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[S390] dasd: message cleanup 

Moved some Messages into s390 debug feature and changed remaining
messages to use the dev_xxx and pr_xxx macros.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Stefan Haberland 2009-03-26 15:23:49 +01:00 committed by Martin Schwidefsky
parent f3eb5384cf
commit fc19f381b3
13 changed files with 743 additions and 637 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

168
drivers/s390/block/dasd.c
View File

@ -9,6 +9,9 @@
*
*/
#define KMSG_COMPONENT "dasd"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
#include <linux/kmod.h>
#include <linux/init.h>
#include <linux/interrupt.h>
@ -222,7 +225,7 @@ static int dasd_state_known_to_basic(struct dasd_device *device)
return rc;
}
/* register 'device' debug area, used for all DBF_DEV_XXX calls */
device->debug_area = debug_register(dev_name(&device->cdev->dev), 1, 1,
device->debug_area = debug_register(dev_name(&device->cdev->dev), 4, 1,
8 * sizeof(long));
debug_register_view(device->debug_area, &debug_sprintf_view);
debug_set_level(device->debug_area, DBF_WARNING);
@ -763,7 +766,7 @@ static inline int dasd_check_cqr(struct dasd_ccw_req *cqr)
return -EINVAL;
device = cqr->startdev;
if (strncmp((char *) &cqr->magic, device->discipline->ebcname, 4)) {
DEV_MESSAGE(KERN_WARNING, device,
DBF_DEV_EVENT(DBF_WARNING, device,
" dasd_ccw_req 0x%08x magic doesn't match"
" discipline 0x%08x",
cqr->magic,
@ -783,6 +786,7 @@ int dasd_term_IO(struct dasd_ccw_req *cqr)
{
struct dasd_device *device;
int retries, rc;
char errorstring[ERRORLENGTH];
/* Check the cqr */
rc = dasd_check_cqr(cqr);
@ -816,10 +820,10 @@ int dasd_term_IO(struct dasd_ccw_req *cqr)
"device busy, retry later");
break;
default:
DEV_MESSAGE(KERN_ERR, device,
"line %d unknown RC=%d, please "
"report to linux390@de.ibm.com",
__LINE__, rc);
/* internal error 10 - unknown rc*/
snprintf(errorstring, ERRORLENGTH, "10 %d", rc);
dev_err(&device->cdev->dev, "An error occurred in the "
"DASD device driver, reason=%s\n", errorstring);
BUG();
break;
}
@ -837,6 +841,7 @@ int dasd_start_IO(struct dasd_ccw_req *cqr)
{
struct dasd_device *device;
int rc;
char errorstring[ERRORLENGTH];
/* Check the cqr */
rc = dasd_check_cqr(cqr);
@ -844,9 +849,10 @@ int dasd_start_IO(struct dasd_ccw_req *cqr)
return rc;
device = (struct dasd_device *) cqr->startdev;
if (cqr->retries < 0) {
DEV_MESSAGE(KERN_DEBUG, device,
"start_IO: request %p (%02x/%i) - no retry left.",
cqr, cqr->status, cqr->retries);
/* internal error 14 - start_IO run out of retries */
sprintf(errorstring, "14 %p", cqr);
dev_err(&device->cdev->dev, "An error occurred in the DASD "
"device driver, reason=%s\n", errorstring);
cqr->status = DASD_CQR_ERROR;
return -EIO;
}
@ -868,11 +874,11 @@ int dasd_start_IO(struct dasd_ccw_req *cqr)
cqr);
break;
case -EBUSY:
DBF_DEV_EVENT(DBF_ERR, device, "%s",
DBF_DEV_EVENT(DBF_DEBUG, device, "%s",
"start_IO: device busy, retry later");
break;
case -ETIMEDOUT:
DBF_DEV_EVENT(DBF_ERR, device, "%s",
DBF_DEV_EVENT(DBF_DEBUG, device, "%s",
"start_IO: request timeout, retry later");
break;
case -EACCES:
@ -882,7 +888,7 @@ int dasd_start_IO(struct dasd_ccw_req *cqr)
* Do a retry with all available pathes.
*/
cqr->lpm = LPM_ANYPATH;
DBF_DEV_EVENT(DBF_ERR, device, "%s",
DBF_DEV_EVENT(DBF_DEBUG, device, "%s",
"start_IO: selected pathes gone,"
" retry on all pathes");
break;
@ -891,13 +897,15 @@ int dasd_start_IO(struct dasd_ccw_req *cqr)
"start_IO: -ENODEV device gone, retry");
break;
case -EIO:
DBF_DEV_EVENT(DBF_ERR, device, "%s",
DBF_DEV_EVENT(DBF_DEBUG, device, "%s",
"start_IO: -EIO device gone, retry");
break;
default:
DEV_MESSAGE(KERN_ERR, device,
"line %d unknown RC=%d, please report"
" to linux390@de.ibm.com", __LINE__, rc);
/* internal error 11 - unknown rc */
snprintf(errorstring, ERRORLENGTH, "11 %d", rc);
dev_err(&device->cdev->dev,
"An error occurred in the DASD device driver, "
"reason=%s\n", errorstring);
BUG();
break;
}
@ -954,7 +962,7 @@ static void dasd_handle_killed_request(struct ccw_device *cdev,
return;
cqr = (struct dasd_ccw_req *) intparm;
if (cqr->status != DASD_CQR_IN_IO) {
MESSAGE(KERN_DEBUG,
DBF_EVENT(DBF_DEBUG,
"invalid status in handle_killed_request: "
"bus_id %s, status %02x",
dev_name(&cdev->dev), cqr->status);
@ -965,8 +973,8 @@ static void dasd_handle_killed_request(struct ccw_device *cdev,
if (device == NULL ||
device != dasd_device_from_cdev_locked(cdev) ||
strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) {
MESSAGE(KERN_DEBUG, "invalid device in request: bus_id %s",
dev_name(&cdev->dev));
DBF_DEV_EVENT(DBF_DEBUG, device, "invalid device in request: "
"bus_id %s", dev_name(&cdev->dev));
return;
}
@ -1005,11 +1013,11 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
case -EIO:
break;
case -ETIMEDOUT:
printk(KERN_WARNING"%s(%s): request timed out\n",
DBF_EVENT(DBF_WARNING, "%s(%s): request timed out\n",
__func__, dev_name(&cdev->dev));
break;
default:
printk(KERN_WARNING"%s(%s): unknown error %ld\n",
DBF_EVENT(DBF_WARNING, "%s(%s): unknown error %ld\n",
__func__, dev_name(&cdev->dev), PTR_ERR(irb));
}
dasd_handle_killed_request(cdev, intparm);
@ -1018,10 +1026,6 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
now = get_clock();
DBF_EVENT(DBF_ERR, "Interrupt: bus_id %s CS/DS %04x ip %08x",
dev_name(&cdev->dev), ((irb->scsw.cmd.cstat << 8) |
irb->scsw.cmd.dstat), (unsigned int) intparm);
/* check for unsolicited interrupts */
cqr = (struct dasd_ccw_req *) intparm;
if (!cqr || ((scsw_cc(&irb->scsw) == 1) &&
@ -1042,8 +1046,8 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
device = (struct dasd_device *) cqr->startdev;
if (!device ||
strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) {
MESSAGE(KERN_DEBUG, "invalid device in request: bus_id %s",
dev_name(&cdev->dev));
DBF_DEV_EVENT(DBF_DEBUG, device, "invalid device in request: "
"bus_id %s", dev_name(&cdev->dev));
return;
}
@ -1059,13 +1063,11 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
/* check status - the request might have been killed by dyn detach */
if (cqr->status != DASD_CQR_IN_IO) {
MESSAGE(KERN_DEBUG,
"invalid status: bus_id %s, status %02x",
dev_name(&cdev->dev), cqr->status);
DBF_DEV_EVENT(DBF_DEBUG, device, "invalid status: bus_id %s, "
"status %02x", dev_name(&cdev->dev), cqr->status);
return;
}
DBF_DEV_EVENT(DBF_DEBUG, device, "Int: CS/DS 0x%04x for cqr %p",
((irb->scsw.cmd.cstat << 8) | irb->scsw.cmd.dstat), cqr);
next = NULL;
expires = 0;
if (scsw_dstat(&irb->scsw) == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) &&
@ -1080,17 +1082,22 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
}
} else { /* error */
memcpy(&cqr->irb, irb, sizeof(struct irb));
/* log sense for every failed I/O to s390 debugfeature */
dasd_log_sense_dbf(cqr, irb);
if (device->features & DASD_FEATURE_ERPLOG) {
dasd_log_sense(cqr, irb);
}
/*
* If we don't want complex ERP for this request, then just
* reset this and retry it in the fastpath
*/
if (!test_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags) &&
cqr->retries > 0) {
DEV_MESSAGE(KERN_DEBUG, device,
"default ERP in fastpath (%i retries left)",
if (cqr->lpm == LPM_ANYPATH)
DBF_DEV_EVENT(DBF_DEBUG, device,
"default ERP in fastpath "
"(%i retries left)",
cqr->retries);
cqr->lpm = LPM_ANYPATH;
cqr->status = DASD_CQR_QUEUED;
@ -1102,10 +1109,6 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
(!device->stopped)) {
if (device->discipline->start_IO(next) == 0)
expires = next->expires;
else
DEV_MESSAGE(KERN_DEBUG, device, "%s",
"Interrupt fastpath "
"failed!");
}
if (expires != 0)
dasd_device_set_timer(device, expires);
@ -1178,6 +1181,7 @@ static void __dasd_device_process_final_queue(struct dasd_device *device,
struct dasd_block *block;
void (*callback)(struct dasd_ccw_req *, void *data);
void *callback_data;
char errorstring[ERRORLENGTH];
list_for_each_safe(l, n, final_queue) {
cqr = list_entry(l, struct dasd_ccw_req, devlist);
@ -1198,10 +1202,11 @@ static void __dasd_device_process_final_queue(struct dasd_device *device,
cqr->status = DASD_CQR_TERMINATED;
break;
default:
DEV_MESSAGE(KERN_ERR, device,
"wrong cqr status in __dasd_process_final_queue "
"for cqr %p, status %x",
cqr, cqr->status);
/* internal error 12 - wrong cqr status*/
snprintf(errorstring, ERRORLENGTH, "12 %p %x02", cqr, cqr->status);
dev_err(&device->cdev->dev,
"An error occurred in the DASD device driver, "
"reason=%s\n", errorstring);
BUG();
}
if (cqr->callback != NULL)
@ -1226,18 +1231,17 @@ static void __dasd_device_check_expire(struct dasd_device *device)
(time_after_eq(jiffies, cqr->expires + cqr->starttime))) {
if (device->discipline->term_IO(cqr) != 0) {
/* Hmpf, try again in 5 sec */
DEV_MESSAGE(KERN_ERR, device,
"internal error - timeout (%is) expired "
"for cqr %p, termination failed, "
"retrying in 5s",
(cqr->expires/HZ), cqr);
dev_err(&device->cdev->dev,
"cqr %p timed out (%is) but cannot be "
"ended, retrying in 5 s\n",
cqr, (cqr->expires/HZ));
cqr->expires += 5*HZ;
dasd_device_set_timer(device, 5*HZ);
} else {
DEV_MESSAGE(KERN_ERR, device,
"internal error - timeout (%is) expired "
"for cqr %p (%i retries left)",
(cqr->expires/HZ), cqr, cqr->retries);
dev_err(&device->cdev->dev,
"cqr %p timed out (%is), %i retries "
"remaining\n", cqr, (cqr->expires/HZ),
cqr->retries);
}
}
}
@ -1299,10 +1303,9 @@ int dasd_flush_device_queue(struct dasd_device *device)
rc = device->discipline->term_IO(cqr);
if (rc) {
/* unable to terminate requeust */
DEV_MESSAGE(KERN_ERR, device,
"dasd flush ccw_queue is unable "
" to terminate request %p",
cqr);
dev_err(&device->cdev->dev,
"Flushing the DASD request queue "
"failed for request %p\n", cqr);
/* stop flush processing */
goto finished;
}
@ -1546,9 +1549,8 @@ int dasd_cancel_req(struct dasd_ccw_req *cqr)
/* request in IO - terminate IO and release again */
rc = device->discipline->term_IO(cqr);
if (rc) {
DEV_MESSAGE(KERN_ERR, device,
"dasd_cancel_req is unable "
" to terminate request %p, rc = %d",
dev_err(&device->cdev->dev,
"Cancelling request %p failed with rc=%d\n",
cqr, rc);
} else {
cqr->stopclk = get_clock();
@ -1626,7 +1628,7 @@ static inline void __dasd_block_process_erp(struct dasd_block *block,
if (cqr->status == DASD_CQR_DONE)
DBF_DEV_EVENT(DBF_NOTICE, device, "%s", "ERP successful");
else
DEV_MESSAGE(KERN_ERR, device, "%s", "ERP unsuccessful");
dev_err(&device->cdev->dev, "ERP failed for the DASD\n");
erp_fn = device->discipline->erp_postaction(cqr);
erp_fn(cqr);
}
@ -2055,8 +2057,9 @@ static int dasd_open(struct block_device *bdev, fmode_t mode)
}
if (dasd_probeonly) {
DEV_MESSAGE(KERN_INFO, base, "%s",
"No access to device due to probeonly mode");
dev_info(&base->cdev->dev,
"Accessing the DASD failed because it is in "
"probeonly mode\n");
rc = -EPERM;
goto out;
}
@ -2156,14 +2159,14 @@ int dasd_generic_probe(struct ccw_device *cdev,
ret = ccw_device_set_options(cdev, CCWDEV_DO_PATHGROUP);
if (ret) {
printk(KERN_WARNING
DBF_EVENT(DBF_WARNING,
"dasd_generic_probe: could not set ccw-device options "
"for %s\n", dev_name(&cdev->dev));
return ret;
}
ret = dasd_add_sysfs_files(cdev);
if (ret) {
printk(KERN_WARNING
DBF_EVENT(DBF_WARNING,
"dasd_generic_probe: could not add sysfs entries "
"for %s\n", dev_name(&cdev->dev));
return ret;
@ -2179,9 +2182,7 @@ int dasd_generic_probe(struct ccw_device *cdev,
(dasd_autodetect && dasd_busid_known(dev_name(&cdev->dev)) != 0))
ret = ccw_device_set_online(cdev);
if (ret)
printk(KERN_WARNING
"dasd_generic_probe: could not initially "
"online ccw-device %s; return code: %d\n",
pr_warning("%s: Setting the DASD online failed with rc=%d\n",
dev_name(&cdev->dev), ret);
return 0;
}
@ -2245,9 +2246,8 @@ int dasd_generic_set_online(struct ccw_device *cdev,
discipline = base_discipline;
if (device->features & DASD_FEATURE_USEDIAG) {
if (!dasd_diag_discipline_pointer) {
printk (KERN_WARNING
"dasd_generic couldn't online device %s "
"- discipline DIAG not available\n",
pr_warning("%s Setting the DASD online failed because "
"of missing DIAG discipline\n",
dev_name(&cdev->dev));
dasd_delete_device(device);
return -ENODEV;
@ -2269,9 +2269,8 @@ int dasd_generic_set_online(struct ccw_device *cdev,
/* check_device will allocate block device if necessary */
rc = discipline->check_device(device);
if (rc) {
printk (KERN_WARNING
"dasd_generic couldn't online device %s "
"with discipline %s rc=%i\n",
pr_warning("%s Setting the DASD online with discipline %s "
"failed with rc=%i\n",
dev_name(&cdev->dev), discipline->name, rc);
module_put(discipline->owner);
module_put(base_discipline->owner);
@ -2281,9 +2280,8 @@ int dasd_generic_set_online(struct ccw_device *cdev,
dasd_set_target_state(device, DASD_STATE_ONLINE);
if (device->state <= DASD_STATE_KNOWN) {
printk (KERN_WARNING
"dasd_generic discipline not found for %s\n",
dev_name(&cdev->dev));
pr_warning("%s Setting the DASD online failed because of a "
"missing discipline\n", dev_name(&cdev->dev));
rc = -ENODEV;
dasd_set_target_state(device, DASD_STATE_NEW);
if (device->block)
@ -2327,13 +2325,13 @@ int dasd_generic_set_offline(struct ccw_device *cdev)
open_count = atomic_read(&device->block->open_count);
if (open_count > max_count) {
if (open_count > 0)
printk(KERN_WARNING "Can't offline dasd "
"device with open count = %i.\n",
open_count);
pr_warning("%s: The DASD cannot be set offline "
"with open count %i\n",
dev_name(&cdev->dev), open_count);
else
printk(KERN_WARNING "%s",
"Can't offline dasd device due "
"to internal use\n");
pr_warning("%s: The DASD cannot be set offline "
"while it is in use\n",
dev_name(&cdev->dev));
clear_bit(DASD_FLAG_OFFLINE, &device->flags);
dasd_put_device(device);
return -EBUSY;
@ -2406,8 +2404,10 @@ static struct dasd_ccw_req *dasd_generic_build_rdc(struct dasd_device *device,
cqr = dasd_smalloc_request(magic, 1 /* RDC */, rdc_buffer_size, device);
if (IS_ERR(cqr)) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
"Could not allocate RDC request");
/* internal error 13 - Allocating the RDC request failed*/
dev_err(&device->cdev->dev,
"An error occurred in the DASD device driver, "
"reason=%s\n", "13");
return cqr;
}
@ -2519,7 +2519,7 @@ static int __init dasd_init(void)
return 0;
failed:
MESSAGE(KERN_INFO, "%s", "initialization not performed due to errors");
pr_info("The DASD device driver could not be initialized\n");
dasd_exit();
return rc;
}

728
drivers/s390/block/dasd_3990_erp.c
View File

File diff suppressed because it is too large Load Diff

10
drivers/s390/block/dasd_alias.c
View File

@ -5,6 +5,8 @@
* Author(s): Stefan Weinhuber <wein@de.ibm.com>
*/
#define KMSG_COMPONENT "dasd"
#include <linux/list.h>
#include <asm/ebcdic.h>
#include "dasd_int.h"
@ -503,7 +505,7 @@ static void lcu_update_work(struct work_struct *work)
*/
spin_lock_irqsave(&lcu->lock, flags);
if (rc || (lcu->flags & NEED_UAC_UPDATE)) {
DEV_MESSAGE(KERN_WARNING, device, "could not update"
DBF_DEV_EVENT(DBF_WARNING, device, "could not update"
" alias data in lcu (rc = %d), retry later", rc);
schedule_delayed_work(&lcu->ruac_data.dwork, 30*HZ);
} else {
@ -875,7 +877,7 @@ void dasd_alias_handle_summary_unit_check(struct dasd_device *device,
lcu = private->lcu;
if (!lcu) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"device not ready to handle summary"
" unit check (no lcu structure)");
return;
@ -888,7 +890,7 @@ void dasd_alias_handle_summary_unit_check(struct dasd_device *device,
* the next interrupt on a different device
*/
if (list_empty(&device->alias_list)) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"device is in offline processing,"
" don't do summary unit check handling");
spin_unlock(&lcu->lock);
@ -896,7 +898,7 @@ void dasd_alias_handle_summary_unit_check(struct dasd_device *device,
}
if (lcu->suc_data.device) {
/* already scheduled or running */
DEV_MESSAGE(KERN_WARNING, device, "%s",
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"previous instance of summary unit check worker"
" still pending");
spin_unlock(&lcu->lock);

38
drivers/s390/block/dasd_devmap.c
View File

@ -13,6 +13,8 @@
*
*/
#define KMSG_COMPONENT "dasd"
#include <linux/ctype.h>
#include <linux/init.h>
#include <linux/module.h>
@ -127,6 +129,7 @@ __setup ("dasd=", dasd_call_setup);
* Read a device busid/devno from a string.
*/
static int
dasd_busid(char **str, int *id0, int *id1, int *devno)
{
int val, old_style;
@ -134,8 +137,7 @@ dasd_busid(char **str, int *id0, int *id1, int *devno)
/* Interpret ipldev busid */
if (strncmp(DASD_IPLDEV, *str, strlen(DASD_IPLDEV)) == 0) {
if (ipl_info.type != IPL_TYPE_CCW) {
MESSAGE(KERN_ERR, "%s", "ipl device is not a ccw "
"device");
pr_err("The IPL device is not a CCW device\n");
return -EINVAL;
}
*id0 = 0;
@ -211,9 +213,8 @@ dasd_feature_list(char *str, char **endp)
else if (len == 8 && !strncmp(str, "failfast", 8))
features |= DASD_FEATURE_FAILFAST;
else {
MESSAGE(KERN_WARNING,
"unsupported feature: %*s, "
"ignoring setting", len, str);
pr_warning("%*s is not a supported device option\n",
len, str);
rc = -EINVAL;
}
str += len;
@ -222,8 +223,8 @@ dasd_feature_list(char *str, char **endp)
str++;
}
if (*str != ')') {
MESSAGE(KERN_WARNING, "%s",
"missing ')' in dasd parameter string\n");
pr_warning("A closing parenthesis ')' is missing in the "
"dasd= parameter\n");
rc = -EINVAL;
} else
str++;
@ -255,28 +256,27 @@ dasd_parse_keyword( char *parsestring ) {
}
if (strncmp("autodetect", parsestring, length) == 0) {
dasd_autodetect = 1;
MESSAGE (KERN_INFO, "%s",
"turning to autodetection mode");
pr_info("The autodetection mode has been activated\n");
return residual_str;
}
if (strncmp("probeonly", parsestring, length) == 0) {
dasd_probeonly = 1;
MESSAGE(KERN_INFO, "%s",
"turning to probeonly mode");
pr_info("The probeonly mode has been activated\n");
return residual_str;
}
if (strncmp("nopav", parsestring, length) == 0) {
if (MACHINE_IS_VM)
MESSAGE(KERN_INFO, "%s", "'nopav' not supported on VM");
pr_info("'nopav' is not supported on z/VM\n");
else {
dasd_nopav = 1;
MESSAGE(KERN_INFO, "%s", "disable PAV mode");
pr_info("PAV support has be deactivated\n");
}
return residual_str;
}
if (strncmp("nofcx", parsestring, length) == 0) {
dasd_nofcx = 1;
MESSAGE(KERN_INFO, "%s", "disable High Performance Ficon");
pr_info("High Performance FICON support has been "
"deactivated\n");
return residual_str;
}
if (strncmp("fixedbuffers", parsestring, length) == 0) {
@ -287,10 +287,10 @@ dasd_parse_keyword( char *parsestring ) {
PAGE_SIZE, SLAB_CACHE_DMA,
NULL);
if (!dasd_page_cache)
MESSAGE(KERN_WARNING, "%s", "Failed to create slab, "
DBF_EVENT(DBF_WARNING, "%s", "Failed to create slab, "
"fixed buffer mode disabled.");
else
MESSAGE (KERN_INFO, "%s",
DBF_EVENT(DBF_INFO, "%s",
"turning on fixed buffer mode");
return residual_str;
}
@ -328,7 +328,7 @@ dasd_parse_range( char *parsestring ) {
(from_id0 != to_id0 || from_id1 != to_id1 || from > to))
rc = -EINVAL;
if (rc) {
MESSAGE(KERN_ERR, "Invalid device range %s", parsestring);
pr_err("%s is not a valid device range\n", parsestring);
return ERR_PTR(rc);
}
features = dasd_feature_list(str, &str);
@ -347,8 +347,8 @@ dasd_parse_range( char *parsestring ) {
return str + 1;
if (*str == '\0')
return str;
MESSAGE(KERN_WARNING,
"junk at end of dasd parameter string: %s\n", str);
pr_warning("The dasd= parameter value %s has an invalid ending\n",
str);
return ERR_PTR(-EINVAL);
}

58
drivers/s390/block/dasd_diag.c
View File

@ -8,6 +8,8 @@
*
*/
#define KMSG_COMPONENT "dasd"
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/slab.h>
@ -144,8 +146,8 @@ dasd_diag_erp(struct dasd_device *device)
mdsk_term_io(device);
rc = mdsk_init_io(device, device->block->bp_block, 0, NULL);
if (rc)
DEV_MESSAGE(KERN_WARNING, device, "DIAG ERP unsuccessful, "
"rc=%d", rc);
dev_warn(&device->cdev->dev, "DIAG ERP failed with "
"rc=%d\n", rc);
}
/* Start a given request at the device. Return zero on success, non-zero
@ -160,7 +162,7 @@ dasd_start_diag(struct dasd_ccw_req * cqr)
device = cqr->startdev;
if (cqr->retries < 0) {
DEV_MESSAGE(KERN_WARNING, device, "DIAG start_IO: request %p "
DBF_DEV_EVENT(DBF_ERR, device, "DIAG start_IO: request %p "
"- no retry left)", cqr);
cqr->status = DASD_CQR_ERROR;
return -EIO;
@ -195,7 +197,7 @@ dasd_start_diag(struct dasd_ccw_req * cqr)
break;
default: /* Error condition */
cqr->status = DASD_CQR_QUEUED;
DEV_MESSAGE(KERN_WARNING, device, "dia250 returned rc=%d", rc);
DBF_DEV_EVENT(DBF_WARNING, device, "dia250 returned rc=%d", rc);
dasd_diag_erp(device);
rc = -EIO;
break;
@ -243,13 +245,14 @@ dasd_ext_handler(__u16 code)
return;
}
if (!ip) { /* no intparm: unsolicited interrupt */
MESSAGE(KERN_DEBUG, "%s", "caught unsolicited interrupt");
DBF_EVENT(DBF_NOTICE, "%s", "caught unsolicited "
"interrupt");
return;
}
cqr = (struct dasd_ccw_req *) ip;
device = (struct dasd_device *) cqr->startdev;
if (strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) {
DEV_MESSAGE(KERN_WARNING, device,
DBF_DEV_EVENT(DBF_WARNING, device,
" magic number of dasd_ccw_req 0x%08X doesn't"
" match discipline 0x%08X",
cqr->magic, *(int *) (&device->discipline->name));
@ -281,15 +284,11 @@ dasd_ext_handler(__u16 code)
rc = dasd_start_diag(next);
if (rc == 0)
expires = next->expires;
else if (rc != -EACCES)
DEV_MESSAGE(KERN_WARNING, device, "%s",
"Interrupt fastpath "
"failed!");
}
}
} else {
cqr->status = DASD_CQR_QUEUED;
DEV_MESSAGE(KERN_WARNING, device, "interrupt status for "
DBF_DEV_EVENT(DBF_DEBUG, device, "interrupt status for "
"request %p was %d (%d retries left)", cqr, status,
cqr->retries);
dasd_diag_erp(device);
@ -322,8 +321,9 @@ dasd_diag_check_device(struct dasd_device *device)
if (private == NULL) {
private = kzalloc(sizeof(struct dasd_diag_private),GFP_KERNEL);
if (private == NULL) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
"memory allocation failed for private data");
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Allocating memory for private DASD data "
"failed\n");
return -ENOMEM;
}
ccw_device_get_id(device->cdev, &private->dev_id);
@ -331,7 +331,7 @@ dasd_diag_check_device(struct dasd_device *device)
}
block = dasd_alloc_block();
if (IS_ERR(block)) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"could not allocate dasd block structure");
device->private = NULL;
kfree(private);
@ -347,7 +347,7 @@ dasd_diag_check_device(struct dasd_device *device)
rc = diag210((struct diag210 *) rdc_data);
if (rc) {
DEV_MESSAGE(KERN_WARNING, device, "failed to retrieve device "
DBF_DEV_EVENT(DBF_WARNING, device, "failed to retrieve device "
"information (rc=%d)", rc);
rc = -EOPNOTSUPP;
goto out;
@ -362,8 +362,8 @@ dasd_diag_check_device(struct dasd_device *device)
private->pt_block = 2;
break;
default:
DEV_MESSAGE(KERN_WARNING, device, "unsupported device class "
"(class=%d)", private->rdc_data.vdev_class);
dev_warn(&device->cdev->dev, "Device type %d is not supported "
"in DIAG mode\n", private->rdc_data.vdev_class);
rc = -EOPNOTSUPP;
goto out;
}
@ -380,7 +380,7 @@ dasd_diag_check_device(struct dasd_device *device)
/* figure out blocksize of device */
label = (struct vtoc_cms_label *) get_zeroed_page(GFP_KERNEL);
if (label == NULL) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"No memory to allocate initialization request");
rc = -ENOMEM;
goto out;
@ -404,8 +404,8 @@ dasd_diag_check_device(struct dasd_device *device)
private->iob.flaga = DASD_DIAG_FLAGA_DEFAULT;
rc = dia250(&private->iob, RW_BIO);
if (rc == 3) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
"DIAG call failed");
dev_warn(&device->cdev->dev,
"A 64-bit DIAG call failed\n");
rc = -EOPNOTSUPP;
goto out_label;
}
@ -414,8 +414,8 @@ dasd_diag_check_device(struct dasd_device *device)
break;
}
if (bsize > PAGE_SIZE) {
DEV_MESSAGE(KERN_WARNING, device, "device access failed "
"(rc=%d)", rc);
dev_warn(&device->cdev->dev, "Accessing the DASD failed because"
" of an incorrect format (rc=%d)\n", rc);
rc = -EIO;
goto out_label;
}
@ -433,12 +433,12 @@ dasd_diag_check_device(struct dasd_device *device)
block->s2b_shift++;
rc = mdsk_init_io(device, block->bp_block, 0, NULL);
if (rc) {
DEV_MESSAGE(KERN_WARNING, device, "DIAG initialization "
"failed (rc=%d)", rc);
dev_warn(&device->cdev->dev, "DIAG initialization "
"failed with rc=%d\n", rc);
rc = -EIO;
} else {
DEV_MESSAGE(KERN_INFO, device,
"(%ld B/blk): %ldkB",
dev_info(&device->cdev->dev,
"New DASD with %ld byte/block, total size %ld KB\n",
(unsigned long) block->bp_block,
(unsigned long) (block->blocks <<
block->s2b_shift) >> 1);
@ -595,7 +595,7 @@ static void
dasd_diag_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req,
struct irb *stat)
{
DEV_MESSAGE(KERN_ERR, device, "%s",
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"dump sense not available for DIAG data");
}
@ -621,9 +621,7 @@ static int __init
dasd_diag_init(void)
{
if (!MACHINE_IS_VM) {
MESSAGE_LOG(KERN_INFO,
"Machine is not VM: %s "
"discipline not initializing",
pr_info("Discipline %s cannot be used without z/VM\n",
dasd_diag_discipline.name);
return -ENODEV;
}

162
drivers/s390/block/dasd_eckd.c
View File

@ -11,6 +11,8 @@
*
*/
#define KMSG_COMPONENT "dasd"
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/slab.h>
@ -87,7 +89,7 @@ dasd_eckd_probe (struct ccw_device *cdev)
/* set ECKD specific ccw-device options */
ret = ccw_device_set_options(cdev, CCWDEV_ALLOW_FORCE);
if (ret) {
printk(KERN_WARNING
DBF_EVENT(DBF_WARNING,
"dasd_eckd_probe: could not set ccw-device options "
"for %s\n", dev_name(&cdev->dev));
return ret;
@ -248,8 +250,8 @@ define_extent(struct ccw1 *ccw, struct DE_eckd_data *data, unsigned int trk,
rc = check_XRC (ccw, data, device);
break;
default:
DBF_DEV_EVENT(DBF_ERR, device,
"PFX LRE unknown opcode 0x%x", cmd);
dev_err(&device->cdev->dev,
"0x%x is not a known command\n", cmd);
break;
}
@ -647,7 +649,8 @@ locate_record(struct ccw1 *ccw, struct LO_eckd_data *data, unsigned int trk,
data->operation.operation = 0x0b;
break;
default:
DEV_MESSAGE(KERN_ERR, device, "unknown opcode 0x%x", cmd);
DBF_DEV_EVENT(DBF_ERR, device, "unknown locate record "
"opcode 0x%x", cmd);
}
set_ch_t(&data->seek_addr,
trk / private->rdc_data.trk_per_cyl,
@ -742,7 +745,7 @@ static struct dasd_ccw_req *dasd_eckd_build_rcd_lpm(struct dasd_device *device,
cqr = dasd_smalloc_request("ECKD", 1 /* RCD */, ciw->count, device);
if (IS_ERR(cqr)) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Could not allocate RCD request");
return cqr;
}
@ -893,14 +896,16 @@ static int dasd_eckd_read_conf(struct dasd_device *device)
rc = dasd_eckd_read_conf_lpm(device, &conf_data,
&conf_len, lpm);
if (rc && rc != -EOPNOTSUPP) { /* -EOPNOTSUPP is ok */
MESSAGE(KERN_WARNING,
DBF_EVENT(DBF_WARNING,
"Read configuration data returned "
"error %d", rc);
"error %d for device: %s", rc,
dev_name(&device->cdev->dev));
return rc;
}
if (conf_data == NULL) {
MESSAGE(KERN_WARNING, "%s", "No configuration "
"data retrieved");
DBF_EVENT(DBF_WARNING, "No configuration "
"data retrieved for device: %s",
dev_name(&device->cdev->dev));
continue; /* no error */
}
/* save first valid configuration data */
@ -947,8 +952,9 @@ static int dasd_eckd_read_features(struct dasd_device *device)
sizeof(struct dasd_rssd_features)),
device);
if (IS_ERR(cqr)) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
"Could not allocate initialization request");
DBF_EVENT(DBF_WARNING, "Could not allocate initialization "
"request for device: %s",
dev_name(&device->cdev->dev));
return PTR_ERR(cqr);
}
cqr->startdev = device;
@ -1009,7 +1015,7 @@ static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device,
device);
if (IS_ERR(cqr)) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Could not allocate PSF-SSC request");
return cqr;
}
@ -1074,10 +1080,10 @@ static int dasd_eckd_validate_server(struct dasd_device *device)
/* may be requested feature is not available on server,
* therefore just report error and go ahead */
private = (struct dasd_eckd_private *) device->private;
DEV_MESSAGE(KERN_INFO, device,
"PSF-SSC on storage subsystem %s.%s.%04x returned rc=%d",
DBF_EVENT(DBF_WARNING, "PSF-SSC on storage subsystem %s.%s.%04x "
"returned rc=%d for device: %s",
private->uid.vendor, private->uid.serial,
private->uid.ssid, rc);
private->uid.ssid, rc, dev_name(&device->cdev->dev));
/* RE-Read Configuration Data */
return dasd_eckd_read_conf(device);
}
@ -1099,9 +1105,9 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
private = kzalloc(sizeof(struct dasd_eckd_private),
GFP_KERNEL | GFP_DMA);
if (private == NULL) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
"memory allocation failed for private "
"data");
dev_warn(&device->cdev->dev,
"Allocating memory for private DASD data "
"failed\n");
return -ENOMEM;
}
device->private = (void *) private;
@ -1126,8 +1132,9 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
if (private->uid.type == UA_BASE_DEVICE) {
block = dasd_alloc_block();
if (IS_ERR(block)) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
"could not allocate dasd block structure");
DBF_EVENT(DBF_WARNING, "could not allocate dasd "
"block structure for device: %s",
dev_name(&device->cdev->dev));
rc = PTR_ERR(block);
goto out_err1;
}
@ -1158,9 +1165,9 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
memset(rdc_data, 0, sizeof(rdc_data));
rc = dasd_generic_read_dev_chars(device, "ECKD", &rdc_data, 64);
if (rc) {
DEV_MESSAGE(KERN_WARNING, device,
"Read device characteristics returned "
"rc=%d", rc);
DBF_EVENT(DBF_WARNING,
"Read device characteristics failed, rc=%d for "
"device: %s", rc, dev_name(&device->cdev->dev));
goto out_err3;
}
/* find the vaild cylinder size */
@ -1170,8 +1177,8 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
else
private->real_cyl = private->rdc_data.no_cyl;
DEV_MESSAGE(KERN_INFO, device,
"%04X/%02X(CU:%04X/%02X) Cyl:%d Head:%d Sec:%d",
dev_info(&device->cdev->dev, "New DASD %04X/%02X (CU %04X/%02X) "
"with %d cylinders, %d heads, %d sectors\n",
private->rdc_data.dev_type,
private->rdc_data.dev_model,
private->rdc_data.cu_type,
@ -1319,8 +1326,8 @@ dasd_eckd_end_analysis(struct dasd_block *block)
status = private->init_cqr_status;
private->init_cqr_status = -1;
if (status != DASD_CQR_DONE) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
"volume analysis returned unformatted disk");
dev_warn(&device->cdev->dev,
"The DASD is not formatted\n");
return -EMEDIUMTYPE;
}
@ -1348,8 +1355,8 @@ dasd_eckd_end_analysis(struct dasd_block *block)
count_area = &private->count_area[0];
} else {
if (private->count_area[3].record == 1)
DEV_MESSAGE(KERN_WARNING, device, "%s",
"Trk 0: no records after VTOC!");
dev_warn(&device->cdev->dev,
"Track 0 has no records following the VTOC\n");
}
if (count_area != NULL && count_area->kl == 0) {
/* we found notthing violating our disk layout */
@ -1357,8 +1364,8 @@ dasd_eckd_end_analysis(struct dasd_block *block)
block->bp_block = count_area->dl;
}
if (block->bp_block == 0) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
"Volume has incompatible disk layout");
dev_warn(&device->cdev->dev,
"The disk layout of the DASD is not supported\n");
return -EMEDIUMTYPE;
}
block->s2b_shift = 0; /* bits to shift 512 to get a block */
@ -1370,9 +1377,9 @@ dasd_eckd_end_analysis(struct dasd_block *block)
private->rdc_data.trk_per_cyl *
blk_per_trk);
DEV_MESSAGE(KERN_INFO, device,
"(%dkB blks): %dkB at %dkB/trk %s",
(block->bp_block >> 10),
dev_info(&device->cdev->dev,
"DASD with %d KB/block, %d KB total size, %d KB/track, "
"%s\n", (block->bp_block >> 10),
((private->real_cyl *
private->rdc_data.trk_per_cyl *
blk_per_trk * (block->bp_block >> 9)) >> 1),
@ -1444,18 +1451,18 @@ dasd_eckd_format_device(struct dasd_device * device,
/* Sanity checks. */
if (fdata->start_unit >=
(private->real_cyl * private->rdc_data.trk_per_cyl)) {
DEV_MESSAGE(KERN_INFO, device, "Track no %u too big!",
fdata->start_unit);
dev_warn(&device->cdev->dev, "Start track number %d used in "
"formatting is too big\n", fdata->start_unit);
return ERR_PTR(-EINVAL);
}
if (fdata->start_unit > fdata->stop_unit) {
DEV_MESSAGE(KERN_INFO, device, "Track %u reached! ending.",
fdata->start_unit);
dev_warn(&device->cdev->dev, "Start track %d used in "
"formatting exceeds end track\n", fdata->start_unit);
return ERR_PTR(-EINVAL);
}
if (dasd_check_blocksize(fdata->blksize) != 0) {
DEV_MESSAGE(KERN_WARNING, device,
"Invalid blocksize %u...terminating!",
dev_warn(&device->cdev->dev,
"The DASD cannot be formatted with block size %d\n",
fdata->blksize);
return ERR_PTR(-EINVAL);
}
@ -1500,8 +1507,8 @@ dasd_eckd_format_device(struct dasd_device * device,
sizeof(struct eckd_count);
break;
default:
DEV_MESSAGE(KERN_WARNING, device, "Invalid flags 0x%x.",
fdata->intensity);
dev_warn(&device->cdev->dev, "An I/O control call used "
"incorrect flags 0x%x\n", fdata->intensity);
return ERR_PTR(-EINVAL);
}
/* Allocate the format ccw request. */
@ -1696,13 +1703,14 @@ static void dasd_eckd_handle_unsolicited_interrupt(struct dasd_device *device,
if (!sense) {
/* just report other unsolicited interrupts */
DEV_MESSAGE(KERN_ERR, device, "%s",
DBF_DEV_EVENT(DBF_ERR, device, "%s",
"unsolicited interrupt received");
} else {
DEV_MESSAGE(KERN_ERR, device, "%s",
DBF_DEV_EVENT(DBF_ERR, device, "%s",
"unsolicited interrupt received "
"(sense available)");
device->discipline->dump_sense(device, NULL, irb);
device->discipline->dump_sense_dbf(device, NULL, irb,
"unsolicited");
}
dasd_schedule_device_bh(device);
@ -2553,7 +2561,7 @@ dasd_eckd_release(struct dasd_device *device)
cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
1, 32, device);
if (IS_ERR(cqr)) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Could not allocate initialization request");
return PTR_ERR(cqr);
}
@ -2596,7 +2604,7 @@ dasd_eckd_reserve(struct dasd_device *device)
cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
1, 32, device);
if (IS_ERR(cqr)) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Could not allocate initialization request");
return PTR_ERR(cqr);
}
@ -2638,7 +2646,7 @@ dasd_eckd_steal_lock(struct dasd_device *device)
cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
1, 32, device);
if (IS_ERR(cqr)) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Could not allocate initialization request");
return PTR_ERR(cqr);
}
@ -2680,7 +2688,7 @@ dasd_eckd_performance(struct dasd_device *device, void __user *argp)
sizeof(struct dasd_rssd_perf_stats_t)),
device);
if (IS_ERR(cqr)) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Could not allocate initialization request");
return PTR_ERR(cqr);
}
@ -2770,8 +2778,8 @@ dasd_eckd_set_attrib(struct dasd_device *device, void __user *argp)
return -EFAULT;
private->attrib = attrib;
DEV_MESSAGE(KERN_INFO, device,
"cache operation mode set to %x (%i cylinder prestage)",
dev_info(&device->cdev->dev,
"The DASD cache mode was set to %x (%i cylinder prestage)\n",
private->attrib.operation, private->attrib.nr_cyl);
return 0;
}
@ -2823,7 +2831,7 @@ static int dasd_symm_io(struct dasd_device *device, void __user *argp)
/* setup CCWs for PSF + RSSD */
cqr = dasd_smalloc_request("ECKD", 2 , 0, device);
if (IS_ERR(cqr)) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Could not allocate initialization request");
rc = PTR_ERR(cqr);
goto out_free;
@ -2932,6 +2940,49 @@ dasd_eckd_dump_ccw_range(struct ccw1 *from, struct ccw1 *to, char *page)
return len;
}
static void
dasd_eckd_dump_sense_dbf(struct dasd_device *device, struct dasd_ccw_req *req,
struct irb *irb, char *reason)
{
u64 *sense;
int sl;
struct tsb *tsb;
sense = NULL;
tsb = NULL;
if (req && scsw_is_tm(&req->irb.scsw)) {
if (irb->scsw.tm.tcw)
tsb = tcw_get_tsb(
(struct tcw *)(unsigned long)irb->scsw.tm.tcw);
if (tsb && (irb->scsw.tm.fcxs == 0x01)) {
switch (tsb->flags & 0x07) {
case 1: /* tsa_iostat */
sense = (u64 *)tsb->tsa.iostat.sense;
break;
case 2: /* ts_ddpc */
sense = (u64 *)tsb->tsa.ddpc.sense;
break;
case 3: /* tsa_intrg */
break;
}
}
} else {
if (irb->esw.esw0.erw.cons)
sense = (u64 *)irb->ecw;
}
if (sense) {
for (sl = 0; sl < 4; sl++) {
DBF_DEV_EVENT(DBF_EMERG, device,
"%s: %016llx %016llx %016llx %016llx",
reason, sense[0], sense[1], sense[2],
sense[3]);
}
} else {
DBF_DEV_EVENT(DBF_EMERG, device, "%s",
"SORRY - NO VALID SENSE AVAILABLE\n");
}
}
/*
* Print sense data and related channel program.
* Parts are printed because printk buffer is only 1024 bytes.
@ -2945,8 +2996,8 @@ static void dasd_eckd_dump_sense_ccw(struct dasd_device *device,
page = (char *) get_zeroed_page(GFP_ATOMIC);
if (page == NULL) {
DEV_MESSAGE(KERN_ERR, device, " %s",
"No memory to dump sense data");
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"No memory to dump sense data\n");
return;
}
/* dump the sense data */
@ -3047,7 +3098,7 @@ static void dasd_eckd_dump_sense_tcw(struct dasd_device *device,
page = (char *) get_zeroed_page(GFP_ATOMIC);
if (page == NULL) {
DEV_MESSAGE(KERN_ERR, device, " %s",
DBF_DEV_EVENT(DBF_WARNING, device, " %s",
"No memory to dump sense data");
return;
}
@ -3206,6 +3257,7 @@ static struct dasd_discipline dasd_eckd_discipline = {
.build_cp = dasd_eckd_build_alias_cp,
.free_cp = dasd_eckd_free_alias_cp,
.dump_sense = dasd_eckd_dump_sense,
.dump_sense_dbf = dasd_eckd_dump_sense_dbf,
.fill_info = dasd_eckd_fill_info,
.ioctl = dasd_eckd_ioctl,
};

6
drivers/s390/block/dasd_eer.c
View File

@ -6,6 +6,8 @@
* Author(s): Stefan Weinhuber <wein@de.ibm.com>
*/
#define KMSG_COMPONENT "dasd"
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/kernel.h>
@ -539,7 +541,7 @@ static int dasd_eer_open(struct inode *inp, struct file *filp)
if (eerb->buffer_page_count < 1 ||
eerb->buffer_page_count > INT_MAX / PAGE_SIZE) {
kfree(eerb);
MESSAGE(KERN_WARNING, "can't open device since module "
DBF_EVENT(DBF_WARNING, "can't open device since module "
"parameter eer_pages is smaller than 1 or"
" bigger than %d", (int)(INT_MAX / PAGE_SIZE));
unlock_kernel();
@ -692,7 +694,7 @@ int __init dasd_eer_init(void)
if (rc) {
kfree(dasd_eer_dev);
dasd_eer_dev = NULL;
MESSAGE(KERN_ERR, "%s", "dasd_eer_init could not "
DBF_EVENT(DBF_ERR, "%s", "dasd_eer_init could not "
"register misc device");
return rc;
}

21
drivers/s390/block/dasd_erp.c
View File

@ -9,6 +9,8 @@
*
*/
#define KMSG_COMPONENT "dasd"
#include <linux/ctype.h>
#include <linux/init.h>
@ -91,14 +93,14 @@ dasd_default_erp_action(struct dasd_ccw_req *cqr)
/* just retry - there is nothing to save ... I got no sense data.... */
if (cqr->retries > 0) {
DEV_MESSAGE (KERN_DEBUG, device,
DBF_DEV_EVENT(DBF_DEBUG, device,
"default ERP called (%i retries left)",
cqr->retries);
cqr->lpm = LPM_ANYPATH;
cqr->status = DASD_CQR_FILLED;
} else {
DEV_MESSAGE (KERN_WARNING, device, "%s",
"default ERP called (NO retry left)");
dev_err(&device->cdev->dev,
"default ERP has run out of retries and failed\n");
cqr->status = DASD_CQR_FAILED;
cqr->stopclk = get_clock();
}
@ -162,8 +164,21 @@ dasd_log_sense(struct dasd_ccw_req *cqr, struct irb *irb)
device->discipline->dump_sense(device, cqr, irb);
}
void
dasd_log_sense_dbf(struct dasd_ccw_req *cqr, struct irb *irb)
{
struct dasd_device *device;
device = cqr->startdev;
/* dump sense data to s390 debugfeature*/
if (device->discipline && device->discipline->dump_sense_dbf)
device->discipline->dump_sense_dbf(device, cqr, irb, "log");
}
EXPORT_SYMBOL(dasd_log_sense_dbf);
EXPORT_SYMBOL(dasd_default_erp_action);
EXPORT_SYMBOL(dasd_default_erp_postaction);
EXPORT_SYMBOL(dasd_alloc_erp_request);
EXPORT_SYMBOL(dasd_free_erp_request);
EXPORT_SYMBOL(dasd_log_sense);

63
drivers/s390/block/dasd_fba.c
View File

@ -6,6 +6,8 @@
*
*/
#define KMSG_COMPONENT "dasd"
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <asm/debug.h>
@ -128,17 +130,18 @@ dasd_fba_check_characteristics(struct dasd_device *device)
private = kzalloc(sizeof(struct dasd_fba_private),
GFP_KERNEL | GFP_DMA);
if (private == NULL) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
"memory allocation failed for private "
"data");
dev_warn(&device->cdev->dev,
"Allocating memory for private DASD "
"data failed\n");
return -ENOMEM;
}
device->private = (void *) private;
}
block = dasd_alloc_block();
if (IS_ERR(block)) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
"could not allocate dasd block structure");
DBF_EVENT(DBF_WARNING, "could not allocate dasd block "
"structure for device: %s",
dev_name(&device->cdev->dev));
device->private = NULL;
kfree(private);
return PTR_ERR(block);
@ -150,9 +153,9 @@ dasd_fba_check_characteristics(struct dasd_device *device)
rdc_data = (void *) &(private->rdc_data);
rc = dasd_generic_read_dev_chars(device, "FBA ", &rdc_data, 32);
if (rc) {
DEV_MESSAGE(KERN_WARNING, device,
"Read device characteristics returned error %d",
rc);
DBF_EVENT(DBF_WARNING, "Read device characteristics returned "
"error %d for device: %s",
rc, dev_name(&device->cdev->dev));
device->block = NULL;
dasd_free_block(block);
device->private = NULL;
@ -160,8 +163,9 @@ dasd_fba_check_characteristics(struct dasd_device *device)
return rc;
}
DEV_MESSAGE(KERN_INFO, device,
"%04X/%02X(CU:%04X/%02X) %dMB at(%d B/blk)",
dev_info(&device->cdev->dev,
"New FBA DASD %04X/%02X (CU %04X/%02X) with %d MB "
"and %d B/blk\n",
cdev->id.dev_type,
cdev->id.dev_model,
cdev->id.cu_type,
@ -180,7 +184,7 @@ static int dasd_fba_do_analysis(struct dasd_block *block)
private = (struct dasd_fba_private *) block->base->private;
rc = dasd_check_blocksize(private->rdc_data.blk_size);
if (rc) {
DEV_MESSAGE(KERN_INFO, block->base, "unknown blocksize %d",
DBF_DEV_EVENT(DBF_WARNING, block->base, "unknown blocksize %d",
private->rdc_data.blk_size);
return rc;
}
@ -215,7 +219,7 @@ dasd_fba_erp_postaction(struct dasd_ccw_req * cqr)
if (cqr->function == dasd_default_erp_action)
return dasd_default_erp_postaction;
DEV_MESSAGE(KERN_WARNING, cqr->startdev, "unknown ERP action %p",
DBF_DEV_EVENT(DBF_WARNING, cqr->startdev, "unknown ERP action %p",
cqr->function);
return NULL;
}
@ -233,9 +237,9 @@ static void dasd_fba_handle_unsolicited_interrupt(struct dasd_device *device,
}
/* check for unsolicited interrupts */
DEV_MESSAGE(KERN_DEBUG, device, "%s",
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"unsolicited interrupt received");
device->discipline->dump_sense(device, NULL, irb);
device->discipline->dump_sense_dbf(device, NULL, irb, "unsolicited");
dasd_schedule_device_bh(device);
return;
};
@ -436,6 +440,25 @@ dasd_fba_fill_info(struct dasd_device * device,
return 0;
}
static void
dasd_fba_dump_sense_dbf(struct dasd_device *device, struct dasd_ccw_req *req,
struct irb *irb, char *reason)
{
int sl;
if (irb->esw.esw0.erw.cons) {
for (sl = 0; sl < 4; sl++) {
DBF_DEV_EVENT(DBF_EMERG, device,
"%s: %08x %08x %08x %08x",
reason, irb->ecw[8 * 0], irb->ecw[8 * 1],
irb->ecw[8 * 2], irb->ecw[8 * 3]);
}
} else {
DBF_DEV_EVENT(DBF_EMERG, device, "%s",
"SORRY - NO VALID SENSE AVAILABLE\n");
}
}
static void
dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req,
struct irb *irb)
@ -446,7 +469,7 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req,
page = (char *) get_zeroed_page(GFP_ATOMIC);
if (page == NULL) {
DEV_MESSAGE(KERN_ERR, device, " %s",
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"No memory to dump sense data");
return;
}
@ -476,8 +499,7 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req,
len += sprintf(page + len, KERN_ERR PRINTK_HEADER
" SORRY - NO VALID SENSE AVAILABLE\n");
}
MESSAGE_LOG(KERN_ERR, "%s",
page + sizeof(KERN_ERR PRINTK_HEADER));
printk(KERN_ERR "%s", page);
/* dump the Channel Program */
/* print first CCWs (maximum 8) */
@ -498,8 +520,7 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req,
len += sprintf(page + len, "\n");
act++;
}
MESSAGE_LOG(KERN_ERR, "%s",
page + sizeof(KERN_ERR PRINTK_HEADER));
printk(KERN_ERR "%s", page);
/* print failing CCW area */
@ -540,8 +561,7 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req,
act++;
}
if (len > 0)
MESSAGE_LOG(KERN_ERR, "%s",
page + sizeof(KERN_ERR PRINTK_HEADER));
printk(KERN_ERR "%s", page);
free_page((unsigned long) page);
}
@ -576,6 +596,7 @@ static struct dasd_discipline dasd_fba_discipline = {
.build_cp = dasd_fba_build_cp,
.free_cp = dasd_fba_free_cp,
.dump_sense = dasd_fba_dump_sense,
.dump_sense_dbf = dasd_fba_dump_sense_dbf,
.fill_info = dasd_fba_fill_info,
};

7
drivers/s390/block/dasd_genhd.c
View File

@ -11,6 +11,8 @@
*
*/
#define KMSG_COMPONENT "dasd"
#include <linux/interrupt.h>
#include <linux/fs.h>
#include <linux/blkpg.h>
@ -163,9 +165,8 @@ int dasd_gendisk_init(void)
/* Register to static dasd major 94 */
rc = register_blkdev(DASD_MAJOR, "dasd");
if (rc != 0) {
MESSAGE(KERN_WARNING,
"Couldn't register successfully to "
"major no %d", DASD_MAJOR);
pr_warning("Registering the device driver with major number "
"%d failed\n", DASD_MAJOR);
return rc;
}
return 0;

6
drivers/s390/block/dasd_int.h
View File

@ -112,6 +112,9 @@ do { \
d_data); \
} while(0)
/* limit size for an errorstring */
#define ERRORLENGTH 30
/* definition of dbf debug levels */
#define DBF_EMERG 0 /* system is unusable */
#define DBF_ALERT 1 /* action must be taken immediately */
@ -281,6 +284,8 @@ struct dasd_discipline {
dasd_erp_fn_t(*erp_postaction) (struct dasd_ccw_req *);
void (*dump_sense) (struct dasd_device *, struct dasd_ccw_req *,
struct irb *);
void (*dump_sense_dbf) (struct dasd_device *, struct dasd_ccw_req *,
struct irb *, char *);
void (*handle_unsolicited_interrupt) (struct dasd_device *,
struct irb *);
@ -626,6 +631,7 @@ struct dasd_ccw_req *dasd_alloc_erp_request(char *, int, int,
struct dasd_device *);
void dasd_free_erp_request(struct dasd_ccw_req *, struct dasd_device *);
void dasd_log_sense(struct dasd_ccw_req *, struct irb *);
void dasd_log_sense_dbf(struct dasd_ccw_req *cqr, struct irb *irb);
/* externals in dasd_3990_erp.c */
struct dasd_ccw_req *dasd_3990_erp_action(struct dasd_ccw_req *);

27
drivers/s390/block/dasd_ioctl.c
View File

@ -9,6 +9,9 @@
*
* i/o controls for the dasd driver.
*/
#define KMSG_COMPONENT "dasd"
#include <linux/interrupt.h>
#include <linux/major.h>
#include <linux/fs.h>
@ -94,7 +97,8 @@ static int dasd_ioctl_quiesce(struct dasd_block *block)
if (!capable (CAP_SYS_ADMIN))
return -EACCES;
DEV_MESSAGE(KERN_DEBUG, base, "%s", "Quiesce IO on device");
dev_info(&base->cdev->dev, "The DASD has been put in the quiesce "
"state\n");
spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags);
base->stopped |= DASD_STOPPED_QUIESCE;
spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags);
@ -103,7 +107,7 @@ static int dasd_ioctl_quiesce(struct dasd_block *block)
/*
* Quiesce device.
* Resume device.
*/
static int dasd_ioctl_resume(struct dasd_block *block)
{
@ -114,7 +118,8 @@ static int dasd_ioctl_resume(struct dasd_block *block)
if (!capable (CAP_SYS_ADMIN))
return -EACCES;
DEV_MESSAGE(KERN_DEBUG, base, "%s", "resume IO on device");
dev_info(&base->cdev->dev, "I/O operations have been resumed "
"on the DASD\n");
spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags);
base->stopped &= ~DASD_STOPPED_QUIESCE;
spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags);
@ -140,8 +145,8 @@ static int dasd_format(struct dasd_block *block, struct format_data_t *fdata)
return -EPERM;
if (base->state != DASD_STATE_BASIC) {
DEV_MESSAGE(KERN_WARNING, base, "%s",
"dasd_format: device is not disabled! ");
dev_warn(&base->cdev->dev,
"The DASD cannot be formatted while it is enabled\n");
return -EBUSY;
}
@ -169,10 +174,9 @@ static int dasd_format(struct dasd_block *block, struct format_data_t *fdata)
dasd_sfree_request(cqr, cqr->memdev);
if (rc) {
if (rc != -ERESTARTSYS)
DEV_MESSAGE(KERN_ERR, base,
" Formatting of unit %u failed "
"with rc = %d",
fdata->start_unit, rc);
dev_err(&base->cdev->dev,
"Formatting unit %d failed with "
"rc=%d\n", fdata->start_unit, rc);
return rc;
}
fdata->start_unit++;
@ -199,8 +203,9 @@ dasd_ioctl_format(struct block_device *bdev, void __user *argp)
if (copy_from_user(&fdata, argp, sizeof(struct format_data_t)))
return -EFAULT;
if (bdev != bdev->bd_contains) {
DEV_MESSAGE(KERN_WARNING, block->base, "%s",
"Cannot low-level format a partition");
dev_warn(&block->base->cdev->dev,
"The specified DASD is a partition and cannot be "
"formatted\n");
return -EINVAL;
}
return dasd_format(block, &fdata);

20
drivers/s390/block/dasd_proc.c
View File

@ -11,6 +11,8 @@
*
*/
#define KMSG_COMPONENT "dasd"
#include <linux/ctype.h>
#include <linux/seq_file.h>
#include <linux/vmalloc.h>
@ -267,7 +269,7 @@ dasd_statistics_write(struct file *file, const char __user *user_buf,
buffer = dasd_get_user_string(user_buf, user_len);
if (IS_ERR(buffer))
return PTR_ERR(buffer);
MESSAGE_LOG(KERN_INFO, "/proc/dasd/statictics: '%s'", buffer);
DBF_EVENT(DBF_DEBUG, "/proc/dasd/statictics: '%s'\n", buffer);
/* check for valid verbs */
for (str = buffer; isspace(*str); str++);
@ -277,33 +279,33 @@ dasd_statistics_write(struct file *file, const char __user *user_buf,
if (strcmp(str, "on") == 0) {
/* switch on statistics profiling */
dasd_profile_level = DASD_PROFILE_ON;
MESSAGE(KERN_INFO, "%s", "Statistics switched on");
pr_info("The statistics feature has been switched "
"on\n");
} else if (strcmp(str, "off") == 0) {
/* switch off and reset statistics profiling */
memset(&dasd_global_profile,
0, sizeof (struct dasd_profile_info_t));
dasd_profile_level = DASD_PROFILE_OFF;
MESSAGE(KERN_INFO, "%s", "Statistics switched off");
pr_info("The statistics feature has been switched "
"off\n");
} else
goto out_error;
} else if (strncmp(str, "reset", 5) == 0) {
/* reset the statistics */
memset(&dasd_global_profile, 0,
sizeof (struct dasd_profile_info_t));
MESSAGE(KERN_INFO, "%s", "Statistics reset");
pr_info("The statistics have been reset\n");
} else
goto out_error;
kfree(buffer);
return user_len;
out_error:
MESSAGE(KERN_WARNING, "%s",
"/proc/dasd/statistics: only 'set on', 'set off' "
"and 'reset' are supported verbs");
pr_warning("%s is not a supported value for /proc/dasd/statistics\n",
str);
kfree(buffer);
return -EINVAL;
#else
MESSAGE(KERN_WARNING, "%s",
"/proc/dasd/statistics: is not activated in this kernel");
pr_warning("/proc/dasd/statistics: is not activated in this kernel\n");
return user_len;
#endif /* CONFIG_DASD_PROFILE */
}