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[SCSI] zfcp: enhancement of zfcp debug features 

Debug features (DBFs) els_dbf, cmd_dbf and abt_dbf were removed and
san_dbf, hba_dbf and scsi_dbf were introduced. The erp_dbf did not
change.
The new traces improve debugging of problems with zfcp, scsi-stack,
multipath and hardware in the SAN. san_dbf traces things like ELS and
CT commands, hba_dbf saves HBA specific information of requests, and
scsi_dbf saves FCP and SCSI specific information of requests. Common
to all new DBFs is that they provide a so called structured view. This
significantly improves readability of the traces.

Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Maxim Shchetynin 2005-09-13 21:50:38 +02:00 committed by James Bottomley
parent 810f1e3ea5
commit 8a36e4532e
9 changed files with 1297 additions and 435 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/s390/scsi/Makefile
View File

@ -3,7 +3,7 @@
#
zfcp-objs := zfcp_aux.o zfcp_ccw.o zfcp_scsi.o zfcp_erp.o zfcp_qdio.o \
zfcp_fsf.o zfcp_sysfs_adapter.o zfcp_sysfs_port.o \
zfcp_fsf.o zfcp_dbf.o zfcp_sysfs_adapter.o zfcp_sysfs_port.o \
zfcp_sysfs_unit.o zfcp_sysfs_driver.o
obj-$(CONFIG_ZFCP) += zfcp.o

180
drivers/s390/scsi/zfcp_aux.c
View File

@ -122,93 +122,6 @@ _zfcp_hex_dump(char *addr, int count)
#define ZFCP_LOG_AREA ZFCP_LOG_AREA_OTHER
static inline int
zfcp_fsf_req_is_scsi_cmnd(struct zfcp_fsf_req *fsf_req)
{
return ((fsf_req->fsf_command == FSF_QTCB_FCP_CMND) &&
!(fsf_req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT));
}
void
zfcp_cmd_dbf_event_fsf(const char *text, struct zfcp_fsf_req *fsf_req,
void *add_data, int add_length)
{
struct zfcp_adapter *adapter = fsf_req->adapter;
struct scsi_cmnd *scsi_cmnd;
int level = 3;
int i;
unsigned long flags;
spin_lock_irqsave(&adapter->dbf_lock, flags);
if (zfcp_fsf_req_is_scsi_cmnd(fsf_req)) {
scsi_cmnd = (struct scsi_cmnd*) fsf_req->data;
debug_text_event(adapter->cmd_dbf, level, "fsferror");
debug_text_event(adapter->cmd_dbf, level, text);
debug_event(adapter->cmd_dbf, level, &fsf_req,
sizeof (unsigned long));
debug_event(adapter->cmd_dbf, level, &fsf_req->seq_no,
sizeof (u32));
debug_event(adapter->cmd_dbf, level, &scsi_cmnd,
sizeof (unsigned long));
debug_event(adapter->cmd_dbf, level, &scsi_cmnd->cmnd,
min(ZFCP_CMD_DBF_LENGTH, (int)scsi_cmnd->cmd_len));
for (i = 0; i < add_length; i += ZFCP_CMD_DBF_LENGTH)
debug_event(adapter->cmd_dbf,
level,
(char *) add_data + i,
min(ZFCP_CMD_DBF_LENGTH, add_length - i));
}
spin_unlock_irqrestore(&adapter->dbf_lock, flags);
}
/* XXX additionally log unit if available */
/* ---> introduce new parameter for unit, see 2.4 code */
void
zfcp_cmd_dbf_event_scsi(const char *text, struct scsi_cmnd *scsi_cmnd)
{
struct zfcp_adapter *adapter;
struct zfcp_fsf_req *fsf_req;
int level = ((host_byte(scsi_cmnd->result) != 0) ? 1 : 5);
unsigned long flags;
adapter = (struct zfcp_adapter *) scsi_cmnd->device->host->hostdata[0];
fsf_req = (struct zfcp_fsf_req *) scsi_cmnd->host_scribble;
spin_lock_irqsave(&adapter->dbf_lock, flags);
debug_text_event(adapter->cmd_dbf, level, "hostbyte");
debug_text_event(adapter->cmd_dbf, level, text);
debug_event(adapter->cmd_dbf, level, &scsi_cmnd->result, sizeof (u32));
debug_event(adapter->cmd_dbf, level, &scsi_cmnd,
sizeof (unsigned long));
debug_event(adapter->cmd_dbf, level, &scsi_cmnd->cmnd,
min(ZFCP_CMD_DBF_LENGTH, (int)scsi_cmnd->cmd_len));
if (likely(fsf_req)) {
debug_event(adapter->cmd_dbf, level, &fsf_req,
sizeof (unsigned long));
debug_event(adapter->cmd_dbf, level, &fsf_req->seq_no,
sizeof (u32));
} else {
debug_text_event(adapter->cmd_dbf, level, "");
debug_text_event(adapter->cmd_dbf, level, "");
}
spin_unlock_irqrestore(&adapter->dbf_lock, flags);
}
void
zfcp_in_els_dbf_event(struct zfcp_adapter *adapter, const char *text,
struct fsf_status_read_buffer *status_buffer, int length)
{
int level = 1;
int i;
debug_text_event(adapter->in_els_dbf, level, text);
debug_event(adapter->in_els_dbf, level, &status_buffer->d_id, 8);
for (i = 0; i < length; i += ZFCP_IN_ELS_DBF_LENGTH)
debug_event(adapter->in_els_dbf,
level,
(char *) status_buffer->payload + i,
min(ZFCP_IN_ELS_DBF_LENGTH, length - i));
}
/**
* zfcp_device_setup - setup function
* @str: pointer to parameter string
@ -1015,81 +928,6 @@ zfcp_free_low_mem_buffers(struct zfcp_adapter *adapter)
mempool_destroy(adapter->pool.data_gid_pn);
}
/**
* 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[20];
/* debug feature area which records SCSI command failures (hostbyte) */
spin_lock_init(&adapter->dbf_lock);
sprintf(dbf_name, ZFCP_CMD_DBF_NAME "%s",
zfcp_get_busid_by_adapter(adapter));
adapter->cmd_dbf = debug_register(dbf_name, ZFCP_CMD_DBF_INDEX,
ZFCP_CMD_DBF_AREAS,
ZFCP_CMD_DBF_LENGTH);
debug_register_view(adapter->cmd_dbf, &debug_hex_ascii_view);
debug_set_level(adapter->cmd_dbf, ZFCP_CMD_DBF_LEVEL);
/* debug feature area which records SCSI command aborts */
sprintf(dbf_name, ZFCP_ABORT_DBF_NAME "%s",
zfcp_get_busid_by_adapter(adapter));
adapter->abort_dbf = debug_register(dbf_name, ZFCP_ABORT_DBF_INDEX,
ZFCP_ABORT_DBF_AREAS,
ZFCP_ABORT_DBF_LENGTH);
debug_register_view(adapter->abort_dbf, &debug_hex_ascii_view);
debug_set_level(adapter->abort_dbf, ZFCP_ABORT_DBF_LEVEL);
/* debug feature area which records incoming ELS commands */
sprintf(dbf_name, ZFCP_IN_ELS_DBF_NAME "%s",
zfcp_get_busid_by_adapter(adapter));
adapter->in_els_dbf = debug_register(dbf_name, ZFCP_IN_ELS_DBF_INDEX,
ZFCP_IN_ELS_DBF_AREAS,
ZFCP_IN_ELS_DBF_LENGTH);
debug_register_view(adapter->in_els_dbf, &debug_hex_ascii_view);
debug_set_level(adapter->in_els_dbf, ZFCP_IN_ELS_DBF_LEVEL);
/* debug feature area which records erp events */
sprintf(dbf_name, ZFCP_ERP_DBF_NAME "%s",
zfcp_get_busid_by_adapter(adapter));
adapter->erp_dbf = debug_register(dbf_name, ZFCP_ERP_DBF_INDEX,
ZFCP_ERP_DBF_AREAS,
ZFCP_ERP_DBF_LENGTH);
debug_register_view(adapter->erp_dbf, &debug_hex_ascii_view);
debug_set_level(adapter->erp_dbf, ZFCP_ERP_DBF_LEVEL);
if (!(adapter->cmd_dbf && adapter->abort_dbf &&
adapter->in_els_dbf && adapter->erp_dbf)) {
zfcp_adapter_debug_unregister(adapter);
return -ENOMEM;
}
return 0;
}
/**
* 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->abort_dbf);
debug_unregister(adapter->cmd_dbf);
debug_unregister(adapter->erp_dbf);
debug_unregister(adapter->in_els_dbf);
adapter->abort_dbf = NULL;
adapter->cmd_dbf = NULL;
adapter->erp_dbf = NULL;
adapter->in_els_dbf = NULL;
}
void
zfcp_dummy_release(struct device *dev)
{
@ -1460,10 +1298,6 @@ zfcp_fsf_incoming_els_rscn(struct zfcp_adapter *adapter,
/* see FC-FS */
no_entries = (fcp_rscn_head->payload_len / 4);
zfcp_in_els_dbf_event(adapter, "##rscn", status_buffer,
fcp_rscn_head->payload_len);
debug_text_event(adapter->erp_dbf, 1, "unsol_els_rscn:");
for (i = 1; i < no_entries; i++) {
/* skip head and start with 1st element */
fcp_rscn_element++;
@ -1495,8 +1329,6 @@ zfcp_fsf_incoming_els_rscn(struct zfcp_adapter *adapter,
(ZFCP_STATUS_PORT_DID_DID, &port->status)) {
ZFCP_LOG_INFO("incoming RSCN, trying to open "
"port 0x%016Lx\n", port->wwpn);
debug_text_event(adapter->erp_dbf, 1,
"unsol_els_rscnu:");
zfcp_erp_port_reopen(port,
ZFCP_STATUS_COMMON_ERP_FAILED);
continue;
@ -1522,8 +1354,6 @@ zfcp_fsf_incoming_els_rscn(struct zfcp_adapter *adapter,
*/
ZFCP_LOG_INFO("incoming RSCN, trying to open "
"port 0x%016Lx\n", port->wwpn);
debug_text_event(adapter->erp_dbf, 1,
"unsol_els_rscnk:");
zfcp_test_link(port);
}
}
@ -1539,8 +1369,6 @@ zfcp_fsf_incoming_els_plogi(struct zfcp_adapter *adapter,
struct zfcp_port *port;
unsigned long flags;
zfcp_in_els_dbf_event(adapter, "##plogi", status_buffer, 28);
read_lock_irqsave(&zfcp_data.config_lock, flags);
list_for_each_entry(port, &adapter->port_list_head, list) {
if (port->wwpn == (*(wwn_t *) & els_logi->nport_wwn))
@ -1554,8 +1382,6 @@ zfcp_fsf_incoming_els_plogi(struct zfcp_adapter *adapter,
status_buffer->d_id,
zfcp_get_busid_by_adapter(adapter));
} else {
debug_text_event(adapter->erp_dbf, 1, "unsol_els_plogi:");
debug_event(adapter->erp_dbf, 1, &els_logi->nport_wwn, 8);
zfcp_erp_port_forced_reopen(port, 0);
}
}
@ -1568,8 +1394,6 @@ zfcp_fsf_incoming_els_logo(struct zfcp_adapter *adapter,
struct zfcp_port *port;
unsigned long flags;
zfcp_in_els_dbf_event(adapter, "##logo", status_buffer, 16);
read_lock_irqsave(&zfcp_data.config_lock, flags);
list_for_each_entry(port, &adapter->port_list_head, list) {
if (port->wwpn == els_logo->nport_wwpn)
@ -1583,8 +1407,6 @@ zfcp_fsf_incoming_els_logo(struct zfcp_adapter *adapter,
status_buffer->d_id,
zfcp_get_busid_by_adapter(adapter));
} else {
debug_text_event(adapter->erp_dbf, 1, "unsol_els_logo:");
debug_event(adapter->erp_dbf, 1, &els_logo->nport_wwpn, 8);
zfcp_erp_port_forced_reopen(port, 0);
}
}
@ -1593,7 +1415,6 @@ static void
zfcp_fsf_incoming_els_unknown(struct zfcp_adapter *adapter,
struct fsf_status_read_buffer *status_buffer)
{
zfcp_in_els_dbf_event(adapter, "##undef", status_buffer, 24);
ZFCP_LOG_NORMAL("warning: unknown incoming ELS 0x%08x "
"for adapter %s\n", *(u32 *) (status_buffer->payload),
zfcp_get_busid_by_adapter(adapter));
@ -1611,6 +1432,7 @@ zfcp_fsf_incoming_els(struct zfcp_fsf_req *fsf_req)
els_type = *(u32 *) (status_buffer->payload);
adapter = fsf_req->adapter;
zfcp_san_dbf_event_incoming_els(fsf_req);
if (els_type == LS_PLOGI)
zfcp_fsf_incoming_els_plogi(adapter, status_buffer);
else if (els_type == LS_LOGO)

988
drivers/s390/scsi/zfcp_dbf.c Normal file
View File

@ -0,0 +1,988 @@
/*
*
* linux/drivers/s390/scsi/zfcp_dbf.c
*
* FCP adapter driver for IBM eServer zSeries
*
* Debugging facilities
*
* (C) Copyright IBM Corp. 2005
*
* 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.
*/
#define ZFCP_DBF_REVISION "$Revision$"
#include <asm/debug.h>
#include <linux/ctype.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 inline int
zfcp_dbf_stck(char *out_buf, const char *label, unsigned long long stck)
{
unsigned long long sec;
struct timespec xtime;
int len = 0;
stck -= 0x8126d60e46000000LL - (0x3c26700LL * 1000000 * 4096);
sec = stck >> 12;
do_div(sec, 1000000);
xtime.tv_sec = sec;
stck -= (sec * 1000000) << 12;
xtime.tv_nsec = ((stck * 1000) >> 12);
len += sprintf(out_buf + len, "%-24s%011lu:%06lu\n",
label, xtime.tv_sec, xtime.tv_nsec);
return len;
}
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 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 inline 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;
if (strncmp(dump->tag, "dump", ZFCP_DBF_TAG_SIZE) != 0) {
len += zfcp_dbf_stck(out_buf + len, "timestamp",
entry->id.stck);
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;
}
inline 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 ((prot_status_qual->doubleword[0] != 0) ||
(prot_status_qual->doubleword[1] != 0) ||
(fsf_status_qual->doubleword[0] != 0) ||
(fsf_status_qual->doubleword[1] != 0)) {
strncpy(rec->tag2, "qual", ZFCP_DBF_TAG_SIZE);
level = 3;
} 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));
spin_unlock_irqrestore(&adapter->hba_dbf_lock, flags);
}
inline 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:
rec->type.status.payload_size = sizeof(u64);
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);
}
inline 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 inline int
zfcp_hba_dbf_view_response(char *out_buf,
struct zfcp_hba_dbf_record_response *rec)
{
int len = 0;
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);
len += zfcp_dbf_stck(out_buf + len, "fsf_issued", rec->fsf_issued);
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 inline 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 inline 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;
}
struct debug_view zfcp_hba_dbf_view = {
"structured",
NULL,
&zfcp_dbf_view_header,
&zfcp_hba_dbf_view_format,
NULL,
NULL
};
inline void
_zfcp_san_dbf_event_common_ct(const char *tag, struct zfcp_fsf_req *fsf_req,
fc_id_t s_id, fc_id_t 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);
}
inline 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, adapter->s_id, port->d_id,
zfcp_sg_to_address(ct->req),
ct->req->length);
}
inline 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, adapter->s_id,
zfcp_sg_to_address(ct->resp),
ct->resp->length);
}
static inline void
_zfcp_san_dbf_event_common_els(const char *tag, int level,
struct zfcp_fsf_req *fsf_req,
fc_id_t s_id, fc_id_t 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;
struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)rec;
unsigned long flags;
int offset = 0;
spin_lock_irqsave(&adapter->san_dbf_lock, flags);
do {
memset(rec, 0, sizeof(struct zfcp_san_dbf_record));
if (offset == 0) {
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;
buflen = min(buflen, ZFCP_DBF_ELS_MAX_PAYLOAD);
rec->type.els.payload_size = buflen;
memcpy(rec->type.els.payload,
buffer, min(buflen, ZFCP_DBF_ELS_PAYLOAD));
offset += min(buflen, ZFCP_DBF_ELS_PAYLOAD);
} 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_san_dbf_record)
- (int)sizeof(struct zfcp_dbf_dump));
memcpy(dump->data, buffer + offset, dump->size);
offset += dump->size;
}
debug_event(adapter->san_dbf, level,
rec, sizeof(struct zfcp_san_dbf_record));
} while (offset < buflen);
spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
}
inline 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, els->adapter->s_id, els->d_id,
*(u8 *) zfcp_sg_to_address(els->req),
zfcp_sg_to_address(els->req),
els->req->length);
}
inline 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, els->adapter->s_id,
*(u8 *) zfcp_sg_to_address(els->req),
zfcp_sg_to_address(els->resp),
els->resp->length);
}
inline 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,
adapter->s_id,
*(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;
}
struct debug_view zfcp_san_dbf_view = {
"structured",
NULL,
&zfcp_dbf_view_header,
&zfcp_san_dbf_view_format,
NULL,
NULL
};
static inline 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 *new_fsf_req)
{
struct zfcp_fsf_req *fsf_req =
(struct zfcp_fsf_req *)scsi_cmnd->host_scribble;
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->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;
}
if (new_fsf_req != NULL) {
rec->type.new_fsf_req.fsf_reqid =
(unsigned long)
new_fsf_req;
rec->type.new_fsf_req.fsf_seqno =
new_fsf_req->seq_no;
rec->type.new_fsf_req.fsf_issued =
new_fsf_req->issued;
}
} 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);
}
inline void
zfcp_scsi_dbf_event_result(const char *tag, int level,
struct zfcp_adapter *adapter,
struct scsi_cmnd *scsi_cmnd)
{
_zfcp_scsi_dbf_event_common("rslt",
tag, level, adapter, scsi_cmnd, NULL);
}
inline 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)
{
_zfcp_scsi_dbf_event_common("abrt",
tag, 1, adapter, scsi_cmnd, new_fsf_req);
}
inline 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);
}
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;
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);
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_stck(out_buf + len, "fsf_issued", rec->fsf_issued);
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);
} else if (strncmp(rec->tag, "abrt", ZFCP_DBF_TAG_SIZE) == 0) {
len += zfcp_dbf_view(out_buf + len, "fsf_reqid_abort", "0x%0Lx",
rec->type.new_fsf_req.fsf_reqid);
len += zfcp_dbf_view(out_buf + len, "fsf_seqno_abort", "0x%08x",
rec->type.new_fsf_req.fsf_seqno);
len += zfcp_dbf_stck(out_buf + len, "fsf_issued",
rec->type.new_fsf_req.fsf_issued);
} else if ((strncmp(rec->tag, "trst", ZFCP_DBF_TAG_SIZE) == 0) ||
(strncmp(rec->tag, "lrst", ZFCP_DBF_TAG_SIZE) == 0)) {
len += zfcp_dbf_view(out_buf + len, "fsf_reqid_reset", "0x%0Lx",
rec->type.new_fsf_req.fsf_reqid);
len += zfcp_dbf_view(out_buf + len, "fsf_seqno_reset", "0x%08x",
rec->type.new_fsf_req.fsf_seqno);
len += zfcp_dbf_stck(out_buf + len, "fsf_issued",
rec->type.new_fsf_req.fsf_issued);
}
len += sprintf(out_buf + len, "\n");
return len;
}
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 */
spin_lock_init(&adapter->erp_dbf_lock);
sprintf(dbf_name, "zfcp_%s_erp", zfcp_get_busid_by_adapter(adapter));
adapter->erp_dbf = debug_register(dbf_name, dbfsize, 2,
sizeof(struct zfcp_erp_dbf_record));
if (!adapter->erp_dbf)
goto failed;
debug_register_view(adapter->erp_dbf, &debug_hex_ascii_view);
debug_set_level(adapter->erp_dbf, 3);
/* debug feature area which records HBA (FSF and QDIO) conditions */
spin_lock_init(&adapter->hba_dbf_lock);
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 */
spin_lock_init(&adapter->san_dbf_lock);
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 */
spin_lock_init(&adapter->scsi_dbf_lock);
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->erp_dbf);
adapter->scsi_dbf = NULL;
adapter->san_dbf = NULL;
adapter->hba_dbf = NULL;
adapter->erp_dbf = NULL;
}
#undef ZFCP_LOG_AREA

213
drivers/s390/scsi/zfcp_def.h
View File

@ -66,7 +66,7 @@
/********************* GENERAL DEFINES *********************************/
/* zfcp version number, it consists of major, minor, and patch-level number */
#define ZFCP_VERSION "4.3.0"
#define ZFCP_VERSION "4.4.0"
/**
* zfcp_sg_to_address - determine kernel address from struct scatterlist
@ -280,6 +280,171 @@ struct fcp_logo {
wwn_t nport_wwpn;
} __attribute__((packed));
/*
* DBF stuff
*/
#define ZFCP_DBF_TAG_SIZE 4
struct zfcp_dbf_dump {
u8 tag[ZFCP_DBF_TAG_SIZE];
u32 total_size; /* size of total dump data */
u32 offset; /* how much data has being already dumped */
u32 size; /* how much data comes with this record */
u8 data[]; /* dump data */
} __attribute__ ((packed));
/* FIXME: to be inflated when reworking the erp dbf */
struct zfcp_erp_dbf_record {
u8 dummy[16];
} __attribute__ ((packed));
struct zfcp_hba_dbf_record_response {
u32 fsf_command;
u64 fsf_reqid;
u32 fsf_seqno;
u64 fsf_issued;
u32 fsf_prot_status;
u32 fsf_status;
u8 fsf_prot_status_qual[FSF_PROT_STATUS_QUAL_SIZE];
u8 fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
u32 fsf_req_status;
u8 sbal_first;
u8 sbal_curr;
u8 sbal_last;
u8 pool;
u64 erp_action;
union {
struct {
u64 scsi_cmnd;
u64 scsi_serial;
} send_fcp;
struct {
u64 wwpn;
u32 d_id;
u32 port_handle;
} port;
struct {
u64 wwpn;
u64 fcp_lun;
u32 port_handle;
u32 lun_handle;
} unit;
struct {
u32 d_id;
u8 ls_code;
} send_els;
} data;
} __attribute__ ((packed));
struct zfcp_hba_dbf_record_status {
u8 failed;
u32 status_type;
u32 status_subtype;
struct fsf_queue_designator
queue_designator;
u32 payload_size;
#define ZFCP_DBF_UNSOL_PAYLOAD 80
#define ZFCP_DBF_UNSOL_PAYLOAD_SENSE_DATA_AVAIL 32
#define ZFCP_DBF_UNSOL_PAYLOAD_BIT_ERROR_THRESHOLD 56
#define ZFCP_DBF_UNSOL_PAYLOAD_FEATURE_UPDATE_ALERT 2 * sizeof(u32)
u8 payload[ZFCP_DBF_UNSOL_PAYLOAD];
} __attribute__ ((packed));
struct zfcp_hba_dbf_record_qdio {
u32 status;
u32 qdio_error;
u32 siga_error;
u8 sbal_index;
u8 sbal_count;
} __attribute__ ((packed));
struct zfcp_hba_dbf_record {
u8 tag[ZFCP_DBF_TAG_SIZE];
u8 tag2[ZFCP_DBF_TAG_SIZE];
union {
struct zfcp_hba_dbf_record_response response;
struct zfcp_hba_dbf_record_status status;
struct zfcp_hba_dbf_record_qdio qdio;
} type;
} __attribute__ ((packed));
struct zfcp_san_dbf_record_ct {
union {
struct {
u16 cmd_req_code;
u8 revision;
u8 gs_type;
u8 gs_subtype;
u8 options;
u16 max_res_size;
} request;
struct {
u16 cmd_rsp_code;
u8 revision;
u8 reason_code;
u8 reason_code_expl;
u8 vendor_unique;
} response;
} type;
u32 payload_size;
#define ZFCP_DBF_CT_PAYLOAD 24
u8 payload[ZFCP_DBF_CT_PAYLOAD];
} __attribute__ ((packed));
struct zfcp_san_dbf_record_els {
u8 ls_code;
u32 payload_size;
#define ZFCP_DBF_ELS_PAYLOAD 32
#define ZFCP_DBF_ELS_MAX_PAYLOAD 1024
u8 payload[ZFCP_DBF_ELS_PAYLOAD];
} __attribute__ ((packed));
struct zfcp_san_dbf_record {
u8 tag[ZFCP_DBF_TAG_SIZE];
u64 fsf_reqid;
u32 fsf_seqno;
u32 s_id;
u32 d_id;
union {
struct zfcp_san_dbf_record_ct ct;
struct zfcp_san_dbf_record_els els;
} type;
} __attribute__ ((packed));
struct zfcp_scsi_dbf_record {
u8 tag[ZFCP_DBF_TAG_SIZE];
u8 tag2[ZFCP_DBF_TAG_SIZE];
u32 scsi_id;
u32 scsi_lun;
u32 scsi_result;
u64 scsi_cmnd;
u64 scsi_serial;
#define ZFCP_DBF_SCSI_OPCODE 16
u8 scsi_opcode[ZFCP_DBF_SCSI_OPCODE];
u8 scsi_retries;
u8 scsi_allowed;
u64 fsf_reqid;
u32 fsf_seqno;
u64 fsf_issued;
union {
struct {
u64 fsf_reqid;
u32 fsf_seqno;
u64 fsf_issued;
} new_fsf_req;
struct {
u8 rsp_validity;
u8 rsp_scsi_status;
u32 rsp_resid;
u8 rsp_code;
#define ZFCP_DBF_SCSI_FCP_SNS_INFO 16
#define ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO 256
u32 sns_info_len;
u8 sns_info[ZFCP_DBF_SCSI_FCP_SNS_INFO];
} fcp;
} type;
} __attribute__ ((packed));
/*
* FC-FS stuff
*/
@ -339,34 +504,6 @@ struct zfcp_rc_entry {
*/
#define ZFCP_CT_TIMEOUT (3 * R_A_TOV)
/***************** S390 DEBUG FEATURE SPECIFIC DEFINES ***********************/
/* debug feature entries per adapter */
#define ZFCP_ERP_DBF_INDEX 1
#define ZFCP_ERP_DBF_AREAS 2
#define ZFCP_ERP_DBF_LENGTH 16
#define ZFCP_ERP_DBF_LEVEL 3
#define ZFCP_ERP_DBF_NAME "zfcperp"
#define ZFCP_CMD_DBF_INDEX 2
#define ZFCP_CMD_DBF_AREAS 1
#define ZFCP_CMD_DBF_LENGTH 8
#define ZFCP_CMD_DBF_LEVEL 3
#define ZFCP_CMD_DBF_NAME "zfcpcmd"
#define ZFCP_ABORT_DBF_INDEX 2
#define ZFCP_ABORT_DBF_AREAS 1
#define ZFCP_ABORT_DBF_LENGTH 8
#define ZFCP_ABORT_DBF_LEVEL 6
#define ZFCP_ABORT_DBF_NAME "zfcpabt"
#define ZFCP_IN_ELS_DBF_INDEX 2
#define ZFCP_IN_ELS_DBF_AREAS 1
#define ZFCP_IN_ELS_DBF_LENGTH 8
#define ZFCP_IN_ELS_DBF_LEVEL 6
#define ZFCP_IN_ELS_DBF_NAME "zfcpels"
/******************** LOGGING MACROS AND DEFINES *****************************/
/*
@ -823,11 +960,18 @@ struct zfcp_adapter {
u32 erp_low_mem_count; /* nr of erp actions waiting
for memory */
struct zfcp_port *nameserver_port; /* adapter's nameserver */
debug_info_t *erp_dbf; /* S/390 debug features */
debug_info_t *abort_dbf;
debug_info_t *in_els_dbf;
debug_info_t *cmd_dbf;
spinlock_t dbf_lock;
debug_info_t *erp_dbf;
debug_info_t *hba_dbf;
debug_info_t *san_dbf; /* debug feature areas */
debug_info_t *scsi_dbf;
spinlock_t erp_dbf_lock;
spinlock_t hba_dbf_lock;
spinlock_t san_dbf_lock;
spinlock_t scsi_dbf_lock;
struct zfcp_erp_dbf_record erp_dbf_buf;
struct zfcp_hba_dbf_record hba_dbf_buf;
struct zfcp_san_dbf_record san_dbf_buf;
struct zfcp_scsi_dbf_record scsi_dbf_buf;
struct zfcp_adapter_mempool pool; /* Adapter memory pools */
struct qdio_initialize qdio_init_data; /* for qdio_establish */
struct device generic_services; /* directory for WKA ports */
@ -902,6 +1046,7 @@ struct zfcp_fsf_req {
issued on behalf of erp */
mempool_t *pool; /* used if request was alloacted
from emergency pool */
unsigned long long issued; /* request sent time (STCK) */
struct zfcp_unit *unit;
};

26
drivers/s390/scsi/zfcp_ext.h
View File

@ -181,9 +181,25 @@ extern void zfcp_erp_port_access_changed(struct zfcp_port *);
extern void zfcp_erp_unit_access_changed(struct zfcp_unit *);
/******************************** AUX ****************************************/
extern void zfcp_cmd_dbf_event_fsf(const char *, struct zfcp_fsf_req *,
void *, int);
extern void zfcp_cmd_dbf_event_scsi(const char *, struct scsi_cmnd *);
extern void zfcp_in_els_dbf_event(struct zfcp_adapter *, const char *,
struct fsf_status_read_buffer *, int);
extern void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *);
extern void zfcp_hba_dbf_event_fsf_unsol(const char *, struct zfcp_adapter *,
struct fsf_status_read_buffer *);
extern void zfcp_hba_dbf_event_qdio(struct zfcp_adapter *,
unsigned int, unsigned int, unsigned int,
int, int);
extern void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *);
extern void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *);
extern void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *);
extern void zfcp_san_dbf_event_els_response(struct zfcp_fsf_req *);
extern void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *);
extern void zfcp_scsi_dbf_event_result(const char *, int, struct zfcp_adapter *,
struct scsi_cmnd *);
extern void zfcp_scsi_dbf_event_abort(const char *, struct zfcp_adapter *,
struct scsi_cmnd *,
struct zfcp_fsf_req *);
extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *,
struct scsi_cmnd *);
#endif /* ZFCP_EXT_H */

241
drivers/s390/scsi/zfcp_fsf.c
View File

@ -285,51 +285,51 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req)
{
int retval = 0;
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;
ZFCP_LOG_DEBUG("QTCB is at %p\n", fsf_req->qtcb);
zfcp_hba_dbf_event_fsf_response(fsf_req);
if (fsf_req->status & ZFCP_STATUS_FSFREQ_DISMISSED) {
ZFCP_LOG_DEBUG("fsf_req 0x%lx has been dismissed\n",
(unsigned long) fsf_req);
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR |
ZFCP_STATUS_FSFREQ_RETRY; /* only for SCSI cmnds. */
zfcp_cmd_dbf_event_fsf("dismiss", fsf_req, NULL, 0);
goto skip_protstatus;
}
/* log additional information provided by FSF (if any) */
if (unlikely(fsf_req->qtcb->header.log_length)) {
if (unlikely(qtcb->header.log_length)) {
/* do not trust them ;-) */
if (fsf_req->qtcb->header.log_start > sizeof(struct fsf_qtcb)) {
if (qtcb->header.log_start > sizeof(struct fsf_qtcb)) {
ZFCP_LOG_NORMAL
("bug: ULP (FSF logging) log data starts "
"beyond end of packet header. Ignored. "
"(start=%i, size=%li)\n",
fsf_req->qtcb->header.log_start,
qtcb->header.log_start,
sizeof(struct fsf_qtcb));
goto forget_log;
}
if ((size_t) (fsf_req->qtcb->header.log_start +
fsf_req->qtcb->header.log_length)
if ((size_t) (qtcb->header.log_start + qtcb->header.log_length)
> sizeof(struct fsf_qtcb)) {
ZFCP_LOG_NORMAL("bug: ULP (FSF logging) log data ends "
"beyond end of packet header. Ignored. "
"(start=%i, length=%i, size=%li)\n",
fsf_req->qtcb->header.log_start,
fsf_req->qtcb->header.log_length,
qtcb->header.log_start,
qtcb->header.log_length,
sizeof(struct fsf_qtcb));
goto forget_log;
}
ZFCP_LOG_TRACE("ULP log data: \n");
ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_TRACE,
(char *) fsf_req->qtcb +
fsf_req->qtcb->header.log_start,
fsf_req->qtcb->header.log_length);
(char *) qtcb + qtcb->header.log_start,
qtcb->header.log_length);
}
forget_log:
/* evaluate FSF Protocol Status */
switch (fsf_req->qtcb->prefix.prot_status) {
switch (qtcb->prefix.prot_status) {
case FSF_PROT_GOOD:
case FSF_PROT_FSF_STATUS_PRESENTED:
@ -340,14 +340,9 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req)
"microcode of version 0x%x, the device driver "
"only supports 0x%x. Aborting.\n",
zfcp_get_busid_by_adapter(adapter),
fsf_req->qtcb->prefix.prot_status_qual.
version_error.fsf_version, ZFCP_QTCB_VERSION);
/* stop operation for this adapter */
debug_text_exception(adapter->erp_dbf, 0, "prot_ver_err");
prot_status_qual->version_error.fsf_version,
ZFCP_QTCB_VERSION);
zfcp_erp_adapter_shutdown(adapter, 0);
zfcp_cmd_dbf_event_fsf("qverserr", fsf_req,
&fsf_req->qtcb->prefix.prot_status_qual,
sizeof (union fsf_prot_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
@ -355,16 +350,10 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req)
ZFCP_LOG_NORMAL("bug: Sequence number mismatch between "
"driver (0x%x) and adapter %s (0x%x). "
"Restarting all operations on this adapter.\n",
fsf_req->qtcb->prefix.req_seq_no,
qtcb->prefix.req_seq_no,
zfcp_get_busid_by_adapter(adapter),
fsf_req->qtcb->prefix.prot_status_qual.
sequence_error.exp_req_seq_no);
debug_text_exception(adapter->erp_dbf, 0, "prot_seq_err");
/* restart operation on this adapter */
prot_status_qual->sequence_error.exp_req_seq_no);
zfcp_erp_adapter_reopen(adapter, 0);
zfcp_cmd_dbf_event_fsf("seqnoerr", fsf_req,
&fsf_req->qtcb->prefix.prot_status_qual,
sizeof (union fsf_prot_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_RETRY;
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
@ -375,22 +364,14 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req)
"that used on adapter %s. "
"Stopping all operations on this adapter.\n",
zfcp_get_busid_by_adapter(adapter));
debug_text_exception(adapter->erp_dbf, 0, "prot_unsup_qtcb");
zfcp_erp_adapter_shutdown(adapter, 0);
zfcp_cmd_dbf_event_fsf("unsqtcbt", fsf_req,
&fsf_req->qtcb->prefix.prot_status_qual,
sizeof (union fsf_prot_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_PROT_HOST_CONNECTION_INITIALIZING:
zfcp_cmd_dbf_event_fsf("hconinit", fsf_req,
&fsf_req->qtcb->prefix.prot_status_qual,
sizeof (union fsf_prot_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT,
&(adapter->status));
debug_text_event(adapter->erp_dbf, 3, "prot_con_init");
break;
case FSF_PROT_DUPLICATE_REQUEST_ID:
@ -413,11 +394,7 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req)
fsf_req,
zfcp_get_busid_by_adapter(adapter));
}
debug_text_exception(adapter->erp_dbf, 0, "prot_dup_id");
zfcp_erp_adapter_shutdown(adapter, 0);
zfcp_cmd_dbf_event_fsf("dupreqid", fsf_req,
&fsf_req->qtcb->prefix.prot_status_qual,
sizeof (union fsf_prot_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
@ -483,8 +460,7 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req)
break;
case FSF_PROT_REEST_QUEUE:
debug_text_event(adapter->erp_dbf, 1, "prot_reest_queue");
ZFCP_LOG_INFO("The local link to adapter with "
ZFCP_LOG_NORMAL("The local link to adapter with "
"%s was re-plugged. "
"Re-starting operations on this adapter.\n",
zfcp_get_busid_by_adapter(adapter));
@ -495,9 +471,6 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req)
zfcp_erp_adapter_reopen(adapter,
ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED
| ZFCP_STATUS_COMMON_ERP_FAILED);
zfcp_cmd_dbf_event_fsf("reestque", fsf_req,
&fsf_req->qtcb->prefix.prot_status_qual,
sizeof (union fsf_prot_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
@ -507,12 +480,7 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req)
"Restarting all operations on this "
"adapter.\n",
zfcp_get_busid_by_adapter(adapter));
debug_text_event(adapter->erp_dbf, 0, "prot_err_sta");
/* restart operation on this adapter */
zfcp_erp_adapter_reopen(adapter, 0);
zfcp_cmd_dbf_event_fsf("proterrs", fsf_req,
&fsf_req->qtcb->prefix.prot_status_qual,
sizeof (union fsf_prot_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_RETRY;
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
@ -524,11 +492,7 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req)
"Stopping all operations on this adapter. "
"(debug info 0x%x).\n",
zfcp_get_busid_by_adapter(adapter),
fsf_req->qtcb->prefix.prot_status);
debug_text_event(adapter->erp_dbf, 0, "prot_inval:");
debug_exception(adapter->erp_dbf, 0,
&fsf_req->qtcb->prefix.prot_status,
sizeof (u32));
qtcb->prefix.prot_status);
zfcp_erp_adapter_shutdown(adapter, 0);
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
}
@ -568,28 +532,18 @@ zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *fsf_req)
"(debug info 0x%x).\n",
zfcp_get_busid_by_adapter(fsf_req->adapter),
fsf_req->qtcb->header.fsf_command);
debug_text_exception(fsf_req->adapter->erp_dbf, 0,
"fsf_s_unknown");
zfcp_erp_adapter_shutdown(fsf_req->adapter, 0);
zfcp_cmd_dbf_event_fsf("unknownc", fsf_req,
&fsf_req->qtcb->header.fsf_status_qual,
sizeof (union fsf_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_FCP_RSP_AVAILABLE:
ZFCP_LOG_DEBUG("FCP Sense data will be presented to the "
"SCSI stack.\n");
debug_text_event(fsf_req->adapter->erp_dbf, 3, "fsf_s_rsp");
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
debug_text_event(fsf_req->adapter->erp_dbf, 2, "fsf_s_astatus");
zfcp_fsf_fsfstatus_qual_eval(fsf_req);
break;
default:
break;
}
skip_fsfstatus:
@ -617,44 +571,28 @@ zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *fsf_req)
switch (fsf_req->qtcb->header.fsf_status_qual.word[0]) {
case FSF_SQ_FCP_RSP_AVAILABLE:
debug_text_event(fsf_req->adapter->erp_dbf, 4, "fsf_sq_rsp");
break;
case FSF_SQ_RETRY_IF_POSSIBLE:
/* The SCSI-stack may now issue retries or escalate */
debug_text_event(fsf_req->adapter->erp_dbf, 2, "fsf_sq_retry");
zfcp_cmd_dbf_event_fsf("sqretry", fsf_req,
&fsf_req->qtcb->header.fsf_status_qual,
sizeof (union fsf_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_SQ_COMMAND_ABORTED:
/* Carry the aborted state on to upper layer */
debug_text_event(fsf_req->adapter->erp_dbf, 2, "fsf_sq_abort");
zfcp_cmd_dbf_event_fsf("sqabort", fsf_req,
&fsf_req->qtcb->header.fsf_status_qual,
sizeof (union fsf_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ABORTED;
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_SQ_NO_RECOM:
debug_text_exception(fsf_req->adapter->erp_dbf, 0,
"fsf_sq_no_rec");
ZFCP_LOG_NORMAL("bug: No recommendation could be given for a"
"problem on the adapter %s "
"Stopping all operations on this adapter. ",
zfcp_get_busid_by_adapter(fsf_req->adapter));
zfcp_erp_adapter_shutdown(fsf_req->adapter, 0);
zfcp_cmd_dbf_event_fsf("sqnrecom", fsf_req,
&fsf_req->qtcb->header.fsf_status_qual,
sizeof (union fsf_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_SQ_ULP_PROGRAMMING_ERROR:
ZFCP_LOG_NORMAL("error: not enough SBALs for data transfer "
"(adapter %s)\n",
zfcp_get_busid_by_adapter(fsf_req->adapter));
debug_text_exception(fsf_req->adapter->erp_dbf, 0,
"fsf_sq_ulp_err");
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
@ -668,13 +606,6 @@ zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *fsf_req)
ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_NORMAL,
(char *) &fsf_req->qtcb->header.fsf_status_qual,
sizeof (union fsf_status_qual));
debug_text_event(fsf_req->adapter->erp_dbf, 0, "fsf_sq_inval:");
debug_exception(fsf_req->adapter->erp_dbf, 0,
&fsf_req->qtcb->header.fsf_status_qual.word[0],
sizeof (u32));
zfcp_cmd_dbf_event_fsf("squndef", fsf_req,
&fsf_req->qtcb->header.fsf_status_qual,
sizeof (union fsf_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
}
@ -696,11 +627,6 @@ zfcp_fsf_req_dispatch(struct zfcp_fsf_req *fsf_req)
struct zfcp_adapter *adapter = fsf_req->adapter;
int retval = 0;
if (unlikely(fsf_req->status & ZFCP_STATUS_FSFREQ_ERROR)) {
ZFCP_LOG_TRACE("fsf_req=%p, QTCB=%p\n", fsf_req, fsf_req->qtcb);
ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_TRACE,
(char *) fsf_req->qtcb, sizeof(struct fsf_qtcb));
}
switch (fsf_req->fsf_command) {
@ -760,13 +686,13 @@ zfcp_fsf_req_dispatch(struct zfcp_fsf_req *fsf_req)
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
ZFCP_LOG_NORMAL("bug: Command issued by the device driver is "
"not supported by the adapter %s\n",
zfcp_get_busid_by_adapter(fsf_req->adapter));
zfcp_get_busid_by_adapter(adapter));
if (fsf_req->fsf_command != fsf_req->qtcb->header.fsf_command)
ZFCP_LOG_NORMAL
("bug: Command issued by the device driver differs "
"from the command returned by the adapter %s "
"(debug info 0x%x, 0x%x).\n",
zfcp_get_busid_by_adapter(fsf_req->adapter),
zfcp_get_busid_by_adapter(adapter),
fsf_req->fsf_command,
fsf_req->qtcb->header.fsf_command);
}
@ -774,8 +700,6 @@ zfcp_fsf_req_dispatch(struct zfcp_fsf_req *fsf_req)
if (!erp_action)
return retval;
debug_text_event(adapter->erp_dbf, 3, "a_frh");
debug_event(adapter->erp_dbf, 3, &erp_action->action, sizeof (int));
zfcp_erp_async_handler(erp_action, 0);
return retval;
@ -846,6 +770,7 @@ zfcp_fsf_status_read(struct zfcp_adapter *adapter, int req_flags)
failed_buf:
zfcp_fsf_req_free(fsf_req);
failed_req_create:
zfcp_hba_dbf_event_fsf_unsol("fail", adapter, NULL);
out:
write_unlock_irqrestore(&adapter->request_queue.queue_lock, lock_flags);
return retval;
@ -921,35 +846,30 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req)
(struct fsf_status_read_buffer *) fsf_req->data;
if (fsf_req->status & ZFCP_STATUS_FSFREQ_DISMISSED) {
zfcp_hba_dbf_event_fsf_unsol("dism", adapter, status_buffer);
mempool_free(status_buffer, adapter->pool.data_status_read);
zfcp_fsf_req_free(fsf_req);
goto out;
}
zfcp_hba_dbf_event_fsf_unsol("read", adapter, status_buffer);
switch (status_buffer->status_type) {
case FSF_STATUS_READ_PORT_CLOSED:
debug_text_event(adapter->erp_dbf, 3, "unsol_pclosed:");
debug_event(adapter->erp_dbf, 3,
&status_buffer->d_id, sizeof (u32));
zfcp_fsf_status_read_port_closed(fsf_req);
break;
case FSF_STATUS_READ_INCOMING_ELS:
debug_text_event(adapter->erp_dbf, 3, "unsol_els:");
zfcp_fsf_incoming_els(fsf_req);
break;
case FSF_STATUS_READ_SENSE_DATA_AVAIL:
debug_text_event(adapter->erp_dbf, 3, "unsol_sense:");
ZFCP_LOG_INFO("unsolicited sense data received (adapter %s)\n",
zfcp_get_busid_by_adapter(adapter));
ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_NORMAL, (char *) status_buffer,
sizeof(struct fsf_status_read_buffer));
break;
case FSF_STATUS_READ_BIT_ERROR_THRESHOLD:
debug_text_event(adapter->erp_dbf, 3, "unsol_bit_err:");
ZFCP_LOG_NORMAL("Bit error threshold data received:\n");
ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_NORMAL,
(char *) status_buffer,
@ -980,35 +900,30 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req)
break;
case FSF_STATUS_READ_CFDC_UPDATED:
debug_text_event(adapter->erp_dbf, 2, "unsol_cfdc_update:");
ZFCP_LOG_INFO("CFDC has been updated on the adapter %s\n",
ZFCP_LOG_NORMAL("CFDC has been updated on the adapter %s\n",
zfcp_get_busid_by_adapter(adapter));
zfcp_erp_adapter_access_changed(adapter);
break;
case FSF_STATUS_READ_CFDC_HARDENED:
debug_text_event(adapter->erp_dbf, 2, "unsol_cfdc_harden:");
switch (status_buffer->status_subtype) {
case FSF_STATUS_READ_SUB_CFDC_HARDENED_ON_SE:
ZFCP_LOG_INFO("CFDC of adapter %s saved on SE\n",
ZFCP_LOG_NORMAL("CFDC of adapter %s saved on SE\n",
zfcp_get_busid_by_adapter(adapter));
break;
case FSF_STATUS_READ_SUB_CFDC_HARDENED_ON_SE2:
ZFCP_LOG_INFO("CFDC of adapter %s has been copied "
ZFCP_LOG_NORMAL("CFDC of adapter %s has been copied "
"to the secondary SE\n",
zfcp_get_busid_by_adapter(adapter));
break;
default:
ZFCP_LOG_INFO("CFDC of adapter %s has been hardened\n",
ZFCP_LOG_NORMAL("CFDC of adapter %s has been hardened\n",
zfcp_get_busid_by_adapter(adapter));
}
break;
default:
debug_text_event(adapter->erp_dbf, 0, "unsol_unknown:");
debug_exception(adapter->erp_dbf, 0,
&status_buffer->status_type, sizeof (u32));
ZFCP_LOG_NORMAL("bug: An unsolicited status packet of unknown "
ZFCP_LOG_NORMAL("warning: An unsolicited status packet of unknown "
"type was received (debug info 0x%x)\n",
status_buffer->status_type);
ZFCP_LOG_DEBUG("Dump of status_read_buffer %p:\n",
@ -1418,6 +1333,8 @@ zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool,
fsf_req->qtcb->bottom.support.timeout = ct->timeout;
fsf_req->data = (unsigned long) ct;
zfcp_san_dbf_event_ct_request(fsf_req);
/* start QDIO request for this FSF request */
ret = zfcp_fsf_req_send(fsf_req, ct->timer);
if (ret) {
@ -1476,6 +1393,7 @@ zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *fsf_req)
switch (header->fsf_status) {
case FSF_GOOD:
zfcp_san_dbf_event_ct_response(fsf_req);
retval = 0;
break;
@ -1720,6 +1638,8 @@ zfcp_fsf_send_els(struct zfcp_send_els *els)
sbale = zfcp_qdio_sbale_req(fsf_req, fsf_req->sbal_curr, 0);
zfcp_san_dbf_event_els_request(fsf_req);
/* start QDIO request for this FSF request */
ret = zfcp_fsf_req_send(fsf_req, els->timer);
if (ret) {
@ -1777,6 +1697,7 @@ static int zfcp_fsf_send_els_handler(struct zfcp_fsf_req *fsf_req)
switch (header->fsf_status) {
case FSF_GOOD:
zfcp_san_dbf_event_els_response(fsf_req);
retval = 0;
break;
@ -3309,9 +3230,6 @@ zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *fsf_req)
debug_text_event(fsf_req->adapter->erp_dbf, 1,
"fsf_s_phand_nv");
zfcp_erp_adapter_reopen(unit->port->adapter, 0);
zfcp_cmd_dbf_event_fsf("porthinv", fsf_req,
&fsf_req->qtcb->header.fsf_status_qual,
sizeof (union fsf_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
@ -3330,9 +3248,6 @@ zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *fsf_req)
debug_text_event(fsf_req->adapter->erp_dbf, 1,
"fsf_s_lhand_nv");
zfcp_erp_port_reopen(unit->port, 0);
zfcp_cmd_dbf_event_fsf("lunhinv", fsf_req,
&fsf_req->qtcb->header.fsf_status_qual,
sizeof (union fsf_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
@ -3763,10 +3678,6 @@ zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *fsf_req)
debug_text_event(fsf_req->adapter->erp_dbf, 1,
"fsf_s_hand_mis");
zfcp_erp_adapter_reopen(unit->port->adapter, 0);
zfcp_cmd_dbf_event_fsf("handmism",
fsf_req,
&header->fsf_status_qual,
sizeof (union fsf_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
@ -3787,10 +3698,6 @@ zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *fsf_req)
debug_text_exception(fsf_req->adapter->erp_dbf, 0,
"fsf_s_class_nsup");
zfcp_erp_adapter_shutdown(unit->port->adapter, 0);
zfcp_cmd_dbf_event_fsf("unsclass",
fsf_req,
&header->fsf_status_qual,
sizeof (union fsf_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
@ -3809,10 +3716,6 @@ zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *fsf_req)
debug_text_event(fsf_req->adapter->erp_dbf, 1,
"fsf_s_fcp_lun_nv");
zfcp_erp_port_reopen(unit->port, 0);
zfcp_cmd_dbf_event_fsf("fluninv",
fsf_req,
&header->fsf_status_qual,
sizeof (union fsf_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
@ -3851,10 +3754,6 @@ zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *fsf_req)
debug_text_event(fsf_req->adapter->erp_dbf, 0,
"fsf_s_dir_ind_nv");
zfcp_erp_adapter_shutdown(unit->port->adapter, 0);
zfcp_cmd_dbf_event_fsf("dirinv",
fsf_req,
&header->fsf_status_qual,
sizeof (union fsf_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
@ -3870,10 +3769,6 @@ zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *fsf_req)
debug_text_event(fsf_req->adapter->erp_dbf, 0,
"fsf_s_cmd_len_nv");
zfcp_erp_adapter_shutdown(unit->port->adapter, 0);
zfcp_cmd_dbf_event_fsf("cleninv",
fsf_req,
&header->fsf_status_qual,
sizeof (union fsf_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
@ -4043,7 +3938,6 @@ zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *fsf_req)
ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_DEBUG,
(char *) &fsf_req->qtcb->
bottom.io.fcp_cmnd, FSF_FCP_CMND_SIZE);
zfcp_cmd_dbf_event_fsf("clenmis", fsf_req, NULL, 0);
set_host_byte(&scpnt->result, DID_ERROR);
goto skip_fsfstatus;
case RSP_CODE_FIELD_INVALID:
@ -4062,7 +3956,6 @@ zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *fsf_req)
(char *) &fsf_req->qtcb->
bottom.io.fcp_cmnd, FSF_FCP_CMND_SIZE);
set_host_byte(&scpnt->result, DID_ERROR);
zfcp_cmd_dbf_event_fsf("codeinv", fsf_req, NULL, 0);
goto skip_fsfstatus;
case RSP_CODE_RO_MISMATCH:
/* hardware bug */
@ -4079,7 +3972,6 @@ zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *fsf_req)
ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_DEBUG,
(char *) &fsf_req->qtcb->
bottom.io.fcp_cmnd, FSF_FCP_CMND_SIZE);
zfcp_cmd_dbf_event_fsf("codemism", fsf_req, NULL, 0);
set_host_byte(&scpnt->result, DID_ERROR);
goto skip_fsfstatus;
default:
@ -4096,7 +3988,6 @@ zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *fsf_req)
ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_DEBUG,
(char *) &fsf_req->qtcb->
bottom.io.fcp_cmnd, FSF_FCP_CMND_SIZE);
zfcp_cmd_dbf_event_fsf("undeffcp", fsf_req, NULL, 0);
set_host_byte(&scpnt->result, DID_ERROR);
goto skip_fsfstatus;
}
@ -4158,19 +4049,17 @@ zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *fsf_req)
skip_fsfstatus:
ZFCP_LOG_DEBUG("scpnt->result =0x%x\n", scpnt->result);
zfcp_cmd_dbf_event_scsi("response", scpnt);
if (scpnt->result != 0)
zfcp_scsi_dbf_event_result("erro", 3, fsf_req->adapter, scpnt);
else if (scpnt->retries > 0)
zfcp_scsi_dbf_event_result("retr", 4, fsf_req->adapter, scpnt);
else
zfcp_scsi_dbf_event_result("norm", 6, fsf_req->adapter, scpnt);
/* cleanup pointer (need this especially for abort) */
scpnt->host_scribble = NULL;
/*
* NOTE:
* according to the outcome of a discussion on linux-scsi we
* don't need to grab the io_request_lock here since we use
* the new eh
*/
/* always call back */
(scpnt->scsi_done) (scpnt);
/*
@ -4563,15 +4452,16 @@ zfcp_fsf_req_sbal_check(unsigned long *flags,
* set qtcb pointer in fsf_req and initialize QTCB
*/
static inline void
zfcp_fsf_req_qtcb_init(struct zfcp_fsf_req *fsf_req, u32 fsf_cmd)
zfcp_fsf_req_qtcb_init(struct zfcp_fsf_req *fsf_req)
{
if (likely(fsf_req->qtcb != NULL)) {
fsf_req->qtcb->prefix.req_seq_no = fsf_req->adapter->fsf_req_seq_no;
fsf_req->qtcb->prefix.req_id = (unsigned long)fsf_req;
fsf_req->qtcb->prefix.ulp_info = ZFCP_ULP_INFO_VERSION;
fsf_req->qtcb->prefix.qtcb_type = fsf_qtcb_type[fsf_cmd];
fsf_req->qtcb->prefix.qtcb_type = fsf_qtcb_type[fsf_req->fsf_command];
fsf_req->qtcb->prefix.qtcb_version = ZFCP_QTCB_VERSION;
fsf_req->qtcb->header.req_handle = (unsigned long)fsf_req;
fsf_req->qtcb->header.fsf_command = fsf_cmd;
fsf_req->qtcb->header.fsf_command = fsf_req->fsf_command;
}
}
@ -4639,7 +4529,10 @@ zfcp_fsf_req_create(struct zfcp_adapter *adapter, u32 fsf_cmd, int req_flags,
goto failed_fsf_req;
}
zfcp_fsf_req_qtcb_init(fsf_req, fsf_cmd);
fsf_req->adapter = adapter;
fsf_req->fsf_command = fsf_cmd;
zfcp_fsf_req_qtcb_init(fsf_req);
/* initialize waitqueue which may be used to wait on
this request completion */
@ -4661,8 +4554,10 @@ zfcp_fsf_req_create(struct zfcp_adapter *adapter, u32 fsf_cmd, int req_flags,
goto failed_sbals;
}
fsf_req->adapter = adapter; /* pointer to "parent" adapter */
fsf_req->fsf_command = fsf_cmd;
if (fsf_req->qtcb) {
fsf_req->seq_no = adapter->fsf_req_seq_no;
fsf_req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no;
}
fsf_req->sbal_number = 1;
fsf_req->sbal_first = req_queue->free_index;
fsf_req->sbal_curr = req_queue->free_index;
@ -4713,9 +4608,9 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer)
struct zfcp_adapter *adapter;
struct zfcp_qdio_queue *req_queue;
volatile struct qdio_buffer_element *sbale;
int inc_seq_no;
int new_distance_from_int;
unsigned long flags;
int inc_seq_no = 1;
int retval = 0;
adapter = fsf_req->adapter;
@ -4729,23 +4624,13 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer)
ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_TRACE, (char *) sbale[1].addr,
sbale[1].length);
/* set sequence counter in QTCB */
if (likely(fsf_req->qtcb)) {
fsf_req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no;
fsf_req->seq_no = adapter->fsf_req_seq_no;
ZFCP_LOG_TRACE("FSF request %p of adapter %s gets "
"FSF sequence counter value of %i\n",
fsf_req,
zfcp_get_busid_by_adapter(adapter),
fsf_req->qtcb->prefix.req_seq_no);
} else
inc_seq_no = 0;
/* put allocated FSF request at list tail */
spin_lock_irqsave(&adapter->fsf_req_list_lock, flags);
list_add_tail(&fsf_req->list, &adapter->fsf_req_list_head);
spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
inc_seq_no = (fsf_req->qtcb != NULL);
/* figure out expiration time of timeout and start timeout */
if (unlikely(timer)) {
timer->expires += jiffies;
@ -4775,6 +4660,8 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer)
req_queue->free_index %= QDIO_MAX_BUFFERS_PER_Q; /* wrap if needed */
new_distance_from_int = zfcp_qdio_determine_pci(req_queue, fsf_req);
fsf_req->issued = get_clock();
retval = do_QDIO(adapter->ccw_device,
QDIO_FLAG_SYNC_OUTPUT,
0, fsf_req->sbal_first, fsf_req->sbal_number, NULL);
@ -4813,15 +4700,11 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer)
* routines resulting in missing sequence counter values
* otherwise,
*/
/* Don't increase for unsolicited status */
if (likely(inc_seq_no)) {
if (inc_seq_no)
adapter->fsf_req_seq_no++;
ZFCP_LOG_TRACE
("FSF sequence counter value of adapter %s "
"increased to %i\n",
zfcp_get_busid_by_adapter(adapter),
adapter->fsf_req_seq_no);
}
/* count FSF requests pending */
atomic_inc(&adapter->fsf_reqs_active);
}

3
drivers/s390/scsi/zfcp_fsf.h
View File

@ -116,6 +116,7 @@
#define FSF_INVALID_COMMAND_OPTION 0x000000E5
/* #define FSF_ERROR 0x000000FF */
#define FSF_PROT_STATUS_QUAL_SIZE 16
#define FSF_STATUS_QUALIFIER_SIZE 16
/* FSF status qualifier, recommendations */
@ -311,6 +312,7 @@ struct fsf_qual_locallink_error {
} __attribute__ ((packed));
union fsf_prot_status_qual {
u64 doubleword[FSF_PROT_STATUS_QUAL_SIZE / sizeof(u64)];
struct fsf_qual_version_error version_error;
struct fsf_qual_sequence_error sequence_error;
struct fsf_qual_locallink_error locallink_error;
@ -331,6 +333,7 @@ union fsf_status_qual {
u8 byte[FSF_STATUS_QUALIFIER_SIZE];
u16 halfword[FSF_STATUS_QUALIFIER_SIZE / sizeof (u16)];
u32 word[FSF_STATUS_QUALIFIER_SIZE / sizeof (u32)];
u64 doubleword[FSF_STATUS_QUALIFIER_SIZE / sizeof(u64)];
struct fsf_queue_designator fsf_queue_designator;
} __attribute__ ((packed));

30
drivers/s390/scsi/zfcp_qdio.c
View File

@ -54,8 +54,7 @@ static inline int zfcp_qdio_sbals_from_buffer
static qdio_handler_t zfcp_qdio_request_handler;
static qdio_handler_t zfcp_qdio_response_handler;
static int zfcp_qdio_handler_error_check(struct zfcp_adapter *,
unsigned int,
unsigned int, unsigned int);
unsigned int, unsigned int, unsigned int, int, int);
#define ZFCP_LOG_AREA ZFCP_LOG_AREA_QDIO
@ -214,22 +213,12 @@ zfcp_qdio_allocate(struct zfcp_adapter *adapter)
*
*/
static inline int
zfcp_qdio_handler_error_check(struct zfcp_adapter *adapter,
unsigned int status,
unsigned int qdio_error, unsigned int siga_error)
zfcp_qdio_handler_error_check(struct zfcp_adapter *adapter, unsigned int status,
unsigned int qdio_error, unsigned int siga_error,
int first_element, int elements_processed)
{
int retval = 0;
if (ZFCP_LOG_CHECK(ZFCP_LOG_LEVEL_TRACE)) {
if (status & QDIO_STATUS_INBOUND_INT) {
ZFCP_LOG_TRACE("status is"
" QDIO_STATUS_INBOUND_INT \n");
}
if (status & QDIO_STATUS_OUTBOUND_INT) {
ZFCP_LOG_TRACE("status is"
" QDIO_STATUS_OUTBOUND_INT \n");
}
}
if (unlikely(status & QDIO_STATUS_LOOK_FOR_ERROR)) {
retval = -EIO;
@ -237,9 +226,10 @@ zfcp_qdio_handler_error_check(struct zfcp_adapter *adapter,
"qdio_error=0x%x, siga_error=0x%x)\n",
status, qdio_error, siga_error);
/* Restarting IO on the failed adapter from scratch */
debug_text_event(adapter->erp_dbf, 1, "qdio_err");
zfcp_hba_dbf_event_qdio(adapter, status, qdio_error, siga_error,
first_element, elements_processed);
/*
* Restarting IO on the failed adapter from scratch.
* Since we have been using this adapter, it is save to assume
* that it is not failed but recoverable. The card seems to
* report link-up events by self-initiated queue shutdown.
@ -282,7 +272,8 @@ zfcp_qdio_request_handler(struct ccw_device *ccw_device,
first_element, elements_processed);
if (unlikely(zfcp_qdio_handler_error_check(adapter, status, qdio_error,
siga_error)))
siga_error, first_element,
elements_processed)))
goto out;
/*
* we stored address of struct zfcp_adapter data structure
@ -334,7 +325,8 @@ zfcp_qdio_response_handler(struct ccw_device *ccw_device,
queue = &adapter->response_queue;
if (unlikely(zfcp_qdio_handler_error_check(adapter, status, qdio_error,
siga_error)))
siga_error, first_element,
elements_processed)))
goto out;
/*

49
drivers/s390/scsi/zfcp_scsi.c
View File

@ -44,7 +44,8 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *);
static int zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *);
static int zfcp_scsi_eh_bus_reset_handler(struct scsi_cmnd *);
static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *);
static int zfcp_task_management_function(struct zfcp_unit *, u8);
static int zfcp_task_management_function(struct zfcp_unit *, u8,
struct scsi_cmnd *);
static struct zfcp_unit *zfcp_unit_lookup(struct zfcp_adapter *, int, scsi_id_t,
scsi_lun_t);
@ -242,7 +243,10 @@ static void
zfcp_scsi_command_fail(struct scsi_cmnd *scpnt, int result)
{
set_host_byte(&scpnt->result, result);
zfcp_cmd_dbf_event_scsi("failing", scpnt);
if ((scpnt->device != NULL) && (scpnt->device->host != NULL))
zfcp_scsi_dbf_event_result("fail", 4,
(struct zfcp_adapter*) scpnt->device->host->hostdata[0],
scpnt);
/* return directly */
scpnt->scsi_done(scpnt);
}
@ -434,7 +438,8 @@ zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
struct zfcp_adapter *adapter;
struct zfcp_unit *unit;
int retval = SUCCESS;
struct zfcp_fsf_req *new_fsf_req, *old_fsf_req;
struct zfcp_fsf_req *new_fsf_req = NULL;
struct zfcp_fsf_req *old_fsf_req;
unsigned long flags;
scsi_host = scpnt->device->host;
@ -457,11 +462,8 @@ zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
old_fsf_req = (struct zfcp_fsf_req *) scpnt->host_scribble;
if (!old_fsf_req) {
write_unlock_irqrestore(&adapter->abort_lock, flags);
ZFCP_LOG_NORMAL("bug: no old fsf request found\n");
ZFCP_LOG_NORMAL("scsi_cmnd:\n");
ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_NORMAL,
(char *) scpnt, sizeof (struct scsi_cmnd));
retval = FAILED;
zfcp_scsi_dbf_event_abort("lte1", adapter, scpnt, new_fsf_req);
retval = SUCCESS;
goto out;
}
old_fsf_req->data = 0;
@ -473,25 +475,27 @@ zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
new_fsf_req = zfcp_fsf_abort_fcp_command((unsigned long) old_fsf_req,
adapter, unit, 0);
if (!new_fsf_req) {
ZFCP_LOG_INFO("error: initiation of Abort FCP Cmnd failed\n");
retval = FAILED;
ZFCP_LOG_NORMAL("error: initiation of Abort FCP Cmnd "
"failed\n");
goto out;
}
/* wait for completion of abort */
__wait_event(new_fsf_req->completion_wq,
new_fsf_req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
zfcp_fsf_req_free(new_fsf_req);
/* status should be valid since signals were not permitted */
if (new_fsf_req->status & ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED) {
zfcp_scsi_dbf_event_abort("okay", adapter, scpnt, new_fsf_req);
retval = SUCCESS;
} else if (new_fsf_req->status & ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED) {
zfcp_scsi_dbf_event_abort("lte2", adapter, scpnt, new_fsf_req);
retval = SUCCESS;
} else {
zfcp_scsi_dbf_event_abort("fail", adapter, scpnt, new_fsf_req);
retval = FAILED;
}
zfcp_fsf_req_free(new_fsf_req);
out:
return retval;
}
@ -525,8 +529,9 @@ zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *scpnt)
*/
if (!atomic_test_mask(ZFCP_STATUS_UNIT_NOTSUPPUNITRESET,
&unit->status)) {
retval =
zfcp_task_management_function(unit, FCP_LOGICAL_UNIT_RESET);
retval = zfcp_task_management_function(unit,
FCP_LOGICAL_UNIT_RESET,
scpnt);
if (retval) {
ZFCP_LOG_DEBUG("unit reset failed (unit=%p)\n", unit);
if (retval == -ENOTSUPP)
@ -542,7 +547,7 @@ zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *scpnt)
goto out;
}
}
retval = zfcp_task_management_function(unit, FCP_TARGET_RESET);
retval = zfcp_task_management_function(unit, FCP_TARGET_RESET, scpnt);
if (retval) {
ZFCP_LOG_DEBUG("target reset failed (unit=%p)\n", unit);
retval = FAILED;
@ -555,7 +560,8 @@ zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *scpnt)
}
static int
zfcp_task_management_function(struct zfcp_unit *unit, u8 tm_flags)
zfcp_task_management_function(struct zfcp_unit *unit, u8 tm_flags,
struct scsi_cmnd *scpnt)
{
struct zfcp_adapter *adapter = unit->port->adapter;
struct zfcp_fsf_req *fsf_req;
@ -569,6 +575,7 @@ zfcp_task_management_function(struct zfcp_unit *unit, u8 tm_flags)
"failed for unit 0x%016Lx on port 0x%016Lx on "
"adapter %s\n", unit->fcp_lun, unit->port->wwpn,
zfcp_get_busid_by_adapter(adapter));
zfcp_scsi_dbf_event_devreset("nres", tm_flags, unit, scpnt);
retval = -ENOMEM;
goto out;
}
@ -576,11 +583,17 @@ zfcp_task_management_function(struct zfcp_unit *unit, u8 tm_flags)
__wait_event(fsf_req->completion_wq,
fsf_req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
/* check completion status of task management function */
if (fsf_req->status & ZFCP_STATUS_FSFREQ_TMFUNCFAILED)
/*
* check completion status of task management function
*/
if (fsf_req->status & ZFCP_STATUS_FSFREQ_TMFUNCFAILED) {
zfcp_scsi_dbf_event_devreset("fail", tm_flags, unit, scpnt);
retval = -EIO;
else if (fsf_req->status & ZFCP_STATUS_FSFREQ_TMFUNCNOTSUPP)
} else if (fsf_req->status & ZFCP_STATUS_FSFREQ_TMFUNCNOTSUPP) {
zfcp_scsi_dbf_event_devreset("nsup", tm_flags, unit, scpnt);
retval = -ENOTSUPP;
} else
zfcp_scsi_dbf_event_devreset("okay", tm_flags, unit, scpnt);
zfcp_fsf_req_free(fsf_req);
out: