port_shutdown(struct zfcp_port *port, int clear_mask)
+int zfcp_erp_port_shutdown(struct zfcp_port *port, int clear_mask, u8 id,
+ u64 ref)
{
int retval;
retval = zfcp_erp_port_reopen(port,
ZFCP_STATUS_COMMON_RUNNING |
ZFCP_STATUS_COMMON_ERP_FAILED |
- clear_mask);
+ clear_mask, id, ref);
return retval;
}
-int
-zfcp_erp_unit_shutdown(struct zfcp_unit *unit, int clear_mask)
+int zfcp_erp_unit_shutdown(struct zfcp_unit *unit, int clear_mask, u8 id,
+ u64 ref)
{
int retval;
retval = zfcp_erp_unit_reopen(unit,
ZFCP_STATUS_COMMON_RUNNING |
ZFCP_STATUS_COMMON_ERP_FAILED |
- clear_mask);
+ clear_mask, id, ref);
return retval;
}
@@ -400,7 +404,7 @@ zfcp_erp_adisc_handler(unsigned long data)
"(adapter %s, port d_id=0x%06x)\n",
zfcp_get_busid_by_adapter(adapter), d_id);
debug_text_event(adapter->erp_dbf, 3, "forcreop");
- if (zfcp_erp_port_forced_reopen(port, 0))
+ if (zfcp_erp_port_forced_reopen(port, 0, 63, 0))
ZFCP_LOG_NORMAL("failed reopen of port "
"(adapter %s, wwpn=0x%016Lx)\n",
zfcp_get_busid_by_port(port),
@@ -427,7 +431,7 @@ zfcp_erp_adisc_handler(unsigned long data)
"adisc_resp_wwpn=0x%016Lx)\n",
zfcp_get_busid_by_port(port),
port->wwpn, (wwn_t) adisc->wwpn);
- if (zfcp_erp_port_reopen(port, 0))
+ if (zfcp_erp_port_reopen(port, 0, 64, 0))
ZFCP_LOG_NORMAL("failed reopen of port "
"(adapter %s, wwpn=0x%016Lx)\n",
zfcp_get_busid_by_port(port),
@@ -461,7 +465,7 @@ zfcp_test_link(struct zfcp_port *port)
ZFCP_LOG_NORMAL("reopen needed for port 0x%016Lx "
"on adapter %s\n ", port->wwpn,
zfcp_get_busid_by_port(port));
- retval = zfcp_erp_port_forced_reopen(port, 0);
+ retval = zfcp_erp_port_forced_reopen(port, 0, 65, 0);
if (retval != 0) {
ZFCP_LOG_NORMAL("reopen of remote port 0x%016Lx "
"on adapter %s failed\n", port->wwpn,
@@ -484,8 +488,8 @@ zfcp_test_link(struct zfcp_port *port)
* returns: 0 - initiated action successfully
* <0 - failed to initiate action
*/
-static int
-zfcp_erp_port_forced_reopen_internal(struct zfcp_port *port, int clear_mask)
+static int zfcp_erp_port_forced_reopen_internal(struct zfcp_port *port,
+ int clear_mask, u8 id, u64 ref)
{
int retval;
struct zfcp_adapter *adapter = port->adapter;
@@ -509,7 +513,7 @@ zfcp_erp_port_forced_reopen_internal(struct zfcp_port *port, int clear_mask)
}
retval = zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_PORT_FORCED,
- port->adapter, port, NULL);
+ port->adapter, port, NULL, id, ref);
out:
return retval;
@@ -524,8 +528,8 @@ zfcp_erp_port_forced_reopen_internal(struct zfcp_port *port, int clear_mask)
* returns: 0 - initiated action successfully
* <0 - failed to initiate action
*/
-int
-zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear_mask)
+int zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear_mask, u8 id,
+ u64 ref)
{
int retval;
unsigned long flags;
@@ -534,7 +538,8 @@ zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear_mask)
adapter = port->adapter;
read_lock_irqsave(&zfcp_data.config_lock, flags);
write_lock(&adapter->erp_lock);
- retval = zfcp_erp_port_forced_reopen_internal(port, clear_mask);
+ retval = zfcp_erp_port_forced_reopen_internal(port, clear_mask, id,
+ ref);
write_unlock(&adapter->erp_lock);
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
@@ -551,8 +556,8 @@ zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear_mask)
* returns: 0 - initiated action successfully
* <0 - failed to initiate action
*/
-static int
-zfcp_erp_port_reopen_internal(struct zfcp_port *port, int clear_mask)
+static int zfcp_erp_port_reopen_internal(struct zfcp_port *port, int clear_mask,
+ u8 id, u64 ref)
{
int retval;
struct zfcp_adapter *adapter = port->adapter;
@@ -578,7 +583,7 @@ zfcp_erp_port_reopen_internal(struct zfcp_port *port, int clear_mask)
}
retval = zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_PORT,
- port->adapter, port, NULL);
+ port->adapter, port, NULL, id, ref);
out:
return retval;
@@ -594,8 +599,7 @@ zfcp_erp_port_reopen_internal(struct zfcp_port *port, int clear_mask)
* correct locking. An error recovery task is initiated to do the reopen.
* To wait for the completion of the reopen zfcp_erp_wait should be used.
*/
-int
-zfcp_erp_port_reopen(struct zfcp_port *port, int clear_mask)
+int zfcp_erp_port_reopen(struct zfcp_port *port, int clear_mask, u8 id, u64 ref)
{
int retval;
unsigned long flags;
@@ -603,7 +607,7 @@ zfcp_erp_port_reopen(struct zfcp_port *port, int clear_mask)
read_lock_irqsave(&zfcp_data.config_lock, flags);
write_lock(&adapter->erp_lock);
- retval = zfcp_erp_port_reopen_internal(port, clear_mask);
+ retval = zfcp_erp_port_reopen_internal(port, clear_mask, id, ref);
write_unlock(&adapter->erp_lock);
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
@@ -620,8 +624,8 @@ zfcp_erp_port_reopen(struct zfcp_port *port, int clear_mask)
* returns: 0 - initiated action successfully
* <0 - failed to initiate action
*/
-static int
-zfcp_erp_unit_reopen_internal(struct zfcp_unit *unit, int clear_mask)
+static int zfcp_erp_unit_reopen_internal(struct zfcp_unit *unit, int clear_mask,
+ u8 id, u64 ref)
{
int retval;
struct zfcp_adapter *adapter = unit->port->adapter;
@@ -647,7 +651,7 @@ zfcp_erp_unit_reopen_internal(struct zfcp_unit *unit, int clear_mask)
}
retval = zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_UNIT,
- unit->port->adapter, unit->port, unit);
+ adapter, unit->port, unit, id, ref);
out:
return retval;
}
@@ -662,8 +666,7 @@ zfcp_erp_unit_reopen_internal(struct zfcp_unit *unit, int clear_mask)
* locking. An error recovery task is initiated to do the reopen.
* To wait for the completion of the reopen zfcp_erp_wait should be used.
*/
-int
-zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear_mask)
+int zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear_mask, u8 id, u64 ref)
{
int retval;
unsigned long flags;
@@ -675,7 +678,7 @@ zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear_mask)
read_lock_irqsave(&zfcp_data.config_lock, flags);
write_lock(&adapter->erp_lock);
- retval = zfcp_erp_unit_reopen_internal(unit, clear_mask);
+ retval = zfcp_erp_unit_reopen_internal(unit, clear_mask, id, ref);
write_unlock(&adapter->erp_lock);
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
@@ -1215,7 +1218,7 @@ zfcp_erp_strategy(struct zfcp_erp_action *erp_action)
"restarting I/O on adapter %s "
"to free mempool\n",
zfcp_get_busid_by_adapter(adapter));
- zfcp_erp_adapter_reopen_internal(adapter, 0);
+ zfcp_erp_adapter_reopen_internal(adapter, 0, 66, 0);
} else {
debug_text_event(adapter->erp_dbf, 2, "a_st_memw");
retval = zfcp_erp_strategy_memwait(erp_action);
@@ -1499,7 +1502,9 @@ zfcp_erp_strategy_statechange(int action,
case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
if (zfcp_erp_strategy_statechange_detected(&adapter->status,
status)) {
- zfcp_erp_adapter_reopen_internal(adapter, ZFCP_STATUS_COMMON_ERP_FAILED);
+ zfcp_erp_adapter_reopen_internal(adapter,
+ ZFCP_STATUS_COMMON_ERP_FAILED,
+ 67, 0);
retval = ZFCP_ERP_EXIT;
}
break;
@@ -1508,7 +1513,9 @@ zfcp_erp_strategy_statechange(int action,
case ZFCP_ERP_ACTION_REOPEN_PORT:
if (zfcp_erp_strategy_statechange_detected(&port->status,
status)) {
- zfcp_erp_port_reopen_internal(port, ZFCP_STATUS_COMMON_ERP_FAILED);
+ zfcp_erp_port_reopen_internal(port,
+ ZFCP_STATUS_COMMON_ERP_FAILED,
+ 68, 0);
retval = ZFCP_ERP_EXIT;
}
break;
@@ -1516,7 +1523,9 @@ zfcp_erp_strategy_statechange(int action,
case ZFCP_ERP_ACTION_REOPEN_UNIT:
if (zfcp_erp_strategy_statechange_detected(&unit->status,
status)) {
- zfcp_erp_unit_reopen_internal(unit, ZFCP_STATUS_COMMON_ERP_FAILED);
+ zfcp_erp_unit_reopen_internal(unit,
+ ZFCP_STATUS_COMMON_ERP_FAILED,
+ 69, 0);
retval = ZFCP_ERP_EXIT;
}
break;
@@ -1700,29 +1709,29 @@ zfcp_erp_strategy_followup_actions(int action,
case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
if (status == ZFCP_ERP_SUCCEEDED)
- zfcp_erp_port_reopen_all_internal(adapter, 0);
+ zfcp_erp_port_reopen_all_internal(adapter, 0, 70, 0);
else
- zfcp_erp_adapter_reopen_internal(adapter, 0);
+ zfcp_erp_adapter_reopen_internal(adapter, 0, 71, 0);
break;
case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
if (status == ZFCP_ERP_SUCCEEDED)
- zfcp_erp_port_reopen_internal(port, 0);
+ zfcp_erp_port_reopen_internal(port, 0, 72, 0);
else
- zfcp_erp_adapter_reopen_internal(adapter, 0);
+ zfcp_erp_adapter_reopen_internal(adapter, 0, 73, 0);
break;
case ZFCP_ERP_ACTION_REOPEN_PORT:
if (status == ZFCP_ERP_SUCCEEDED)
- zfcp_erp_unit_reopen_all_internal(port, 0);
+ zfcp_erp_unit_reopen_all_internal(port, 0, 74, 0);
else
- zfcp_erp_port_forced_reopen_internal(port, 0);
+ zfcp_erp_port_forced_reopen_internal(port, 0, 75, 0);
break;
case ZFCP_ERP_ACTION_REOPEN_UNIT:
/* Nothing to do if status == ZFCP_ERP_SUCCEEDED */
if (status != ZFCP_ERP_SUCCEEDED)
- zfcp_erp_port_reopen_internal(unit->port, 0);
+ zfcp_erp_port_reopen_internal(unit->port, 0, 76, 0);
break;
}
@@ -1863,30 +1872,32 @@ void zfcp_erp_modify_unit_status(struct zfcp_unit *unit, u8 id, u64 ref,
* returns: 0 - initiated action successfully
* <0 - failed to initiate action
*/
-int
-zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter, int clear_mask)
+int zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter, int clear_mask,
+ u8 id, u64 ref)
{
int retval;
unsigned long flags;
read_lock_irqsave(&zfcp_data.config_lock, flags);
write_lock(&adapter->erp_lock);
- retval = zfcp_erp_port_reopen_all_internal(adapter, clear_mask);
+ retval = zfcp_erp_port_reopen_all_internal(adapter, clear_mask, id,
+ ref);
write_unlock(&adapter->erp_lock);
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
return retval;
}
-static int
-zfcp_erp_port_reopen_all_internal(struct zfcp_adapter *adapter, int clear_mask)
+static int zfcp_erp_port_reopen_all_internal(struct zfcp_adapter *adapter,
+ int clear_mask, u8 id, u64 ref)
{
int retval = 0;
struct zfcp_port *port;
list_for_each_entry(port, &adapter->port_list_head, list)
if (!atomic_test_mask(ZFCP_STATUS_PORT_WKA, &port->status))
- zfcp_erp_port_reopen_internal(port, clear_mask);
+ zfcp_erp_port_reopen_internal(port, clear_mask, id,
+ ref);
return retval;
}
@@ -1898,14 +1909,14 @@ zfcp_erp_port_reopen_all_internal(struct zfcp_adapter *adapter, int clear_mask)
*
* returns: FIXME
*/
-static int
-zfcp_erp_unit_reopen_all_internal(struct zfcp_port *port, int clear_mask)
+static int zfcp_erp_unit_reopen_all_internal(struct zfcp_port *port,
+ int clear_mask, u8 id, u64 ref)
{
int retval = 0;
struct zfcp_unit *unit;
list_for_each_entry(unit, &port->unit_list_head, list)
- zfcp_erp_unit_reopen_internal(unit, clear_mask);
+ zfcp_erp_unit_reopen_internal(unit, clear_mask, id, ref);
return retval;
}
@@ -2466,8 +2477,8 @@ zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *erp_action)
/* nameserver port may live again */
atomic_set_mask(ZFCP_STATUS_COMMON_RUNNING,
&adapter->nameserver_port->status);
- if (zfcp_erp_port_reopen(adapter->nameserver_port, 0)
- >= 0) {
+ if (zfcp_erp_port_reopen(adapter->nameserver_port, 0,
+ 77, (u64)erp_action) >= 0) {
erp_action->step =
ZFCP_ERP_STEP_NAMESERVER_OPEN;
retval = ZFCP_ERP_CONTINUES;
@@ -2963,14 +2974,12 @@ void zfcp_erp_start_timer(struct zfcp_fsf_req *fsf_req)
*
* returns:
*/
-static int
-zfcp_erp_action_enqueue(int action,
- struct zfcp_adapter *adapter,
- struct zfcp_port *port, struct zfcp_unit *unit)
+static int zfcp_erp_action_enqueue(int want, struct zfcp_adapter *adapter,
+ struct zfcp_port *port,
+ struct zfcp_unit *unit, u8 id, u64 ref)
{
- int retval = 1;
+ int retval = 1, need = want;
struct zfcp_erp_action *erp_action = NULL;
- int stronger_action = 0;
u32 status = 0;
/*
@@ -2989,9 +2998,9 @@ zfcp_erp_action_enqueue(int action,
&adapter->status))
return -EIO;
- debug_event(adapter->erp_dbf, 4, &action, sizeof (int));
+ debug_event(adapter->erp_dbf, 4, &want, sizeof (int));
/* check whether we really need this */
- switch (action) {
+ switch (want) {
case ZFCP_ERP_ACTION_REOPEN_UNIT:
if (atomic_test_mask
(ZFCP_STATUS_COMMON_ERP_INUSE, &unit->status)) {
@@ -3009,10 +3018,8 @@ zfcp_erp_action_enqueue(int action,
goto out;
}
if (!atomic_test_mask
- (ZFCP_STATUS_COMMON_UNBLOCKED, &port->status)) {
- stronger_action = ZFCP_ERP_ACTION_REOPEN_PORT;
- unit = NULL;
- }
+ (ZFCP_STATUS_COMMON_UNBLOCKED, &port->status))
+ need = ZFCP_ERP_ACTION_REOPEN_PORT;
/* fall through !!! */
case ZFCP_ERP_ACTION_REOPEN_PORT:
@@ -3032,7 +3039,7 @@ zfcp_erp_action_enqueue(int action,
ZFCP_ERP_ACTION_REOPEN_PORT_FORCED) {
ZFCP_LOG_INFO("dropped erp action %i (port "
"0x%016Lx, action in use: %i)\n",
- action, port->wwpn,
+ want, port->wwpn,
port->erp_action.action);
debug_text_event(adapter->erp_dbf, 4,
"pf_actenq_drp");
@@ -3050,10 +3057,8 @@ zfcp_erp_action_enqueue(int action,
goto out;
}
if (!atomic_test_mask
- (ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->status)) {
- stronger_action = ZFCP_ERP_ACTION_REOPEN_ADAPTER;
- port = NULL;
- }
+ (ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->status))
+ need = ZFCP_ERP_ACTION_REOPEN_ADAPTER;
/* fall through !!! */
case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
@@ -3066,30 +3071,28 @@ zfcp_erp_action_enqueue(int action,
default:
debug_text_exception(adapter->erp_dbf, 1, "a_actenq_bug");
- debug_event(adapter->erp_dbf, 1, &action, sizeof (int));
+ debug_event(adapter->erp_dbf, 1, &want, sizeof (int));
ZFCP_LOG_NORMAL("bug: unknown erp action requested "
"on adapter %s (action=%d)\n",
- zfcp_get_busid_by_adapter(adapter), action);
+ zfcp_get_busid_by_adapter(adapter), want);
goto out;
}
/* check whether we need something stronger first */
- if (stronger_action) {
+ if (need) {
debug_text_event(adapter->erp_dbf, 4, "a_actenq_str");
- debug_event(adapter->erp_dbf, 4, &stronger_action,
+ debug_event(adapter->erp_dbf, 4, &need,
sizeof (int));
ZFCP_LOG_DEBUG("stronger erp action %d needed before "
"erp action %d on adapter %s\n",
- stronger_action, action,
- zfcp_get_busid_by_adapter(adapter));
- action = stronger_action;
+ need, want, zfcp_get_busid_by_adapter(adapter));
}
/* mark adapter to have some error recovery pending */
atomic_set_mask(ZFCP_STATUS_ADAPTER_ERP_PENDING, &adapter->status);
/* setup error recovery action */
- switch (action) {
+ switch (need) {
case ZFCP_ERP_ACTION_REOPEN_UNIT:
zfcp_unit_get(unit);
@@ -3128,7 +3131,7 @@ zfcp_erp_action_enqueue(int action,
erp_action->adapter = adapter;
erp_action->port = port;
erp_action->unit = unit;
- erp_action->action = action;
+ erp_action->action = need;
erp_action->status = status;
++adapter->erp_total_count;
@@ -3139,6 +3142,8 @@ zfcp_erp_action_enqueue(int action,
zfcp_rec_dbf_event_thread(1, adapter, 0);
retval = 0;
out:
+ zfcp_rec_dbf_event_trigger(id, ref, want, need, (u64)erp_action,
+ adapter, port, unit);
return retval;
}
@@ -3322,7 +3327,7 @@ void zfcp_erp_port_boxed(struct zfcp_port *port, u8 id, u64 ref)
zfcp_erp_modify_port_status(port, id, ref,
ZFCP_STATUS_COMMON_ACCESS_BOXED, ZFCP_SET);
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
- zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED);
+ zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, id, ref);
}
void zfcp_erp_unit_boxed(struct zfcp_unit *unit, u8 id, u64 ref)
@@ -3333,7 +3338,7 @@ void zfcp_erp_unit_boxed(struct zfcp_unit *unit, u8 id, u64 ref)
debug_event(adapter->erp_dbf, 3, &unit->fcp_lun, sizeof(fcp_lun_t));
zfcp_erp_modify_unit_status(unit, id, ref,
ZFCP_STATUS_COMMON_ACCESS_BOXED, ZFCP_SET);
- zfcp_erp_unit_reopen(unit, ZFCP_STATUS_COMMON_ERP_FAILED);
+ zfcp_erp_unit_reopen(unit, ZFCP_STATUS_COMMON_ERP_FAILED, id, ref);
}
void zfcp_erp_port_access_denied(struct zfcp_port *port, u8 id, u64 ref)
@@ -3361,8 +3366,8 @@ void zfcp_erp_unit_access_denied(struct zfcp_unit *unit, u8 id, u64 ref)
ZFCP_STATUS_COMMON_ACCESS_DENIED, ZFCP_SET);
}
-void
-zfcp_erp_adapter_access_changed(struct zfcp_adapter *adapter)
+void zfcp_erp_adapter_access_changed(struct zfcp_adapter *adapter, u8 id,
+ u64 ref)
{
struct zfcp_port *port;
unsigned long flags;
@@ -3375,15 +3380,14 @@ zfcp_erp_adapter_access_changed(struct zfcp_adapter *adapter)
read_lock_irqsave(&zfcp_data.config_lock, flags);
if (adapter->nameserver_port)
- zfcp_erp_port_access_changed(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);
+ zfcp_erp_port_access_changed(port, id, ref);
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
}
-void
-zfcp_erp_port_access_changed(struct zfcp_port *port)
+void zfcp_erp_port_access_changed(struct zfcp_port *port, u8 id, u64 ref)
{
struct zfcp_adapter *adapter = port->adapter;
struct zfcp_unit *unit;
@@ -3397,21 +3401,20 @@ zfcp_erp_port_access_changed(struct zfcp_port *port)
&port->status)) {
if (!atomic_test_mask(ZFCP_STATUS_PORT_WKA, &port->status))
list_for_each_entry(unit, &port->unit_list_head, list)
- zfcp_erp_unit_access_changed(unit);
+ zfcp_erp_unit_access_changed(unit, id, ref);
return;
}
ZFCP_LOG_NORMAL("reopen of port 0x%016Lx on adapter %s "
"(due to ACT update)\n",
port->wwpn, zfcp_get_busid_by_adapter(adapter));
- if (zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED) != 0)
+ if (zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, id, ref))
ZFCP_LOG_NORMAL("failed reopen of port"
"(adapter %s, wwpn=0x%016Lx)\n",
zfcp_get_busid_by_adapter(adapter), port->wwpn);
}
-void
-zfcp_erp_unit_access_changed(struct zfcp_unit *unit)
+void zfcp_erp_unit_access_changed(struct zfcp_unit *unit, u8 id, u64 ref)
{
struct zfcp_adapter *adapter = unit->port->adapter;
@@ -3428,7 +3431,7 @@ zfcp_erp_unit_access_changed(struct zfcp_unit *unit)
" on adapter %s (due to ACT update)\n",
unit->fcp_lun, unit->port->wwpn,
zfcp_get_busid_by_adapter(adapter));
- if (zfcp_erp_unit_reopen(unit, ZFCP_STATUS_COMMON_ERP_FAILED) != 0)
+ if (zfcp_erp_unit_reopen(unit, ZFCP_STATUS_COMMON_ERP_FAILED, id, ref))
ZFCP_LOG_NORMAL("failed reopen of unit (adapter %s, "
"wwpn=0x%016Lx, fcp_lun=0x%016Lx)\n",
zfcp_get_busid_by_adapter(adapter),