*
* Debug traces for zfcp.
*
- * Copyright IBM Corporation 2002, 2008
+ * Copyright IBM Corporation 2002, 2009
*/
#define KMSG_COMPONENT "zfcp"
#include <linux/ctype.h>
#include <asm/debug.h>
+#include "zfcp_dbf.h"
#include "zfcp_ext.h"
static u32 dbfsize = 4;
void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *fsf_req)
{
struct zfcp_adapter *adapter = fsf_req->adapter;
+ struct zfcp_dbf *dbf = adapter->dbf;
struct fsf_qtcb *qtcb = fsf_req->qtcb;
union fsf_prot_status_qual *prot_status_qual =
&qtcb->prefix.prot_status_qual;
struct zfcp_port *port;
struct zfcp_unit *unit;
struct zfcp_send_els *send_els;
- struct zfcp_hba_dbf_record *rec = &adapter->hba_dbf_buf;
+ struct zfcp_hba_dbf_record *rec = &dbf->hba_dbf_buf;
struct zfcp_hba_dbf_record_response *response = &rec->u.response;
int level;
unsigned long flags;
- spin_lock_irqsave(&adapter->hba_dbf_lock, flags);
+ spin_lock_irqsave(&dbf->hba_dbf_lock, flags);
memset(rec, 0, sizeof(*rec));
strncpy(rec->tag, "resp", ZFCP_DBF_TAG_SIZE);
break;
}
- debug_event(adapter->hba_dbf, level, rec, sizeof(*rec));
+ debug_event(dbf->hba_dbf, level, rec, sizeof(*rec));
/* have fcp channel microcode fixed to use as little as possible */
if (fsf_req->fsf_command != FSF_QTCB_FCP_CMND) {
char *buf = (char *)qtcb + qtcb->header.log_start;
int len = qtcb->header.log_length;
for (; len && !buf[len - 1]; len--);
- zfcp_dbf_hexdump(adapter->hba_dbf, rec, sizeof(*rec), level,
- buf, len);
+ zfcp_dbf_hexdump(dbf->hba_dbf, rec, sizeof(*rec), level, buf,
+ len);
}
- spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
+ spin_unlock_irqrestore(&dbf->hba_dbf_lock, flags);
}
/**
void zfcp_hba_dbf_event_fsf_unsol(const char *tag, struct zfcp_adapter *adapter,
struct fsf_status_read_buffer *status_buffer)
{
- struct zfcp_hba_dbf_record *rec = &adapter->hba_dbf_buf;
+ struct zfcp_dbf *dbf = adapter->dbf;
+ struct zfcp_hba_dbf_record *rec = &dbf->hba_dbf_buf;
unsigned long flags;
- spin_lock_irqsave(&adapter->hba_dbf_lock, flags);
+ spin_lock_irqsave(&dbf->hba_dbf_lock, flags);
memset(rec, 0, sizeof(*rec));
strncpy(rec->tag, "stat", ZFCP_DBF_TAG_SIZE);
strncpy(rec->tag2, tag, ZFCP_DBF_TAG_SIZE);
&status_buffer->payload, rec->u.status.payload_size);
}
- debug_event(adapter->hba_dbf, 2, rec, sizeof(*rec));
- spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
+ debug_event(dbf->hba_dbf, 2, rec, sizeof(*rec));
+ spin_unlock_irqrestore(&dbf->hba_dbf_lock, flags);
}
/**
unsigned int qdio_error, int sbal_index,
int sbal_count)
{
- struct zfcp_hba_dbf_record *r = &adapter->hba_dbf_buf;
+ struct zfcp_dbf *dbf = adapter->dbf;
+ struct zfcp_hba_dbf_record *r = &dbf->hba_dbf_buf;
unsigned long flags;
- spin_lock_irqsave(&adapter->hba_dbf_lock, flags);
+ spin_lock_irqsave(&dbf->hba_dbf_lock, flags);
memset(r, 0, sizeof(*r));
strncpy(r->tag, "qdio", ZFCP_DBF_TAG_SIZE);
r->u.qdio.qdio_error = qdio_error;
r->u.qdio.sbal_index = sbal_index;
r->u.qdio.sbal_count = sbal_count;
- debug_event(adapter->hba_dbf, 0, r, sizeof(*r));
- spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
+ debug_event(dbf->hba_dbf, 0, r, sizeof(*r));
+ spin_unlock_irqrestore(&dbf->hba_dbf_lock, flags);
}
/**
void zfcp_hba_dbf_event_berr(struct zfcp_adapter *adapter,
struct zfcp_fsf_req *req)
{
- struct zfcp_hba_dbf_record *r = &adapter->hba_dbf_buf;
+ struct zfcp_dbf *dbf = adapter->dbf;
+ struct zfcp_hba_dbf_record *r = &dbf->hba_dbf_buf;
struct fsf_status_read_buffer *sr_buf = req->data;
struct fsf_bit_error_payload *err = &sr_buf->payload.bit_error;
unsigned long flags;
- spin_lock_irqsave(&adapter->hba_dbf_lock, flags);
+ spin_lock_irqsave(&dbf->hba_dbf_lock, flags);
memset(r, 0, sizeof(*r));
strncpy(r->tag, "berr", ZFCP_DBF_TAG_SIZE);
memcpy(&r->u.berr, err, sizeof(struct fsf_bit_error_payload));
- debug_event(adapter->hba_dbf, 0, r, sizeof(*r));
- spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
+ debug_event(dbf->hba_dbf, 0, r, sizeof(*r));
+ spin_unlock_irqrestore(&dbf->hba_dbf_lock, flags);
}
static void zfcp_hba_dbf_view_response(char **p,
struct zfcp_hba_dbf_record_response *r)
*/
void zfcp_rec_dbf_event_thread(char *id2, struct zfcp_adapter *adapter)
{
- struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
+ struct zfcp_dbf *dbf = adapter->dbf;
+ struct zfcp_rec_dbf_record *r = &dbf->rec_dbf_buf;
unsigned long flags = 0;
struct list_head *entry;
unsigned ready = 0, running = 0, total;
running++;
total = adapter->erp_total_count;
- spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
+ spin_lock_irqsave(&dbf->rec_dbf_lock, flags);
memset(r, 0, sizeof(*r));
r->id = ZFCP_REC_DBF_ID_THREAD;
memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
r->u.thread.total = total;
r->u.thread.ready = ready;
r->u.thread.running = running;
- debug_event(adapter->rec_dbf, 6, r, sizeof(*r));
- spin_unlock_irqrestore(&adapter->rec_dbf_lock, flags);
+ debug_event(dbf->rec_dbf, 6, r, sizeof(*r));
+ spin_unlock_irqrestore(&dbf->rec_dbf_lock, flags);
}
/**
atomic_t *status, atomic_t *erp_count,
u64 wwpn, u32 d_id, u64 fcp_lun)
{
- struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
+ struct zfcp_dbf *dbf = adapter->dbf;
+ struct zfcp_rec_dbf_record *r = &dbf->rec_dbf_buf;
unsigned long flags;
- spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
+ spin_lock_irqsave(&dbf->rec_dbf_lock, flags);
memset(r, 0, sizeof(*r));
r->id = ZFCP_REC_DBF_ID_TARGET;
memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
r->u.target.d_id = d_id;
r->u.target.fcp_lun = fcp_lun;
r->u.target.erp_count = atomic_read(erp_count);
- debug_event(adapter->rec_dbf, 3, r, sizeof(*r));
- spin_unlock_irqrestore(&adapter->rec_dbf_lock, flags);
+ debug_event(dbf->rec_dbf, 3, r, sizeof(*r));
+ spin_unlock_irqrestore(&dbf->rec_dbf_lock, flags);
}
/**
void *action, struct zfcp_adapter *adapter,
struct zfcp_port *port, struct zfcp_unit *unit)
{
- struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
+ struct zfcp_dbf *dbf = adapter->dbf;
+ struct zfcp_rec_dbf_record *r = &dbf->rec_dbf_buf;
unsigned long flags;
- spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
+ spin_lock_irqsave(&dbf->rec_dbf_lock, flags);
memset(r, 0, sizeof(*r));
r->id = ZFCP_REC_DBF_ID_TRIGGER;
memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
r->u.trigger.us = atomic_read(&unit->status);
r->u.trigger.fcp_lun = unit->fcp_lun;
}
- debug_event(adapter->rec_dbf, action ? 1 : 4, r, sizeof(*r));
- spin_unlock_irqrestore(&adapter->rec_dbf_lock, flags);
+ debug_event(dbf->rec_dbf, action ? 1 : 4, r, sizeof(*r));
+ spin_unlock_irqrestore(&dbf->rec_dbf_lock, flags);
}
/**
void zfcp_rec_dbf_event_action(char *id2, struct zfcp_erp_action *erp_action)
{
struct zfcp_adapter *adapter = erp_action->adapter;
- struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
+ struct zfcp_dbf *dbf = adapter->dbf;
+ struct zfcp_rec_dbf_record *r = &dbf->rec_dbf_buf;
unsigned long flags;
- spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
+ spin_lock_irqsave(&dbf->rec_dbf_lock, flags);
memset(r, 0, sizeof(*r));
r->id = ZFCP_REC_DBF_ID_ACTION;
memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
r->u.action.status = erp_action->status;
r->u.action.step = erp_action->step;
r->u.action.fsf_req = (unsigned long)erp_action->fsf_req;
- debug_event(adapter->rec_dbf, 5, r, sizeof(*r));
- spin_unlock_irqrestore(&adapter->rec_dbf_lock, flags);
+ debug_event(dbf->rec_dbf, 5, r, sizeof(*r));
+ spin_unlock_irqrestore(&dbf->rec_dbf_lock, flags);
}
/**
struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data;
struct zfcp_wka_port *wka_port = ct->wka_port;
struct zfcp_adapter *adapter = wka_port->adapter;
+ struct zfcp_dbf *dbf = adapter->dbf;
struct ct_hdr *hdr = sg_virt(ct->req);
- struct zfcp_san_dbf_record *r = &adapter->san_dbf_buf;
+ struct zfcp_san_dbf_record *r = &dbf->san_dbf_buf;
struct zfcp_san_dbf_record_ct_request *oct = &r->u.ct_req;
int level = 3;
unsigned long flags;
- spin_lock_irqsave(&adapter->san_dbf_lock, flags);
+ spin_lock_irqsave(&dbf->san_dbf_lock, flags);
memset(r, 0, sizeof(*r));
strncpy(r->tag, "octc", ZFCP_DBF_TAG_SIZE);
r->fsf_reqid = fsf_req->req_id;
oct->max_res_size = hdr->max_res_size;
oct->len = min((int)ct->req->length - (int)sizeof(struct ct_hdr),
ZFCP_DBF_SAN_MAX_PAYLOAD);
- debug_event(adapter->san_dbf, level, r, sizeof(*r));
- zfcp_dbf_hexdump(adapter->san_dbf, r, sizeof(*r), level,
+ debug_event(dbf->san_dbf, level, r, sizeof(*r));
+ zfcp_dbf_hexdump(dbf->san_dbf, r, sizeof(*r), level,
(void *)hdr + sizeof(struct ct_hdr), oct->len);
- spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
+ spin_unlock_irqrestore(&dbf->san_dbf_lock, flags);
}
/**
struct zfcp_wka_port *wka_port = ct->wka_port;
struct zfcp_adapter *adapter = wka_port->adapter;
struct ct_hdr *hdr = sg_virt(ct->resp);
- struct zfcp_san_dbf_record *r = &adapter->san_dbf_buf;
+ struct zfcp_dbf *dbf = adapter->dbf;
+ struct zfcp_san_dbf_record *r = &dbf->san_dbf_buf;
struct zfcp_san_dbf_record_ct_response *rct = &r->u.ct_resp;
int level = 3;
unsigned long flags;
- spin_lock_irqsave(&adapter->san_dbf_lock, flags);
+ spin_lock_irqsave(&dbf->san_dbf_lock, flags);
memset(r, 0, sizeof(*r));
strncpy(r->tag, "rctc", ZFCP_DBF_TAG_SIZE);
r->fsf_reqid = fsf_req->req_id;
rct->max_res_size = hdr->max_res_size;
rct->len = min((int)ct->resp->length - (int)sizeof(struct ct_hdr),
ZFCP_DBF_SAN_MAX_PAYLOAD);
- debug_event(adapter->san_dbf, level, r, sizeof(*r));
- zfcp_dbf_hexdump(adapter->san_dbf, r, sizeof(*r), level,
+ debug_event(dbf->san_dbf, level, r, sizeof(*r));
+ zfcp_dbf_hexdump(dbf->san_dbf, r, sizeof(*r), level,
(void *)hdr + sizeof(struct ct_hdr), rct->len);
- spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
+ spin_unlock_irqrestore(&dbf->san_dbf_lock, flags);
}
static void zfcp_san_dbf_event_els(const char *tag, int level,
int buflen)
{
struct zfcp_adapter *adapter = fsf_req->adapter;
- struct zfcp_san_dbf_record *rec = &adapter->san_dbf_buf;
+ struct zfcp_dbf *dbf = adapter->dbf;
+ struct zfcp_san_dbf_record *rec = &dbf->san_dbf_buf;
unsigned long flags;
- spin_lock_irqsave(&adapter->san_dbf_lock, flags);
+ spin_lock_irqsave(&dbf->san_dbf_lock, flags);
memset(rec, 0, sizeof(*rec));
strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
rec->fsf_reqid = fsf_req->req_id;
rec->s_id = s_id;
rec->d_id = d_id;
rec->u.els.ls_code = ls_code;
- debug_event(adapter->san_dbf, level, rec, sizeof(*rec));
- zfcp_dbf_hexdump(adapter->san_dbf, rec, sizeof(*rec), level,
+ debug_event(dbf->san_dbf, level, rec, sizeof(*rec));
+ zfcp_dbf_hexdump(dbf->san_dbf, rec, sizeof(*rec), level,
buffer, min(buflen, ZFCP_DBF_SAN_MAX_PAYLOAD));
- spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
+ spin_unlock_irqrestore(&dbf->san_dbf_lock, flags);
}
/**
struct zfcp_fsf_req *fsf_req,
unsigned long old_req_id)
{
- struct zfcp_scsi_dbf_record *rec = &adapter->scsi_dbf_buf;
+ struct zfcp_dbf *dbf = adapter->dbf;
+ struct zfcp_scsi_dbf_record *rec = &dbf->scsi_dbf_buf;
struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)rec;
unsigned long flags;
struct fcp_rsp_iu *fcp_rsp;
char *fcp_rsp_info = NULL, *fcp_sns_info = NULL;
int offset = 0, buflen = 0;
- spin_lock_irqsave(&adapter->scsi_dbf_lock, flags);
+ spin_lock_irqsave(&dbf->scsi_dbf_lock, flags);
do {
memset(rec, 0, sizeof(*rec));
if (offset == 0) {
memcpy(dump->data, fcp_sns_info + offset, dump->size);
offset += dump->size;
}
- debug_event(adapter->scsi_dbf, level, rec, sizeof(*rec));
+ debug_event(dbf->scsi_dbf, level, rec, sizeof(*rec));
} while (offset < buflen);
- spin_unlock_irqrestore(&adapter->scsi_dbf_lock, flags);
+ spin_unlock_irqrestore(&dbf->scsi_dbf_lock, flags);
}
/**
NULL
};
+static debug_info_t *zfcp_dbf_reg(const char *name, int level,
+ struct debug_view *view, int size)
+{
+ struct debug_info *d;
+
+ d = debug_register(name, dbfsize, level, size);
+ if (!d)
+ return NULL;
+
+ debug_register_view(d, &debug_hex_ascii_view);
+ debug_register_view(d, view);
+ debug_set_level(d, level);
+
+ return d;
+}
+
/**
* zfcp_adapter_debug_register - registers debug feature for an adapter
* @adapter: pointer to adapter for which debug features should be registered
int zfcp_adapter_debug_register(struct zfcp_adapter *adapter)
{
char dbf_name[DEBUG_MAX_NAME_LEN];
+ struct zfcp_dbf *dbf;
+
+ dbf = kmalloc(sizeof(struct zfcp_dbf), GFP_KERNEL);
+ if (!dbf)
+ return -ENOMEM;
+
+ spin_lock_init(&dbf->hba_dbf_lock);
+ spin_lock_init(&dbf->san_dbf_lock);
+ spin_lock_init(&dbf->scsi_dbf_lock);
+ spin_lock_init(&dbf->rec_dbf_lock);
/* debug feature area which records recovery activity */
sprintf(dbf_name, "zfcp_%s_rec", dev_name(&adapter->ccw_device->dev));
- adapter->rec_dbf = debug_register(dbf_name, dbfsize, 1,
- sizeof(struct zfcp_rec_dbf_record));
- if (!adapter->rec_dbf)
- goto failed;
- debug_register_view(adapter->rec_dbf, &debug_hex_ascii_view);
- debug_register_view(adapter->rec_dbf, &zfcp_rec_dbf_view);
- debug_set_level(adapter->rec_dbf, 3);
+ dbf->rec_dbf = zfcp_dbf_reg(dbf_name, 3, &zfcp_rec_dbf_view,
+ sizeof(struct zfcp_rec_dbf_record));
+ if (!dbf->rec_dbf)
+ goto fail_rec;
/* debug feature area which records HBA (FSF and QDIO) conditions */
sprintf(dbf_name, "zfcp_%s_hba", dev_name(&adapter->ccw_device->dev));
- adapter->hba_dbf = debug_register(dbf_name, dbfsize, 1,
- sizeof(struct zfcp_hba_dbf_record));
- if (!adapter->hba_dbf)
- goto failed;
- debug_register_view(adapter->hba_dbf, &debug_hex_ascii_view);
- debug_register_view(adapter->hba_dbf, &zfcp_hba_dbf_view);
- debug_set_level(adapter->hba_dbf, 3);
+ dbf->hba_dbf = zfcp_dbf_reg(dbf_name, 3, &zfcp_hba_dbf_view,
+ sizeof(struct zfcp_hba_dbf_record));
+ if (!dbf->hba_dbf)
+ goto fail_hba;
/* debug feature area which records SAN command failures and recovery */
sprintf(dbf_name, "zfcp_%s_san", dev_name(&adapter->ccw_device->dev));
- adapter->san_dbf = debug_register(dbf_name, dbfsize, 1,
- sizeof(struct zfcp_san_dbf_record));
- if (!adapter->san_dbf)
- goto failed;
- debug_register_view(adapter->san_dbf, &debug_hex_ascii_view);
- debug_register_view(adapter->san_dbf, &zfcp_san_dbf_view);
- debug_set_level(adapter->san_dbf, 6);
+ dbf->san_dbf = zfcp_dbf_reg(dbf_name, 6, &zfcp_san_dbf_view,
+ sizeof(struct zfcp_san_dbf_record));
+ if (!dbf->san_dbf)
+ goto fail_san;
/* debug feature area which records SCSI command failures and recovery */
sprintf(dbf_name, "zfcp_%s_scsi", dev_name(&adapter->ccw_device->dev));
- adapter->scsi_dbf = debug_register(dbf_name, dbfsize, 1,
- sizeof(struct zfcp_scsi_dbf_record));
- if (!adapter->scsi_dbf)
- goto failed;
- debug_register_view(adapter->scsi_dbf, &debug_hex_ascii_view);
- debug_register_view(adapter->scsi_dbf, &zfcp_scsi_dbf_view);
- debug_set_level(adapter->scsi_dbf, 3);
+ dbf->scsi_dbf = zfcp_dbf_reg(dbf_name, 3, &zfcp_scsi_dbf_view,
+ sizeof(struct zfcp_scsi_dbf_record));
+ if (!dbf->scsi_dbf)
+ goto fail_scsi;
+ adapter->dbf = dbf;
return 0;
- failed:
- zfcp_adapter_debug_unregister(adapter);
-
+fail_scsi:
+ debug_unregister(dbf->san_dbf);
+fail_san:
+ debug_unregister(dbf->hba_dbf);
+fail_hba:
+ debug_unregister(dbf->rec_dbf);
+fail_rec:
+ kfree(dbf);
return -ENOMEM;
}
*/
void zfcp_adapter_debug_unregister(struct zfcp_adapter *adapter)
{
- debug_unregister(adapter->scsi_dbf);
- debug_unregister(adapter->san_dbf);
- debug_unregister(adapter->hba_dbf);
- debug_unregister(adapter->rec_dbf);
- adapter->scsi_dbf = NULL;
- adapter->san_dbf = NULL;
- adapter->hba_dbf = NULL;
- adapter->rec_dbf = NULL;
+ debug_unregister(adapter->dbf->scsi_dbf);
+ debug_unregister(adapter->dbf->san_dbf);
+ debug_unregister(adapter->dbf->hba_dbf);
+ debug_unregister(adapter->dbf->rec_dbf);
+ kfree(adapter->dbf);
+ adapter->dbf = NULL;
}
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff