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8fc5af1687
linux-next/drivers/s390/scsi/zfcp_dbf.c
Martin Peschke 8fc5af1687 [SCSI] zfcp: simplify zfcp_dbf_timestamp() 
Change zfcp_dbf_timestamp() so that it just calculates timespec from
timestamp. First step to be able to rip this code out of zfcp.
Besides, this change makes it easier to rip out old-style debug view
functions.

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>
2008-04-07 12:19:08 -05:00

1371 lines
44 KiB
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/*
* This file is part of the zfcp device driver for
* FCP adapters for IBM System z9 and zSeries.
*
* (C) Copyright IBM Corp. 2002, 2006
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/ctype.h>
#include <asm/debug.h>
#include "zfcp_ext.h"
static u32 dbfsize = 4;
module_param(dbfsize, uint, 0400);
MODULE_PARM_DESC(dbfsize,
"number of pages for each debug feature area (default 4)");
#define ZFCP_LOG_AREA ZFCP_LOG_AREA_OTHER
static void zfcp_dbf_hexdump(debug_info_t *dbf, void *to, int to_len,
int level, char *from, int from_len)
{
int offset;
struct zfcp_dbf_dump *dump = to;
int room = to_len - sizeof(*dump);
for (offset = 0; offset < from_len; offset += dump->size) {
memset(to, 0, to_len);
strncpy(dump->tag, "dump", ZFCP_DBF_TAG_SIZE);
dump->total_size = from_len;
dump->offset = offset;
dump->size = min(from_len - offset, room);
memcpy(dump->data, from + offset, dump->size);
debug_event(dbf, level, dump, dump->size);
}
}
/* FIXME: this duplicate this code in s390 debug feature */
static void zfcp_dbf_timestamp(unsigned long long stck, struct timespec *time)
{
unsigned long long sec;
stck -= 0x8126d60e46000000LL - (0x3c26700LL * 1000000 * 4096);
sec = stck >> 12;
do_div(sec, 1000000);
time->tv_sec = sec;
stck -= (sec * 1000000) << 12;
time->tv_nsec = ((stck * 1000) >> 12);
}
static int zfcp_dbf_tag(char *out_buf, const char *label, const char *tag)
{
int len = 0, i;
len += sprintf(out_buf + len, "%-24s", label);
for (i = 0; i < ZFCP_DBF_TAG_SIZE; i++)
len += sprintf(out_buf + len, "%c", tag[i]);
len += sprintf(out_buf + len, "\n");
return len;
}
static int
zfcp_dbf_view(char *out_buf, const char *label, const char *format, ...)
{
va_list arg;
int len = 0;
len += sprintf(out_buf + len, "%-24s", label);
va_start(arg, format);
len += vsprintf(out_buf + len, format, arg);
va_end(arg);
len += sprintf(out_buf + len, "\n");
return len;
}
static void zfcp_dbf_outs(char **buf, const char *s1, const char *s2)
{
*buf += sprintf(*buf, "%-24s%s\n", s1, s2);
}
static void zfcp_dbf_out(char **buf, const char *s, const char *format, ...)
{
va_list arg;
*buf += sprintf(*buf, "%-24s", s);
va_start(arg, format);
*buf += vsprintf(*buf, format, arg);
va_end(arg);
*buf += sprintf(*buf, "\n");
}
static int
zfcp_dbf_view_dump(char *out_buf, const char *label,
char *buffer, int buflen, int offset, int total_size)
{
int len = 0;
if (offset == 0)
len += sprintf(out_buf + len, "%-24s ", label);
while (buflen--) {
if (offset > 0) {
if ((offset % 32) == 0)
len += sprintf(out_buf + len, "\n%-24c ", ' ');
else if ((offset % 4) == 0)
len += sprintf(out_buf + len, " ");
}
len += sprintf(out_buf + len, "%02x", *buffer++);
if (++offset == total_size) {
len += sprintf(out_buf + len, "\n");
break;
}
}
if (total_size == 0)
len += sprintf(out_buf + len, "\n");
return len;
}
static int
zfcp_dbf_view_header(debug_info_t * id, struct debug_view *view, int area,
debug_entry_t * entry, char *out_buf)
{
struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)DEBUG_DATA(entry);
int len = 0;
struct timespec t;
if (strncmp(dump->tag, "dump", ZFCP_DBF_TAG_SIZE) != 0) {
zfcp_dbf_timestamp(entry->id.stck, &t);
len += zfcp_dbf_view(out_buf + len, "timestamp", "%011lu:%06lu",
t.tv_sec, t.tv_nsec);
len += zfcp_dbf_view(out_buf + len, "cpu", "%02i",
entry->id.fields.cpuid);
} else {
len += zfcp_dbf_view_dump(out_buf + len, NULL,
dump->data,
dump->size,
dump->offset, dump->total_size);
if ((dump->offset + dump->size) == dump->total_size)
len += sprintf(out_buf + len, "\n");
}
return len;
}
void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *fsf_req)
{
struct zfcp_adapter *adapter = fsf_req->adapter;
struct fsf_qtcb *qtcb = fsf_req->qtcb;
union fsf_prot_status_qual *prot_status_qual =
&qtcb->prefix.prot_status_qual;
union fsf_status_qual *fsf_status_qual = &qtcb->header.fsf_status_qual;
struct scsi_cmnd *scsi_cmnd;
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_response *response = &rec->type.response;
int level;
unsigned long flags;
spin_lock_irqsave(&adapter->hba_dbf_lock, flags);
memset(rec, 0, sizeof(struct zfcp_hba_dbf_record));
strncpy(rec->tag, "resp", ZFCP_DBF_TAG_SIZE);
if ((qtcb->prefix.prot_status != FSF_PROT_GOOD) &&
(qtcb->prefix.prot_status != FSF_PROT_FSF_STATUS_PRESENTED)) {
strncpy(rec->tag2, "perr", ZFCP_DBF_TAG_SIZE);
level = 1;
} else if (qtcb->header.fsf_status != FSF_GOOD) {
strncpy(rec->tag2, "ferr", ZFCP_DBF_TAG_SIZE);
level = 1;
} else if ((fsf_req->fsf_command == FSF_QTCB_OPEN_PORT_WITH_DID) ||
(fsf_req->fsf_command == FSF_QTCB_OPEN_LUN)) {
strncpy(rec->tag2, "open", ZFCP_DBF_TAG_SIZE);
level = 4;
} else if (qtcb->header.log_length) {
strncpy(rec->tag2, "qtcb", ZFCP_DBF_TAG_SIZE);
level = 5;
} else {
strncpy(rec->tag2, "norm", ZFCP_DBF_TAG_SIZE);
level = 6;
}
response->fsf_command = fsf_req->fsf_command;
response->fsf_reqid = (unsigned long)fsf_req;
response->fsf_seqno = fsf_req->seq_no;
response->fsf_issued = fsf_req->issued;
response->fsf_prot_status = qtcb->prefix.prot_status;
response->fsf_status = qtcb->header.fsf_status;
memcpy(response->fsf_prot_status_qual,
prot_status_qual, FSF_PROT_STATUS_QUAL_SIZE);
memcpy(response->fsf_status_qual,
fsf_status_qual, FSF_STATUS_QUALIFIER_SIZE);
response->fsf_req_status = fsf_req->status;
response->sbal_first = fsf_req->sbal_first;
response->sbal_curr = fsf_req->sbal_curr;
response->sbal_last = fsf_req->sbal_last;
response->pool = fsf_req->pool != NULL;
response->erp_action = (unsigned long)fsf_req->erp_action;
switch (fsf_req->fsf_command) {
case FSF_QTCB_FCP_CMND:
if (fsf_req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)
break;
scsi_cmnd = (struct scsi_cmnd *)fsf_req->data;
if (scsi_cmnd != NULL) {
response->data.send_fcp.scsi_cmnd
= (unsigned long)scsi_cmnd;
response->data.send_fcp.scsi_serial
= scsi_cmnd->serial_number;
}
break;
case FSF_QTCB_OPEN_PORT_WITH_DID:
case FSF_QTCB_CLOSE_PORT:
case FSF_QTCB_CLOSE_PHYSICAL_PORT:
port = (struct zfcp_port *)fsf_req->data;
response->data.port.wwpn = port->wwpn;
response->data.port.d_id = port->d_id;
response->data.port.port_handle = qtcb->header.port_handle;
break;
case FSF_QTCB_OPEN_LUN:
case FSF_QTCB_CLOSE_LUN:
unit = (struct zfcp_unit *)fsf_req->data;
port = unit->port;
response->data.unit.wwpn = port->wwpn;
response->data.unit.fcp_lun = unit->fcp_lun;
response->data.unit.port_handle = qtcb->header.port_handle;
response->data.unit.lun_handle = qtcb->header.lun_handle;
break;
case FSF_QTCB_SEND_ELS:
send_els = (struct zfcp_send_els *)fsf_req->data;
response->data.send_els.d_id = qtcb->bottom.support.d_id;
response->data.send_els.ls_code = send_els->ls_code >> 24;
break;
case FSF_QTCB_ABORT_FCP_CMND:
case FSF_QTCB_SEND_GENERIC:
case FSF_QTCB_EXCHANGE_CONFIG_DATA:
case FSF_QTCB_EXCHANGE_PORT_DATA:
case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
case FSF_QTCB_UPLOAD_CONTROL_FILE:
break;
}
debug_event(adapter->hba_dbf, level,
rec, sizeof(struct zfcp_hba_dbf_record));
/* have fcp channel microcode fixed to use as little as possible */
if (fsf_req->fsf_command != FSF_QTCB_FCP_CMND) {
/* adjust length skipping trailing zeros */
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);
}
spin_unlock_irqrestore(&adapter->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;
unsigned long flags;
spin_lock_irqsave(&adapter->hba_dbf_lock, flags);
memset(rec, 0, sizeof(struct zfcp_hba_dbf_record));
strncpy(rec->tag, "stat", ZFCP_DBF_TAG_SIZE);
strncpy(rec->tag2, tag, ZFCP_DBF_TAG_SIZE);
rec->type.status.failed = adapter->status_read_failed;
if (status_buffer != NULL) {
rec->type.status.status_type = status_buffer->status_type;
rec->type.status.status_subtype = status_buffer->status_subtype;
memcpy(&rec->type.status.queue_designator,
&status_buffer->queue_designator,
sizeof(struct fsf_queue_designator));
switch (status_buffer->status_type) {
case FSF_STATUS_READ_SENSE_DATA_AVAIL:
rec->type.status.payload_size =
ZFCP_DBF_UNSOL_PAYLOAD_SENSE_DATA_AVAIL;
break;
case FSF_STATUS_READ_BIT_ERROR_THRESHOLD:
rec->type.status.payload_size =
ZFCP_DBF_UNSOL_PAYLOAD_BIT_ERROR_THRESHOLD;
break;
case FSF_STATUS_READ_LINK_DOWN:
switch (status_buffer->status_subtype) {
case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK:
case FSF_STATUS_READ_SUB_FDISC_FAILED:
rec->type.status.payload_size =
sizeof(struct fsf_link_down_info);
}
break;
case FSF_STATUS_READ_FEATURE_UPDATE_ALERT:
rec->type.status.payload_size =
ZFCP_DBF_UNSOL_PAYLOAD_FEATURE_UPDATE_ALERT;
break;
}
memcpy(&rec->type.status.payload,
&status_buffer->payload, rec->type.status.payload_size);
}
debug_event(adapter->hba_dbf, 2,
rec, sizeof(struct zfcp_hba_dbf_record));
spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
}
void
zfcp_hba_dbf_event_qdio(struct zfcp_adapter *adapter, unsigned int status,
unsigned int qdio_error, unsigned int siga_error,
int sbal_index, int sbal_count)
{
struct zfcp_hba_dbf_record *rec = &adapter->hba_dbf_buf;
unsigned long flags;
spin_lock_irqsave(&adapter->hba_dbf_lock, flags);
memset(rec, 0, sizeof(struct zfcp_hba_dbf_record));
strncpy(rec->tag, "qdio", ZFCP_DBF_TAG_SIZE);
rec->type.qdio.status = status;
rec->type.qdio.qdio_error = qdio_error;
rec->type.qdio.siga_error = siga_error;
rec->type.qdio.sbal_index = sbal_index;
rec->type.qdio.sbal_count = sbal_count;
debug_event(adapter->hba_dbf, 0,
rec, sizeof(struct zfcp_hba_dbf_record));
spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
}
static int
zfcp_hba_dbf_view_response(char *out_buf,
struct zfcp_hba_dbf_record_response *rec)
{
int len = 0;
struct timespec t;
len += zfcp_dbf_view(out_buf + len, "fsf_command", "0x%08x",
rec->fsf_command);
len += zfcp_dbf_view(out_buf + len, "fsf_reqid", "0x%0Lx",
rec->fsf_reqid);
len += zfcp_dbf_view(out_buf + len, "fsf_seqno", "0x%08x",
rec->fsf_seqno);
zfcp_dbf_timestamp(rec->fsf_issued, &t);
len += zfcp_dbf_view(out_buf + len, "fsf_issued", "%011lu:%06lu",
t.tv_sec, t.tv_nsec);
len += zfcp_dbf_view(out_buf + len, "fsf_prot_status", "0x%08x",
rec->fsf_prot_status);
len += zfcp_dbf_view(out_buf + len, "fsf_status", "0x%08x",
rec->fsf_status);
len += zfcp_dbf_view_dump(out_buf + len, "fsf_prot_status_qual",
rec->fsf_prot_status_qual,
FSF_PROT_STATUS_QUAL_SIZE,
0, FSF_PROT_STATUS_QUAL_SIZE);
len += zfcp_dbf_view_dump(out_buf + len, "fsf_status_qual",
rec->fsf_status_qual,
FSF_STATUS_QUALIFIER_SIZE,
0, FSF_STATUS_QUALIFIER_SIZE);
len += zfcp_dbf_view(out_buf + len, "fsf_req_status", "0x%08x",
rec->fsf_req_status);
len += zfcp_dbf_view(out_buf + len, "sbal_first", "0x%02x",
rec->sbal_first);
len += zfcp_dbf_view(out_buf + len, "sbal_curr", "0x%02x",
rec->sbal_curr);
len += zfcp_dbf_view(out_buf + len, "sbal_last", "0x%02x",
rec->sbal_last);
len += zfcp_dbf_view(out_buf + len, "pool", "0x%02x", rec->pool);
switch (rec->fsf_command) {
case FSF_QTCB_FCP_CMND:
if (rec->fsf_req_status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)
break;
len += zfcp_dbf_view(out_buf + len, "scsi_cmnd", "0x%0Lx",
rec->data.send_fcp.scsi_cmnd);
len += zfcp_dbf_view(out_buf + len, "scsi_serial", "0x%016Lx",
rec->data.send_fcp.scsi_serial);
break;
case FSF_QTCB_OPEN_PORT_WITH_DID:
case FSF_QTCB_CLOSE_PORT:
case FSF_QTCB_CLOSE_PHYSICAL_PORT:
len += zfcp_dbf_view(out_buf + len, "wwpn", "0x%016Lx",
rec->data.port.wwpn);
len += zfcp_dbf_view(out_buf + len, "d_id", "0x%06x",
rec->data.port.d_id);
len += zfcp_dbf_view(out_buf + len, "port_handle", "0x%08x",
rec->data.port.port_handle);
break;
case FSF_QTCB_OPEN_LUN:
case FSF_QTCB_CLOSE_LUN:
len += zfcp_dbf_view(out_buf + len, "wwpn", "0x%016Lx",
rec->data.unit.wwpn);
len += zfcp_dbf_view(out_buf + len, "fcp_lun", "0x%016Lx",
rec->data.unit.fcp_lun);
len += zfcp_dbf_view(out_buf + len, "port_handle", "0x%08x",
rec->data.unit.port_handle);
len += zfcp_dbf_view(out_buf + len, "lun_handle", "0x%08x",
rec->data.unit.lun_handle);
break;
case FSF_QTCB_SEND_ELS:
len += zfcp_dbf_view(out_buf + len, "d_id", "0x%06x",
rec->data.send_els.d_id);
len += zfcp_dbf_view(out_buf + len, "ls_code", "0x%02x",
rec->data.send_els.ls_code);
break;
case FSF_QTCB_ABORT_FCP_CMND:
case FSF_QTCB_SEND_GENERIC:
case FSF_QTCB_EXCHANGE_CONFIG_DATA:
case FSF_QTCB_EXCHANGE_PORT_DATA:
case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
case FSF_QTCB_UPLOAD_CONTROL_FILE:
break;
}
return len;
}
static int
zfcp_hba_dbf_view_status(char *out_buf, struct zfcp_hba_dbf_record_status *rec)
{
int len = 0;
len += zfcp_dbf_view(out_buf + len, "failed", "0x%02x", rec->failed);
len += zfcp_dbf_view(out_buf + len, "status_type", "0x%08x",
rec->status_type);
len += zfcp_dbf_view(out_buf + len, "status_subtype", "0x%08x",
rec->status_subtype);
len += zfcp_dbf_view_dump(out_buf + len, "queue_designator",
(char *)&rec->queue_designator,
sizeof(struct fsf_queue_designator),
0, sizeof(struct fsf_queue_designator));
len += zfcp_dbf_view_dump(out_buf + len, "payload",
(char *)&rec->payload,
rec->payload_size, 0, rec->payload_size);
return len;
}
static int
zfcp_hba_dbf_view_qdio(char *out_buf, struct zfcp_hba_dbf_record_qdio *rec)
{
int len = 0;
len += zfcp_dbf_view(out_buf + len, "status", "0x%08x", rec->status);
len += zfcp_dbf_view(out_buf + len, "qdio_error", "0x%08x",
rec->qdio_error);
len += zfcp_dbf_view(out_buf + len, "siga_error", "0x%08x",
rec->siga_error);
len += zfcp_dbf_view(out_buf + len, "sbal_index", "0x%02x",
rec->sbal_index);
len += zfcp_dbf_view(out_buf + len, "sbal_count", "0x%02x",
rec->sbal_count);
return len;
}
static int
zfcp_hba_dbf_view_format(debug_info_t * id, struct debug_view *view,
char *out_buf, const char *in_buf)
{
struct zfcp_hba_dbf_record *rec = (struct zfcp_hba_dbf_record *)in_buf;
int len = 0;
if (strncmp(rec->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
return 0;
len += zfcp_dbf_tag(out_buf + len, "tag", rec->tag);
if (isalpha(rec->tag2[0]))
len += zfcp_dbf_tag(out_buf + len, "tag2", rec->tag2);
if (strncmp(rec->tag, "resp", ZFCP_DBF_TAG_SIZE) == 0)
len += zfcp_hba_dbf_view_response(out_buf + len,
&rec->type.response);
else if (strncmp(rec->tag, "stat", ZFCP_DBF_TAG_SIZE) == 0)
len += zfcp_hba_dbf_view_status(out_buf + len,
&rec->type.status);
else if (strncmp(rec->tag, "qdio", ZFCP_DBF_TAG_SIZE) == 0)
len += zfcp_hba_dbf_view_qdio(out_buf + len, &rec->type.qdio);
len += sprintf(out_buf + len, "\n");
return len;
}
static struct debug_view zfcp_hba_dbf_view = {
"structured",
NULL,
&zfcp_dbf_view_header,
&zfcp_hba_dbf_view_format,
NULL,
NULL
};
static const char *zfcp_rec_dbf_tags[] = {
[ZFCP_REC_DBF_ID_THREAD] = "thread",
[ZFCP_REC_DBF_ID_TARGET] = "target",
[ZFCP_REC_DBF_ID_TRIGGER] = "trigger",
[ZFCP_REC_DBF_ID_ACTION] = "action",
};
static const char *zfcp_rec_dbf_ids[] = {
[1] = "new",
[2] = "ready",
[3] = "kill",
[4] = "down sleep",
[5] = "down wakeup",
[6] = "down sleep ecd",
[7] = "down wakeup ecd",
[8] = "down sleep epd",
[9] = "down wakeup epd",
[10] = "online",
[11] = "operational",
[12] = "scsi slave destroy",
[13] = "propagate failed adapter",
[14] = "propagate failed port",
[15] = "block adapter",
[16] = "unblock adapter",
[17] = "block port",
[18] = "unblock port",
[19] = "block unit",
[20] = "unblock unit",
[21] = "unit recovery failed",
[22] = "port recovery failed",
[23] = "adapter recovery failed",
[24] = "qdio queues down",
[25] = "p2p failed",
[26] = "nameserver lookup failed",
[27] = "nameserver port failed",
[28] = "link up",
[29] = "link down",
[30] = "link up status read",
[31] = "open port failed",
[32] = "open port failed",
[33] = "close port",
[34] = "open unit failed",
[35] = "exclusive open unit failed",
[36] = "shared open unit failed",
[37] = "link down",
[38] = "link down status read no link",
[39] = "link down status read fdisc login",
[40] = "link down status read firmware update",
[41] = "link down status read unknown reason",
[42] = "link down ecd incomplete",
[43] = "link down epd incomplete",
[44] = "sysfs adapter recovery",
[45] = "sysfs port recovery",
[46] = "sysfs unit recovery",
[47] = "port boxed abort",
[48] = "unit boxed abort",
[49] = "port boxed ct",
[50] = "port boxed close physical",
[51] = "port boxed open unit",
[52] = "port boxed close unit",
[53] = "port boxed fcp",
[54] = "unit boxed fcp",
[55] = "port access denied ct",
[56] = "port access denied els",
[57] = "port access denied open port",
[58] = "port access denied close physical",
[59] = "unit access denied open unit",
[60] = "shared unit access denied open unit",
[61] = "unit access denied fcp",
[62] = "request timeout",
[63] = "adisc link test reject or timeout",
[64] = "adisc link test d_id changed",
[65] = "adisc link test failed",
[66] = "recovery out of memory",
[67] = "adapter recovery repeated after state change",
[68] = "port recovery repeated after state change",
[69] = "unit recovery repeated after state change",
[70] = "port recovery follow-up after successful adapter recovery",
[71] = "adapter recovery escalation after failed adapter recovery",
[72] = "port recovery follow-up after successful physical port "
"recovery",
[73] = "adapter recovery escalation after failed physical port "
"recovery",
[74] = "unit recovery follow-up after successful port recovery",
[75] = "physical port recovery escalation after failed port "
"recovery",
[76] = "port recovery escalation after failed unit recovery",
[77] = "recovery opening nameserver port",
[78] = "duplicate request id",
[79] = "link down",
[80] = "exclusive read-only unit access unsupported",
[81] = "shared read-write unit access unsupported",
[82] = "incoming rscn",
[83] = "incoming plogi",
[84] = "incoming logo",
[85] = "online",
[86] = "offline",
[87] = "ccw device gone",
[88] = "ccw device no path",
[89] = "ccw device operational",
[90] = "ccw device shutdown",
[91] = "sysfs port addition",
[92] = "sysfs port removal",
[93] = "sysfs adapter recovery",
[94] = "sysfs unit addition",
[95] = "sysfs unit removal",
[96] = "sysfs port recovery",
[97] = "sysfs unit recovery",
[98] = "sequence number mismatch",
[99] = "link up",
[100] = "error state",
[101] = "status read physical port closed",
[102] = "link up status read",
[103] = "too many failed status read buffers",
[104] = "port handle not valid abort",
[105] = "lun handle not valid abort",
[106] = "port handle not valid ct",
[107] = "port handle not valid close port",
[108] = "port handle not valid close physical port",
[109] = "port handle not valid open unit",
[110] = "port handle not valid close unit",
[111] = "lun handle not valid close unit",
[112] = "port handle not valid fcp",
[113] = "lun handle not valid fcp",
[114] = "handle mismatch fcp",
[115] = "lun not valid fcp",
[116] = "qdio send failed",
[117] = "version mismatch",
[118] = "incompatible qtcb type",
[119] = "unknown protocol status",
[120] = "unknown fsf command",
[121] = "no recommendation for status qualifier",
[122] = "status read physical port closed in error",
[123] = "fc service class not supported ct",
[124] = "fc service class not supported els",
[125] = "need newer zfcp",
[126] = "need newer microcode",
[127] = "arbitrated loop not supported",
[128] = "unknown topology",
[129] = "qtcb size mismatch",
[130] = "unknown fsf status ecd",
[131] = "fcp request too big",
[132] = "fc service class not supported fcp",
[133] = "data direction not valid fcp",
[134] = "command length not valid fcp",
[135] = "status read act update",
[136] = "status read cfdc update",
[137] = "hbaapi port open",
[138] = "hbaapi unit open",
[139] = "hbaapi unit shutdown",
[140] = "qdio error",
[141] = "scsi host reset",
[142] = "dismissing fsf request for recovery action",
[143] = "recovery action timed out",
[144] = "recovery action gone",
[145] = "recovery action being processed",
[146] = "recovery action ready for next step",
};
static int zfcp_rec_dbf_view_format(debug_info_t *id, struct debug_view *view,
char *buf, const char *_rec)
{
struct zfcp_rec_dbf_record *r = (struct zfcp_rec_dbf_record *)_rec;
char *p = buf;
zfcp_dbf_outs(&p, "tag", zfcp_rec_dbf_tags[r->id]);
zfcp_dbf_outs(&p, "hint", zfcp_rec_dbf_ids[r->id2]);
zfcp_dbf_out(&p, "id", "%d", r->id2);
switch (r->id) {
case ZFCP_REC_DBF_ID_THREAD:
zfcp_dbf_out(&p, "sema", "%d", r->u.thread.sema);
zfcp_dbf_out(&p, "total", "%d", r->u.thread.total);
zfcp_dbf_out(&p, "ready", "%d", r->u.thread.ready);
zfcp_dbf_out(&p, "running", "%d", r->u.thread.running);
break;
case ZFCP_REC_DBF_ID_TARGET:
zfcp_dbf_out(&p, "reference", "0x%016Lx", r->u.target.ref);
zfcp_dbf_out(&p, "status", "0x%08x", r->u.target.status);
zfcp_dbf_out(&p, "erp_count", "%d", r->u.target.erp_count);
zfcp_dbf_out(&p, "d_id", "0x%06x", r->u.target.d_id);
zfcp_dbf_out(&p, "wwpn", "0x%016Lx", r->u.target.wwpn);
zfcp_dbf_out(&p, "fcp_lun", "0x%016Lx", r->u.target.fcp_lun);
break;
case ZFCP_REC_DBF_ID_TRIGGER:
zfcp_dbf_out(&p, "reference", "0x%016Lx", r->u.trigger.ref);
zfcp_dbf_out(&p, "erp_action", "0x%016Lx", r->u.trigger.action);
zfcp_dbf_out(&p, "requested", "%d", r->u.trigger.want);
zfcp_dbf_out(&p, "executed", "%d", r->u.trigger.need);
zfcp_dbf_out(&p, "wwpn", "0x%016Lx", r->u.trigger.wwpn);
zfcp_dbf_out(&p, "fcp_lun", "0x%016Lx", r->u.trigger.fcp_lun);
zfcp_dbf_out(&p, "adapter_status", "0x%08x", r->u.trigger.as);
zfcp_dbf_out(&p, "port_status", "0x%08x", r->u.trigger.ps);
zfcp_dbf_out(&p, "unit_status", "0x%08x", r->u.trigger.us);
break;
case ZFCP_REC_DBF_ID_ACTION:
zfcp_dbf_out(&p, "erp_action", "0x%016Lx", r->u.action.action);
zfcp_dbf_out(&p, "fsf_req", "0x%016Lx", r->u.action.fsf_req);
zfcp_dbf_out(&p, "status", "0x%08Lx", r->u.action.status);
zfcp_dbf_out(&p, "step", "0x%08Lx", r->u.action.step);
break;
}
sprintf(p, "\n");
return (p - buf) + 1;
}
static struct debug_view zfcp_rec_dbf_view = {
"structured",
NULL,
&zfcp_dbf_view_header,
&zfcp_rec_dbf_view_format,
NULL,
NULL
};
/**
* zfcp_rec_dbf_event_thread - trace event related to recovery thread operation
* @id2: identifier for event
* @adapter: adapter
* @lock: non-zero value indicates that erp_lock has not yet been acquired
*/
void zfcp_rec_dbf_event_thread(u8 id2, struct zfcp_adapter *adapter, int lock)
{
struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
unsigned long flags = 0;
struct list_head *entry;
unsigned ready = 0, running = 0, total;
if (lock)
read_lock_irqsave(&adapter->erp_lock, flags);
list_for_each(entry, &adapter->erp_ready_head)
ready++;
list_for_each(entry, &adapter->erp_running_head)
running++;
total = adapter->erp_total_count;
if (lock)
read_unlock_irqrestore(&adapter->erp_lock, flags);
spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
memset(r, 0, sizeof(*r));
r->id = ZFCP_REC_DBF_ID_THREAD;
r->id2 = id2;
r->u.thread.sema = atomic_read(&adapter->erp_ready_sem.count);
r->u.thread.total = total;
r->u.thread.ready = ready;
r->u.thread.running = running;
debug_event(adapter->rec_dbf, 5, r, sizeof(*r));
spin_unlock_irqrestore(&adapter->rec_dbf_lock, flags);
}
static void zfcp_rec_dbf_event_target(u8 id2, u64 ref,
struct zfcp_adapter *adapter,
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;
unsigned long flags;
spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
memset(r, 0, sizeof(*r));
r->id = ZFCP_REC_DBF_ID_TARGET;
r->id2 = id2;
r->u.target.ref = ref;
r->u.target.status = atomic_read(status);
r->u.target.wwpn = wwpn;
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);
}
/**
* zfcp_rec_dbf_event_adapter - trace event for adapter state change
* @id: identifier for trigger of state change
* @ref: additional reference (e.g. request)
* @adapter: adapter
*/
void zfcp_rec_dbf_event_adapter(u8 id, u64 ref, struct zfcp_adapter *adapter)
{
zfcp_rec_dbf_event_target(id, ref, adapter, &adapter->status,
&adapter->erp_counter, 0, 0, 0);
}
/**
* zfcp_rec_dbf_event_port - trace event for port state change
* @id: identifier for trigger of state change
* @ref: additional reference (e.g. request)
* @port: port
*/
void zfcp_rec_dbf_event_port(u8 id, u64 ref, struct zfcp_port *port)
{
struct zfcp_adapter *adapter = port->adapter;
zfcp_rec_dbf_event_target(id, ref, adapter, &port->status,
&port->erp_counter, port->wwpn, port->d_id,
0);
}
/**
* zfcp_rec_dbf_event_unit - trace event for unit state change
* @id: identifier for trigger of state change
* @ref: additional reference (e.g. request)
* @unit: unit
*/
void zfcp_rec_dbf_event_unit(u8 id, u64 ref, struct zfcp_unit *unit)
{
struct zfcp_port *port = unit->port;
struct zfcp_adapter *adapter = port->adapter;
zfcp_rec_dbf_event_target(id, ref, adapter, &unit->status,
&unit->erp_counter, port->wwpn, port->d_id,
unit->fcp_lun);
}
/**
* zfcp_rec_dbf_event_trigger - trace event for triggered error recovery
* @id2: identifier for error recovery trigger
* @ref: additional reference (e.g. request)
* @want: originally requested error recovery action
* @need: error recovery action actually initiated
* @action: address of error recovery action struct
* @adapter: adapter
* @port: port
* @unit: unit
*/
void zfcp_rec_dbf_event_trigger(u8 id2, u64 ref, u8 want, u8 need, u64 action,
struct zfcp_adapter *adapter,
struct zfcp_port *port, struct zfcp_unit *unit)
{
struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
unsigned long flags;
spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
memset(r, 0, sizeof(*r));
r->id = ZFCP_REC_DBF_ID_TRIGGER;
r->id2 = id2;
r->u.trigger.ref = ref;
r->u.trigger.want = want;
r->u.trigger.need = need;
r->u.trigger.action = action;
r->u.trigger.as = atomic_read(&adapter->status);
if (port) {
r->u.trigger.ps = atomic_read(&port->status);
r->u.trigger.wwpn = port->wwpn;
}
if (unit) {
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);
}
/**
* zfcp_rec_dbf_event_action - trace event showing progress of recovery action
* @id2: identifier
* @erp_action: error recovery action struct pointer
*/
void zfcp_rec_dbf_event_action(u8 id2, struct zfcp_erp_action *erp_action)
{
struct zfcp_adapter *adapter = erp_action->adapter;
struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
unsigned long flags;
spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
memset(r, 0, sizeof(*r));
r->id = ZFCP_REC_DBF_ID_ACTION;
r->id2 = id2;
r->u.action.action = (u64)erp_action;
r->u.action.status = erp_action->status;
r->u.action.step = erp_action->step;
r->u.action.fsf_req = (u64)erp_action->fsf_req;
debug_event(adapter->rec_dbf, 4, r, sizeof(*r));
spin_unlock_irqrestore(&adapter->rec_dbf_lock, flags);
}
static void
_zfcp_san_dbf_event_common_ct(const char *tag, struct zfcp_fsf_req *fsf_req,
u32 s_id, u32 d_id, void *buffer, int buflen)
{
struct zfcp_send_ct *send_ct = (struct zfcp_send_ct *)fsf_req->data;
struct zfcp_port *port = send_ct->port;
struct zfcp_adapter *adapter = port->adapter;
struct ct_hdr *header = (struct ct_hdr *)buffer;
struct zfcp_san_dbf_record *rec = &adapter->san_dbf_buf;
struct zfcp_san_dbf_record_ct *ct = &rec->type.ct;
unsigned long flags;
spin_lock_irqsave(&adapter->san_dbf_lock, flags);
memset(rec, 0, sizeof(struct zfcp_san_dbf_record));
strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
rec->fsf_reqid = (unsigned long)fsf_req;
rec->fsf_seqno = fsf_req->seq_no;
rec->s_id = s_id;
rec->d_id = d_id;
if (strncmp(tag, "octc", ZFCP_DBF_TAG_SIZE) == 0) {
ct->type.request.cmd_req_code = header->cmd_rsp_code;
ct->type.request.revision = header->revision;
ct->type.request.gs_type = header->gs_type;
ct->type.request.gs_subtype = header->gs_subtype;
ct->type.request.options = header->options;
ct->type.request.max_res_size = header->max_res_size;
} else if (strncmp(tag, "rctc", ZFCP_DBF_TAG_SIZE) == 0) {
ct->type.response.cmd_rsp_code = header->cmd_rsp_code;
ct->type.response.revision = header->revision;
ct->type.response.reason_code = header->reason_code;
ct->type.response.reason_code_expl = header->reason_code_expl;
ct->type.response.vendor_unique = header->vendor_unique;
}
ct->payload_size =
min(buflen - (int)sizeof(struct ct_hdr), ZFCP_DBF_CT_PAYLOAD);
memcpy(ct->payload, buffer + sizeof(struct ct_hdr), ct->payload_size);
debug_event(adapter->san_dbf, 3,
rec, sizeof(struct zfcp_san_dbf_record));
spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
}
void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *fsf_req)
{
struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data;
struct zfcp_port *port = ct->port;
struct zfcp_adapter *adapter = port->adapter;
_zfcp_san_dbf_event_common_ct("octc", fsf_req,
fc_host_port_id(adapter->scsi_host),
port->d_id, zfcp_sg_to_address(ct->req),
ct->req->length);
}
void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *fsf_req)
{
struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data;
struct zfcp_port *port = ct->port;
struct zfcp_adapter *adapter = port->adapter;
_zfcp_san_dbf_event_common_ct("rctc", fsf_req, port->d_id,
fc_host_port_id(adapter->scsi_host),
zfcp_sg_to_address(ct->resp),
ct->resp->length);
}
static void
_zfcp_san_dbf_event_common_els(const char *tag, int level,
struct zfcp_fsf_req *fsf_req, u32 s_id,
u32 d_id, u8 ls_code, void *buffer, int buflen)
{
struct zfcp_adapter *adapter = fsf_req->adapter;
struct zfcp_san_dbf_record *rec = &adapter->san_dbf_buf;
unsigned long flags;
spin_lock_irqsave(&adapter->san_dbf_lock, flags);
memset(rec, 0, sizeof(struct zfcp_san_dbf_record));
strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
rec->fsf_reqid = (unsigned long)fsf_req;
rec->fsf_seqno = fsf_req->seq_no;
rec->s_id = s_id;
rec->d_id = d_id;
rec->type.els.ls_code = ls_code;
debug_event(adapter->san_dbf, level, rec, sizeof(*rec));
zfcp_dbf_hexdump(adapter->san_dbf, rec, sizeof(*rec), level,
buffer, min(buflen, ZFCP_DBF_ELS_MAX_PAYLOAD));
spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
}
void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *fsf_req)
{
struct zfcp_send_els *els = (struct zfcp_send_els *)fsf_req->data;
_zfcp_san_dbf_event_common_els("oels", 2, fsf_req,
fc_host_port_id(els->adapter->scsi_host),
els->d_id,
*(u8 *) zfcp_sg_to_address(els->req),
zfcp_sg_to_address(els->req),
els->req->length);
}
void zfcp_san_dbf_event_els_response(struct zfcp_fsf_req *fsf_req)
{
struct zfcp_send_els *els = (struct zfcp_send_els *)fsf_req->data;
_zfcp_san_dbf_event_common_els("rels", 2, fsf_req, els->d_id,
fc_host_port_id(els->adapter->scsi_host),
*(u8 *) zfcp_sg_to_address(els->req),
zfcp_sg_to_address(els->resp),
els->resp->length);
}
void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *fsf_req)
{
struct zfcp_adapter *adapter = fsf_req->adapter;
struct fsf_status_read_buffer *status_buffer =
(struct fsf_status_read_buffer *)fsf_req->data;
int length = (int)status_buffer->length -
(int)((void *)&status_buffer->payload - (void *)status_buffer);
_zfcp_san_dbf_event_common_els("iels", 1, fsf_req, status_buffer->d_id,
fc_host_port_id(adapter->scsi_host),
*(u8 *) status_buffer->payload,
(void *)status_buffer->payload, length);
}
static int
zfcp_san_dbf_view_format(debug_info_t * id, struct debug_view *view,
char *out_buf, const char *in_buf)
{
struct zfcp_san_dbf_record *rec = (struct zfcp_san_dbf_record *)in_buf;
char *buffer = NULL;
int buflen = 0, total = 0;
int len = 0;
if (strncmp(rec->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
return 0;
len += zfcp_dbf_tag(out_buf + len, "tag", rec->tag);
len += zfcp_dbf_view(out_buf + len, "fsf_reqid", "0x%0Lx",
rec->fsf_reqid);
len += zfcp_dbf_view(out_buf + len, "fsf_seqno", "0x%08x",
rec->fsf_seqno);
len += zfcp_dbf_view(out_buf + len, "s_id", "0x%06x", rec->s_id);
len += zfcp_dbf_view(out_buf + len, "d_id", "0x%06x", rec->d_id);
if (strncmp(rec->tag, "octc", ZFCP_DBF_TAG_SIZE) == 0) {
len += zfcp_dbf_view(out_buf + len, "cmd_req_code", "0x%04x",
rec->type.ct.type.request.cmd_req_code);
len += zfcp_dbf_view(out_buf + len, "revision", "0x%02x",
rec->type.ct.type.request.revision);
len += zfcp_dbf_view(out_buf + len, "gs_type", "0x%02x",
rec->type.ct.type.request.gs_type);
len += zfcp_dbf_view(out_buf + len, "gs_subtype", "0x%02x",
rec->type.ct.type.request.gs_subtype);
len += zfcp_dbf_view(out_buf + len, "options", "0x%02x",
rec->type.ct.type.request.options);
len += zfcp_dbf_view(out_buf + len, "max_res_size", "0x%04x",
rec->type.ct.type.request.max_res_size);
total = rec->type.ct.payload_size;
buffer = rec->type.ct.payload;
buflen = min(total, ZFCP_DBF_CT_PAYLOAD);
} else if (strncmp(rec->tag, "rctc", ZFCP_DBF_TAG_SIZE) == 0) {
len += zfcp_dbf_view(out_buf + len, "cmd_rsp_code", "0x%04x",
rec->type.ct.type.response.cmd_rsp_code);
len += zfcp_dbf_view(out_buf + len, "revision", "0x%02x",
rec->type.ct.type.response.revision);
len += zfcp_dbf_view(out_buf + len, "reason_code", "0x%02x",
rec->type.ct.type.response.reason_code);
len +=
zfcp_dbf_view(out_buf + len, "reason_code_expl", "0x%02x",
rec->type.ct.type.response.reason_code_expl);
len +=
zfcp_dbf_view(out_buf + len, "vendor_unique", "0x%02x",
rec->type.ct.type.response.vendor_unique);
total = rec->type.ct.payload_size;
buffer = rec->type.ct.payload;
buflen = min(total, ZFCP_DBF_CT_PAYLOAD);
} else if (strncmp(rec->tag, "oels", ZFCP_DBF_TAG_SIZE) == 0 ||
strncmp(rec->tag, "rels", ZFCP_DBF_TAG_SIZE) == 0 ||
strncmp(rec->tag, "iels", ZFCP_DBF_TAG_SIZE) == 0) {
len += zfcp_dbf_view(out_buf + len, "ls_code", "0x%02x",
rec->type.els.ls_code);
total = rec->type.els.payload_size;
buffer = rec->type.els.payload;
buflen = min(total, ZFCP_DBF_ELS_PAYLOAD);
}
len += zfcp_dbf_view_dump(out_buf + len, "payload",
buffer, buflen, 0, total);
if (buflen == total)
len += sprintf(out_buf + len, "\n");
return len;
}
static struct debug_view zfcp_san_dbf_view = {
"structured",
NULL,
&zfcp_dbf_view_header,
&zfcp_san_dbf_view_format,
NULL,
NULL
};
static void
_zfcp_scsi_dbf_event_common(const char *tag, const char *tag2, int level,
struct zfcp_adapter *adapter,
struct scsi_cmnd *scsi_cmnd,
struct zfcp_fsf_req *fsf_req,
unsigned long old_req_id)
{
struct zfcp_scsi_dbf_record *rec = &adapter->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);
do {
memset(rec, 0, sizeof(struct zfcp_scsi_dbf_record));
if (offset == 0) {
strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
strncpy(rec->tag2, tag2, ZFCP_DBF_TAG_SIZE);
if (scsi_cmnd != NULL) {
if (scsi_cmnd->device) {
rec->scsi_id = scsi_cmnd->device->id;
rec->scsi_lun = scsi_cmnd->device->lun;
}
rec->scsi_result = scsi_cmnd->result;
rec->scsi_cmnd = (unsigned long)scsi_cmnd;
rec->scsi_serial = scsi_cmnd->serial_number;
memcpy(rec->scsi_opcode, &scsi_cmnd->cmnd,
min((int)scsi_cmnd->cmd_len,
ZFCP_DBF_SCSI_OPCODE));
rec->scsi_retries = scsi_cmnd->retries;
rec->scsi_allowed = scsi_cmnd->allowed;
}
if (fsf_req != NULL) {
fcp_rsp = (struct fcp_rsp_iu *)
&(fsf_req->qtcb->bottom.io.fcp_rsp);
fcp_rsp_info =
zfcp_get_fcp_rsp_info_ptr(fcp_rsp);
fcp_sns_info =
zfcp_get_fcp_sns_info_ptr(fcp_rsp);
rec->type.fcp.rsp_validity =
fcp_rsp->validity.value;
rec->type.fcp.rsp_scsi_status =
fcp_rsp->scsi_status;
rec->type.fcp.rsp_resid = fcp_rsp->fcp_resid;
if (fcp_rsp->validity.bits.fcp_rsp_len_valid)
rec->type.fcp.rsp_code =
*(fcp_rsp_info + 3);
if (fcp_rsp->validity.bits.fcp_sns_len_valid) {
buflen = min((int)fcp_rsp->fcp_sns_len,
ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO);
rec->type.fcp.sns_info_len = buflen;
memcpy(rec->type.fcp.sns_info,
fcp_sns_info,
min(buflen,
ZFCP_DBF_SCSI_FCP_SNS_INFO));
offset += min(buflen,
ZFCP_DBF_SCSI_FCP_SNS_INFO);
}
rec->fsf_reqid = (unsigned long)fsf_req;
rec->fsf_seqno = fsf_req->seq_no;
rec->fsf_issued = fsf_req->issued;
}
rec->type.old_fsf_reqid = old_req_id;
} else {
strncpy(dump->tag, "dump", ZFCP_DBF_TAG_SIZE);
dump->total_size = buflen;
dump->offset = offset;
dump->size = min(buflen - offset,
(int)sizeof(struct
zfcp_scsi_dbf_record) -
(int)sizeof(struct zfcp_dbf_dump));
memcpy(dump->data, fcp_sns_info + offset, dump->size);
offset += dump->size;
}
debug_event(adapter->scsi_dbf, level,
rec, sizeof(struct zfcp_scsi_dbf_record));
} while (offset < buflen);
spin_unlock_irqrestore(&adapter->scsi_dbf_lock, flags);
}
void
zfcp_scsi_dbf_event_result(const char *tag, int level,
struct zfcp_adapter *adapter,
struct scsi_cmnd *scsi_cmnd,
struct zfcp_fsf_req *fsf_req)
{
_zfcp_scsi_dbf_event_common("rslt", tag, level,
adapter, scsi_cmnd, fsf_req, 0);
}
void
zfcp_scsi_dbf_event_abort(const char *tag, struct zfcp_adapter *adapter,
struct scsi_cmnd *scsi_cmnd,
struct zfcp_fsf_req *new_fsf_req,
unsigned long old_req_id)
{
_zfcp_scsi_dbf_event_common("abrt", tag, 1,
adapter, scsi_cmnd, new_fsf_req, old_req_id);
}
void
zfcp_scsi_dbf_event_devreset(const char *tag, u8 flag, struct zfcp_unit *unit,
struct scsi_cmnd *scsi_cmnd)
{
struct zfcp_adapter *adapter = unit->port->adapter;
_zfcp_scsi_dbf_event_common(flag == FCP_TARGET_RESET ? "trst" : "lrst",
tag, 1, adapter, scsi_cmnd, NULL, 0);
}
static int
zfcp_scsi_dbf_view_format(debug_info_t * id, struct debug_view *view,
char *out_buf, const char *in_buf)
{
struct zfcp_scsi_dbf_record *rec =
(struct zfcp_scsi_dbf_record *)in_buf;
int len = 0;
struct timespec t;
if (strncmp(rec->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
return 0;
len += zfcp_dbf_tag(out_buf + len, "tag", rec->tag);
len += zfcp_dbf_tag(out_buf + len, "tag2", rec->tag2);
len += zfcp_dbf_view(out_buf + len, "scsi_id", "0x%08x", rec->scsi_id);
len += zfcp_dbf_view(out_buf + len, "scsi_lun", "0x%08x",
rec->scsi_lun);
len += zfcp_dbf_view(out_buf + len, "scsi_result", "0x%08x",
rec->scsi_result);
len += zfcp_dbf_view(out_buf + len, "scsi_cmnd", "0x%0Lx",
rec->scsi_cmnd);
len += zfcp_dbf_view(out_buf + len, "scsi_serial", "0x%016Lx",
rec->scsi_serial);
len += zfcp_dbf_view_dump(out_buf + len, "scsi_opcode",
rec->scsi_opcode,
ZFCP_DBF_SCSI_OPCODE,
0, ZFCP_DBF_SCSI_OPCODE);
len += zfcp_dbf_view(out_buf + len, "scsi_retries", "0x%02x",
rec->scsi_retries);
len += zfcp_dbf_view(out_buf + len, "scsi_allowed", "0x%02x",
rec->scsi_allowed);
if (strncmp(rec->tag, "abrt", ZFCP_DBF_TAG_SIZE) == 0) {
len += zfcp_dbf_view(out_buf + len, "old_fsf_reqid", "0x%0Lx",
rec->type.old_fsf_reqid);
}
len += zfcp_dbf_view(out_buf + len, "fsf_reqid", "0x%0Lx",
rec->fsf_reqid);
len += zfcp_dbf_view(out_buf + len, "fsf_seqno", "0x%08x",
rec->fsf_seqno);
zfcp_dbf_timestamp(rec->fsf_issued, &t);
len += zfcp_dbf_view(out_buf + len, "fsf_issued", "%011lu:%06lu",
t.tv_sec, t.tv_nsec);
if (strncmp(rec->tag, "rslt", ZFCP_DBF_TAG_SIZE) == 0) {
len +=
zfcp_dbf_view(out_buf + len, "fcp_rsp_validity", "0x%02x",
rec->type.fcp.rsp_validity);
len +=
zfcp_dbf_view(out_buf + len, "fcp_rsp_scsi_status",
"0x%02x", rec->type.fcp.rsp_scsi_status);
len +=
zfcp_dbf_view(out_buf + len, "fcp_rsp_resid", "0x%08x",
rec->type.fcp.rsp_resid);
len +=
zfcp_dbf_view(out_buf + len, "fcp_rsp_code", "0x%08x",
rec->type.fcp.rsp_code);
len +=
zfcp_dbf_view(out_buf + len, "fcp_sns_info_len", "0x%08x",
rec->type.fcp.sns_info_len);
len +=
zfcp_dbf_view_dump(out_buf + len, "fcp_sns_info",
rec->type.fcp.sns_info,
min((int)rec->type.fcp.sns_info_len,
ZFCP_DBF_SCSI_FCP_SNS_INFO), 0,
rec->type.fcp.sns_info_len);
}
len += sprintf(out_buf + len, "\n");
return len;
}
static struct debug_view zfcp_scsi_dbf_view = {
"structured",
NULL,
&zfcp_dbf_view_header,
&zfcp_scsi_dbf_view_format,
NULL,
NULL
};
/**
* zfcp_adapter_debug_register - registers debug feature for an adapter
* @adapter: pointer to adapter for which debug features should be registered
* return: -ENOMEM on error, 0 otherwise
*/
int zfcp_adapter_debug_register(struct zfcp_adapter *adapter)
{
char dbf_name[DEBUG_MAX_NAME_LEN];
/* debug feature area which records recovery activity */
sprintf(dbf_name, "zfcp_%s_rec", zfcp_get_busid_by_adapter(adapter));
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);
/* debug feature area which records HBA (FSF and QDIO) conditions */
sprintf(dbf_name, "zfcp_%s_hba", zfcp_get_busid_by_adapter(adapter));
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);
/* debug feature area which records SAN command failures and recovery */
sprintf(dbf_name, "zfcp_%s_san", zfcp_get_busid_by_adapter(adapter));
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);
/* debug feature area which records SCSI command failures and recovery */
sprintf(dbf_name, "zfcp_%s_scsi", zfcp_get_busid_by_adapter(adapter));
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);
return 0;
failed:
zfcp_adapter_debug_unregister(adapter);
return -ENOMEM;
}
/**
* zfcp_adapter_debug_unregister - unregisters debug feature for an adapter
* @adapter: pointer to adapter for which debug features should be unregistered
*/
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;
}
#undef ZFCP_LOG_AREA
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