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-rw-r--r--drivers/s390/Makefile3
-rw-r--r--drivers/s390/block/dasd.c249
-rw-r--r--drivers/s390/block/dasd_3990_erp.c871
-rw-r--r--drivers/s390/block/dasd_alias.c35
-rw-r--r--drivers/s390/block/dasd_devmap.c43
-rw-r--r--drivers/s390/block/dasd_diag.c66
-rw-r--r--drivers/s390/block/dasd_eckd.c1297
-rw-r--r--drivers/s390/block/dasd_eckd.h49
-rw-r--r--drivers/s390/block/dasd_eer.c27
-rw-r--r--drivers/s390/block/dasd_erp.c21
-rw-r--r--drivers/s390/block/dasd_fba.c77
-rw-r--r--drivers/s390/block/dasd_genhd.c7
-rw-r--r--drivers/s390/block/dasd_int.h13
-rw-r--r--drivers/s390/block/dasd_ioctl.c46
-rw-r--r--drivers/s390/block/dasd_proc.c22
-rw-r--r--drivers/s390/char/tape.h2
-rw-r--r--drivers/s390/char/tape_34xx.c161
-rw-r--r--drivers/s390/char/tape_3590.c367
-rw-r--r--drivers/s390/char/tape_block.c18
-rw-r--r--drivers/s390/char/tape_char.c7
-rw-r--r--drivers/s390/char/tape_core.c68
-rw-r--r--drivers/s390/char/tape_proc.c3
-rw-r--r--drivers/s390/char/tape_std.c25
-rw-r--r--drivers/s390/char/zcore.c90
-rw-r--r--drivers/s390/cio/Makefile2
-rw-r--r--drivers/s390/cio/airq.c6
-rw-r--r--drivers/s390/cio/blacklist.c3
-rw-r--r--drivers/s390/cio/ccwgroup.c73
-rw-r--r--drivers/s390/cio/chp.c6
-rw-r--r--drivers/s390/cio/chsc.c7
-rw-r--r--drivers/s390/cio/cio.c21
-rw-r--r--drivers/s390/cio/crw.c159
-rw-r--r--drivers/s390/cio/css.c58
-rw-r--r--drivers/s390/cio/device.c44
-rw-r--r--drivers/s390/cio/device.h2
-rw-r--r--drivers/s390/cio/device_fsm.c8
-rw-r--r--drivers/s390/cio/device_ops.c2
-rw-r--r--drivers/s390/cio/qdio.h8
-rw-r--r--drivers/s390/cio/qdio_debug.c3
-rw-r--r--drivers/s390/cio/qdio_main.c222
-rw-r--r--drivers/s390/cio/qdio_setup.c1
-rw-r--r--drivers/s390/cio/qdio_thinint.c23
-rw-r--r--drivers/s390/crypto/zcrypt_api.c6
-rw-r--r--drivers/s390/crypto/zcrypt_pcixcc.c3
-rw-r--r--drivers/s390/ebcdic.c246
-rw-r--r--drivers/s390/net/qeth_core_main.c55
-rw-r--r--drivers/s390/s390mach.c538
-rw-r--r--drivers/s390/s390mach.h122
-rw-r--r--drivers/s390/sysinfo.c469
49 files changed, 2770 insertions, 2884 deletions
diff --git a/drivers/s390/Makefile b/drivers/s390/Makefile
index d0eae59bc36..95bccfd3f16 100644
--- a/drivers/s390/Makefile
+++ b/drivers/s390/Makefile
@@ -2,9 +2,6 @@
# Makefile for the S/390 specific device drivers
#
-CFLAGS_sysinfo.o += -Iinclude/math-emu -Iarch/s390/math-emu -w
-
-obj-y += s390mach.o sysinfo.o
obj-y += cio/ block/ char/ crypto/ net/ scsi/ kvm/
drivers-y += drivers/s390/built-in.o
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 08c23a92101..2fd64e5a9ab 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -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>
@@ -22,6 +25,7 @@
#include <asm/ebcdic.h>
#include <asm/idals.h>
#include <asm/todclk.h>
+#include <asm/itcw.h>
/* This is ugly... */
#define PRINTK_HEADER "dasd:"
@@ -221,7 +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);
@@ -762,7 +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,
@@ -782,6 +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);
@@ -815,10 +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;
}
@@ -836,6 +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);
@@ -843,17 +849,23 @@ 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;
}
cqr->startclk = get_clock();
cqr->starttime = jiffies;
cqr->retries--;
- rc = ccw_device_start(device->cdev, cqr->cpaddr, (long) cqr,
- cqr->lpm, 0);
+ if (cqr->cpmode == 1) {
+ rc = ccw_device_tm_start(device->cdev, cqr->cpaddr,
+ (long) cqr, cqr->lpm);
+ } else {
+ rc = ccw_device_start(device->cdev, cqr->cpaddr,
+ (long) cqr, cqr->lpm, 0);
+ }
switch (rc) {
case 0:
cqr->status = DASD_CQR_IN_IO;
@@ -862,11 +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:
@@ -876,19 +888,24 @@ 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;
case -ENODEV:
+ DBF_DEV_EVENT(DBF_DEBUG, device, "%s",
+ "start_IO: -ENODEV device gone, retry");
+ break;
case -EIO:
- DBF_DEV_EVENT(DBF_ERR, device, "%s",
- "start_IO: device gone, retry");
+ 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;
}
@@ -945,7 +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);
@@ -956,8 +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;
}
@@ -996,11 +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);
@@ -1009,15 +1026,11 @@ 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 || ((irb->scsw.cmd.cc == 1) &&
- (irb->scsw.cmd.fctl & SCSW_FCTL_START_FUNC) &&
- (irb->scsw.cmd.stctl & SCSW_STCTL_STATUS_PEND))) {
+ if (!cqr || ((scsw_cc(&irb->scsw) == 1) &&
+ (scsw_fctl(&irb->scsw) & SCSW_FCTL_START_FUNC) &&
+ (scsw_stctl(&irb->scsw) & SCSW_STCTL_STATUS_PEND))) {
if (cqr && cqr->status == DASD_CQR_IN_IO)
cqr->status = DASD_CQR_QUEUED;
device = dasd_device_from_cdev_locked(cdev);
@@ -1033,14 +1046,14 @@ 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;
}
/* Check for clear pending */
if (cqr->status == DASD_CQR_CLEAR_PENDING &&
- irb->scsw.cmd.fctl & SCSW_FCTL_CLEAR_FUNC) {
+ scsw_fctl(&irb->scsw) & SCSW_FCTL_CLEAR_FUNC) {
cqr->status = DASD_CQR_CLEARED;
dasd_device_clear_timer(device);
wake_up(&dasd_flush_wq);
@@ -1048,19 +1061,17 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
return;
}
- /* check status - the request might have been killed by dyn detach */
+ /* 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 (irb->scsw.cmd.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) &&
- irb->scsw.cmd.cstat == 0 && !irb->esw.esw0.erw.cons) {
+ if (scsw_dstat(&irb->scsw) == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) &&
+ scsw_cstat(&irb->scsw) == 0) {
/* request was completed successfully */
cqr->status = DASD_CQR_SUCCESS;
cqr->stopclk = now;
@@ -1071,18 +1082,23 @@ 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)",
- cqr->retries);
+ 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;
next = cqr;
@@ -1093,10 +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);
@@ -1169,6 +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);
@@ -1189,10 +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)
@@ -1217,18 +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);
}
}
}
@@ -1290,10 +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;
}
@@ -1537,10 +1549,9 @@ 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",
- cqr, rc);
+ dev_err(&device->cdev->dev,
+ "Cancelling request %p failed with rc=%d\n",
+ cqr, rc);
} else {
cqr->stopclk = get_clock();
rc = 1;
@@ -1617,7 +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);
}
@@ -1991,8 +2002,11 @@ static void dasd_setup_queue(struct dasd_block *block)
blk_queue_max_sectors(block->request_queue, max);
blk_queue_max_phys_segments(block->request_queue, -1L);
blk_queue_max_hw_segments(block->request_queue, -1L);
- blk_queue_max_segment_size(block->request_queue, -1L);
- blk_queue_segment_boundary(block->request_queue, -1L);
+ /* with page sized segments we can translate each segement into
+ * one idaw/tidaw
+ */
+ blk_queue_max_segment_size(block->request_queue, PAGE_SIZE);
+ blk_queue_segment_boundary(block->request_queue, PAGE_SIZE - 1);
blk_queue_ordered(block->request_queue, QUEUE_ORDERED_DRAIN, NULL);
}
@@ -2043,8 +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;
}
@@ -2101,7 +2116,8 @@ dasd_device_operations = {
.owner = THIS_MODULE,
.open = dasd_open,
.release = dasd_release,
- .locked_ioctl = dasd_ioctl,
+ .ioctl = dasd_ioctl,
+ .compat_ioctl = dasd_ioctl,
.getgeo = dasd_getgeo,
};
@@ -2143,14 +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;
@@ -2166,9 +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;
}
@@ -2232,10 +2246,9 @@ 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",
- dev_name(&cdev->dev));
+ pr_warning("%s Setting the DASD online failed because "
+ "of missing DIAG discipline\n",
+ dev_name(&cdev->dev));
dasd_delete_device(device);
return -ENODEV;
}
@@ -2256,10 +2269,9 @@ 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",
- dev_name(&cdev->dev), discipline->name, rc);
+ 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);
dasd_delete_device(device);
@@ -2268,9 +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)
@@ -2314,13 +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;
@@ -2393,8 +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;
}
@@ -2431,6 +2444,40 @@ int dasd_generic_read_dev_chars(struct dasd_device *device, char *magic,
}
EXPORT_SYMBOL_GPL(dasd_generic_read_dev_chars);
+/*
+ * In command mode and transport mode we need to look for sense
+ * data in different places. The sense data itself is allways
+ * an array of 32 bytes, so we can unify the sense data access
+ * for both modes.
+ */
+char *dasd_get_sense(struct irb *irb)
+{
+ struct tsb *tsb = NULL;
+ char *sense = NULL;
+
+ if (scsw_is_tm(&irb->scsw) && (irb->scsw.tm.fcxs == 0x01)) {
+ if (irb->scsw.tm.tcw)
+ tsb = tcw_get_tsb((struct tcw *)(unsigned long)
+ irb->scsw.tm.tcw);
+ if (tsb && tsb->length == 64 && tsb->flags)
+ switch (tsb->flags & 0x07) {
+ case 1: /* tsa_iostat */
+ sense = tsb->tsa.iostat.sense;
+ break;
+ case 2: /* tsa_ddpc */
+ sense = tsb->tsa.ddpc.sense;
+ break;
+ default:
+ /* currently we don't use interrogate data */
+ break;
+ }
+ } else if (irb->esw.esw0.erw.cons) {
+ sense = irb->ecw;
+ }
+ return sense;
+}
+EXPORT_SYMBOL_GPL(dasd_get_sense);
+
static int __init dasd_init(void)
{
int rc;
@@ -2472,7 +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;
}
diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c
index d82aad5224f..27991b69205 100644
--- a/drivers/s390/block/dasd_3990_erp.c
+++ b/drivers/s390/block/dasd_3990_erp.c
@@ -7,6 +7,8 @@
*
*/
+#define KMSG_COMPONENT "dasd"
+
#include <linux/timer.h>
#include <linux/slab.h>
#include <asm/idals.h>
@@ -75,7 +77,7 @@ dasd_3990_erp_block_queue(struct dasd_ccw_req * erp, int expires)
struct dasd_device *device = erp->startdev;
unsigned long flags;
- DEV_MESSAGE(KERN_INFO, device,
+ DBF_DEV_EVENT(DBF_INFO, device,
"blocking request queue for %is", expires/HZ);
spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags);
@@ -114,9 +116,9 @@ dasd_3990_erp_int_req(struct dasd_ccw_req * erp)
} else {
/* issue a message and wait for 'device ready' interrupt */
- DEV_MESSAGE(KERN_ERR, device, "%s",
+ dev_err(&device->cdev->dev,
"is offline or not installed - "
- "INTERVENTION REQUIRED!!");
+ "INTERVENTION REQUIRED!!\n");
dasd_3990_erp_block_queue(erp, 60*HZ);
}
@@ -158,7 +160,7 @@ dasd_3990_erp_alternate_path(struct dasd_ccw_req * erp)
if ((erp->lpm & opm) != 0x00) {
- DEV_MESSAGE(KERN_DEBUG, device,
+ DBF_DEV_EVENT(DBF_WARNING, device,
"try alternate lpm=%x (lpum=%x / opm=%x)",
erp->lpm, erp->irb.esw.esw0.sublog.lpum, opm);
@@ -166,10 +168,9 @@ dasd_3990_erp_alternate_path(struct dasd_ccw_req * erp)
erp->status = DASD_CQR_FILLED;
erp->retries = 10;
} else {
- DEV_MESSAGE(KERN_ERR, device,
- "No alternate channel path left (lpum=%x / "
- "opm=%x) -> permanent error",
- erp->irb.esw.esw0.sublog.lpum, opm);
+ dev_err(&device->cdev->dev,
+ "The DASD cannot be reached on any path (lpum=%x"
+ "/opm=%x)\n", erp->irb.esw.esw0.sublog.lpum, opm);
/* post request with permanent error */
erp->status = DASD_CQR_FAILED;
@@ -204,8 +205,8 @@ dasd_3990_erp_DCTL(struct dasd_ccw_req * erp, char modifier)
sizeof(struct DCTL_data),
device);
if (IS_ERR(dctl_cqr)) {
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "Unable to allocate DCTL-CQR");
+ dev_err(&device->cdev->dev,
+ "Unable to allocate DCTL-CQR\n");
erp->status = DASD_CQR_FAILED;
return erp;
}
@@ -294,7 +295,7 @@ dasd_3990_erp_action_4(struct dasd_ccw_req * erp, char *sense)
/* interrupt (this enables easier enqueing of the cqr) */
if (erp->function != dasd_3990_erp_action_4) {
- DEV_MESSAGE(KERN_INFO, device, "%s",
+ DBF_DEV_EVENT(DBF_INFO, device, "%s",
"dasd_3990_erp_action_4: first time retry");
erp->retries = 256;
@@ -303,7 +304,7 @@ dasd_3990_erp_action_4(struct dasd_ccw_req * erp, char *sense)
} else {
if (sense && (sense[25] == 0x1D)) { /* state change pending */
- DEV_MESSAGE(KERN_INFO, device,
+ DBF_DEV_EVENT(DBF_INFO, device,
"waiting for state change pending "
"interrupt, %d retries left",
erp->retries);
@@ -311,15 +312,14 @@ dasd_3990_erp_action_4(struct dasd_ccw_req * erp, char *sense)
dasd_3990_erp_block_queue(erp, 30*HZ);
} else if (sense && (sense[25] == 0x1E)) { /* busy */
- DEV_MESSAGE(KERN_INFO, device,
+ DBF_DEV_EVENT(DBF_INFO, device,
"busy - redriving request later, "
"%d retries left",
erp->retries);
dasd_3990_erp_block_queue(erp, HZ);
} else {
-
/* no state change pending - retry */
- DEV_MESSAGE (KERN_INFO, device,
+ DBF_DEV_EVENT(DBF_INFO, device,
"redriving request immediately, "
"%d retries left",
erp->retries);
@@ -384,6 +384,7 @@ dasd_3990_handle_env_data(struct dasd_ccw_req * erp, char *sense)
struct dasd_device *device = erp->startdev;
char msg_format = (sense[7] & 0xF0);
char msg_no = (sense[7] & 0x0F);
+ char errorstring[ERRORLENGTH];
switch (msg_format) {
case 0x00: /* Format 0 - Program or System Checks */
@@ -394,95 +395,97 @@ dasd_3990_handle_env_data(struct dasd_ccw_req * erp, char *sense)
case 0x00: /* No Message */
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Invalid Command");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Invalid Command\n");
break;
case 0x02:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Invalid Command "
- "Sequence");
+ "Sequence\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - CCW Count less than "
- "required");
+ "required\n");
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Invalid Parameter");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Invalid Parameter\n");
break;
case 0x05:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Diagnostic of Sepecial"
- " Command Violates File Mask");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Diagnostic of Special"
+ " Command Violates File Mask\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Channel Returned with "
- "Incorrect retry CCW");
+ "Incorrect retry CCW\n");
break;
case 0x08:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Reset Notification");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Reset Notification\n");
break;
case 0x09:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Storage Path Restart");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Storage Path Restart\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device,
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Channel requested "
- "... %02x", sense[8]);
+ "... %02x\n", sense[8]);
break;
case 0x0B:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Invalid Defective/"
- "Alternate Track Pointer");
+ "Alternate Track Pointer\n");
break;
case 0x0C:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - DPS Installation "
- "Check");
+ "Check\n");
break;
case 0x0E:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Command Invalid on "
- "Secondary Address");
+ "Secondary Address\n");
break;
case 0x0F:
- DEV_MESSAGE(KERN_WARNING, device,
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Status Not As "
- "Required: reason %02x", sense[8]);
+ "Required: reason %02x\n",
+ sense[8]);
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Reseved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Reserved\n");
}
} else {
switch (msg_no) {
case 0x00: /* No Message */
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Device Error Source");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Device Error "
+ "Source\n");
break;
case 0x02:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Reserved\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device,
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Device Fenced - "
- "device = %02x", sense[4]);
+ "device = %02x\n", sense[4]);
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Data Pinned for "
- "Device");
+ "Device\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Reserved\n");
}
}
break;
@@ -492,348 +495,352 @@ dasd_3990_handle_env_data(struct dasd_ccw_req * erp, char *sense)
case 0x00: /* No Message */
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 1 - Device Status 1 not as "
- "expected");
+ "expected\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Index missing");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Index missing\n");
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Interruption cannot be reset");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Interruption cannot be "
+ "reset\n");
break;
case 0x05:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 1 - Device did not respond to "
- "selection");
+ "selection\n");
break;
case 0x06:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 1 - Device check-2 error or Set "
- "Sector is not complete");
+ "Sector is not complete\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 1 - Head address does not "
- "compare");
+ "compare\n");
break;
case 0x08:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Device status 1 not valid");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Device status 1 not valid\n");
break;
case 0x09:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Device not ready");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Device not ready\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 1 - Track physical address did "
- "not compare");
+ "not compare\n");
break;
case 0x0B:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Missing device address bit");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Missing device address bit\n");
break;
case 0x0C:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Drive motor switch is off");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Drive motor switch is off\n");
break;
case 0x0D:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Seek incomplete");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Seek incomplete\n");
break;
case 0x0E:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 1 - Cylinder address did not "
- "compare");
+ "compare\n");
break;
case 0x0F:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 1 - Offset active cannot be "
- "reset");
+ "reset\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Reserved\n");
}
break;
case 0x20: /* Format 2 - 3990 Equipment Checks */
switch (msg_no) {
case 0x08:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 2 - 3990 check-2 error");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 2 - 3990 check-2 error\n");
break;
case 0x0E:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 2 - Support facility errors");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 2 - Support facility errors\n");
break;
case 0x0F:
- DEV_MESSAGE(KERN_WARNING, device,
- "FORMAT 2 - Microcode detected error %02x",
- sense[8]);
+ dev_warn(&device->cdev->dev,
+ "FORMAT 2 - Microcode detected error "
+ "%02x\n",
+ sense[8]);
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 2 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 2 - Reserved\n");
}
break;
case 0x30: /* Format 3 - 3990 Control Checks */
switch (msg_no) {
case 0x0F:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 3 - Allegiance terminated");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 3 - Allegiance terminated\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 3 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 3 - Reserved\n");
}
break;
case 0x40: /* Format 4 - Data Checks */
switch (msg_no) {
case 0x00:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 4 - Home address area error");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 4 - Home address area error\n");
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 4 - Count area error");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 4 - Count area error\n");
break;
case 0x02:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 4 - Key area error");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 4 - Key area error\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 4 - Data area error");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 4 - Data area error\n");
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - No sync byte in home address "
- "area");
+ "area\n");
break;
case 0x05:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - No sync byte in count address "
- "area");
+ "area\n");
break;
case 0x06:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 4 - No sync byte in key area");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 4 - No sync byte in key area\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 4 - No sync byte in data area");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 4 - No sync byte in data area\n");
break;
case 0x08:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - Home address area error; "
- "offset active");
+ "offset active\n");
break;
case 0x09:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - Count area error; offset "
- "active");
+ "active\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - Key area error; offset "
- "active");
+ "active\n");
break;
case 0x0B:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - Data area error; "
- "offset active");
+ "offset active\n");
break;
case 0x0C:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - No sync byte in home "
- "address area; offset active");
+ "address area; offset active\n");
break;
case 0x0D:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - No syn byte in count "
- "address area; offset active");
+ "address area; offset active\n");
break;
case 0x0E:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - No sync byte in key area; "
- "offset active");
+ "offset active\n");
break;
case 0x0F:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - No syn byte in data area; "
- "offset active");
+ "offset active\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 4 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 4 - Reserved\n");
}
break;
case 0x50: /* Format 5 - Data Check with displacement information */
switch (msg_no) {
case 0x00:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the "
- "home address area");
+ "home address area\n");
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 5 - Data Check in the count area");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 5 - Data Check in the count "
+ "area\n");
break;
case 0x02:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 5 - Data Check in the key area");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 5 - Data Check in the key area\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 5 - Data Check in the data area");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 5 - Data Check in the data "
+ "area\n");
break;
case 0x08:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the "
- "home address area; offset active");
+ "home address area; offset active\n");
break;
case 0x09:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the count area; "
- "offset active");
+ "offset active\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the key area; "
- "offset active");
+ "offset active\n");
break;
case 0x0B:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the data area; "
- "offset active");
+ "offset active\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 5 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 5 - Reserved\n");
}
break;
case 0x60: /* Format 6 - Usage Statistics/Overrun Errors */
switch (msg_no) {
case 0x00:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel A");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel A\n");
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel B");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel B\n");
break;
case 0x02:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel C");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel C\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel D");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel D\n");
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel E");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel E\n");
break;
case 0x05:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel F");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel F\n");
break;
case 0x06:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel G");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel G\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel H");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel H\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Reserved\n");
}
break;
case 0x70: /* Format 7 - Device Connection Control Checks */
switch (msg_no) {
case 0x00:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - RCC initiated by a connection "
- "check alert");
+ "check alert\n");
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - RCC 1 sequence not "
- "successful");
+ "successful\n");
break;
case 0x02:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - RCC 1 and RCC 2 sequences not "
- "successful");
+ "successful\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - Invalid tag-in during "
- "selection sequence");
+ "selection sequence\n");
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 7 - extra RCC required");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 7 - extra RCC required\n");
break;
case 0x05:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - Invalid DCC selection "
- "response or timeout");
+ "response or timeout\n");
break;
case 0x06:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - Missing end operation; device "
- "transfer complete");
+ "transfer complete\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - Missing end operation; device "
- "transfer incomplete");
+ "transfer incomplete\n");
break;
case 0x08:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - Invalid tag-in for an "
- "immediate command sequence");
+ "immediate command sequence\n");
break;
case 0x09:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - Invalid tag-in for an "
- "extended command sequence");
+ "extended command sequence\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - 3990 microcode time out when "
- "stopping selection");
+ "stopping selection\n");
break;
case 0x0B:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - No response to selection "
- "after a poll interruption");
+ "after a poll interruption\n");
break;
case 0x0C:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - Permanent path error (DASD "
- "controller not available)");
+ "controller not available)\n");
break;
case 0x0D:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - DASD controller not available"
- " on disconnected command chain");
+ " on disconnected command chain\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 7 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 7 - Reserved\n");
}
break;
@@ -841,52 +848,52 @@ dasd_3990_handle_env_data(struct dasd_ccw_req * erp, char *sense)
switch (msg_no) {
case 0x00: /* No Message */
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - Error correction code "
- "hardware fault");
+ "hardware fault\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - Unexpected end operation "
- "response code");
+ "response code\n");
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - End operation with transfer "
- "count not zero");
+ "count not zero\n");
break;
case 0x05:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - End operation with transfer "
- "count zero");
+ "count zero\n");
break;
case 0x06:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - DPS checks after a system "
- "reset or selective reset");
+ "reset or selective reset\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 8 - DPS cannot be filled");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 8 - DPS cannot be filled\n");
break;
case 0x08:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - Short busy time-out during "
- "device selection");
+ "device selection\n");
break;
case 0x09:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - DASD controller failed to "
- "set or reset the long busy latch");
+ "set or reset the long busy latch\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - No interruption from device "
- "during a command chain");
+ "during a command chain\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 8 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 8 - Reserved\n");
}
break;
@@ -895,97 +902,100 @@ dasd_3990_handle_env_data(struct dasd_ccw_req * erp, char *sense)
case 0x00:
break; /* No Message */
case 0x06:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 9 - Device check-2 error");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 9 - Device check-2 error\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 9 - Head address did not compare");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 9 - Head address did not "
+ "compare\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 9 - Track physical address did "
- "not compare while oriented");
+ "not compare while oriented\n");
break;
case 0x0E:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 9 - Cylinder address did not "
- "compare");
+ "compare\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 9 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 9 - Reserved\n");
}
break;
case 0xF0: /* Format F - Cache Storage Checks */
switch (msg_no) {
case 0x00:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - Operation Terminated");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - Operation Terminated\n");
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - Subsystem Processing Error");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - Subsystem Processing Error\n");
break;
case 0x02:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT F - Cache or nonvolatile storage "
- "equipment failure");
+ "equipment failure\n");
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - Caching terminated");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - Caching terminated\n");
break;
case 0x06:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT F - Cache fast write access not "
- "authorized");
+ "authorized\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - Track format incorrect");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - Track format incorrect\n");
break;
case 0x09:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - Caching reinitiated");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - Caching reinitiated\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT F - Nonvolatile storage "
- "terminated");
+ "terminated\n");
break;
case 0x0B:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - Volume is suspended duplex");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - Volume is suspended duplex\n");
/* call extended error reporting (EER) */
dasd_eer_write(device, erp->refers,
DASD_EER_PPRCSUSPEND);
break;
case 0x0C:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - Subsystem status connot be "
- "determined");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - Subsystem status cannot be "
+ "determined\n");
break;
case 0x0D:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT F - Caching status reset to "
- "default");
+ "default\n");
break;
case 0x0E:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - DASD Fast Write inhibited");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - DASD Fast Write inhibited\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT D - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT D - Reserved\n");
}
break;
- default: /* unknown message format - should not happen */
- DEV_MESSAGE (KERN_WARNING, device,
- "unknown message format %02x",
- msg_format);
+ default: /* unknown message format - should not happen
+ internal error 03 - unknown message format */
+ snprintf(errorstring, ERRORLENGTH, "03 %x02", msg_format);
+ dev_err(&device->cdev->dev,
+ "An error occurred in the DASD device driver, "
+ "reason=%s\n", errorstring);
break;
} /* end switch message format */
@@ -1015,7 +1025,7 @@ dasd_3990_erp_com_rej(struct dasd_ccw_req * erp, char *sense)
/* env data present (ACTION 10 - retry should work) */
if (sense[2] & SNS2_ENV_DATA_PRESENT) {
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Command Reject - environmental data present");
dasd_3990_handle_env_data(erp, sense);
@@ -1023,9 +1033,10 @@ dasd_3990_erp_com_rej(struct dasd_ccw_req * erp, char *sense)
erp->retries = 5;
} else {
- /* fatal error - set status to FAILED */
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "Command Reject - Fatal error");
+ /* fatal error - set status to FAILED
+ internal error 09 - Command Reject */
+ dev_err(&device->cdev->dev, "An error occurred in the DASD "
+ "device driver, reason=%s\n", "09");
erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
}
@@ -1061,7 +1072,7 @@ dasd_3990_erp_bus_out(struct dasd_ccw_req * erp)
} else {
/* issue a message and wait for 'device ready' interrupt */
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"bus out parity error or BOPC requested by "
"channel");
@@ -1093,21 +1104,19 @@ dasd_3990_erp_equip_check(struct dasd_ccw_req * erp, char *sense)
erp->function = dasd_3990_erp_equip_check;
if (sense[1] & SNS1_WRITE_INHIBITED) {
+ dev_info(&device->cdev->dev,
+ "Write inhibited path encountered\n");
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
- "Write inhibited path encountered");
-
- /* vary path offline */
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "Path should be varied off-line. "
- "This is not implemented yet \n - please report "
- "to linux390@de.ibm.com");
+ /* vary path offline
+ internal error 04 - Path should be varied off-line.*/
+ dev_err(&device->cdev->dev, "An error occurred in the DASD "
+ "device driver, reason=%s\n", "04");
erp = dasd_3990_erp_action_1(erp);
} else if (sense[2] & SNS2_ENV_DATA_PRESENT) {
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Equipment Check - " "environmental data present");
dasd_3990_handle_env_data(erp, sense);
@@ -1116,7 +1125,7 @@ dasd_3990_erp_equip_check(struct dasd_ccw_req * erp, char *sense)
} else if (sense[1] & SNS1_PERM_ERR) {
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Equipment Check - retry exhausted or "
"undesirable");
@@ -1125,7 +1134,7 @@ dasd_3990_erp_equip_check(struct dasd_ccw_req * erp, char *sense)
} else {
/* all other equipment checks - Action 5 */
/* rest is done when retries == 0 */
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Equipment check or processing error");
erp = dasd_3990_erp_action_5(erp);
@@ -1156,9 +1165,9 @@ dasd_3990_erp_data_check(struct dasd_ccw_req * erp, char *sense)
if (sense[2] & SNS2_CORRECTABLE) { /* correctable data check */
/* issue message that the data has been corrected */
- DEV_MESSAGE(KERN_EMERG, device, "%s",
+ dev_emerg(&device->cdev->dev,
"Data recovered during retry with PCI "
- "fetch mode active");
+ "fetch mode active\n");
/* not possible to handle this situation in Linux */
panic("No way to inform application about the possibly "
@@ -1166,7 +1175,7 @@ dasd_3990_erp_data_check(struct dasd_ccw_req * erp, char *sense)
} else if (sense[2] & SNS2_ENV_DATA_PRESENT) {
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Uncorrectable data check recovered secondary "
"addr of duplex pair");
@@ -1174,7 +1183,7 @@ dasd_3990_erp_data_check(struct dasd_ccw_req * erp, char *sense)
} else if (sense[1] & SNS1_PERM_ERR) {
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Uncorrectable data check with internal "
"retry exhausted");
@@ -1182,7 +1191,7 @@ dasd_3990_erp_data_check(struct dasd_ccw_req * erp, char *sense)
} else {
/* all other data checks */
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Uncorrectable data check with retry count "
"exhausted...");
@@ -1212,7 +1221,7 @@ dasd_3990_erp_overrun(struct dasd_ccw_req * erp, char *sense)
erp->function = dasd_3990_erp_overrun;
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Overrun - service overrun or overrun"
" error requested by channel");
@@ -1243,7 +1252,7 @@ dasd_3990_erp_inv_format(struct dasd_ccw_req * erp, char *sense)
if (sense[2] & SNS2_ENV_DATA_PRESENT) {
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Track format error when destaging or "
"staging data");
@@ -1252,8 +1261,10 @@ dasd_3990_erp_inv_format(struct dasd_ccw_req * erp, char *sense)
erp = dasd_3990_erp_action_4(erp, sense);
} else {
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "Invalid Track Format - Fatal error");
+ /* internal error 06 - The track format is not valid*/
+ dev_err(&device->cdev->dev,
+ "An error occurred in the DASD device driver, "
+ "reason=%s\n", "06");
erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
}
@@ -1279,8 +1290,8 @@ dasd_3990_erp_EOC(struct dasd_ccw_req * default_erp, char *sense)
struct dasd_device *device = default_erp->startdev;
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "End-of-Cylinder - must never happen");
+ dev_err(&device->cdev->dev,
+ "The cylinder data for accessing the DASD is inconsistent\n");
/* implement action 7 - BUG */
return dasd_3990_erp_cleanup(default_erp, DASD_CQR_FAILED);
@@ -1306,7 +1317,7 @@ dasd_3990_erp_env_data(struct dasd_ccw_req * erp, char *sense)
erp->function = dasd_3990_erp_env_data;
- DEV_MESSAGE(KERN_DEBUG, device, "%s", "Environmental data present");
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Environmental data present");
dasd_3990_handle_env_data(erp, sense);
@@ -1339,8 +1350,8 @@ dasd_3990_erp_no_rec(struct dasd_ccw_req * default_erp, char *sense)
struct dasd_device *device = default_erp->startdev;
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "No Record Found - Fatal error ");
+ dev_err(&device->cdev->dev,
+ "The specified record was not found\n");
return dasd_3990_erp_cleanup(default_erp, DASD_CQR_FAILED);
@@ -1365,7 +1376,8 @@ dasd_3990_erp_file_prot(struct dasd_ccw_req * erp)
struct dasd_device *device = erp->startdev;
- DEV_MESSAGE(KERN_ERR, device, "%s", "File Protected");
+ dev_err(&device->cdev->dev, "Accessing the DASD failed because of "
+ "a hardware error\n");
return dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
@@ -1394,7 +1406,7 @@ static struct dasd_ccw_req *dasd_3990_erp_inspect_alias(
if (cqr->block &&
(cqr->block->base != cqr->startdev)) {
if (cqr->startdev->features & DASD_FEATURE_ERPLOG) {
- DEV_MESSAGE(KERN_ERR, cqr->startdev,
+ DBF_DEV_EVENT(DBF_ERR, cqr->startdev,
"ERP on alias device for request %p,"
" recover on base device %s", cqr,
dev_name(&cqr->block->base->cdev->dev));
@@ -1511,7 +1523,7 @@ dasd_3990_erp_action_10_32(struct dasd_ccw_req * erp, char *sense)
erp->retries = 256;
erp->function = dasd_3990_erp_action_10_32;
- DEV_MESSAGE(KERN_DEBUG, device, "%s", "Perform logging requested");
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Perform logging requested");
return erp;
@@ -1549,7 +1561,7 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense)
char *LO_data; /* LO_eckd_data_t */
struct ccw1 *ccw, *oldccw;
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Write not finished because of unexpected condition");
default_erp->function = dasd_3990_erp_action_1B_32;
@@ -1561,10 +1573,16 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense)
cqr = cqr->refers;
}
+ if (scsw_is_tm(&cqr->irb.scsw)) {
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
+ "32 bit sense, action 1B is not defined"
+ " in transport mode - just retry");
+ return default_erp;
+ }
+
/* for imprecise ending just do default erp */
if (sense[1] & 0x01) {
-
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Imprecise ending is set - just retry");
return default_erp;
@@ -1575,8 +1593,7 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense)
cpa = default_erp->refers->irb.scsw.cmd.cpa;
if (cpa == 0) {
-
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Unable to determine address of the CCW "
"to be restarted");
@@ -1590,7 +1607,9 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense)
sizeof(struct LO_eckd_data), device);
if (IS_ERR(erp)) {
- DEV_MESSAGE(KERN_ERR, device, "%s", "Unable to allocate ERP");
+ /* internal error 01 - Unable to allocate ERP */
+ dev_err(&device->cdev->dev, "An error occurred in the DASD "
+ "device driver, reason=%s\n", "01");
return dasd_3990_erp_cleanup(default_erp, DASD_CQR_FAILED);
}
@@ -1599,7 +1618,7 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense)
oldccw = cqr->cpaddr;
if (oldccw->cmd_code == DASD_ECKD_CCW_PFX) {
PFX_data = cqr->data;
- memcpy(DE_data, &PFX_data->define_extend,
+ memcpy(DE_data, &PFX_data->define_extent,
sizeof(struct DE_eckd_data));
} else
memcpy(DE_data, cqr->data, sizeof(struct DE_eckd_data));
@@ -1608,10 +1627,7 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense)
LO_data = erp->data + sizeof(struct DE_eckd_data);
if ((sense[3] == 0x01) && (LO_data[1] & 0x01)) {
-
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "BUG - this should not happen");
-
+ /* should not */
return dasd_3990_erp_cleanup(default_erp, DASD_CQR_FAILED);
}
@@ -1701,7 +1717,7 @@ dasd_3990_update_1B(struct dasd_ccw_req * previous_erp, char *sense)
char *LO_data; /* struct LO_eckd_data */
struct ccw1 *ccw;
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Write not finished because of unexpected condition"
" - follow on");
@@ -1712,10 +1728,16 @@ dasd_3990_update_1B(struct dasd_ccw_req * previous_erp, char *sense)
cqr = cqr->refers;
}
+ if (scsw_is_tm(&cqr->irb.scsw)) {
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
+ "32 bit sense, action 1B, update,"
+ " in transport mode - just retry");
+ return previous_erp;
+ }
+
/* for imprecise ending just do default erp */
if (sense[1] & 0x01) {
-
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Imprecise ending is set - just retry");
previous_erp->status = DASD_CQR_FILLED;
@@ -1728,10 +1750,10 @@ dasd_3990_update_1B(struct dasd_ccw_req * previous_erp, char *sense)
cpa = previous_erp->irb.scsw.cmd.cpa;
if (cpa == 0) {
-
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
- "Unable to determine address of the CCW "
- "to be restarted");
+ /* internal error 02 -
+ Unable to determine address of the CCW to be restarted */
+ dev_err(&device->cdev->dev, "An error occurred in the DASD "
+ "device driver, reason=%s\n", "02");
previous_erp->status = DASD_CQR_FAILED;
@@ -1744,10 +1766,7 @@ dasd_3990_update_1B(struct dasd_ccw_req * previous_erp, char *sense)
LO_data = erp->data + sizeof(struct DE_eckd_data);
if ((sense[3] == 0x01) && (LO_data[1] & 0x01)) {
-
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "BUG - this should not happen");
-
+ /* should not happen */
previous_erp->status = DASD_CQR_FAILED;
return previous_erp;
@@ -1935,14 +1954,13 @@ dasd_3990_erp_compound_config(struct dasd_ccw_req * erp, char *sense)
if ((sense[25] & DASD_SENSE_BIT_1) && (sense[26] & DASD_SENSE_BIT_2)) {
- /* set to suspended duplex state then restart */
+ /* set to suspended duplex state then restart
+ internal error 05 - Set device to suspended duplex state
+ should be done */
struct dasd_device *device = erp->startdev;
-
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "Set device to suspended duplex state should be "
- "done!\n"
- "This is not implemented yet (for compound ERP)"
- " - please report to linux390@de.ibm.com");
+ dev_err(&device->cdev->dev,
+ "An error occurred in the DASD device driver, "
+ "reason=%s\n", "05");
}
@@ -2012,15 +2030,14 @@ dasd_3990_erp_handle_sim(struct dasd_device *device, char *sense)
{
/* print message according to log or message to operator mode */
if ((sense[24] & DASD_SIM_MSG_TO_OP) || (sense[1] & 0x10)) {
-
/* print SIM SRC from RefCode */
- DEV_MESSAGE(KERN_ERR, device, "SIM - SRC: "
- "%02x%02x%02x%02x", sense[22],
+ dev_err(&device->cdev->dev, "SIM - SRC: "
+ "%02x%02x%02x%02x\n", sense[22],
sense[23], sense[11], sense[12]);
} else if (sense[24] & DASD_SIM_LOG) {
/* print SIM SRC Refcode */
- DEV_MESSAGE(KERN_WARNING, device, "SIM - SRC: "
- "%02x%02x%02x%02x", sense[22],
+ dev_warn(&device->cdev->dev, "log SIM - SRC: "
+ "%02x%02x%02x%02x\n", sense[22],
sense[23], sense[11], sense[12]);
}
}
@@ -2063,14 +2080,14 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense)
switch (sense[25]) {
case 0x00: /* success - use default ERP for retries */
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_DEBUG, device, "%s",
"ERP called for successful request"
" - just retry");
break;
case 0x01: /* fatal error */
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "Retry not recommended - Fatal error");
+ dev_err(&device->cdev->dev,
+ "ERP failed for the DASD\n");
erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
break;
@@ -2080,13 +2097,10 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense)
erp = dasd_3990_erp_int_req(erp);
break;
- case 0x0F: /* length mismatch during update write command */
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "update write command error - should not "
- "happen;\n"
- "Please send this message together with "
- "the above sense data to linux390@de."
- "ibm.com");
+ case 0x0F: /* length mismatch during update write command
+ internal error 08 - update write command error*/
+ dev_err(&device->cdev->dev, "An error occurred in the "
+ "DASD device driver, reason=%s\n", "08");
erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
break;
@@ -2095,13 +2109,12 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense)
erp = dasd_3990_erp_action_10_32(erp, sense);
break;
- case 0x15: /* next track outside defined extend */
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "next track outside defined extend - "
- "should not happen;\n"
- "Please send this message together with "
- "the above sense data to linux390@de."
- "ibm.com");
+ case 0x15: /* next track outside defined extend
+ internal error 07 - The next track is not
+ within the defined storage extent */
+ dev_err(&device->cdev->dev,
+ "An error occurred in the DASD device driver, "
+ "reason=%s\n", "07");
erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
break;
@@ -2112,9 +2125,9 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense)
break;
case 0x1C: /* invalid data */
- DEV_MESSAGE(KERN_EMERG, device, "%s",
+ dev_emerg(&device->cdev->dev,
"Data recovered during retry with PCI "
- "fetch mode active");
+ "fetch mode active\n");
/* not possible to handle this situation in Linux */
panic
@@ -2123,7 +2136,7 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense)
break;
case 0x1D: /* state-change pending */
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"A State change pending condition exists "
"for the subsystem or device");
@@ -2131,7 +2144,7 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense)
break;
case 0x1E: /* busy */
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Busy condition exists "
"for the subsystem or device");
erp = dasd_3990_erp_action_4(erp, sense);
@@ -2171,9 +2184,9 @@ dasd_3990_erp_control_check(struct dasd_ccw_req *erp)
{
struct dasd_device *device = erp->startdev;
- if (erp->refers->irb.scsw.cmd.cstat & (SCHN_STAT_INTF_CTRL_CHK
+ if (scsw_cstat(&erp->refers->irb.scsw) & (SCHN_STAT_INTF_CTRL_CHK
| SCHN_STAT_CHN_CTRL_CHK)) {
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"channel or interface control check");
erp = dasd_3990_erp_action_4(erp, NULL);
}
@@ -2193,21 +2206,23 @@ dasd_3990_erp_control_check(struct dasd_ccw_req *erp)
* erp_new contens was possibly modified
*/
static struct dasd_ccw_req *
-dasd_3990_erp_inspect(struct dasd_ccw_req * erp)
+dasd_3990_erp_inspect(struct dasd_ccw_req *erp)
{
struct dasd_ccw_req *erp_new = NULL;
- /* sense data are located in the refers record of the */
- /* already set up new ERP ! */
- char *sense = erp->refers->irb.ecw;
+ char *sense;
/* if this problem occured on an alias retry on base */
erp_new = dasd_3990_erp_inspect_alias(erp);
if (erp_new)
return erp_new;
- /* check if no concurrent sens is available */
- if (!erp->refers->irb.esw.esw0.erw.cons)
+ /* sense data are located in the refers record of the
+ * already set up new ERP !
+ * check if concurrent sens is available
+ */
+ sense = dasd_get_sense(&erp->refers->irb);
+ if (!sense)
erp_new = dasd_3990_erp_control_check(erp);
/* distinguish between 24 and 32 byte sense data */
else if (sense[27] & DASD_SENSE_BIT_0) {
@@ -2231,7 +2246,11 @@ dasd_3990_erp_inspect(struct dasd_ccw_req * erp)
* DESCRIPTION
* This funtion adds an additional request block (ERP) to the head of
* the given cqr (or erp).
- * This erp is initialized as an default erp (retry TIC)
+ * For a command mode cqr the erp is initialized as an default erp
+ * (retry TIC).
+ * For transport mode we make a copy of the original TCW (points to
+ * the original TCCB, TIDALs, etc.) but give it a fresh
+ * TSB so the original sense data will not be changed.
*
* PARAMETER
* cqr head of the current ERP-chain (or single cqr if
@@ -2239,25 +2258,35 @@ dasd_3990_erp_inspect(struct dasd_ccw_req * erp)
* RETURN VALUES
* erp pointer to new ERP-chain head
*/
-static struct dasd_ccw_req *
-dasd_3990_erp_add_erp(struct dasd_ccw_req * cqr)
+static struct dasd_ccw_req *dasd_3990_erp_add_erp(struct dasd_ccw_req *cqr)
{
struct dasd_device *device = cqr->startdev;
struct ccw1 *ccw;
-
- /* allocate additional request block */
struct dasd_ccw_req *erp;
+ int cplength, datasize;
+ struct tcw *tcw;
+ struct tsb *tsb;
+
+ if (cqr->cpmode == 1) {
+ cplength = 0;
+ datasize = sizeof(struct tcw) + sizeof(struct tsb);
+ } else {
+ cplength = 2;
+ datasize = 0;
+ }
- erp = dasd_alloc_erp_request((char *) &cqr->magic, 2, 0, device);
+ /* allocate additional request block */
+ erp = dasd_alloc_erp_request((char *) &cqr->magic,
+ cplength, datasize, device);
if (IS_ERR(erp)) {
if (cqr->retries <= 0) {
- DEV_MESSAGE(KERN_ERR, device, "%s",
+ DBF_DEV_EVENT(DBF_ERR, device, "%s",
"Unable to allocate ERP request");
cqr->status = DASD_CQR_FAILED;
cqr->stopclk = get_clock ();
} else {
- DEV_MESSAGE (KERN_ERR, device,
+ DBF_DEV_EVENT(DBF_ERR, device,
"Unable to allocate ERP request "
"(%i retries left)",
cqr->retries);
@@ -2266,13 +2295,24 @@ dasd_3990_erp_add_erp(struct dasd_ccw_req * cqr)
return cqr;
}
- /* initialize request with default TIC to current ERP/CQR */
- ccw = erp->cpaddr;
- ccw->cmd_code = CCW_CMD_NOOP;
- ccw->flags = CCW_FLAG_CC;
- ccw++;
- ccw->cmd_code = CCW_CMD_TIC;
- ccw->cda = (long)(cqr->cpaddr);
+ if (cqr->cpmode == 1) {
+ /* make a shallow copy of the original tcw but set new tsb */
+ erp->cpmode = 1;
+ erp->cpaddr = erp->data;
+ tcw = erp->data;
+ tsb = (struct tsb *) &tcw[1];
+ *tcw = *((struct tcw *)cqr->cpaddr);
+ tcw->tsb = (long)tsb;
+ } else {
+ /* initialize request with default TIC to current ERP/CQR */
+ ccw = erp->cpaddr;
+ ccw->cmd_code = CCW_CMD_NOOP;
+ ccw->flags = CCW_FLAG_CC;
+ ccw++;
+ ccw->cmd_code = CCW_CMD_TIC;
+ ccw->cda = (long)(cqr->cpaddr);
+ }
+
erp->function = dasd_3990_erp_add_erp;
erp->refers = cqr;
erp->startdev = device;
@@ -2282,7 +2322,6 @@ dasd_3990_erp_add_erp(struct dasd_ccw_req * cqr)
erp->expires = 0;
erp->retries = 256;
erp->buildclk = get_clock();
-
erp->status = DASD_CQR_FILLED;
return erp;
@@ -2340,28 +2379,33 @@ dasd_3990_erp_additional_erp(struct dasd_ccw_req * cqr)
* match 'boolean' for match found
* returns 1 if match found, otherwise 0.
*/
-static int
-dasd_3990_erp_error_match(struct dasd_ccw_req *cqr1, struct dasd_ccw_req *cqr2)
+static int dasd_3990_erp_error_match(struct dasd_ccw_req *cqr1,
+ struct dasd_ccw_req *cqr2)
{
+ char *sense1, *sense2;
if (cqr1->startdev != cqr2->startdev)
return 0;
- if (cqr1->irb.esw.esw0.erw.cons != cqr2->irb.esw.esw0.erw.cons)
- return 0;
+ sense1 = dasd_get_sense(&cqr1->irb);
+ sense2 = dasd_get_sense(&cqr2->irb);
- if ((cqr1->irb.esw.esw0.erw.cons == 0) &&
- (cqr2->irb.esw.esw0.erw.cons == 0)) {
- if ((cqr1->irb.scsw.cmd.cstat & (SCHN_STAT_INTF_CTRL_CHK |
- SCHN_STAT_CHN_CTRL_CHK)) ==
- (cqr2->irb.scsw.cmd.cstat & (SCHN_STAT_INTF_CTRL_CHK |
- SCHN_STAT_CHN_CTRL_CHK)))
+ /* one request has sense data, the other not -> no match, return 0 */
+ if (!sense1 != !sense2)
+ return 0;
+ /* no sense data in both cases -> check cstat for IFCC */
+ if (!sense1 && !sense2) {
+ if ((scsw_cstat(&cqr1->irb.scsw) & (SCHN_STAT_INTF_CTRL_CHK |
+ SCHN_STAT_CHN_CTRL_CHK)) ==
+ (scsw_cstat(&cqr2->irb.scsw) & (SCHN_STAT_INTF_CTRL_CHK |
+ SCHN_STAT_CHN_CTRL_CHK)))
return 1; /* match with ifcc*/
}
/* check sense data; byte 0-2,25,27 */
- if (!((memcmp (cqr1->irb.ecw, cqr2->irb.ecw, 3) == 0) &&
- (cqr1->irb.ecw[27] == cqr2->irb.ecw[27]) &&
- (cqr1->irb.ecw[25] == cqr2->irb.ecw[25]))) {
+ if (!(sense1 && sense2 &&
+ (memcmp(sense1, sense2, 3) == 0) &&
+ (sense1[27] == sense2[27]) &&
+ (sense1[25] == sense2[25]))) {
return 0; /* sense doesn't match */
}
@@ -2434,7 +2478,7 @@ dasd_3990_erp_further_erp(struct dasd_ccw_req *erp)
{
struct dasd_device *device = erp->startdev;
- char *sense = erp->irb.ecw;
+ char *sense = dasd_get_sense(&erp->irb);
/* check for 24 byte sense ERP */
if ((erp->function == dasd_3990_erp_bus_out) ||
@@ -2449,7 +2493,7 @@ dasd_3990_erp_further_erp(struct dasd_ccw_req *erp)
/* prepare erp for retry on different channel path */
erp = dasd_3990_erp_action_1(erp);
- if (!(sense[2] & DASD_SENSE_BIT_0)) {
+ if (sense && !(sense[2] & DASD_SENSE_BIT_0)) {
/* issue a Diagnostic Control command with an
* Inhibit Write subcommand */
@@ -2471,7 +2515,7 @@ dasd_3990_erp_further_erp(struct dasd_ccw_req *erp)
break;
}
default:
- DEV_MESSAGE(KERN_DEBUG, device,
+ DBF_DEV_EVENT(DBF_WARNING, device,
"invalid subcommand modifier 0x%x "
"for Diagnostic Control Command",
sense[25]);
@@ -2479,19 +2523,21 @@ dasd_3990_erp_further_erp(struct dasd_ccw_req *erp)
}
/* check for 32 byte sense ERP */
- } else if ((erp->function == dasd_3990_erp_compound_retry) ||
- (erp->function == dasd_3990_erp_compound_path) ||
- (erp->function == dasd_3990_erp_compound_code) ||
- (erp->function == dasd_3990_erp_compound_config)) {
+ } else if (sense &&
+ ((erp->function == dasd_3990_erp_compound_retry) ||
+ (erp->function == dasd_3990_erp_compound_path) ||
+ (erp->function == dasd_3990_erp_compound_code) ||
+ (erp->function == dasd_3990_erp_compound_config))) {
erp = dasd_3990_erp_compound(erp, sense);
} else {
- /* No retry left and no additional special handling */
- /*necessary */
- DEV_MESSAGE(KERN_ERR, device,
- "no retries left for erp %p - "
- "set status to FAILED", erp);
+ /*
+ * No retry left and no additional special handling
+ * necessary
+ */
+ dev_err(&device->cdev->dev,
+ "ERP %p has run out of retries and failed\n", erp);
erp->status = DASD_CQR_FAILED;
}
@@ -2548,24 +2594,25 @@ dasd_3990_erp_handle_match_erp(struct dasd_ccw_req *erp_head,
if (erp->retries > 0) {
- char *sense = erp->refers->irb.ecw;
+ char *sense = dasd_get_sense(&erp->refers->irb);
/* check for special retries */
- if (erp->function == dasd_3990_erp_action_4) {
+ if (sense && erp->function == dasd_3990_erp_action_4) {
erp = dasd_3990_erp_action_4(erp, sense);
- } else if (erp->function == dasd_3990_erp_action_1B_32) {
+ } else if (sense &&
+ erp->function == dasd_3990_erp_action_1B_32) {
erp = dasd_3990_update_1B(erp, sense);
- } else if (erp->function == dasd_3990_erp_int_req) {
+ } else if (sense && erp->function == dasd_3990_erp_int_req) {
erp = dasd_3990_erp_int_req(erp);
} else {
/* simple retry */
- DEV_MESSAGE(KERN_DEBUG, device,
+ DBF_DEV_EVENT(DBF_DEBUG, device,
"%i retries left for erp %p",
erp->retries, erp);
@@ -2609,24 +2656,24 @@ dasd_3990_erp_action(struct dasd_ccw_req * cqr)
if (device->features & DASD_FEATURE_ERPLOG) {
/* print current erp_chain */
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "ERP chain at BEGINNING of ERP-ACTION");
+ dev_err(&device->cdev->dev,
+ "ERP chain at BEGINNING of ERP-ACTION\n");
for (temp_erp = cqr;
temp_erp != NULL; temp_erp = temp_erp->refers) {
- DEV_MESSAGE(KERN_ERR, device,
- " erp %p (%02x) refers to %p",
+ dev_err(&device->cdev->dev,
+ "ERP %p (%02x) refers to %p\n",
temp_erp, temp_erp->status,
temp_erp->refers);
}
}
/* double-check if current erp/cqr was successful */
- if ((cqr->irb.scsw.cmd.cstat == 0x00) &&
- (cqr->irb.scsw.cmd.dstat ==
+ if ((scsw_cstat(&cqr->irb.scsw) == 0x00) &&
+ (scsw_dstat(&cqr->irb.scsw) ==
(DEV_STAT_CHN_END | DEV_STAT_DEV_END))) {
- DEV_MESSAGE(KERN_DEBUG, device,
+ DBF_DEV_EVENT(DBF_DEBUG, device,
"ERP called for successful request %p"
" - NO ERP necessary", cqr);
@@ -2648,13 +2695,13 @@ dasd_3990_erp_action(struct dasd_ccw_req * cqr)
if (device->features & DASD_FEATURE_ERPLOG) {
/* print current erp_chain */
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "ERP chain at END of ERP-ACTION");
+ dev_err(&device->cdev->dev,
+ "ERP chain at END of ERP-ACTION\n");
for (temp_erp = erp;
temp_erp != NULL; temp_erp = temp_erp->refers) {
- DEV_MESSAGE(KERN_ERR, device,
- " erp %p (%02x) refers to %p",
+ dev_err(&device->cdev->dev,
+ "ERP %p (%02x) refers to %p\n",
temp_erp, temp_erp->status,
temp_erp->refers);
}
@@ -2667,6 +2714,8 @@ dasd_3990_erp_action(struct dasd_ccw_req * cqr)
list_add_tail(&erp->blocklist, &cqr->blocklist);
}
+
+
return erp;
} /* end dasd_3990_erp_action */
diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index 20676cdef4a..5b7bbc87593 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -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 {
@@ -646,14 +648,16 @@ static int reset_summary_unit_check(struct alias_lcu *lcu,
{
struct dasd_ccw_req *cqr;
int rc = 0;
+ struct ccw1 *ccw;
cqr = lcu->rsu_cqr;
strncpy((char *) &cqr->magic, "ECKD", 4);
ASCEBC((char *) &cqr->magic, 4);
- cqr->cpaddr->cmd_code = DASD_ECKD_CCW_RSCK;
- cqr->cpaddr->flags = 0 ;
- cqr->cpaddr->count = 16;
- cqr->cpaddr->cda = (__u32)(addr_t) cqr->data;
+ ccw = cqr->cpaddr;
+ ccw->cmd_code = DASD_ECKD_CCW_RSCK;
+ ccw->flags = 0 ;
+ ccw->count = 16;
+ ccw->cda = (__u32)(addr_t) cqr->data;
((char *)cqr->data)[0] = reason;
clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags);
@@ -855,16 +859,25 @@ void dasd_alias_handle_summary_unit_check(struct dasd_device *device,
struct alias_lcu *lcu;
char reason;
struct dasd_eckd_private *private;
+ char *sense;
private = (struct dasd_eckd_private *) device->private;
- reason = irb->ecw[8];
- DEV_MESSAGE(KERN_WARNING, device, "%s %x",
- "eckd handle summary unit check: reason", reason);
+ sense = dasd_get_sense(irb);
+ if (sense) {
+ reason = sense[8];
+ DBF_DEV_EVENT(DBF_NOTICE, device, "%s %x",
+ "eckd handle summary unit check: reason", reason);
+ } else {
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
+ "eckd handle summary unit check:"
+ " no reason code available");
+ return;
+ }
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;
@@ -877,7 +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);
@@ -885,7 +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);
diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c
index 34339902efb..e77666c8e6c 100644
--- a/drivers/s390/block/dasd_devmap.c
+++ b/drivers/s390/block/dasd_devmap.c
@@ -13,6 +13,8 @@
*
*/
+#define KMSG_COMPONENT "dasd"
+
#include <linux/ctype.h>
#include <linux/init.h>
#include <linux/module.h>
@@ -67,6 +69,8 @@ int dasd_probeonly = 0; /* is true, when probeonly mode is active */
int dasd_autodetect = 0; /* is true, when autodetection is active */
int dasd_nopav = 0; /* is true, when PAV is disabled */
EXPORT_SYMBOL_GPL(dasd_nopav);
+int dasd_nofcx; /* disable High Performance Ficon */
+EXPORT_SYMBOL_GPL(dasd_nofcx);
/*
* char *dasd[] is intended to hold the ranges supplied by the dasd= statement
@@ -125,6 +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;
@@ -132,8 +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;
@@ -209,9 +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;
@@ -220,8 +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++;
@@ -253,25 +256,29 @@ 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;
+ pr_info("High Performance FICON support has been "
+ "deactivated\n");
+ return residual_str;
+ }
if (strncmp("fixedbuffers", parsestring, length) == 0) {
if (dasd_page_cache)
return residual_str;
@@ -280,10 +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;
}
@@ -321,7 +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);
@@ -340,8 +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);
}
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index ef2a5695205..b9a7f773344 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -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;
}
@@ -433,15 +433,15 @@ 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",
- (unsigned long) block->bp_block,
- (unsigned long) (block->blocks <<
- block->s2b_shift) >> 1);
+ 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);
}
out_label:
free_page((long) label);
@@ -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");
}
@@ -621,10 +621,8 @@ static int __init
dasd_diag_init(void)
{
if (!MACHINE_IS_VM) {
- MESSAGE_LOG(KERN_INFO,
- "Machine is not VM: %s "
- "discipline not initializing",
- dasd_diag_discipline.name);
+ pr_info("Discipline %s cannot be used without z/VM\n",
+ dasd_diag_discipline.name);
return -ENODEV;
}
ASCEBC(dasd_diag_discipline.ebcname, 4);
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index bdb87998f36..21254793c60 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -11,6 +11,8 @@
*
*/
+#define KMSG_COMPONENT "dasd"
+
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/slab.h>
@@ -27,9 +29,12 @@
#include <asm/uaccess.h>
#include <asm/cio.h>
#include <asm/ccwdev.h>
+#include <asm/itcw.h>
#include "dasd_int.h"
#include "dasd_eckd.h"
+#include "../cio/chsc.h"
+
#ifdef PRINTK_HEADER
#undef PRINTK_HEADER
@@ -84,7 +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;
@@ -159,6 +164,14 @@ recs_per_track(struct dasd_eckd_characteristics * rdc,
return 0;
}
+static void set_ch_t(struct ch_t *geo, __u32 cyl, __u8 head)
+{
+ geo->cyl = (__u16) cyl;
+ geo->head = cyl >> 16;
+ geo->head <<= 4;
+ geo->head |= head;
+}
+
static int
check_XRC (struct ccw1 *de_ccw,
struct DE_eckd_data *data,
@@ -186,11 +199,12 @@ check_XRC (struct ccw1 *de_ccw,
}
static int
-define_extent(struct ccw1 * ccw, struct DE_eckd_data * data, int trk,
- int totrk, int cmd, struct dasd_device * device)
+define_extent(struct ccw1 *ccw, struct DE_eckd_data *data, unsigned int trk,
+ unsigned int totrk, int cmd, struct dasd_device *device)
{
struct dasd_eckd_private *private;
- struct ch_t geo, beg, end;
+ u32 begcyl, endcyl;
+ u16 heads, beghead, endhead;
int rc = 0;
private = (struct dasd_eckd_private *) device->private;
@@ -236,7 +250,8 @@ define_extent(struct ccw1 * ccw, struct DE_eckd_data * data, int trk,
rc = check_XRC (ccw, data, device);
break;
default:
- DEV_MESSAGE(KERN_ERR, device, "unknown opcode 0x%x", cmd);
+ dev_err(&device->cdev->dev,
+ "0x%x is not a known command\n", cmd);
break;
}
@@ -248,27 +263,24 @@ define_extent(struct ccw1 * ccw, struct DE_eckd_data * data, int trk,
&& !(private->uses_cdl && trk < 2))
data->ga_extended |= 0x40; /* Regular Data Format Mode */
- geo.cyl = private->rdc_data.no_cyl;
- geo.head = private->rdc_data.trk_per_cyl;
- beg.cyl = trk / geo.head;
- beg.head = trk % geo.head;
- end.cyl = totrk / geo.head;
- end.head = totrk % geo.head;
+ heads = private->rdc_data.trk_per_cyl;
+ begcyl = trk / heads;
+ beghead = trk % heads;
+ endcyl = totrk / heads;
+ endhead = totrk % heads;
/* check for sequential prestage - enhance cylinder range */
if (data->attributes.operation == DASD_SEQ_PRESTAGE ||
data->attributes.operation == DASD_SEQ_ACCESS) {
- if (end.cyl + private->attrib.nr_cyl < geo.cyl)
- end.cyl += private->attrib.nr_cyl;
+ if (endcyl + private->attrib.nr_cyl < private->real_cyl)
+ endcyl += private->attrib.nr_cyl;
else
- end.cyl = (geo.cyl - 1);
+ endcyl = (private->real_cyl - 1);
}
- data->beg_ext.cyl = beg.cyl;
- data->beg_ext.head = beg.head;
- data->end_ext.cyl = end.cyl;
- data->end_ext.head = end.head;
+ set_ch_t(&data->beg_ext, begcyl, beghead);
+ set_ch_t(&data->end_ext, endcyl, endhead);
return rc;
}
@@ -283,29 +295,145 @@ static int check_XRC_on_prefix(struct PFX_eckd_data *pfxdata,
return 0;
/* switch on System Time Stamp - needed for XRC Support */
- pfxdata->define_extend.ga_extended |= 0x08; /* 'Time Stamp Valid' */
- pfxdata->define_extend.ga_extended |= 0x02; /* 'Extended Parameter' */
+ pfxdata->define_extent.ga_extended |= 0x08; /* 'Time Stamp Valid' */
+ pfxdata->define_extent.ga_extended |= 0x02; /* 'Extended Parameter' */
pfxdata->validity.time_stamp = 1; /* 'Time Stamp Valid' */
- rc = get_sync_clock(&pfxdata->define_extend.ep_sys_time);
+ rc = get_sync_clock(&pfxdata->define_extent.ep_sys_time);
/* Ignore return code if sync clock is switched off. */
if (rc == -ENOSYS || rc == -EACCES)
rc = 0;
return rc;
}
-static int prefix(struct ccw1 *ccw, struct PFX_eckd_data *pfxdata, int trk,
- int totrk, int cmd, struct dasd_device *basedev,
- struct dasd_device *startdev)
+static void fill_LRE_data(struct LRE_eckd_data *data, unsigned int trk,
+ unsigned int rec_on_trk, int count, int cmd,
+ struct dasd_device *device, unsigned int reclen,
+ unsigned int tlf)
+{
+ struct dasd_eckd_private *private;
+ int sector;
+ int dn, d;
+
+ private = (struct dasd_eckd_private *) device->private;
+
+ memset(data, 0, sizeof(*data));
+ sector = 0;
+ if (rec_on_trk) {
+ switch (private->rdc_data.dev_type) {
+ case 0x3390:
+ dn = ceil_quot(reclen + 6, 232);
+ d = 9 + ceil_quot(reclen + 6 * (dn + 1), 34);
+ sector = (49 + (rec_on_trk - 1) * (10 + d)) / 8;
+ break;
+ case 0x3380:
+ d = 7 + ceil_quot(reclen + 12, 32);
+ sector = (39 + (rec_on_trk - 1) * (8 + d)) / 7;
+ break;
+ }
+ }
+ data->sector = sector;
+ /* note: meaning of count depends on the operation
+ * for record based I/O it's the number of records, but for
+ * track based I/O it's the number of tracks
+ */
+ data->count = count;
+ switch (cmd) {
+ case DASD_ECKD_CCW_WRITE_HOME_ADDRESS:
+ data->operation.orientation = 0x3;
+ data->operation.operation = 0x03;
+ break;
+ case DASD_ECKD_CCW_READ_HOME_ADDRESS:
+ data->operation.orientation = 0x3;
+ data->operation.operation = 0x16;
+ break;
+ case DASD_ECKD_CCW_WRITE_RECORD_ZERO:
+ data->operation.orientation = 0x1;
+ data->operation.operation = 0x03;
+ data->count++;
+ break;
+ case DASD_ECKD_CCW_READ_RECORD_ZERO:
+ data->operation.orientation = 0x3;
+ data->operation.operation = 0x16;
+ data->count++;
+ break;
+ case DASD_ECKD_CCW_WRITE:
+ case DASD_ECKD_CCW_WRITE_MT:
+ case DASD_ECKD_CCW_WRITE_KD:
+ case DASD_ECKD_CCW_WRITE_KD_MT:
+ data->auxiliary.length_valid = 0x1;
+ data->length = reclen;
+ data->operation.operation = 0x01;
+ break;
+ case DASD_ECKD_CCW_WRITE_CKD:
+ case DASD_ECKD_CCW_WRITE_CKD_MT:
+ data->auxiliary.length_valid = 0x1;
+ data->length = reclen;
+ data->operation.operation = 0x03;
+ break;
+ case DASD_ECKD_CCW_WRITE_TRACK_DATA:
+ data->auxiliary.length_valid = 0x1;
+ data->length = reclen; /* not tlf, as one might think */
+ data->operation.operation = 0x3F;
+ data->extended_operation = 0x23;
+ break;
+ case DASD_ECKD_CCW_READ:
+ case DASD_ECKD_CCW_READ_MT:
+ case DASD_ECKD_CCW_READ_KD:
+ case DASD_ECKD_CCW_READ_KD_MT:
+ data->auxiliary.length_valid = 0x1;
+ data->length = reclen;
+ data->operation.operation = 0x06;
+ break;
+ case DASD_ECKD_CCW_READ_CKD:
+ case DASD_ECKD_CCW_READ_CKD_MT:
+ data->auxiliary.length_valid = 0x1;
+ data->length = reclen;
+ data->operation.operation = 0x16;
+ break;
+ case DASD_ECKD_CCW_READ_COUNT:
+ data->operation.operation = 0x06;
+ break;
+ case DASD_ECKD_CCW_READ_TRACK_DATA:
+ data->auxiliary.length_valid = 0x1;
+ data->length = tlf;
+ data->operation.operation = 0x0C;
+ break;
+ case DASD_ECKD_CCW_ERASE:
+ data->length = reclen;
+ data->auxiliary.length_valid = 0x1;
+ data->operation.operation = 0x0b;
+ break;
+ default:
+ DBF_DEV_EVENT(DBF_ERR, device,
+ "fill LRE unknown opcode 0x%x", cmd);
+ BUG();
+ }
+ set_ch_t(&data->seek_addr,
+ trk / private->rdc_data.trk_per_cyl,
+ trk % private->rdc_data.trk_per_cyl);
+ data->search_arg.cyl = data->seek_addr.cyl;
+ data->search_arg.head = data->seek_addr.head;
+ data->search_arg.record = rec_on_trk;
+}
+
+static int prefix_LRE(struct ccw1 *ccw, struct PFX_eckd_data *pfxdata,
+ unsigned int trk, unsigned int totrk, int cmd,
+ struct dasd_device *basedev, struct dasd_device *startdev,
+ unsigned char format, unsigned int rec_on_trk, int count,
+ unsigned int blksize, unsigned int tlf)
{
struct dasd_eckd_private *basepriv, *startpriv;
- struct DE_eckd_data *data;
- struct ch_t geo, beg, end;
+ struct DE_eckd_data *dedata;
+ struct LRE_eckd_data *lredata;
+ u32 begcyl, endcyl;
+ u16 heads, beghead, endhead;
int rc = 0;
basepriv = (struct dasd_eckd_private *) basedev->private;
startpriv = (struct dasd_eckd_private *) startdev->private;
- data = &pfxdata->define_extend;
+ dedata = &pfxdata->define_extent;
+ lredata = &pfxdata->locate_record;
ccw->cmd_code = DASD_ECKD_CCW_PFX;
ccw->flags = 0;
@@ -314,10 +442,16 @@ static int prefix(struct ccw1 *ccw, struct PFX_eckd_data *pfxdata, int trk,
memset(pfxdata, 0, sizeof(*pfxdata));
/* prefix data */
- pfxdata->format = 0;
+ if (format > 1) {
+ DBF_DEV_EVENT(DBF_ERR, basedev,
+ "PFX LRE unknown format 0x%x", format);
+ BUG();
+ return -EINVAL;
+ }
+ pfxdata->format = format;
pfxdata->base_address = basepriv->ned->unit_addr;
pfxdata->base_lss = basepriv->ned->ID;
- pfxdata->validity.define_extend = 1;
+ pfxdata->validity.define_extent = 1;
/* private uid is kept up to date, conf_data may be outdated */
if (startpriv->uid.type != UA_BASE_DEVICE) {
@@ -337,70 +471,94 @@ static int prefix(struct ccw1 *ccw, struct PFX_eckd_data *pfxdata, int trk,
case DASD_ECKD_CCW_READ_KD:
case DASD_ECKD_CCW_READ_KD_MT:
case DASD_ECKD_CCW_READ_COUNT:
- data->mask.perm = 0x1;
- data->attributes.operation = basepriv->attrib.operation;
+ dedata->mask.perm = 0x1;
+ dedata->attributes.operation = basepriv->attrib.operation;
+ break;
+ case DASD_ECKD_CCW_READ_TRACK_DATA:
+ dedata->mask.perm = 0x1;
+ dedata->attributes.operation = basepriv->attrib.operation;
+ dedata->blk_size = 0;
break;
case DASD_ECKD_CCW_WRITE:
case DASD_ECKD_CCW_WRITE_MT:
case DASD_ECKD_CCW_WRITE_KD:
case DASD_ECKD_CCW_WRITE_KD_MT:
- data->mask.perm = 0x02;
- data->attributes.operation = basepriv->attrib.operation;
+ dedata->mask.perm = 0x02;
+ dedata->attributes.operation = basepriv->attrib.operation;
rc = check_XRC_on_prefix(pfxdata, basedev);
break;
case DASD_ECKD_CCW_WRITE_CKD:
case DASD_ECKD_CCW_WRITE_CKD_MT:
- data->attributes.operation = DASD_BYPASS_CACHE;
+ dedata->attributes.operation = DASD_BYPASS_CACHE;
rc = check_XRC_on_prefix(pfxdata, basedev);
break;
case DASD_ECKD_CCW_ERASE:
case DASD_ECKD_CCW_WRITE_HOME_ADDRESS:
case DASD_ECKD_CCW_WRITE_RECORD_ZERO:
- data->mask.perm = 0x3;
- data->mask.auth = 0x1;
- data->attributes.operation = DASD_BYPASS_CACHE;
+ dedata->mask.perm = 0x3;
+ dedata->mask.auth = 0x1;
+ dedata->attributes.operation = DASD_BYPASS_CACHE;
rc = check_XRC_on_prefix(pfxdata, basedev);
break;
- default:
- DEV_MESSAGE(KERN_ERR, basedev, "unknown opcode 0x%x", cmd);
+ case DASD_ECKD_CCW_WRITE_TRACK_DATA:
+ dedata->mask.perm = 0x02;
+ dedata->attributes.operation = basepriv->attrib.operation;
+ dedata->blk_size = blksize;
+ rc = check_XRC_on_prefix(pfxdata, basedev);
break;
+ default:
+ DBF_DEV_EVENT(DBF_ERR, basedev,
+ "PFX LRE unknown opcode 0x%x", cmd);
+ BUG();
+ return -EINVAL;
}
- data->attributes.mode = 0x3; /* ECKD */
+ dedata->attributes.mode = 0x3; /* ECKD */
if ((basepriv->rdc_data.cu_type == 0x2105 ||
basepriv->rdc_data.cu_type == 0x2107 ||
basepriv->rdc_data.cu_type == 0x1750)
&& !(basepriv->uses_cdl && trk < 2))
- data->ga_extended |= 0x40; /* Regular Data Format Mode */
+ dedata->ga_extended |= 0x40; /* Regular Data Format Mode */
- geo.cyl = basepriv->rdc_data.no_cyl;
- geo.head = basepriv->rdc_data.trk_per_cyl;
- beg.cyl = trk / geo.head;
- beg.head = trk % geo.head;
- end.cyl = totrk / geo.head;
- end.head = totrk % geo.head;
+ heads = basepriv->rdc_data.trk_per_cyl;
+ begcyl = trk / heads;
+ beghead = trk % heads;
+ endcyl = totrk / heads;
+ endhead = totrk % heads;
/* check for sequential prestage - enhance cylinder range */
- if (data->attributes.operation == DASD_SEQ_PRESTAGE ||
- data->attributes.operation == DASD_SEQ_ACCESS) {
+ if (dedata->attributes.operation == DASD_SEQ_PRESTAGE ||
+ dedata->attributes.operation == DASD_SEQ_ACCESS) {
- if (end.cyl + basepriv->attrib.nr_cyl < geo.cyl)
- end.cyl += basepriv->attrib.nr_cyl;
+ if (endcyl + basepriv->attrib.nr_cyl < basepriv->real_cyl)
+ endcyl += basepriv->attrib.nr_cyl;
else
- end.cyl = (geo.cyl - 1);
+ endcyl = (basepriv->real_cyl - 1);
+ }
+
+ set_ch_t(&dedata->beg_ext, begcyl, beghead);
+ set_ch_t(&dedata->end_ext, endcyl, endhead);
+
+ if (format == 1) {
+ fill_LRE_data(lredata, trk, rec_on_trk, count, cmd,
+ basedev, blksize, tlf);
}
- data->beg_ext.cyl = beg.cyl;
- data->beg_ext.head = beg.head;
- data->end_ext.cyl = end.cyl;
- data->end_ext.head = end.head;
return rc;
}
+static int prefix(struct ccw1 *ccw, struct PFX_eckd_data *pfxdata,
+ unsigned int trk, unsigned int totrk, int cmd,
+ struct dasd_device *basedev, struct dasd_device *startdev)
+{
+ return prefix_LRE(ccw, pfxdata, trk, totrk, cmd, basedev, startdev,
+ 0, 0, 0, 0, 0);
+}
+
static void
-locate_record(struct ccw1 *ccw, struct LO_eckd_data *data, int trk,
- int rec_on_trk, int no_rec, int cmd,
+locate_record(struct ccw1 *ccw, struct LO_eckd_data *data, unsigned int trk,
+ unsigned int rec_on_trk, int no_rec, int cmd,
struct dasd_device * device, int reclen)
{
struct dasd_eckd_private *private;
@@ -491,12 +649,14 @@ locate_record(struct ccw1 *ccw, struct LO_eckd_data *data, int trk,
data->operation.operation = 0x0b;
break;
default:
- DEV_MESSAGE(KERN_ERR, device, "unknown opcode 0x%x", cmd);
- }
- data->seek_addr.cyl = data->search_arg.cyl =
- trk / private->rdc_data.trk_per_cyl;
- data->seek_addr.head = data->search_arg.head =
- trk % private->rdc_data.trk_per_cyl;
+ 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,
+ trk % private->rdc_data.trk_per_cyl);
+ data->search_arg.cyl = data->seek_addr.cyl;
+ data->search_arg.head = data->seek_addr.head;
data->search_arg.record = rec_on_trk;
}
@@ -585,8 +745,8 @@ 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",
- "Could not allocate RCD request");
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
+ "Could not allocate RCD request");
return cqr;
}
@@ -736,14 +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,
- "Read configuration data returned "
- "error %d", rc);
+ DBF_EVENT(DBF_WARNING,
+ "Read configuration data returned "
+ "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 */
@@ -790,8 +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;
@@ -840,7 +1003,8 @@ static int dasd_eckd_read_features(struct dasd_device *device)
/*
* Build CP for Perform Subsystem Function - SSC.
*/
-static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device)
+static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device,
+ int enable_pav)
{
struct dasd_ccw_req *cqr;
struct dasd_psf_ssc_data *psf_ssc_data;
@@ -851,15 +1015,17 @@ 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;
}
psf_ssc_data = (struct dasd_psf_ssc_data *)cqr->data;
psf_ssc_data->order = PSF_ORDER_SSC;
- psf_ssc_data->suborder = 0x88;
- psf_ssc_data->reserved[0] = 0x88;
-
+ psf_ssc_data->suborder = 0x40;
+ if (enable_pav) {
+ psf_ssc_data->suborder |= 0x88;
+ psf_ssc_data->reserved[0] = 0x88;
+ }
ccw = cqr->cpaddr;
ccw->cmd_code = DASD_ECKD_CCW_PSF;
ccw->cda = (__u32)(addr_t)psf_ssc_data;
@@ -880,12 +1046,12 @@ static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device)
* call might change behaviour of DASD devices.
*/
static int
-dasd_eckd_psf_ssc(struct dasd_device *device)
+dasd_eckd_psf_ssc(struct dasd_device *device, int enable_pav)
{
struct dasd_ccw_req *cqr;
int rc;
- cqr = dasd_eckd_build_psf_ssc(device);
+ cqr = dasd_eckd_build_psf_ssc(device, enable_pav);
if (IS_ERR(cqr))
return PTR_ERR(cqr);
@@ -904,19 +1070,20 @@ static int dasd_eckd_validate_server(struct dasd_device *device)
{
int rc;
struct dasd_eckd_private *private;
+ int enable_pav;
- /* Currently PAV is the only reason to 'validate' server on LPAR */
if (dasd_nopav || MACHINE_IS_VM)
- return 0;
-
- rc = dasd_eckd_psf_ssc(device);
+ enable_pav = 0;
+ else
+ enable_pav = 1;
+ rc = dasd_eckd_psf_ssc(device, enable_pav);
/* 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",
- private->uid.vendor, private->uid.serial,
- private->uid.ssid, rc);
+ 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, dev_name(&device->cdev->dev));
/* RE-Read Configuration Data */
return dasd_eckd_read_conf(device);
}
@@ -938,9 +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;
@@ -965,8 +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;
}
@@ -997,20 +1165,27 @@ 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;
}
- DEV_MESSAGE(KERN_INFO, device,
- "%04X/%02X(CU:%04X/%02X) Cyl:%d Head:%d Sec:%d",
- private->rdc_data.dev_type,
- private->rdc_data.dev_model,
- private->rdc_data.cu_type,
- private->rdc_data.cu_model.model,
- private->rdc_data.no_cyl,
- private->rdc_data.trk_per_cyl,
- private->rdc_data.sec_per_trk);
+ /* find the vaild cylinder size */
+ if (private->rdc_data.no_cyl == LV_COMPAT_CYL &&
+ private->rdc_data.long_no_cyl)
+ private->real_cyl = private->rdc_data.long_no_cyl;
+ else
+ private->real_cyl = private->rdc_data.no_cyl;
+
+ 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,
+ private->rdc_data.cu_model.model,
+ private->real_cyl,
+ private->rdc_data.trk_per_cyl,
+ private->rdc_data.sec_per_trk);
return 0;
out_err3:
@@ -1151,14 +1326,12 @@ 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;
}
private->uses_cdl = 1;
- /* Calculate number of blocks/records per track. */
- blk_per_trk = recs_per_track(&private->rdc_data, 0, block->bp_block);
/* Check Track 0 for Compatible Disk Layout */
count_area = NULL;
for (i = 0; i < 3; i++) {
@@ -1182,8 +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 */
@@ -1191,8 +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 */
@@ -1200,19 +1373,19 @@ dasd_eckd_end_analysis(struct dasd_block *block)
block->s2b_shift++;
blk_per_trk = recs_per_track(&private->rdc_data, 0, block->bp_block);
- block->blocks = (private->rdc_data.no_cyl *
+ block->blocks = (private->real_cyl *
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),
- ((private->rdc_data.no_cyl *
- private->rdc_data.trk_per_cyl *
- blk_per_trk * (block->bp_block >> 9)) >> 1),
- ((blk_per_trk * block->bp_block) >> 10),
- private->uses_cdl ?
- "compatible disk layout" : "linux disk layout");
+ 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),
+ ((blk_per_trk * block->bp_block) >> 10),
+ private->uses_cdl ?
+ "compatible disk layout" : "linux disk layout");
return 0;
}
@@ -1262,31 +1435,35 @@ dasd_eckd_format_device(struct dasd_device * device,
struct eckd_count *ect;
struct ccw1 *ccw;
void *data;
- int rpt, cyl, head;
+ int rpt;
+ struct ch_t address;
int cplength, datasize;
int i;
+ int intensity = 0;
+ int r0_perm;
private = (struct dasd_eckd_private *) device->private;
rpt = recs_per_track(&private->rdc_data, 0, fdata->blksize);
- cyl = fdata->start_unit / private->rdc_data.trk_per_cyl;
- head = fdata->start_unit % private->rdc_data.trk_per_cyl;
+ set_ch_t(&address,
+ fdata->start_unit / private->rdc_data.trk_per_cyl,
+ fdata->start_unit % private->rdc_data.trk_per_cyl);
/* Sanity checks. */
if (fdata->start_unit >=
- (private->rdc_data.no_cyl * private->rdc_data.trk_per_cyl)) {
- DEV_MESSAGE(KERN_INFO, device, "Track no %d too big!",
- fdata->start_unit);
+ (private->real_cyl * private->rdc_data.trk_per_cyl)) {
+ 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 %d 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 %d...terminating!",
- fdata->blksize);
+ dev_warn(&device->cdev->dev,
+ "The DASD cannot be formatted with block size %d\n",
+ fdata->blksize);
return ERR_PTR(-EINVAL);
}
@@ -1296,9 +1473,17 @@ dasd_eckd_format_device(struct dasd_device * device,
* Bit 1: write home address, currently not supported
* Bit 2: invalidate tracks
* Bit 3: use OS/390 compatible disk layout (cdl)
+ * Bit 4: do not allow storage subsystem to modify record zero
* Only some bit combinations do make sense.
*/
- switch (fdata->intensity) {
+ if (fdata->intensity & 0x10) {
+ r0_perm = 0;
+ intensity = fdata->intensity & ~0x10;
+ } else {
+ r0_perm = 1;
+ intensity = fdata->intensity;
+ }
+ switch (intensity) {
case 0x00: /* Normal format */
case 0x08: /* Normal format, use cdl. */
cplength = 2 + rpt;
@@ -1322,8 +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. */
@@ -1335,11 +1520,14 @@ dasd_eckd_format_device(struct dasd_device * device,
data = fcp->data;
ccw = fcp->cpaddr;
- switch (fdata->intensity & ~0x08) {
+ switch (intensity & ~0x08) {
case 0x00: /* Normal format. */
define_extent(ccw++, (struct DE_eckd_data *) data,
fdata->start_unit, fdata->start_unit,
DASD_ECKD_CCW_WRITE_CKD, device);
+ /* grant subsystem permission to format R0 */
+ if (r0_perm)
+ ((struct DE_eckd_data *)data)->ga_extended |= 0x04;
data += sizeof(struct DE_eckd_data);
ccw[-1].flags |= CCW_FLAG_CC;
locate_record(ccw++, (struct LO_eckd_data *) data,
@@ -1373,11 +1561,11 @@ dasd_eckd_format_device(struct dasd_device * device,
data += sizeof(struct LO_eckd_data);
break;
}
- if (fdata->intensity & 0x01) { /* write record zero */
+ if (intensity & 0x01) { /* write record zero */
ect = (struct eckd_count *) data;
data += sizeof(struct eckd_count);
- ect->cyl = cyl;
- ect->head = head;
+ ect->cyl = address.cyl;
+ ect->head = address.head;
ect->record = 0;
ect->kl = 0;
ect->dl = 8;
@@ -1388,11 +1576,11 @@ dasd_eckd_format_device(struct dasd_device * device,
ccw->cda = (__u32)(addr_t) ect;
ccw++;
}
- if ((fdata->intensity & ~0x08) & 0x04) { /* erase track */
+ if ((intensity & ~0x08) & 0x04) { /* erase track */
ect = (struct eckd_count *) data;
data += sizeof(struct eckd_count);
- ect->cyl = cyl;
- ect->head = head;
+ ect->cyl = address.cyl;
+ ect->head = address.head;
ect->record = 1;
ect->kl = 0;
ect->dl = 0;
@@ -1405,20 +1593,20 @@ dasd_eckd_format_device(struct dasd_device * device,
for (i = 0; i < rpt; i++) {
ect = (struct eckd_count *) data;
data += sizeof(struct eckd_count);
- ect->cyl = cyl;
- ect->head = head;
+ ect->cyl = address.cyl;
+ ect->head = address.head;
ect->record = i + 1;
ect->kl = 0;
ect->dl = fdata->blksize;
/* Check for special tracks 0-1 when formatting CDL */
- if ((fdata->intensity & 0x08) &&
+ if ((intensity & 0x08) &&
fdata->start_unit == 0) {
if (i < 3) {
ect->kl = 4;
ect->dl = sizes_trk0[i] - 4;
}
}
- if ((fdata->intensity & 0x08) &&
+ if ((intensity & 0x08) &&
fdata->start_unit == 1) {
ect->kl = 44;
ect->dl = LABEL_SIZE - 44;
@@ -1479,57 +1667,69 @@ static void dasd_eckd_handle_unsolicited_interrupt(struct dasd_device *device,
struct irb *irb)
{
char mask;
+ char *sense = NULL;
/* first of all check for state change pending interrupt */
mask = DEV_STAT_ATTENTION | DEV_STAT_DEV_END | DEV_STAT_UNIT_EXCEP;
- if ((irb->scsw.cmd.dstat & mask) == mask) {
+ if ((scsw_dstat(&irb->scsw) & mask) == mask) {
dasd_generic_handle_state_change(device);
return;
}
/* summary unit check */
- if ((irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) &&
+ if ((scsw_dstat(&irb->scsw) & DEV_STAT_UNIT_CHECK) &&
(irb->ecw[7] == 0x0D)) {
dasd_alias_handle_summary_unit_check(device, irb);
return;
}
-
+ sense = dasd_get_sense(irb);
/* service information message SIM */
- if (irb->esw.esw0.erw.cons && !(irb->ecw[27] & DASD_SENSE_BIT_0) &&
- ((irb->ecw[6] & DASD_SIM_SENSE) == DASD_SIM_SENSE)) {
- dasd_3990_erp_handle_sim(device, irb->ecw);
+ if (sense && !(sense[27] & DASD_SENSE_BIT_0) &&
+ ((sense[6] & DASD_SIM_SENSE) == DASD_SIM_SENSE)) {
+ dasd_3990_erp_handle_sim(device, sense);
dasd_schedule_device_bh(device);
return;
}
- if ((irb->scsw.cmd.cc == 1) &&
- (irb->scsw.cmd.fctl & SCSW_FCTL_START_FUNC) &&
- (irb->scsw.cmd.actl & SCSW_ACTL_START_PEND) &&
- (irb->scsw.cmd.stctl & SCSW_STCTL_STATUS_PEND)) {
+ if ((scsw_cc(&irb->scsw) == 1) &&
+ (scsw_fctl(&irb->scsw) & SCSW_FCTL_START_FUNC) &&
+ (scsw_actl(&irb->scsw) & SCSW_ACTL_START_PEND) &&
+ (scsw_stctl(&irb->scsw) & SCSW_STCTL_STATUS_PEND)) {
/* fake irb do nothing, they are handled elsewhere */
dasd_schedule_device_bh(device);
return;
}
- if (!(irb->esw.esw0.erw.cons)) {
+ 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);
return;
};
-static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev,
+
+static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_single(
+ struct dasd_device *startdev,
struct dasd_block *block,
- struct request *req)
+ struct request *req,
+ sector_t first_rec,
+ sector_t last_rec,
+ sector_t first_trk,
+ sector_t last_trk,
+ unsigned int first_offs,
+ unsigned int last_offs,
+ unsigned int blk_per_trk,
+ unsigned int blksize)
{
struct dasd_eckd_private *private;
unsigned long *idaws;
@@ -1539,11 +1739,9 @@ static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev,
struct req_iterator iter;
struct bio_vec *bv;
char *dst;
- unsigned int blksize, blk_per_trk, off;
+ unsigned int off;
int count, cidaw, cplength, datasize;
- sector_t recid, first_rec, last_rec;
- sector_t first_trk, last_trk;
- unsigned int first_offs, last_offs;
+ sector_t recid;
unsigned char cmd, rcmd;
int use_prefix;
struct dasd_device *basedev;
@@ -1556,15 +1754,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev,
cmd = DASD_ECKD_CCW_WRITE_MT;
else
return ERR_PTR(-EINVAL);
- /* Calculate number of blocks/records per track. */
- blksize = block->bp_block;
- blk_per_trk = recs_per_track(&private->rdc_data, 0, blksize);
- /* Calculate record id of first and last block. */
- first_rec = first_trk = req->sector >> block->s2b_shift;
- first_offs = sector_div(first_trk, blk_per_trk);
- last_rec = last_trk =
- (req->sector + req->nr_sectors - 1) >> block->s2b_shift;
- last_offs = sector_div(last_trk, blk_per_trk);
+
/* Check struct bio and count the number of blocks for the request. */
count = 0;
cidaw = 0;
@@ -1714,6 +1904,497 @@ static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev,
return cqr;
}
+static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_track(
+ struct dasd_device *startdev,
+ struct dasd_block *block,
+ struct request *req,
+ sector_t first_rec,
+ sector_t last_rec,
+ sector_t first_trk,
+ sector_t last_trk,
+ unsigned int first_offs,
+ unsigned int last_offs,
+ unsigned int blk_per_trk,
+ unsigned int blksize)
+{
+ struct dasd_eckd_private *private;
+ unsigned long *idaws;
+ struct dasd_ccw_req *cqr;
+ struct ccw1 *ccw;
+ struct req_iterator iter;
+ struct bio_vec *bv;
+ char *dst, *idaw_dst;
+ unsigned int cidaw, cplength, datasize;
+ unsigned int tlf;
+ sector_t recid;
+ unsigned char cmd;
+ struct dasd_device *basedev;
+ unsigned int trkcount, count, count_to_trk_end;
+ unsigned int idaw_len, seg_len, part_len, len_to_track_end;
+ unsigned char new_track, end_idaw;
+ sector_t trkid;
+ unsigned int recoffs;
+
+ basedev = block->base;
+ private = (struct dasd_eckd_private *) basedev->private;
+ if (rq_data_dir(req) == READ)
+ cmd = DASD_ECKD_CCW_READ_TRACK_DATA;
+ else if (rq_data_dir(req) == WRITE)
+ cmd = DASD_ECKD_CCW_WRITE_TRACK_DATA;
+ else
+ return ERR_PTR(-EINVAL);
+
+ /* Track based I/O needs IDAWs for each page, and not just for
+ * 64 bit addresses. We need additional idals for pages
+ * that get filled from two tracks, so we use the number
+ * of records as upper limit.
+ */
+ cidaw = last_rec - first_rec + 1;
+ trkcount = last_trk - first_trk + 1;
+
+ /* 1x prefix + one read/write ccw per track */
+ cplength = 1 + trkcount;
+
+ /* on 31-bit we need space for two 32 bit addresses per page
+ * on 64-bit one 64 bit address
+ */
+ datasize = sizeof(struct PFX_eckd_data) +
+ cidaw * sizeof(unsigned long long);
+
+ /* Allocate the ccw request. */
+ cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
+ cplength, datasize, startdev);
+ if (IS_ERR(cqr))
+ return cqr;
+ ccw = cqr->cpaddr;
+ /* transfer length factor: how many bytes to read from the last track */
+ if (first_trk == last_trk)
+ tlf = last_offs - first_offs + 1;
+ else
+ tlf = last_offs + 1;
+ tlf *= blksize;
+
+ if (prefix_LRE(ccw++, cqr->data, first_trk,
+ last_trk, cmd, basedev, startdev,
+ 1 /* format */, first_offs + 1,
+ trkcount, blksize,
+ tlf) == -EAGAIN) {
+ /* Clock not in sync and XRC is enabled.
+ * Try again later.
+ */
+ dasd_sfree_request(cqr, startdev);
+ return ERR_PTR(-EAGAIN);
+ }
+
+ /*
+ * The translation of request into ccw programs must meet the
+ * following conditions:
+ * - all idaws but the first and the last must address full pages
+ * (or 2K blocks on 31-bit)
+ * - the scope of a ccw and it's idal ends with the track boundaries
+ */
+ idaws = (unsigned long *) (cqr->data + sizeof(struct PFX_eckd_data));
+ recid = first_rec;
+ new_track = 1;
+ end_idaw = 0;
+ len_to_track_end = 0;
+ idaw_dst = 0;
+ idaw_len = 0;
+ rq_for_each_segment(bv, req, iter) {
+ dst = page_address(bv->bv_page) + bv->bv_offset;
+ seg_len = bv->bv_len;
+ while (seg_len) {
+ if (new_track) {
+ trkid = recid;
+ recoffs = sector_div(trkid, blk_per_trk);
+ count_to_trk_end = blk_per_trk - recoffs;
+ count = min((last_rec - recid + 1),
+ (sector_t)count_to_trk_end);
+ len_to_track_end = count * blksize;
+ ccw[-1].flags |= CCW_FLAG_CC;
+ ccw->cmd_code = cmd;
+ ccw->count = len_to_track_end;
+ ccw->cda = (__u32)(addr_t)idaws;
+ ccw->flags = CCW_FLAG_IDA;
+ ccw++;
+ recid += count;
+ new_track = 0;
+ }
+ /* If we start a new idaw, everything is fine and the
+ * start of the new idaw is the start of this segment.
+ * If we continue an idaw, we must make sure that the
+ * current segment begins where the so far accumulated
+ * idaw ends
+ */
+ if (!idaw_dst)
+ idaw_dst = dst;
+ if ((idaw_dst + idaw_len) != dst) {
+ dasd_sfree_request(cqr, startdev);
+ return ERR_PTR(-ERANGE);
+ }
+ part_len = min(seg_len, len_to_track_end);
+ seg_len -= part_len;
+ dst += part_len;
+ idaw_len += part_len;
+ len_to_track_end -= part_len;
+ /* collected memory area ends on an IDA_BLOCK border,
+ * -> create an idaw
+ * idal_create_words will handle cases where idaw_len
+ * is larger then IDA_BLOCK_SIZE
+ */
+ if (!(__pa(idaw_dst + idaw_len) & (IDA_BLOCK_SIZE-1)))
+ end_idaw = 1;
+ /* We also need to end the idaw at track end */
+ if (!len_to_track_end) {
+ new_track = 1;
+ end_idaw = 1;
+ }
+ if (end_idaw) {
+ idaws = idal_create_words(idaws, idaw_dst,
+ idaw_len);
+ idaw_dst = 0;
+ idaw_len = 0;
+ end_idaw = 0;
+ }
+ }
+ }
+
+ if (blk_noretry_request(req) ||
+ block->base->features & DASD_FEATURE_FAILFAST)
+ set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
+ cqr->startdev = startdev;
+ cqr->memdev = startdev;
+ cqr->block = block;
+ cqr->expires = 5 * 60 * HZ; /* 5 minutes */
+ cqr->lpm = private->path_data.ppm;
+ cqr->retries = 256;
+ cqr->buildclk = get_clock();
+ cqr->status = DASD_CQR_FILLED;
+ return cqr;
+}
+
+static int prepare_itcw(struct itcw *itcw,
+ unsigned int trk, unsigned int totrk, int cmd,
+ struct dasd_device *basedev,
+ struct dasd_device *startdev,
+ unsigned int rec_on_trk, int count,
+ unsigned int blksize,
+ unsigned int total_data_size,
+ unsigned int tlf,
+ unsigned int blk_per_trk)
+{
+ struct PFX_eckd_data pfxdata;
+ struct dasd_eckd_private *basepriv, *startpriv;
+ struct DE_eckd_data *dedata;
+ struct LRE_eckd_data *lredata;
+ struct dcw *dcw;
+
+ u32 begcyl, endcyl;
+ u16 heads, beghead, endhead;
+ u8 pfx_cmd;
+
+ int rc = 0;
+ int sector = 0;
+ int dn, d;
+
+
+ /* setup prefix data */
+ basepriv = (struct dasd_eckd_private *) basedev->private;
+ startpriv = (struct dasd_eckd_private *) startdev->private;
+ dedata = &pfxdata.define_extent;
+ lredata = &pfxdata.locate_record;
+
+ memset(&pfxdata, 0, sizeof(pfxdata));
+ pfxdata.format = 1; /* PFX with LRE */
+ pfxdata.base_address = basepriv->ned->unit_addr;
+ pfxdata.base_lss = basepriv->ned->ID;
+ pfxdata.validity.define_extent = 1;
+
+ /* private uid is kept up to date, conf_data may be outdated */
+ if (startpriv->uid.type != UA_BASE_DEVICE) {
+ pfxdata.validity.verify_base = 1;
+ if (startpriv->uid.type == UA_HYPER_PAV_ALIAS)
+ pfxdata.validity.hyper_pav = 1;
+ }
+
+ switch (cmd) {
+ case DASD_ECKD_CCW_READ_TRACK_DATA:
+ dedata->mask.perm = 0x1;
+ dedata->attributes.operation = basepriv->attrib.operation;
+ dedata->blk_size = blksize;
+ dedata->ga_extended |= 0x42;
+ lredata->operation.orientation = 0x0;
+ lredata->operation.operation = 0x0C;
+ lredata->auxiliary.check_bytes = 0x01;
+ pfx_cmd = DASD_ECKD_CCW_PFX_READ;
+ break;
+ case DASD_ECKD_CCW_WRITE_TRACK_DATA:
+ dedata->mask.perm = 0x02;
+ dedata->attributes.operation = basepriv->attrib.operation;
+ dedata->blk_size = blksize;
+ rc = check_XRC_on_prefix(&pfxdata, basedev);
+ dedata->ga_extended |= 0x42;
+ lredata->operation.orientation = 0x0;
+ lredata->operation.operation = 0x3F;
+ lredata->extended_operation = 0x23;
+ lredata->auxiliary.check_bytes = 0x2;
+ pfx_cmd = DASD_ECKD_CCW_PFX;
+ break;
+ default:
+ DBF_DEV_EVENT(DBF_ERR, basedev,
+ "prepare itcw, unknown opcode 0x%x", cmd);
+ BUG();
+ break;
+ }
+ if (rc)
+ return rc;
+
+ dedata->attributes.mode = 0x3; /* ECKD */
+
+ heads = basepriv->rdc_data.trk_per_cyl;
+ begcyl = trk / heads;
+ beghead = trk % heads;
+ endcyl = totrk / heads;
+ endhead = totrk % heads;
+
+ /* check for sequential prestage - enhance cylinder range */
+ if (dedata->attributes.operation == DASD_SEQ_PRESTAGE ||
+ dedata->attributes.operation == DASD_SEQ_ACCESS) {
+
+ if (endcyl + basepriv->attrib.nr_cyl < basepriv->real_cyl)
+ endcyl += basepriv->attrib.nr_cyl;
+ else
+ endcyl = (basepriv->real_cyl - 1);
+ }
+
+ set_ch_t(&dedata->beg_ext, begcyl, beghead);
+ set_ch_t(&dedata->end_ext, endcyl, endhead);
+
+ dedata->ep_format = 0x20; /* records per track is valid */
+ dedata->ep_rec_per_track = blk_per_trk;
+
+ if (rec_on_trk) {
+ switch (basepriv->rdc_data.dev_type) {
+ case 0x3390:
+ dn = ceil_quot(blksize + 6, 232);
+ d = 9 + ceil_quot(blksize + 6 * (dn + 1), 34);
+ sector = (49 + (rec_on_trk - 1) * (10 + d)) / 8;
+ break;
+ case 0x3380:
+ d = 7 + ceil_quot(blksize + 12, 32);
+ sector = (39 + (rec_on_trk - 1) * (8 + d)) / 7;
+ break;
+ }
+ }
+
+ lredata->auxiliary.length_valid = 1;
+ lredata->auxiliary.length_scope = 1;
+ lredata->auxiliary.imbedded_ccw_valid = 1;
+ lredata->length = tlf;
+ lredata->imbedded_ccw = cmd;
+ lredata->count = count;
+ lredata->sector = sector;
+ set_ch_t(&lredata->seek_addr, begcyl, beghead);
+ lredata->search_arg.cyl = lredata->seek_addr.cyl;
+ lredata->search_arg.head = lredata->seek_addr.head;
+ lredata->search_arg.record = rec_on_trk;
+
+ dcw = itcw_add_dcw(itcw, pfx_cmd, 0,
+ &pfxdata, sizeof(pfxdata), total_data_size);
+
+ return rc;
+}
+
+static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
+ struct dasd_device *startdev,
+ struct dasd_block *block,
+ struct request *req,
+ sector_t first_rec,
+ sector_t last_rec,
+ sector_t first_trk,
+ sector_t last_trk,
+ unsigned int first_offs,
+ unsigned int last_offs,
+ unsigned int blk_per_trk,
+ unsigned int blksize)
+{
+ struct dasd_eckd_private *private;
+ struct dasd_ccw_req *cqr;
+ struct req_iterator iter;
+ struct bio_vec *bv;
+ char *dst;
+ unsigned int trkcount, ctidaw;
+ unsigned char cmd;
+ struct dasd_device *basedev;
+ unsigned int tlf;
+ struct itcw *itcw;
+ struct tidaw *last_tidaw = NULL;
+ int itcw_op;
+ size_t itcw_size;
+
+ basedev = block->base;
+ private = (struct dasd_eckd_private *) basedev->private;
+ if (rq_data_dir(req) == READ) {
+ cmd = DASD_ECKD_CCW_READ_TRACK_DATA;
+ itcw_op = ITCW_OP_READ;
+ } else if (rq_data_dir(req) == WRITE) {
+ cmd = DASD_ECKD_CCW_WRITE_TRACK_DATA;
+ itcw_op = ITCW_OP_WRITE;
+ } else
+ return ERR_PTR(-EINVAL);
+
+ /* trackbased I/O needs address all memory via TIDAWs,
+ * not just for 64 bit addresses. This allows us to map
+ * each segment directly to one tidaw.
+ */
+ trkcount = last_trk - first_trk + 1;
+ ctidaw = 0;
+ rq_for_each_segment(bv, req, iter) {
+ ++ctidaw;
+ }
+
+ /* Allocate the ccw request. */
+ itcw_size = itcw_calc_size(0, ctidaw, 0);
+ cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
+ 0, itcw_size, startdev);
+ if (IS_ERR(cqr))
+ return cqr;
+
+ cqr->cpmode = 1;
+ cqr->startdev = startdev;
+ cqr->memdev = startdev;
+ cqr->block = block;
+ cqr->expires = 100*HZ;
+ cqr->buildclk = get_clock();
+ cqr->status = DASD_CQR_FILLED;
+ cqr->retries = 10;
+
+ /* transfer length factor: how many bytes to read from the last track */
+ if (first_trk == last_trk)
+ tlf = last_offs - first_offs + 1;
+ else
+ tlf = last_offs + 1;
+ tlf *= blksize;
+
+ itcw = itcw_init(cqr->data, itcw_size, itcw_op, 0, ctidaw, 0);
+ cqr->cpaddr = itcw_get_tcw(itcw);
+
+ if (prepare_itcw(itcw, first_trk, last_trk,
+ cmd, basedev, startdev,
+ first_offs + 1,
+ trkcount, blksize,
+ (last_rec - first_rec + 1) * blksize,
+ tlf, blk_per_trk) == -EAGAIN) {
+ /* Clock not in sync and XRC is enabled.
+ * Try again later.
+ */
+ dasd_sfree_request(cqr, startdev);
+ return ERR_PTR(-EAGAIN);
+ }
+
+ /*
+ * A tidaw can address 4k of memory, but must not cross page boundaries
+ * We can let the block layer handle this by setting
+ * blk_queue_segment_boundary to page boundaries and
+ * blk_max_segment_size to page size when setting up the request queue.
+ */
+ rq_for_each_segment(bv, req, iter) {
+ dst = page_address(bv->bv_page) + bv->bv_offset;
+ last_tidaw = itcw_add_tidaw(itcw, 0x00, dst, bv->bv_len);
+ if (IS_ERR(last_tidaw))
+ return (struct dasd_ccw_req *)last_tidaw;
+ }
+
+ last_tidaw->flags |= 0x80;
+ itcw_finalize(itcw);
+
+ if (blk_noretry_request(req) ||
+ block->base->features & DASD_FEATURE_FAILFAST)
+ set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
+ cqr->startdev = startdev;
+ cqr->memdev = startdev;
+ cqr->block = block;
+ cqr->expires = 5 * 60 * HZ; /* 5 minutes */
+ cqr->lpm = private->path_data.ppm;
+ cqr->retries = 256;
+ cqr->buildclk = get_clock();
+ cqr->status = DASD_CQR_FILLED;
+ return cqr;
+}
+
+static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev,
+ struct dasd_block *block,
+ struct request *req)
+{
+ int tpm, cmdrtd, cmdwtd;
+ int use_prefix;
+
+ struct dasd_eckd_private *private;
+ int fcx_in_css, fcx_in_gneq, fcx_in_features;
+ struct dasd_device *basedev;
+ sector_t first_rec, last_rec;
+ sector_t first_trk, last_trk;
+ unsigned int first_offs, last_offs;
+ unsigned int blk_per_trk, blksize;
+ int cdlspecial;
+ struct dasd_ccw_req *cqr;
+
+ basedev = block->base;
+ private = (struct dasd_eckd_private *) basedev->private;
+
+ /* Calculate number of blocks/records per track. */
+ blksize = block->bp_block;
+ blk_per_trk = recs_per_track(&private->rdc_data, 0, blksize);
+ /* Calculate record id of first and last block. */
+ first_rec = first_trk = req->sector >> block->s2b_shift;
+ first_offs = sector_div(first_trk, blk_per_trk);
+ last_rec = last_trk =
+ (req->sector + req->nr_sectors - 1) >> block->s2b_shift;
+ last_offs = sector_div(last_trk, blk_per_trk);
+ cdlspecial = (private->uses_cdl && first_rec < 2*blk_per_trk);
+
+ /* is transport mode supported ? */
+ fcx_in_css = css_general_characteristics.fcx;
+ fcx_in_gneq = private->gneq->reserved2[7] & 0x04;
+ fcx_in_features = private->features.feature[40] & 0x80;
+ tpm = fcx_in_css && fcx_in_gneq && fcx_in_features;
+
+ /* is read track data and write track data in command mode supported? */
+ cmdrtd = private->features.feature[9] & 0x20;
+ cmdwtd = private->features.feature[12] & 0x40;
+ use_prefix = private->features.feature[8] & 0x01;
+
+ cqr = NULL;
+ if (cdlspecial || dasd_page_cache) {
+ /* do nothing, just fall through to the cmd mode single case */
+ } else if (!dasd_nofcx && tpm && (first_trk == last_trk)) {
+ cqr = dasd_eckd_build_cp_tpm_track(startdev, block, req,
+ first_rec, last_rec,
+ first_trk, last_trk,
+ first_offs, last_offs,
+ blk_per_trk, blksize);
+ if (IS_ERR(cqr) && PTR_ERR(cqr) != -EAGAIN)
+ cqr = NULL;
+ } else if (use_prefix &&
+ (((rq_data_dir(req) == READ) && cmdrtd) ||
+ ((rq_data_dir(req) == WRITE) && cmdwtd))) {
+ cqr = dasd_eckd_build_cp_cmd_track(startdev, block, req,
+ first_rec, last_rec,
+ first_trk, last_trk,
+ first_offs, last_offs,
+ blk_per_trk, blksize);
+ if (IS_ERR(cqr) && PTR_ERR(cqr) != -EAGAIN)
+ cqr = NULL;
+ }
+ if (!cqr)
+ cqr = dasd_eckd_build_cp_cmd_single(startdev, block, req,
+ first_rec, last_rec,
+ first_trk, last_trk,
+ first_offs, last_offs,
+ blk_per_trk, blksize);
+ return cqr;
+}
+
static int
dasd_eckd_free_cp(struct dasd_ccw_req *cqr, struct request *req)
{
@@ -1767,7 +2448,7 @@ out:
}
/*
- * Modify ccw chain in cqr so it can be started on a base device.
+ * Modify ccw/tcw in cqr so it can be started on a base device.
*
* Note that this is not enough to restart the cqr!
* Either reset cqr->startdev as well (summary unit check handling)
@@ -1777,13 +2458,24 @@ void dasd_eckd_reset_ccw_to_base_io(struct dasd_ccw_req *cqr)
{
struct ccw1 *ccw;
struct PFX_eckd_data *pfxdata;
-
- ccw = cqr->cpaddr;
- pfxdata = cqr->data;
-
- if (ccw->cmd_code == DASD_ECKD_CCW_PFX) {
+ struct tcw *tcw;
+ struct tccb *tccb;
+ struct dcw *dcw;
+
+ if (cqr->cpmode == 1) {
+ tcw = cqr->cpaddr;
+ tccb = tcw_get_tccb(tcw);
+ dcw = (struct dcw *)&tccb->tca[0];
+ pfxdata = (struct PFX_eckd_data *)&dcw->cd[0];
pfxdata->validity.verify_base = 0;
pfxdata->validity.hyper_pav = 0;
+ } else {
+ ccw = cqr->cpaddr;
+ pfxdata = cqr->data;
+ if (ccw->cmd_code == DASD_ECKD_CCW_PFX) {
+ pfxdata->validity.verify_base = 0;
+ pfxdata->validity.hyper_pav = 0;
+ }
}
}
@@ -1861,6 +2553,7 @@ dasd_eckd_release(struct dasd_device *device)
{
struct dasd_ccw_req *cqr;
int rc;
+ struct ccw1 *ccw;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
@@ -1868,14 +2561,15 @@ 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);
}
- cqr->cpaddr->cmd_code = DASD_ECKD_CCW_RELEASE;
- cqr->cpaddr->flags |= CCW_FLAG_SLI;
- cqr->cpaddr->count = 32;
- cqr->cpaddr->cda = (__u32)(addr_t) cqr->data;
+ ccw = cqr->cpaddr;
+ ccw->cmd_code = DASD_ECKD_CCW_RELEASE;
+ ccw->flags |= CCW_FLAG_SLI;
+ ccw->count = 32;
+ ccw->cda = (__u32)(addr_t) cqr->data;
cqr->startdev = device;
cqr->memdev = device;
clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags);
@@ -1902,6 +2596,7 @@ dasd_eckd_reserve(struct dasd_device *device)
{
struct dasd_ccw_req *cqr;
int rc;
+ struct ccw1 *ccw;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
@@ -1909,14 +2604,15 @@ 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);
}
- cqr->cpaddr->cmd_code = DASD_ECKD_CCW_RESERVE;
- cqr->cpaddr->flags |= CCW_FLAG_SLI;
- cqr->cpaddr->count = 32;
- cqr->cpaddr->cda = (__u32)(addr_t) cqr->data;
+ ccw = cqr->cpaddr;
+ ccw->cmd_code = DASD_ECKD_CCW_RESERVE;
+ ccw->flags |= CCW_FLAG_SLI;
+ ccw->count = 32;
+ ccw->cda = (__u32)(addr_t) cqr->data;
cqr->startdev = device;
cqr->memdev = device;
clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags);
@@ -1942,6 +2638,7 @@ dasd_eckd_steal_lock(struct dasd_device *device)
{
struct dasd_ccw_req *cqr;
int rc;
+ struct ccw1 *ccw;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
@@ -1949,14 +2646,15 @@ 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);
}
- cqr->cpaddr->cmd_code = DASD_ECKD_CCW_SLCK;
- cqr->cpaddr->flags |= CCW_FLAG_SLI;
- cqr->cpaddr->count = 32;
- cqr->cpaddr->cda = (__u32)(addr_t) cqr->data;
+ ccw = cqr->cpaddr;
+ ccw->cmd_code = DASD_ECKD_CCW_SLCK;
+ ccw->flags |= CCW_FLAG_SLI;
+ ccw->count = 32;
+ ccw->cda = (__u32)(addr_t) cqr->data;
cqr->startdev = device;
cqr->memdev = device;
clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags);
@@ -1990,7 +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);
}
@@ -2080,9 +2778,9 @@ 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)",
- private->attrib.operation, private->attrib.nr_cyl);
+ 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;
}
@@ -2133,7 +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;
@@ -2242,11 +2940,54 @@ 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.
*/
-static void dasd_eckd_dump_sense(struct dasd_device *device,
+static void dasd_eckd_dump_sense_ccw(struct dasd_device *device,
struct dasd_ccw_req *req, struct irb *irb)
{
char *page;
@@ -2255,8 +2996,8 @@ static void dasd_eckd_dump_sense(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 */
@@ -2265,7 +3006,7 @@ static void dasd_eckd_dump_sense(struct dasd_device *device,
dev_name(&device->cdev->dev));
len += sprintf(page + len, KERN_ERR PRINTK_HEADER
" in req: %p CS: 0x%02X DS: 0x%02X\n", req,
- irb->scsw.cmd.cstat, irb->scsw.cmd.dstat);
+ scsw_cstat(&irb->scsw), scsw_dstat(&irb->scsw));
len += sprintf(page + len, KERN_ERR PRINTK_HEADER
" device %s: Failing CCW: %p\n",
dev_name(&device->cdev->dev),
@@ -2341,6 +3082,147 @@ static void dasd_eckd_dump_sense(struct dasd_device *device,
free_page((unsigned long) page);
}
+
+/*
+ * Print sense data from a tcw.
+ */
+static void dasd_eckd_dump_sense_tcw(struct dasd_device *device,
+ struct dasd_ccw_req *req, struct irb *irb)
+{
+ char *page;
+ int len, sl, sct, residual;
+
+ struct tsb *tsb;
+ u8 *sense;
+
+
+ page = (char *) get_zeroed_page(GFP_ATOMIC);
+ if (page == NULL) {
+ DBF_DEV_EVENT(DBF_WARNING, device, " %s",
+ "No memory to dump sense data");
+ return;
+ }
+ /* dump the sense data */
+ len = sprintf(page, KERN_ERR PRINTK_HEADER
+ " I/O status report for device %s:\n",
+ dev_name(&device->cdev->dev));
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " in req: %p CS: 0x%02X DS: 0x%02X "
+ "fcxs: 0x%02X schxs: 0x%02X\n", req,
+ scsw_cstat(&irb->scsw), scsw_dstat(&irb->scsw),
+ irb->scsw.tm.fcxs, irb->scsw.tm.schxs);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " device %s: Failing TCW: %p\n",
+ dev_name(&device->cdev->dev),
+ (void *) (addr_t) irb->scsw.tm.tcw);
+
+ tsb = NULL;
+ sense = NULL;
+ if (irb->scsw.tm.tcw)
+ tsb = tcw_get_tsb(
+ (struct tcw *)(unsigned long)irb->scsw.tm.tcw);
+
+ if (tsb && (irb->scsw.tm.fcxs == 0x01)) {
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->length %d\n", tsb->length);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->flags %x\n", tsb->flags);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->dcw_offset %d\n", tsb->dcw_offset);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->count %d\n", tsb->count);
+ residual = tsb->count - 28;
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " residual %d\n", residual);
+
+ switch (tsb->flags & 0x07) {
+ case 1: /* tsa_iostat */
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.iostat.dev_time %d\n",
+ tsb->tsa.iostat.dev_time);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.iostat.def_time %d\n",
+ tsb->tsa.iostat.def_time);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.iostat.queue_time %d\n",
+ tsb->tsa.iostat.queue_time);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.iostat.dev_busy_time %d\n",
+ tsb->tsa.iostat.dev_busy_time);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.iostat.dev_act_time %d\n",
+ tsb->tsa.iostat.dev_act_time);
+ sense = tsb->tsa.iostat.sense;
+ break;
+ case 2: /* ts_ddpc */
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.ddpc.rc %d\n", tsb->tsa.ddpc.rc);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.ddpc.rcq: ");
+ for (sl = 0; sl < 16; sl++) {
+ for (sct = 0; sct < 8; sct++) {
+ len += sprintf(page + len, " %02x",
+ tsb->tsa.ddpc.rcq[sl]);
+ }
+ len += sprintf(page + len, "\n");
+ }
+ sense = tsb->tsa.ddpc.sense;
+ break;
+ case 3: /* tsa_intrg */
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.intrg.: not supportet yet \n");
+ break;
+ }
+
+ if (sense) {
+ for (sl = 0; sl < 4; sl++) {
+ len += sprintf(page + len,
+ KERN_ERR PRINTK_HEADER
+ " Sense(hex) %2d-%2d:",
+ (8 * sl), ((8 * sl) + 7));
+ for (sct = 0; sct < 8; sct++) {
+ len += sprintf(page + len, " %02x",
+ sense[8 * sl + sct]);
+ }
+ len += sprintf(page + len, "\n");
+ }
+
+ if (sense[27] & DASD_SENSE_BIT_0) {
+ /* 24 Byte Sense Data */
+ sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " 24 Byte: %x MSG %x, "
+ "%s MSGb to SYSOP\n",
+ sense[7] >> 4, sense[7] & 0x0f,
+ sense[1] & 0x10 ? "" : "no");
+ } else {
+ /* 32 Byte Sense Data */
+ sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " 32 Byte: Format: %x "
+ "Exception class %x\n",
+ sense[6] & 0x0f, sense[22] >> 4);
+ }
+ } else {
+ sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " SORRY - NO VALID SENSE AVAILABLE\n");
+ }
+ } else {
+ sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " SORRY - NO TSB DATA AVAILABLE\n");
+ }
+ printk("%s", page);
+ free_page((unsigned long) page);
+}
+
+static void dasd_eckd_dump_sense(struct dasd_device *device,
+ struct dasd_ccw_req *req, struct irb *irb)
+{
+ if (req && scsw_is_tm(&req->irb.scsw))
+ dasd_eckd_dump_sense_tcw(device, req, irb);
+ else
+ dasd_eckd_dump_sense_ccw(device, req, irb);
+}
+
+
/*
* max_blocks is dependent on the amount of storage that is available
* in the static io buffer for each device. Currently each device has
@@ -2375,6 +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,
};
diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h
index 2476f87d21d..ad45bcac3ce 100644
--- a/drivers/s390/block/dasd_eckd.h
+++ b/drivers/s390/block/dasd_eckd.h
@@ -38,8 +38,11 @@
#define DASD_ECKD_CCW_RELEASE 0x94
#define DASD_ECKD_CCW_READ_CKD_MT 0x9e
#define DASD_ECKD_CCW_WRITE_CKD_MT 0x9d
+#define DASD_ECKD_CCW_WRITE_TRACK_DATA 0xA5
+#define DASD_ECKD_CCW_READ_TRACK_DATA 0xA6
#define DASD_ECKD_CCW_RESERVE 0xB4
#define DASD_ECKD_CCW_PFX 0xE7
+#define DASD_ECKD_CCW_PFX_READ 0xEA
#define DASD_ECKD_CCW_RSCK 0xF9
/*
@@ -48,6 +51,11 @@
#define PSF_ORDER_PRSSD 0x18
#define PSF_ORDER_SSC 0x1D
+/*
+ * Size that is reportet for large volumes in the old 16-bit no_cyl field
+ */
+#define LV_COMPAT_CYL 0xFFFE
+
/*****************************************************************************
* SECTION: Type Definitions
****************************************************************************/
@@ -118,7 +126,9 @@ struct DE_eckd_data {
unsigned long long ep_sys_time; /* Ext Parameter - System Time Stamp */
__u8 ep_format; /* Extended Parameter format byte */
__u8 ep_prio; /* Extended Parameter priority I/O byte */
- __u8 ep_reserved[6]; /* Extended Parameter Reserved */
+ __u8 ep_reserved1; /* Extended Parameter Reserved */
+ __u8 ep_rec_per_track; /* Number of records on a track */
+ __u8 ep_reserved[4]; /* Extended Parameter Reserved */
} __attribute__ ((packed));
struct LO_eckd_data {
@@ -139,11 +149,37 @@ struct LO_eckd_data {
__u16 length;
} __attribute__ ((packed));
+struct LRE_eckd_data {
+ struct {
+ unsigned char orientation:2;
+ unsigned char operation:6;
+ } __attribute__ ((packed)) operation;
+ struct {
+ unsigned char length_valid:1;
+ unsigned char length_scope:1;
+ unsigned char imbedded_ccw_valid:1;
+ unsigned char check_bytes:2;
+ unsigned char imbedded_count_valid:1;
+ unsigned char reserved:1;
+ unsigned char read_count_suffix:1;
+ } __attribute__ ((packed)) auxiliary;
+ __u8 imbedded_ccw;
+ __u8 count;
+ struct ch_t seek_addr;
+ struct chr_t search_arg;
+ __u8 sector;
+ __u16 length;
+ __u8 imbedded_count;
+ __u8 extended_operation;
+ __u16 extended_parameter_length;
+ __u8 extended_parameter[0];
+} __attribute__ ((packed));
+
/* Prefix data for format 0x00 and 0x01 */
struct PFX_eckd_data {
unsigned char format;
struct {
- unsigned char define_extend:1;
+ unsigned char define_extent:1;
unsigned char time_stamp:1;
unsigned char verify_base:1;
unsigned char hyper_pav:1;
@@ -153,9 +189,8 @@ struct PFX_eckd_data {
__u8 aux;
__u8 base_lss;
__u8 reserved[7];
- struct DE_eckd_data define_extend;
- struct LO_eckd_data locate_record;
- __u8 LO_extended_data[4];
+ struct DE_eckd_data define_extent;
+ struct LRE_eckd_data locate_record;
} __attribute__ ((packed));
struct dasd_eckd_characteristics {
@@ -228,7 +263,8 @@ struct dasd_eckd_characteristics {
__u8 factor7;
__u8 factor8;
__u8 reserved2[3];
- __u8 reserved3[10];
+ __u8 reserved3[6];
+ __u32 long_no_cyl;
} __attribute__ ((packed));
/* elements of the configuration data */
@@ -406,6 +442,7 @@ struct dasd_eckd_private {
int uses_cdl;
struct attrib_data_t attrib; /* e.g. cache operations */
struct dasd_rssd_features features;
+ u32 real_cyl;
/* alias managemnet */
struct dasd_uid uid;
diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c
index f8e05ce9862..c24c8c30380 100644
--- a/drivers/s390/block/dasd_eer.c
+++ b/drivers/s390/block/dasd_eer.c
@@ -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>
@@ -297,11 +299,12 @@ static void dasd_eer_write_standard_trigger(struct dasd_device *device,
struct dasd_eer_header header;
unsigned long flags;
struct eerbuffer *eerb;
+ char *sense;
/* go through cqr chain and count the valid sense data sets */
data_size = 0;
for (temp_cqr = cqr; temp_cqr; temp_cqr = temp_cqr->refers)
- if (temp_cqr->irb.esw.esw0.erw.cons)
+ if (dasd_get_sense(&temp_cqr->irb))
data_size += 32;
header.total_size = sizeof(header) + data_size + 4; /* "EOR" */
@@ -316,9 +319,11 @@ static void dasd_eer_write_standard_trigger(struct dasd_device *device,
list_for_each_entry(eerb, &bufferlist, list) {
dasd_eer_start_record(eerb, header.total_size);
dasd_eer_write_buffer(eerb, (char *) &header, sizeof(header));
- for (temp_cqr = cqr; temp_cqr; temp_cqr = temp_cqr->refers)
- if (temp_cqr->irb.esw.esw0.erw.cons)
- dasd_eer_write_buffer(eerb, cqr->irb.ecw, 32);
+ for (temp_cqr = cqr; temp_cqr; temp_cqr = temp_cqr->refers) {
+ sense = dasd_get_sense(&temp_cqr->irb);
+ if (sense)
+ dasd_eer_write_buffer(eerb, sense, 32);
+ }
dasd_eer_write_buffer(eerb, "EOR", 4);
}
spin_unlock_irqrestore(&bufferlock, flags);
@@ -451,6 +456,7 @@ int dasd_eer_enable(struct dasd_device *device)
{
struct dasd_ccw_req *cqr;
unsigned long flags;
+ struct ccw1 *ccw;
if (device->eer_cqr)
return 0;
@@ -468,10 +474,11 @@ int dasd_eer_enable(struct dasd_device *device)
cqr->expires = 10 * HZ;
clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags);
- cqr->cpaddr->cmd_code = DASD_ECKD_CCW_SNSS;
- cqr->cpaddr->count = SNSS_DATA_SIZE;
- cqr->cpaddr->flags = 0;
- cqr->cpaddr->cda = (__u32)(addr_t) cqr->data;
+ ccw = cqr->cpaddr;
+ ccw->cmd_code = DASD_ECKD_CCW_SNSS;
+ ccw->count = SNSS_DATA_SIZE;
+ ccw->flags = 0;
+ ccw->cda = (__u32)(addr_t) cqr->data;
cqr->buildclk = get_clock();
cqr->status = DASD_CQR_FILLED;
@@ -534,7 +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();
@@ -687,7 +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;
}
diff --git a/drivers/s390/block/dasd_erp.c b/drivers/s390/block/dasd_erp.c
index 8f10000851a..d970ce2814b 100644
--- a/drivers/s390/block/dasd_erp.c
+++ b/drivers/s390/block/dasd_erp.c
@@ -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);
+
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index f1d17602169..a3eb6fd1467 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -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;
@@ -160,15 +163,16 @@ 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)",
- cdev->id.dev_type,
- cdev->id.dev_model,
- cdev->id.cu_type,
- cdev->id.cu_model,
- ((private->rdc_data.blk_bdsa *
- (private->rdc_data.blk_size >> 9)) >> 11),
- private->rdc_data.blk_size);
+ 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,
+ cdev->id.cu_model,
+ ((private->rdc_data.blk_bdsa *
+ (private->rdc_data.blk_size >> 9)) >> 11),
+ private->rdc_data.blk_size);
return 0;
}
@@ -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;
};
@@ -437,6 +441,25 @@ dasd_fba_fill_info(struct dasd_device * device,
}
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,
};
diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c
index e99d566b69c..d3198303b93 100644
--- a/drivers/s390/block/dasd_genhd.c
+++ b/drivers/s390/block/dasd_genhd.c
@@ -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;
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index 4a39084d9c9..c1e487f774c 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -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 */
@@ -157,7 +160,8 @@ struct dasd_ccw_req {
struct dasd_block *block; /* the originating block device */
struct dasd_device *memdev; /* the device used to allocate this */
struct dasd_device *startdev; /* device the request is started on */
- struct ccw1 *cpaddr; /* address of channel program */
+ void *cpaddr; /* address of ccw or tcw */
+ unsigned char cpmode; /* 0 = cmd mode, 1 = itcw */
char status; /* status of this request */
short retries; /* A retry counter */
unsigned long flags; /* flags of this request */
@@ -280,6 +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 *);
@@ -378,7 +384,7 @@ struct dasd_block {
struct block_device *bdev;
atomic_t open_count;
- unsigned long blocks; /* size of volume in blocks */
+ unsigned long long blocks; /* size of volume in blocks */
unsigned int bp_block; /* bytes per block */
unsigned int s2b_shift; /* log2 (bp_block/512) */
@@ -573,12 +579,14 @@ int dasd_generic_notify(struct ccw_device *, int);
void dasd_generic_handle_state_change(struct dasd_device *);
int dasd_generic_read_dev_chars(struct dasd_device *, char *, void **, int);
+char *dasd_get_sense(struct irb *);
/* externals in dasd_devmap.c */
extern int dasd_max_devindex;
extern int dasd_probeonly;
extern int dasd_autodetect;
extern int dasd_nopav;
+extern int dasd_nofcx;
int dasd_devmap_init(void);
void dasd_devmap_exit(void);
@@ -623,6 +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 *);
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index b82d816d9ef..4ce3f72ee1c 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -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);
@@ -140,13 +145,13 @@ 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;
}
DBF_DEV_EVENT(DBF_NOTICE, base,
- "formatting units %d to %d (%d B blocks) flags %d",
+ "formatting units %u to %u (%u B blocks) flags %u",
fdata->start_unit,
fdata->stop_unit, fdata->blksize, fdata->intensity);
@@ -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 %d 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);
@@ -365,9 +370,9 @@ static int dasd_ioctl_readall_cmb(struct dasd_block *block, unsigned int cmd,
return ret;
}
-int
-dasd_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg)
+static int
+dasd_do_ioctl(struct block_device *bdev, fmode_t mode,
+ unsigned int cmd, unsigned long arg)
{
struct dasd_block *block = bdev->bd_disk->private_data;
void __user *argp = (void __user *)arg;
@@ -420,3 +425,14 @@ dasd_ioctl(struct block_device *bdev, fmode_t mode,
return -EINVAL;
}
}
+
+int dasd_ioctl(struct block_device *bdev, fmode_t mode,
+ unsigned int cmd, unsigned long arg)
+{
+ int rc;
+
+ lock_kernel();
+ rc = dasd_do_ioctl(bdev, mode, cmd, arg);
+ unlock_kernel();
+ return rc;
+}
diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c
index bf6fd348f20..2080ba6a69b 100644
--- a/drivers/s390/block/dasd_proc.c
+++ b/drivers/s390/block/dasd_proc.c
@@ -11,6 +11,8 @@
*
*/
+#define KMSG_COMPONENT "dasd"
+
#include <linux/ctype.h>
#include <linux/seq_file.h>
#include <linux/vmalloc.h>
@@ -112,7 +114,7 @@ dasd_devices_show(struct seq_file *m, void *v)
seq_printf(m, "n/f ");
else
seq_printf(m,
- "at blocksize: %d, %ld blocks, %ld MB",
+ "at blocksize: %d, %lld blocks, %lld MB",
block->bp_block, block->blocks,
((block->bp_block >> 9) *
block->blocks) >> 11);
@@ -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 */
}
diff --git a/drivers/s390/char/tape.h b/drivers/s390/char/tape.h
index d0d565a05df..c07809c8016 100644
--- a/drivers/s390/char/tape.h
+++ b/drivers/s390/char/tape.h
@@ -324,8 +324,6 @@ static inline void tape_proc_cleanup (void) {;}
#endif
/* a function for dumping device sense info */
-extern void tape_dump_sense(struct tape_device *, struct tape_request *,
- struct irb *);
extern void tape_dump_sense_dbf(struct tape_device *, struct tape_request *,
struct irb *);
diff --git a/drivers/s390/char/tape_34xx.c b/drivers/s390/char/tape_34xx.c
index 22ca34361ed..807ded5eb04 100644
--- a/drivers/s390/char/tape_34xx.c
+++ b/drivers/s390/char/tape_34xx.c
@@ -8,6 +8,8 @@
* Martin Schwidefsky <schwidefsky@de.ibm.com>
*/
+#define KMSG_COMPONENT "tape"
+
#include <linux/module.h>
#include <linux/init.h>
#include <linux/bio.h>
@@ -18,8 +20,6 @@
#include "tape.h"
#include "tape_std.h"
-#define PRINTK_HEADER "TAPE_34XX: "
-
/*
* Pointer to debug area.
*/
@@ -203,8 +203,7 @@ tape_34xx_unsolicited_irq(struct tape_device *device, struct irb *irb)
tape_34xx_schedule_work(device, TO_MSEN);
} else {
DBF_EVENT(3, "unsol.irq! dev end: %08x\n", device->cdev_id);
- PRINT_WARN("Unsolicited IRQ (Device End) caught.\n");
- tape_dump_sense(device, NULL, irb);
+ tape_dump_sense_dbf(device, NULL, irb);
}
return TAPE_IO_SUCCESS;
}
@@ -226,9 +225,7 @@ tape_34xx_erp_read_opposite(struct tape_device *device,
tape_std_read_backward(device, request);
return tape_34xx_erp_retry(request);
}
- if (request->op != TO_RBA)
- PRINT_ERR("read_opposite called with state:%s\n",
- tape_op_verbose[request->op]);
+
/*
* We tried to read forward and backward, but hat no
* success -> failed.
@@ -241,13 +238,9 @@ tape_34xx_erp_bug(struct tape_device *device, struct tape_request *request,
struct irb *irb, int no)
{
if (request->op != TO_ASSIGN) {
- PRINT_WARN("An unexpected condition #%d was caught in "
- "tape error recovery.\n", no);
- PRINT_WARN("Please report this incident.\n");
- if (request)
- PRINT_WARN("Operation of tape:%s\n",
- tape_op_verbose[request->op]);
- tape_dump_sense(device, request, irb);
+ dev_err(&device->cdev->dev, "An unexpected condition %d "
+ "occurred in tape error recovery\n", no);
+ tape_dump_sense_dbf(device, request, irb);
}
return tape_34xx_erp_failed(request, -EIO);
}
@@ -261,9 +254,8 @@ tape_34xx_erp_overrun(struct tape_device *device, struct tape_request *request,
struct irb *irb)
{
if (irb->ecw[3] == 0x40) {
- PRINT_WARN ("Data overrun error between control-unit "
- "and drive. Use a faster channel connection, "
- "if possible! \n");
+ dev_warn (&device->cdev->dev, "A data overrun occurred between"
+ " the control unit and tape unit\n");
return tape_34xx_erp_failed(request, -EIO);
}
return tape_34xx_erp_bug(device, request, irb, -1);
@@ -280,7 +272,8 @@ tape_34xx_erp_sequence(struct tape_device *device,
/*
* cu detected incorrect block-id sequence on tape.
*/
- PRINT_WARN("Illegal block-id sequence found!\n");
+ dev_warn (&device->cdev->dev, "The block ID sequence on the "
+ "tape is incorrect\n");
return tape_34xx_erp_failed(request, -EIO);
}
/*
@@ -393,8 +386,6 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
/* Writing at physical end of volume */
return tape_34xx_erp_failed(request, -ENOSPC);
default:
- PRINT_ERR("Invalid op in %s:%i\n",
- __func__, __LINE__);
return tape_34xx_erp_failed(request, 0);
}
}
@@ -420,7 +411,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
irb, -4);
/* data check is permanent, CU recovery has failed */
- PRINT_WARN("Permanent read error\n");
+ dev_warn (&device->cdev->dev, "A read error occurred "
+ "that cannot be recovered\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x25:
// a write data check occurred
@@ -433,22 +425,26 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
irb, -5);
// data check is permanent, cu-recovery has failed
- PRINT_WARN("Permanent write error\n");
+ dev_warn (&device->cdev->dev, "A write error on the "
+ "tape cannot be recovered\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x26:
/* Data Check (read opposite) occurred. */
return tape_34xx_erp_read_opposite(device, request);
case 0x28:
/* ID-Mark at tape start couldn't be written */
- PRINT_WARN("ID-Mark could not be written.\n");
+ dev_warn (&device->cdev->dev, "Writing the ID-mark "
+ "failed\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x31:
/* Tape void. Tried to read beyond end of device. */
- PRINT_WARN("Read beyond end of recorded area.\n");
+ dev_warn (&device->cdev->dev, "Reading the tape beyond"
+ " the end of the recorded area failed\n");
return tape_34xx_erp_failed(request, -ENOSPC);
case 0x41:
/* Record sequence error. */
- PRINT_WARN("Invalid block-id sequence found.\n");
+ dev_warn (&device->cdev->dev, "The tape contains an "
+ "incorrect block ID sequence\n");
return tape_34xx_erp_failed(request, -EIO);
default:
/* all data checks for 3480 should result in one of
@@ -470,16 +466,12 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
switch (sense[3]) {
case 0x00:
/* Unit check with erpa code 0. Report and ignore. */
- PRINT_WARN("Non-error sense was found. "
- "Unit-check will be ignored.\n");
return TAPE_IO_SUCCESS;
case 0x21:
/*
* Data streaming not operational. CU will switch to
* interlock mode. Reissue the command.
*/
- PRINT_WARN("Data streaming not operational. "
- "Switching to interlock-mode.\n");
return tape_34xx_erp_retry(request);
case 0x22:
/*
@@ -487,11 +479,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
* error on the lower interface, internal path not usable,
* or error during cartridge load.
*/
- PRINT_WARN("A path equipment check occurred. One of the "
- "following conditions occurred:\n");
- PRINT_WARN("drive adapter error, buffer error on the lower "
- "interface, internal path not usable, error "
- "during cartridge load.\n");
+ dev_warn (&device->cdev->dev, "A path equipment check occurred"
+ " for the tape device\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x24:
/*
@@ -514,7 +503,6 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
* but the hardware isn't capable to do idrc, or a perform
* subsystem func is issued and the CU is not on-line.
*/
- PRINT_WARN ("Function incompatible. Try to switch off idrc\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x2a:
/*
@@ -552,23 +540,26 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
* reading the format id mark or that that format specified
* is not supported by the drive.
*/
- PRINT_WARN("Drive not capable processing the tape format!\n");
+ dev_warn (&device->cdev->dev, "The tape unit cannot process "
+ "the tape format\n");
return tape_34xx_erp_failed(request, -EMEDIUMTYPE);
case 0x30:
/* The medium is write protected. */
- PRINT_WARN("Medium is write protected!\n");
+ dev_warn (&device->cdev->dev, "The tape medium is write-"
+ "protected\n");
return tape_34xx_erp_failed(request, -EACCES);
case 0x32:
// Tension loss. We cannot recover this, it's an I/O error.
- PRINT_WARN("The drive lost tape tension.\n");
+ dev_warn (&device->cdev->dev, "The tape does not have the "
+ "required tape tension\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x33:
/*
* Load Failure. The cartridge was not inserted correctly or
* the tape is not threaded correctly.
*/
- PRINT_WARN("Cartridge load failure. Reload the cartridge "
- "and try again.\n");
+ dev_warn (&device->cdev->dev, "The tape unit failed to load"
+ " the cartridge\n");
tape_34xx_delete_sbid_from(device, 0);
return tape_34xx_erp_failed(request, -EIO);
case 0x34:
@@ -576,8 +567,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
* Unload failure. The drive cannot maintain tape tension
* and control tape movement during an unload operation.
*/
- PRINT_WARN("Failure during cartridge unload. "
- "Please try manually.\n");
+ dev_warn (&device->cdev->dev, "Automatic unloading of the tape"
+ " cartridge failed\n");
if (request->op == TO_RUN)
return tape_34xx_erp_failed(request, -EIO);
return tape_34xx_erp_bug(device, request, irb, sense[3]);
@@ -589,8 +580,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
* - the cartridge loader does not respond correctly
* - a failure occurs during an index, load, or unload cycle
*/
- PRINT_WARN("Equipment check! Please check the drive and "
- "the cartridge loader.\n");
+ dev_warn (&device->cdev->dev, "An equipment check has occurred"
+ " on the tape unit\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x36:
if (device->cdev->id.driver_info == tape_3490)
@@ -603,7 +594,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
* Tape length error. The tape is shorter than reported in
* the beginning-of-tape data.
*/
- PRINT_WARN("Tape length error.\n");
+ dev_warn (&device->cdev->dev, "The tape information states an"
+ " incorrect length\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x38:
/*
@@ -620,12 +612,12 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
return tape_34xx_erp_failed(request, -EIO);
case 0x3a:
/* Drive switched to not ready. */
- PRINT_WARN("Drive not ready. Turn the ready/not ready switch "
- "to ready position and try again.\n");
+ dev_warn (&device->cdev->dev, "The tape unit is not ready\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x3b:
/* Manual rewind or unload. This causes an I/O error. */
- PRINT_WARN("Medium was rewound or unloaded manually.\n");
+ dev_warn (&device->cdev->dev, "The tape medium has been "
+ "rewound or unloaded manually\n");
tape_34xx_delete_sbid_from(device, 0);
return tape_34xx_erp_failed(request, -EIO);
case 0x42:
@@ -633,7 +625,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
* Degraded mode. A condition that can cause degraded
* performance is detected.
*/
- PRINT_WARN("Subsystem is running in degraded mode.\n");
+ dev_warn (&device->cdev->dev, "The tape subsystem is running "
+ "in degraded mode\n");
return tape_34xx_erp_retry(request);
case 0x43:
/* Drive not ready. */
@@ -652,7 +645,6 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
break;
}
}
- PRINT_WARN("The drive is not ready.\n");
return tape_34xx_erp_failed(request, -ENOMEDIUM);
case 0x44:
/* Locate Block unsuccessful. */
@@ -663,7 +655,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
return tape_34xx_erp_failed(request, -EIO);
case 0x45:
/* The drive is assigned to a different channel path. */
- PRINT_WARN("The drive is assigned elsewhere.\n");
+ dev_warn (&device->cdev->dev, "The tape unit is already "
+ "assigned\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x46:
/*
@@ -671,11 +664,12 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
* the power supply may be switched off or
* the drive address may not be set correctly.
*/
- PRINT_WARN("The drive is not on-line.");
+ dev_warn (&device->cdev->dev, "The tape unit is not online\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x47:
/* Volume fenced. CU reports volume integrity is lost. */
- PRINT_WARN("Volume fenced. The volume integrity is lost.\n");
+ dev_warn (&device->cdev->dev, "The control unit has fenced "
+ "access to the tape volume\n");
tape_34xx_delete_sbid_from(device, 0);
return tape_34xx_erp_failed(request, -EIO);
case 0x48:
@@ -683,20 +677,21 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
return tape_34xx_erp_retry(request);
case 0x49:
/* Bus out check. A parity check error on the bus was found. */
- PRINT_WARN("Bus out check. A data transfer over the bus "
- "has been corrupted.\n");
+ dev_warn (&device->cdev->dev, "A parity error occurred on the "
+ "tape bus\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x4a:
/* Control unit erp failed. */
- PRINT_WARN("The control unit I/O error recovery failed.\n");
+ dev_warn (&device->cdev->dev, "I/O error recovery failed on "
+ "the tape control unit\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x4b:
/*
* CU and drive incompatible. The drive requests micro-program
* patches, which are not available on the CU.
*/
- PRINT_WARN("The drive needs microprogram patches from the "
- "control unit, which are not available.\n");
+ dev_warn (&device->cdev->dev, "The tape unit requires a "
+ "firmware update\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x4c:
/*
@@ -721,8 +716,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
* the block to be written is larger than allowed for
* buffered mode.
*/
- PRINT_WARN("Maximum block size for buffered "
- "mode exceeded.\n");
+ dev_warn (&device->cdev->dev, "The maximum block size"
+ " for buffered mode is exceeded\n");
return tape_34xx_erp_failed(request, -ENOBUFS);
}
/* This erpa is reserved for 3480. */
@@ -759,22 +754,20 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
return tape_34xx_erp_retry(request);
case 0x55:
/* Channel interface recovery (permanent). */
- PRINT_WARN("A permanent channel interface error occurred.\n");
+ dev_warn (&device->cdev->dev, "A channel interface error cannot be"
+ " recovered\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x56:
/* Channel protocol error. */
- PRINT_WARN("A channel protocol error occurred.\n");
+ dev_warn (&device->cdev->dev, "A channel protocol error "
+ "occurred\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x57:
if (device->cdev->id.driver_info == tape_3480) {
/* Attention intercept. */
- PRINT_WARN("An attention intercept occurred, "
- "which will be recovered.\n");
return tape_34xx_erp_retry(request);
} else {
/* Global status intercept. */
- PRINT_WARN("An global status intercept was received, "
- "which will be recovered.\n");
return tape_34xx_erp_retry(request);
}
case 0x5a:
@@ -782,42 +775,31 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
* Tape length incompatible. The tape inserted is too long,
* which could cause damage to the tape or the drive.
*/
- PRINT_WARN("Tape Length Incompatible\n");
- PRINT_WARN("Tape length exceeds IBM enhanced capacity "
- "cartdridge length or a medium\n");
- PRINT_WARN("with EC-CST identification mark has been mounted "
- "in a device that writes\n");
- PRINT_WARN("3480 or 3480 XF format.\n");
+ dev_warn (&device->cdev->dev, "The tape unit does not support "
+ "the tape length\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x5b:
/* Format 3480 XF incompatible */
if (sense[1] & SENSE_BEGINNING_OF_TAPE)
/* The tape will get overwritten. */
return tape_34xx_erp_retry(request);
- PRINT_WARN("Format 3480 XF Incompatible\n");
- PRINT_WARN("Medium has been created in 3480 format. "
- "To change the format writes\n");
- PRINT_WARN("must be issued at BOT.\n");
+ dev_warn (&device->cdev->dev, "The tape unit does not support"
+ " format 3480 XF\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x5c:
/* Format 3480-2 XF incompatible */
- PRINT_WARN("Format 3480-2 XF Incompatible\n");
- PRINT_WARN("Device can only read 3480 or 3480 XF format.\n");
+ dev_warn (&device->cdev->dev, "The tape unit does not support tape "
+ "format 3480-2 XF\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x5d:
/* Tape length violation. */
- PRINT_WARN("Tape Length Violation\n");
- PRINT_WARN("The mounted tape exceeds IBM Enhanced Capacity "
- "Cartdridge System Tape length.\n");
- PRINT_WARN("This may cause damage to the drive or tape when "
- "processing to the EOV\n");
+ dev_warn (&device->cdev->dev, "The tape unit does not support"
+ " the current tape length\n");
return tape_34xx_erp_failed(request, -EMEDIUMTYPE);
case 0x5e:
/* Compaction algorithm incompatible. */
- PRINT_WARN("Compaction Algorithm Incompatible\n");
- PRINT_WARN("The volume is recorded using an incompatible "
- "compaction algorithm,\n");
- PRINT_WARN("which is not supported by the device.\n");
+ dev_warn (&device->cdev->dev, "The tape unit does not support"
+ " the compaction algorithm\n");
return tape_34xx_erp_failed(request, -EMEDIUMTYPE);
/* The following erpas should have been covered earlier. */
@@ -848,7 +830,6 @@ tape_34xx_irq(struct tape_device *device, struct tape_request *request,
(irb->scsw.cmd.dstat & DEV_STAT_DEV_END) &&
(request->op == TO_WRI)) {
/* Write at end of volume */
- PRINT_INFO("End of volume\n"); /* XXX */
return tape_34xx_erp_failed(request, -ENOSPC);
}
@@ -869,9 +850,7 @@ tape_34xx_irq(struct tape_device *device, struct tape_request *request,
}
DBF_EVENT(6, "xunknownirq\n");
- PRINT_ERR("Unexpected interrupt.\n");
- PRINT_ERR("Current op is: %s", tape_op_verbose[request->op]);
- tape_dump_sense(device, request, irb);
+ tape_dump_sense_dbf(device, request, irb);
return TAPE_IO_STOP;
}
diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c
index 71605a179d6..fc1d9129414 100644
--- a/drivers/s390/char/tape_3590.c
+++ b/drivers/s390/char/tape_3590.c
@@ -8,12 +8,15 @@
* Martin Schwidefsky <schwidefsky@de.ibm.com>
*/
+#define KMSG_COMPONENT "tape"
+
#include <linux/module.h>
#include <linux/init.h>
#include <linux/bio.h>
#include <asm/ebcdic.h>
#define TAPE_DBF_AREA tape_3590_dbf
+#define BUFSIZE 512 /* size of buffers for dynamic generated messages */
#include "tape.h"
#include "tape_std.h"
@@ -36,7 +39,7 @@ EXPORT_SYMBOL(TAPE_DBF_AREA);
* - Read Alternate: implemented
*******************************************************************/
-#define PRINTK_HEADER "TAPE_3590: "
+#define KMSG_COMPONENT "tape"
static const char *tape_3590_msg[TAPE_3590_MAX_MSG] = {
[0x00] = "",
@@ -661,8 +664,7 @@ tape_3590_bread(struct tape_device *device, struct request *req)
ccw++;
dst += TAPEBLOCK_HSEC_SIZE;
}
- if (off > bv->bv_len)
- BUG();
+ BUG_ON(off > bv->bv_len);
}
ccw = tape_ccw_end(ccw, NOP, 0, NULL);
DBF_EVENT(6, "xBREDccwg\n");
@@ -726,7 +728,7 @@ static void tape_3590_med_state_set(struct tape_device *device,
}
c_info->medium_status |= TAPE390_MEDIUM_LOADED_MASK;
if (sense->flags & MSENSE_CRYPT_MASK) {
- PRINT_INFO("Medium is encrypted (%04x)\n", sense->flags);
+ DBF_EVENT(6, "Medium is encrypted (%04x)\n", sense->flags);
c_info->medium_status |= TAPE390_MEDIUM_ENCRYPTED_MASK;
} else {
DBF_EVENT(6, "Medium is not encrypted %04x\n", sense->flags);
@@ -847,8 +849,7 @@ tape_3590_unsolicited_irq(struct tape_device *device, struct irb *irb)
tape_3590_schedule_work(device, TO_READ_ATTMSG);
} else {
DBF_EVENT(3, "unsol.irq! dev end: %08x\n", device->cdev_id);
- PRINT_WARN("Unsolicited IRQ (Device End) caught.\n");
- tape_dump_sense(device, NULL, irb);
+ tape_dump_sense_dbf(device, NULL, irb);
}
/* check medium state */
tape_3590_schedule_work(device, TO_MSEN);
@@ -876,8 +877,6 @@ tape_3590_erp_basic(struct tape_device *device, struct tape_request *request,
case SENSE_BRA_DRE:
return tape_3590_erp_failed(device, request, irb, rc);
default:
- PRINT_ERR("Unknown BRA %x - This should not happen!\n",
- sense->bra);
BUG();
return TAPE_IO_STOP;
}
@@ -910,7 +909,8 @@ tape_3590_erp_swap(struct tape_device *device, struct tape_request *request,
* should proceed with the new tape... this
* should probably be done in user space!
*/
- PRINT_WARN("(%s): Swap Tape Device!\n", dev_name(&device->cdev->dev));
+ dev_warn (&device->cdev->dev, "The tape medium must be loaded into a "
+ "different tape unit\n");
return tape_3590_erp_basic(device, request, irb, -EIO);
}
@@ -985,8 +985,6 @@ tape_3590_erp_read_opposite(struct tape_device *device,
return tape_3590_erp_failed(device, request, irb, -EIO);
break;
default:
- PRINT_WARN("read_opposite_recovery_called_with_op: %s\n",
- tape_op_verbose[request->op]);
return tape_3590_erp_failed(device, request, irb, -EIO);
}
}
@@ -998,50 +996,61 @@ static void
tape_3590_print_mim_msg_f0(struct tape_device *device, struct irb *irb)
{
struct tape_3590_sense *sense;
+ char *exception, *service;
+
+ exception = kmalloc(BUFSIZE, GFP_ATOMIC);
+ service = kmalloc(BUFSIZE, GFP_ATOMIC);
+
+ if (!exception || !service)
+ goto out_nomem;
sense = (struct tape_3590_sense *) irb->ecw;
/* Exception Message */
switch (sense->fmt.f70.emc) {
case 0x02:
- PRINT_WARN("(%s): Data degraded\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "Data degraded");
break;
case 0x03:
- PRINT_WARN("(%s): Data degraded in partion %i\n",
- dev_name(&device->cdev->dev), sense->fmt.f70.mp);
+ snprintf(exception, BUFSIZE, "Data degraded in partion %i",
+ sense->fmt.f70.mp);
break;
case 0x04:
- PRINT_WARN("(%s): Medium degraded\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "Medium degraded");
break;
case 0x05:
- PRINT_WARN("(%s): Medium degraded in partition %i\n",
- dev_name(&device->cdev->dev), sense->fmt.f70.mp);
+ snprintf(exception, BUFSIZE, "Medium degraded in partition %i",
+ sense->fmt.f70.mp);
break;
case 0x06:
- PRINT_WARN("(%s): Block 0 Error\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "Block 0 Error");
break;
case 0x07:
- PRINT_WARN("(%s): Medium Exception 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f70.md);
+ snprintf(exception, BUFSIZE, "Medium Exception 0x%02x",
+ sense->fmt.f70.md);
break;
default:
- PRINT_WARN("(%s): MIM ExMsg: 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f70.emc);
+ snprintf(exception, BUFSIZE, "0x%02x",
+ sense->fmt.f70.emc);
break;
}
/* Service Message */
switch (sense->fmt.f70.smc) {
case 0x02:
- PRINT_WARN("(%s): Reference Media maintenance procedure %i\n",
- dev_name(&device->cdev->dev), sense->fmt.f70.md);
+ snprintf(service, BUFSIZE, "Reference Media maintenance "
+ "procedure %i", sense->fmt.f70.md);
break;
default:
- PRINT_WARN("(%s): MIM ServiceMsg: 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f70.smc);
+ snprintf(service, BUFSIZE, "0x%02x",
+ sense->fmt.f70.smc);
break;
}
+
+ dev_warn (&device->cdev->dev, "Tape media information: exception %s, "
+ "service %s\n", exception, service);
+
+out_nomem:
+ kfree(exception);
+ kfree(service);
}
/*
@@ -1051,108 +1060,108 @@ static void
tape_3590_print_io_sim_msg_f1(struct tape_device *device, struct irb *irb)
{
struct tape_3590_sense *sense;
+ char *exception, *service;
+
+ exception = kmalloc(BUFSIZE, GFP_ATOMIC);
+ service = kmalloc(BUFSIZE, GFP_ATOMIC);
+
+ if (!exception || !service)
+ goto out_nomem;
sense = (struct tape_3590_sense *) irb->ecw;
/* Exception Message */
switch (sense->fmt.f71.emc) {
case 0x01:
- PRINT_WARN("(%s): Effect of failure is unknown\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "Effect of failure is unknown");
break;
case 0x02:
- PRINT_WARN("(%s): CU Exception - no performance impact\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "CU Exception - no performance "
+ "impact");
break;
case 0x03:
- PRINT_WARN("(%s): CU Exception on channel interface 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "CU Exception on channel "
+ "interface 0x%02x", sense->fmt.f71.md[0]);
break;
case 0x04:
- PRINT_WARN("(%s): CU Exception on device path 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "CU Exception on device path "
+ "0x%02x", sense->fmt.f71.md[0]);
break;
case 0x05:
- PRINT_WARN("(%s): CU Exception on library path 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "CU Exception on library path "
+ "0x%02x", sense->fmt.f71.md[0]);
break;
case 0x06:
- PRINT_WARN("(%s): CU Exception on node 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "CU Exception on node 0x%02x",
+ sense->fmt.f71.md[0]);
break;
case 0x07:
- PRINT_WARN("(%s): CU Exception on partition 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "CU Exception on partition "
+ "0x%02x", sense->fmt.f71.md[0]);
break;
default:
- PRINT_WARN("(%s): SIM ExMsg: 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.emc);
+ snprintf(exception, BUFSIZE, "0x%02x",
+ sense->fmt.f71.emc);
}
/* Service Message */
switch (sense->fmt.f71.smc) {
case 0x01:
- PRINT_WARN("(%s): Repair impact is unknown\n",
- dev_name(&device->cdev->dev));
+ snprintf(service, BUFSIZE, "Repair impact is unknown");
break;
case 0x02:
- PRINT_WARN("(%s): Repair will not impact cu performance\n",
- dev_name(&device->cdev->dev));
+ snprintf(service, BUFSIZE, "Repair will not impact cu "
+ "performance");
break;
case 0x03:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable node "
- "0x%x on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable node "
+ "0x%x on CU", sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable nodes "
- "(0x%x-0x%x) on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "nodes (0x%x-0x%x) on CU", sense->fmt.f71.md[1],
+ sense->fmt.f71.md[2]);
break;
case 0x04:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable cannel path "
- "0x%x on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "channel path 0x%x on CU",
+ sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable cannel paths "
- "(0x%x-0x%x) on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable cannel"
+ " paths (0x%x-0x%x) on CU",
+ sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
break;
case 0x05:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable device path "
- "0x%x on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable device"
+ " path 0x%x on CU", sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable device paths "
- "(0x%x-0x%x) on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable device"
+ " paths (0x%x-0x%x) on CU",
+ sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
break;
case 0x06:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable library path "
- "0x%x on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "library path 0x%x on CU",
+ sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable library paths "
- "(0x%x-0x%x) on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "library paths (0x%x-0x%x) on CU",
+ sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
break;
case 0x07:
- PRINT_WARN("(%s): Repair will disable access to CU\n",
- dev_name(&device->cdev->dev));
+ snprintf(service, BUFSIZE, "Repair will disable access to CU");
break;
default:
- PRINT_WARN("(%s): SIM ServiceMsg: 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.smc);
+ snprintf(service, BUFSIZE, "0x%02x",
+ sense->fmt.f71.smc);
}
+
+ dev_warn (&device->cdev->dev, "I/O subsystem information: exception"
+ " %s, service %s\n", exception, service);
+out_nomem:
+ kfree(exception);
+ kfree(service);
}
/*
@@ -1162,111 +1171,109 @@ static void
tape_3590_print_dev_sim_msg_f2(struct tape_device *device, struct irb *irb)
{
struct tape_3590_sense *sense;
+ char *exception, *service;
+
+ exception = kmalloc(BUFSIZE, GFP_ATOMIC);
+ service = kmalloc(BUFSIZE, GFP_ATOMIC);
+
+ if (!exception || !service)
+ goto out_nomem;
sense = (struct tape_3590_sense *) irb->ecw;
/* Exception Message */
switch (sense->fmt.f71.emc) {
case 0x01:
- PRINT_WARN("(%s): Effect of failure is unknown\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "Effect of failure is unknown");
break;
case 0x02:
- PRINT_WARN("(%s): DV Exception - no performance impact\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "DV Exception - no performance"
+ " impact");
break;
case 0x03:
- PRINT_WARN("(%s): DV Exception on channel interface 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "DV Exception on channel "
+ "interface 0x%02x", sense->fmt.f71.md[0]);
break;
case 0x04:
- PRINT_WARN("(%s): DV Exception on loader 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "DV Exception on loader 0x%02x",
+ sense->fmt.f71.md[0]);
break;
case 0x05:
- PRINT_WARN("(%s): DV Exception on message display 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "DV Exception on message display"
+ " 0x%02x", sense->fmt.f71.md[0]);
break;
case 0x06:
- PRINT_WARN("(%s): DV Exception in tape path\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "DV Exception in tape path");
break;
case 0x07:
- PRINT_WARN("(%s): DV Exception in drive\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "DV Exception in drive");
break;
default:
- PRINT_WARN("(%s): DSIM ExMsg: 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.emc);
+ snprintf(exception, BUFSIZE, "0x%02x",
+ sense->fmt.f71.emc);
}
/* Service Message */
switch (sense->fmt.f71.smc) {
case 0x01:
- PRINT_WARN("(%s): Repair impact is unknown\n",
- dev_name(&device->cdev->dev));
+ snprintf(service, BUFSIZE, "Repair impact is unknown");
break;
case 0x02:
- PRINT_WARN("(%s): Repair will not impact device performance\n",
- dev_name(&device->cdev->dev));
+ snprintf(service, BUFSIZE, "Repair will not impact device "
+ "performance");
break;
case 0x03:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable channel path "
- "0x%x on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "channel path 0x%x on DV",
+ sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable channel path "
- "(0x%x-0x%x) on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "channel path (0x%x-0x%x) on DV",
+ sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
break;
case 0x04:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable interface 0x%x "
- "on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "interface 0x%x on DV", sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable interfaces "
- "(0x%x-0x%x) on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "interfaces (0x%x-0x%x) on DV",
+ sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
break;
case 0x05:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable loader 0x%x "
- "on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable loader"
+ " 0x%x on DV", sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable loader "
- "(0x%x-0x%x) on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable loader"
+ " (0x%x-0x%x) on DV",
+ sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
break;
case 0x07:
- PRINT_WARN("(%s): Repair will disable access to DV\n",
- dev_name(&device->cdev->dev));
+ snprintf(service, BUFSIZE, "Repair will disable access to DV");
break;
case 0x08:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable message "
- "display 0x%x on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "message display 0x%x on DV",
+ sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable message "
- "displays (0x%x-0x%x) on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "message displays (0x%x-0x%x) on DV",
+ sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
break;
case 0x09:
- PRINT_WARN("(%s): Clean DV\n", dev_name(&device->cdev->dev));
+ snprintf(service, BUFSIZE, "Clean DV");
break;
default:
- PRINT_WARN("(%s): DSIM ServiceMsg: 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.smc);
+ snprintf(service, BUFSIZE, "0x%02x",
+ sense->fmt.f71.smc);
}
+
+ dev_warn (&device->cdev->dev, "Device subsystem information: exception"
+ " %s, service %s\n", exception, service);
+out_nomem:
+ kfree(exception);
+ kfree(service);
}
/*
@@ -1282,46 +1289,44 @@ tape_3590_print_era_msg(struct tape_device *device, struct irb *irb)
return;
if ((sense->mc > 0) && (sense->mc < TAPE_3590_MAX_MSG)) {
if (tape_3590_msg[sense->mc] != NULL)
- PRINT_WARN("(%s): %s\n", dev_name(&device->cdev->dev),
- tape_3590_msg[sense->mc]);
- else {
- PRINT_WARN("(%s): Message Code 0x%x\n",
- dev_name(&device->cdev->dev), sense->mc);
- }
+ dev_warn (&device->cdev->dev, "The tape unit has "
+ "issued sense message %s\n",
+ tape_3590_msg[sense->mc]);
+ else
+ dev_warn (&device->cdev->dev, "The tape unit has "
+ "issued an unknown sense message code 0x%x\n",
+ sense->mc);
return;
}
if (sense->mc == 0xf0) {
/* Standard Media Information Message */
- PRINT_WARN("(%s): MIM SEV=%i, MC=%02x, ES=%x/%x, "
- "RC=%02x-%04x-%02x\n", dev_name(&device->cdev->dev),
- sense->fmt.f70.sev, sense->mc,
- sense->fmt.f70.emc, sense->fmt.f70.smc,
- sense->fmt.f70.refcode, sense->fmt.f70.mid,
- sense->fmt.f70.fid);
+ dev_warn (&device->cdev->dev, "MIM SEV=%i, MC=%02x, ES=%x/%x, "
+ "RC=%02x-%04x-%02x\n", sense->fmt.f70.sev, sense->mc,
+ sense->fmt.f70.emc, sense->fmt.f70.smc,
+ sense->fmt.f70.refcode, sense->fmt.f70.mid,
+ sense->fmt.f70.fid);
tape_3590_print_mim_msg_f0(device, irb);
return;
}
if (sense->mc == 0xf1) {
/* Standard I/O Subsystem Service Information Message */
- PRINT_WARN("(%s): IOSIM SEV=%i, DEVTYPE=3590/%02x, "
- "MC=%02x, ES=%x/%x, REF=0x%04x-0x%04x-0x%04x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.sev,
- device->cdev->id.dev_model,
- sense->mc, sense->fmt.f71.emc,
- sense->fmt.f71.smc, sense->fmt.f71.refcode1,
- sense->fmt.f71.refcode2, sense->fmt.f71.refcode3);
+ dev_warn (&device->cdev->dev, "IOSIM SEV=%i, DEVTYPE=3590/%02x,"
+ " MC=%02x, ES=%x/%x, REF=0x%04x-0x%04x-0x%04x\n",
+ sense->fmt.f71.sev, device->cdev->id.dev_model,
+ sense->mc, sense->fmt.f71.emc, sense->fmt.f71.smc,
+ sense->fmt.f71.refcode1, sense->fmt.f71.refcode2,
+ sense->fmt.f71.refcode3);
tape_3590_print_io_sim_msg_f1(device, irb);
return;
}
if (sense->mc == 0xf2) {
/* Standard Device Service Information Message */
- PRINT_WARN("(%s): DEVSIM SEV=%i, DEVTYPE=3590/%02x, "
- "MC=%02x, ES=%x/%x, REF=0x%04x-0x%04x-0x%04x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.sev,
- device->cdev->id.dev_model,
- sense->mc, sense->fmt.f71.emc,
- sense->fmt.f71.smc, sense->fmt.f71.refcode1,
- sense->fmt.f71.refcode2, sense->fmt.f71.refcode3);
+ dev_warn (&device->cdev->dev, "DEVSIM SEV=%i, DEVTYPE=3590/%02x"
+ ", MC=%02x, ES=%x/%x, REF=0x%04x-0x%04x-0x%04x\n",
+ sense->fmt.f71.sev, device->cdev->id.dev_model,
+ sense->mc, sense->fmt.f71.emc, sense->fmt.f71.smc,
+ sense->fmt.f71.refcode1, sense->fmt.f71.refcode2,
+ sense->fmt.f71.refcode3);
tape_3590_print_dev_sim_msg_f2(device, irb);
return;
}
@@ -1329,8 +1334,8 @@ tape_3590_print_era_msg(struct tape_device *device, struct irb *irb)
/* Standard Library Service Information Message */
return;
}
- PRINT_WARN("(%s): Device Message(%x)\n",
- dev_name(&device->cdev->dev), sense->mc);
+ dev_warn (&device->cdev->dev, "The tape unit has issued an unknown "
+ "sense message code %x\n", sense->mc);
}
static int tape_3590_crypt_error(struct tape_device *device,
@@ -1355,9 +1360,8 @@ static int tape_3590_crypt_error(struct tape_device *device,
/* No connection to EKM */
return tape_3590_erp_basic(device, request, irb, -ENOTCONN);
- PRINT_ERR("(%s): Unable to get encryption key from EKM\n", bus_id);
- PRINT_ERR("(%s): CU=%02X DRIVE=%06X EKM=%02X:%04X\n", bus_id, cu_rc,
- drv_rc, ekm_rc1, ekm_rc2);
+ dev_err (&device->cdev->dev, "The tape unit failed to obtain the "
+ "encryption key from EKM\n");
return tape_3590_erp_basic(device, request, irb, -ENOKEY);
}
@@ -1443,8 +1447,6 @@ tape_3590_unit_check(struct tape_device *device, struct tape_request *request,
* print additional msg since default msg
* "device intervention" is not very meaningfull
*/
- PRINT_WARN("(%s): Tape operation when medium not loaded\n",
- dev_name(&device->cdev->dev));
tape_med_state_set(device, MS_UNLOADED);
tape_3590_schedule_work(device, TO_CRYPT_OFF);
return tape_3590_erp_basic(device, request, irb, -ENOMEDIUM);
@@ -1490,19 +1492,13 @@ tape_3590_unit_check(struct tape_device *device, struct tape_request *request,
return tape_3590_erp_basic(device, request, irb, -ENOMEDIUM);
case 0x6020:
- PRINT_WARN("(%s): Cartridge of wrong type ?\n",
- dev_name(&device->cdev->dev));
return tape_3590_erp_basic(device, request, irb, -EMEDIUMTYPE);
case 0x8011:
- PRINT_WARN("(%s): Another host has reserved the tape device\n",
- dev_name(&device->cdev->dev));
return tape_3590_erp_basic(device, request, irb, -EPERM);
case 0x8013:
- PRINT_WARN("(%s): Another host has privileged access to the "
- "tape device\n", dev_name(&device->cdev->dev));
- PRINT_WARN("(%s): To solve the problem unload the current "
- "cartridge!\n", dev_name(&device->cdev->dev));
+ dev_warn (&device->cdev->dev, "A different host has privileged"
+ " access to the tape unit\n");
return tape_3590_erp_basic(device, request, irb, -EPERM);
default:
return tape_3590_erp_basic(device, request, irb, -EIO);
@@ -1552,9 +1548,7 @@ tape_3590_irq(struct tape_device *device, struct tape_request *request,
}
DBF_EVENT(6, "xunknownirq\n");
- PRINT_ERR("Unexpected interrupt.\n");
- PRINT_ERR("Current op is: %s", tape_op_verbose[request->op]);
- tape_dump_sense(device, request, irb);
+ tape_dump_sense_dbf(device, request, irb);
return TAPE_IO_STOP;
}
@@ -1609,7 +1603,6 @@ tape_3590_setup_device(struct tape_device *device)
if (rc)
goto fail_rdc_data;
if (rdc_data->data[31] == 0x13) {
- PRINT_INFO("Device has crypto support\n");
data->crypt_info.capability |= TAPE390_CRYPT_SUPPORTED_MASK;
tape_3592_disable_crypt(device);
} else {
diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c
index ae18baf59f0..f32e89e7c4f 100644
--- a/drivers/s390/char/tape_block.c
+++ b/drivers/s390/char/tape_block.c
@@ -10,6 +10,8 @@
* Stefan Bader <shbader@de.ibm.com>
*/
+#define KMSG_COMPONENT "tape"
+
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/blkdev.h>
@@ -23,8 +25,6 @@
#include "tape.h"
-#define PRINTK_HEADER "TAPE_BLOCK: "
-
#define TAPEBLOCK_MAX_SEC 100
#define TAPEBLOCK_MIN_REQUEUE 3
@@ -279,8 +279,6 @@ tapeblock_cleanup_device(struct tape_device *device)
tape_put_device(device);
if (!device->blk_data.disk) {
- PRINT_ERR("(%s): No gendisk to clean up!\n",
- dev_name(&device->cdev->dev));
goto cleanup_queue;
}
@@ -314,7 +312,8 @@ tapeblock_revalidate_disk(struct gendisk *disk)
if (!device->blk_data.medium_changed)
return 0;
- PRINT_INFO("Detecting media size...\n");
+ dev_info(&device->cdev->dev, "Determining the size of the recorded "
+ "area...\n");
rc = tape_mtop(device, MTFSFM, 1);
if (rc)
return rc;
@@ -341,7 +340,8 @@ tapeblock_revalidate_disk(struct gendisk *disk)
device->bof = rc;
nr_of_blks -= rc;
- PRINT_INFO("Found %i blocks on media\n", nr_of_blks);
+ dev_info(&device->cdev->dev, "The size of the recorded area is %i "
+ "blocks\n", nr_of_blks);
set_capacity(device->blk_data.disk,
nr_of_blks*(TAPEBLOCK_HSEC_SIZE/512));
@@ -376,8 +376,8 @@ tapeblock_open(struct block_device *bdev, fmode_t mode)
if (device->required_tapemarks) {
DBF_EVENT(2, "TBLOCK: missing tapemarks\n");
- PRINT_ERR("TBLOCK: Refusing to open tape with missing"
- " end of file marks.\n");
+ dev_warn(&device->cdev->dev, "Opening the tape failed because"
+ " of missing end-of-file marks\n");
rc = -EPERM;
goto put_device;
}
@@ -452,7 +452,6 @@ tapeblock_ioctl(
rc = -EINVAL;
break;
default:
- PRINT_WARN("invalid ioctl 0x%x\n", command);
rc = -EINVAL;
}
@@ -474,7 +473,6 @@ tapeblock_init(void)
if (tapeblock_major == 0)
tapeblock_major = rc;
- PRINT_INFO("tape gets major %d for block device\n", tapeblock_major);
return 0;
}
diff --git a/drivers/s390/char/tape_char.c b/drivers/s390/char/tape_char.c
index be0ce2215c8..31566c55adf 100644
--- a/drivers/s390/char/tape_char.c
+++ b/drivers/s390/char/tape_char.c
@@ -24,8 +24,6 @@
#include "tape_std.h"
#include "tape_class.h"
-#define PRINTK_HEADER "TAPE_CHAR: "
-
#define TAPECHAR_MAJOR 0 /* get dynamic major */
/*
@@ -102,8 +100,6 @@ tapechar_check_idalbuffer(struct tape_device *device, size_t block_size)
if (block_size > MAX_BLOCKSIZE) {
DBF_EVENT(3, "Invalid blocksize (%zd > %d)\n",
block_size, MAX_BLOCKSIZE);
- PRINT_ERR("Invalid blocksize (%zd> %d)\n",
- block_size, MAX_BLOCKSIZE);
return -EINVAL;
}
@@ -485,7 +481,6 @@ tapechar_init (void)
return -1;
tapechar_major = MAJOR(dev);
- PRINT_INFO("tape gets major %d for character devices\n", MAJOR(dev));
return 0;
}
@@ -496,7 +491,5 @@ tapechar_init (void)
void
tapechar_exit(void)
{
- PRINT_INFO("tape releases major %d for character devices\n",
- tapechar_major);
unregister_chrdev_region(MKDEV(tapechar_major, 0), 256);
}
diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c
index f9bb51fa7f5..08c09d3503c 100644
--- a/drivers/s390/char/tape_core.c
+++ b/drivers/s390/char/tape_core.c
@@ -11,6 +11,7 @@
* Stefan Bader <shbader@de.ibm.com>
*/
+#define KMSG_COMPONENT "tape"
#include <linux/module.h>
#include <linux/init.h> // for kernel parameters
#include <linux/kmod.h> // for requesting modules
@@ -25,7 +26,6 @@
#include "tape.h"
#include "tape_std.h"
-#define PRINTK_HEADER "TAPE_CORE: "
#define LONG_BUSY_TIMEOUT 180 /* seconds */
static void __tape_do_irq (struct ccw_device *, unsigned long, struct irb *);
@@ -214,13 +214,13 @@ tape_med_state_set(struct tape_device *device, enum tape_medium_state newstate)
switch(newstate){
case MS_UNLOADED:
device->tape_generic_status |= GMT_DR_OPEN(~0);
- PRINT_INFO("(%s): Tape is unloaded\n",
- dev_name(&device->cdev->dev));
+ dev_info(&device->cdev->dev, "The tape cartridge has been "
+ "successfully unloaded\n");
break;
case MS_LOADED:
device->tape_generic_status &= ~GMT_DR_OPEN(~0);
- PRINT_INFO("(%s): Tape has been mounted\n",
- dev_name(&device->cdev->dev));
+ dev_info(&device->cdev->dev, "A tape cartridge has been "
+ "mounted\n");
break;
default:
// print nothing
@@ -333,7 +333,6 @@ tape_generic_online(struct tape_device *device,
/* Let the discipline have a go at the device. */
device->discipline = discipline;
if (!try_module_get(discipline->owner)) {
- PRINT_ERR("Cannot get module. Module gone.\n");
return -EINVAL;
}
@@ -391,7 +390,6 @@ int
tape_generic_offline(struct tape_device *device)
{
if (!device) {
- PRINT_ERR("tape_generic_offline: no such device\n");
return -ENODEV;
}
@@ -413,9 +411,6 @@ tape_generic_offline(struct tape_device *device)
DBF_EVENT(3, "(%08x): Set offline failed "
"- drive in use.\n",
device->cdev_id);
- PRINT_WARN("(%s): Set offline failed "
- "- drive in use.\n",
- dev_name(&device->cdev->dev));
spin_unlock_irq(get_ccwdev_lock(device->cdev));
return -EBUSY;
}
@@ -435,14 +430,11 @@ tape_alloc_device(void)
device = kzalloc(sizeof(struct tape_device), GFP_KERNEL);
if (device == NULL) {
DBF_EXCEPTION(2, "ti:no mem\n");
- PRINT_INFO ("can't allocate memory for "
- "tape info structure\n");
return ERR_PTR(-ENOMEM);
}
device->modeset_byte = kmalloc(1, GFP_KERNEL | GFP_DMA);
if (device->modeset_byte == NULL) {
DBF_EXCEPTION(2, "ti:no mem\n");
- PRINT_INFO("can't allocate memory for modeset byte\n");
kfree(device);
return ERR_PTR(-ENOMEM);
}
@@ -490,7 +482,6 @@ tape_put_device(struct tape_device *device)
} else {
if (remain < 0) {
DBF_EVENT(4, "put device without reference\n");
- PRINT_ERR("put device without reference\n");
} else {
DBF_EVENT(4, "tape_free_device(%p)\n", device);
kfree(device->modeset_byte);
@@ -538,8 +529,6 @@ tape_generic_probe(struct ccw_device *cdev)
ret = sysfs_create_group(&cdev->dev.kobj, &tape_attr_group);
if (ret) {
tape_put_device(device);
- PRINT_ERR("probe failed for tape device %s\n",
- dev_name(&cdev->dev));
return ret;
}
cdev->dev.driver_data = device;
@@ -547,7 +536,6 @@ tape_generic_probe(struct ccw_device *cdev)
device->cdev = cdev;
ccw_device_get_id(cdev, &dev_id);
device->cdev_id = devid_to_int(&dev_id);
- PRINT_INFO("tape device %s found\n", dev_name(&cdev->dev));
return ret;
}
@@ -584,7 +572,6 @@ tape_generic_remove(struct ccw_device *cdev)
device = cdev->dev.driver_data;
if (!device) {
- PRINT_ERR("No device pointer in tape_generic_remove!\n");
return;
}
DBF_LH(3, "(%08x): tape_generic_remove(%p)\n", device->cdev_id, cdev);
@@ -615,10 +602,8 @@ tape_generic_remove(struct ccw_device *cdev)
*/
DBF_EVENT(3, "(%08x): Drive in use vanished!\n",
device->cdev_id);
- PRINT_WARN("(%s): Drive in use vanished - "
- "expect trouble!\n",
- dev_name(&device->cdev->dev));
- PRINT_WARN("State was %i\n", device->tape_state);
+ dev_warn(&device->cdev->dev, "A tape unit was detached"
+ " while in use\n");
tape_state_set(device, TS_NOT_OPER);
__tape_discard_requests(device);
spin_unlock_irq(get_ccwdev_lock(device->cdev));
@@ -639,8 +624,7 @@ tape_alloc_request(int cplength, int datasize)
{
struct tape_request *request;
- if (datasize > PAGE_SIZE || (cplength*sizeof(struct ccw1)) > PAGE_SIZE)
- BUG();
+ BUG_ON(datasize > PAGE_SIZE || (cplength*sizeof(struct ccw1)) > PAGE_SIZE);
DBF_LH(6, "tape_alloc_request(%d, %d)\n", cplength, datasize);
@@ -797,8 +781,7 @@ static void tape_long_busy_timeout(unsigned long data)
device = (struct tape_device *) data;
spin_lock_irq(get_ccwdev_lock(device->cdev));
request = list_entry(device->req_queue.next, struct tape_request, list);
- if (request->status != TAPE_REQUEST_LONG_BUSY)
- BUG();
+ BUG_ON(request->status != TAPE_REQUEST_LONG_BUSY);
DBF_LH(6, "%08x: Long busy timeout.\n", device->cdev_id);
__tape_start_next_request(device);
device->lb_timeout.data = (unsigned long) tape_put_device(device);
@@ -830,30 +813,6 @@ __tape_end_request(
}
/*
- * Write sense data to console/dbf
- */
-void
-tape_dump_sense(struct tape_device* device, struct tape_request *request,
- struct irb *irb)
-{
- unsigned int *sptr;
-
- PRINT_INFO("-------------------------------------------------\n");
- PRINT_INFO("DSTAT : %02x CSTAT: %02x CPA: %04x\n",
- irb->scsw.cmd.dstat, irb->scsw.cmd.cstat, irb->scsw.cmd.cpa);
- PRINT_INFO("DEVICE: %s\n", dev_name(&device->cdev->dev));
- if (request != NULL)
- PRINT_INFO("OP : %s\n", tape_op_verbose[request->op]);
-
- sptr = (unsigned int *) irb->ecw;
- PRINT_INFO("Sense data: %08X %08X %08X %08X \n",
- sptr[0], sptr[1], sptr[2], sptr[3]);
- PRINT_INFO("Sense data: %08X %08X %08X %08X \n",
- sptr[4], sptr[5], sptr[6], sptr[7]);
- PRINT_INFO("--------------------------------------------------\n");
-}
-
-/*
* Write sense data to dbf
*/
void
@@ -1051,8 +1010,6 @@ __tape_do_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
device = (struct tape_device *) cdev->dev.driver_data;
if (device == NULL) {
- PRINT_ERR("could not get device structure for %s "
- "in interrupt\n", dev_name(&cdev->dev));
return;
}
request = (struct tape_request *) intparm;
@@ -1064,13 +1021,13 @@ __tape_do_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
/* FIXME: What to do with the request? */
switch (PTR_ERR(irb)) {
case -ETIMEDOUT:
- PRINT_WARN("(%s): Request timed out\n",
+ DBF_LH(1, "(%s): Request timed out\n",
dev_name(&cdev->dev));
case -EIO:
__tape_end_request(device, request, -EIO);
break;
default:
- PRINT_ERR("(%s): Unexpected i/o error %li\n",
+ DBF_LH(1, "(%s): Unexpected i/o error %li\n",
dev_name(&cdev->dev),
PTR_ERR(irb));
}
@@ -1182,8 +1139,6 @@ __tape_do_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
default:
if (rc > 0) {
DBF_EVENT(6, "xunknownrc\n");
- PRINT_ERR("Invalid return code from discipline "
- "interrupt function.\n");
__tape_end_request(device, request, -EIO);
} else {
__tape_end_request(device, request, rc);
@@ -1323,7 +1278,6 @@ EXPORT_SYMBOL(tape_state_set);
EXPORT_SYMBOL(tape_med_state_set);
EXPORT_SYMBOL(tape_alloc_request);
EXPORT_SYMBOL(tape_free_request);
-EXPORT_SYMBOL(tape_dump_sense);
EXPORT_SYMBOL(tape_dump_sense_dbf);
EXPORT_SYMBOL(tape_do_io);
EXPORT_SYMBOL(tape_do_io_async);
diff --git a/drivers/s390/char/tape_proc.c b/drivers/s390/char/tape_proc.c
index 8a376af926a..202f4213293 100644
--- a/drivers/s390/char/tape_proc.c
+++ b/drivers/s390/char/tape_proc.c
@@ -20,8 +20,6 @@
#include "tape.h"
-#define PRINTK_HEADER "TAPE_PROC: "
-
static const char *tape_med_st_verbose[MS_SIZE] =
{
[MS_UNKNOWN] = "UNKNOWN ",
@@ -128,7 +126,6 @@ tape_proc_init(void)
proc_create("tapedevices", S_IFREG | S_IRUGO | S_IWUSR, NULL,
&tape_proc_ops);
if (tape_proc_devices == NULL) {
- PRINT_WARN("tape: Cannot register procfs entry tapedevices\n");
return;
}
}
diff --git a/drivers/s390/char/tape_std.c b/drivers/s390/char/tape_std.c
index 5bd573d144d..1a9420ba518 100644
--- a/drivers/s390/char/tape_std.c
+++ b/drivers/s390/char/tape_std.c
@@ -26,8 +26,6 @@
#include "tape.h"
#include "tape_std.h"
-#define PRINTK_HEADER "TAPE_STD: "
-
/*
* tape_std_assign
*/
@@ -39,16 +37,15 @@ tape_std_assign_timeout(unsigned long data)
int rc;
request = (struct tape_request *) data;
- if ((device = request->device) == NULL)
- BUG();
+ device = request->device;
+ BUG_ON(!device);
DBF_EVENT(3, "%08x: Assignment timeout. Device busy.\n",
device->cdev_id);
rc = tape_cancel_io(device, request);
if(rc)
- PRINT_ERR("(%s): Assign timeout: Cancel failed with rc = %i\n",
+ DBF_EVENT(3, "(%s): Assign timeout: Cancel failed with rc = %i\n",
dev_name(&device->cdev->dev), rc);
-
}
int
@@ -82,8 +79,6 @@ tape_std_assign(struct tape_device *device)
del_timer(&timeout);
if (rc != 0) {
- PRINT_WARN("%s: assign failed - device might be busy\n",
- dev_name(&device->cdev->dev));
DBF_EVENT(3, "%08x: assign failed - device might be busy\n",
device->cdev_id);
} else {
@@ -105,8 +100,6 @@ tape_std_unassign (struct tape_device *device)
if (device->tape_state == TS_NOT_OPER) {
DBF_EVENT(3, "(%08x): Can't unassign device\n",
device->cdev_id);
- PRINT_WARN("(%s): Can't unassign device - device gone\n",
- dev_name(&device->cdev->dev));
return -EIO;
}
@@ -120,8 +113,6 @@ tape_std_unassign (struct tape_device *device)
if ((rc = tape_do_io(device, request)) != 0) {
DBF_EVENT(3, "%08x: Unassign failed\n", device->cdev_id);
- PRINT_WARN("%s: Unassign failed\n",
- dev_name(&device->cdev->dev));
} else {
DBF_EVENT(3, "%08x: Tape unassigned\n", device->cdev_id);
}
@@ -242,8 +233,6 @@ tape_std_mtsetblk(struct tape_device *device, int count)
if (count > MAX_BLOCKSIZE) {
DBF_EVENT(3, "Invalid block size (%d > %d) given.\n",
count, MAX_BLOCKSIZE);
- PRINT_ERR("Invalid block size (%d > %d) given.\n",
- count, MAX_BLOCKSIZE);
return -EINVAL;
}
@@ -633,14 +622,6 @@ tape_std_mtcompression(struct tape_device *device, int mt_count)
if (mt_count < 0 || mt_count > 1) {
DBF_EXCEPTION(6, "xcom parm\n");
- if (*device->modeset_byte & 0x08)
- PRINT_INFO("(%s) Compression is currently on\n",
- dev_name(&device->cdev->dev));
- else
- PRINT_INFO("(%s) Compression is currently off\n",
- dev_name(&device->cdev->dev));
- PRINT_INFO("Use 1 to switch compression on, 0 to "
- "switch it off\n");
return -EINVAL;
}
request = tape_alloc_request(2, 0);
diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
index eefc6611412..1bbae433fbd 100644
--- a/drivers/s390/char/zcore.c
+++ b/drivers/s390/char/zcore.c
@@ -5,7 +5,7 @@
*
* For more information please refer to Documentation/s390/zfcpdump.txt
*
- * Copyright IBM Corp. 2003,2007
+ * Copyright IBM Corp. 2003,2008
* Author(s): Michael Holzheu
*/
@@ -24,6 +24,7 @@
#include <asm/debug.h>
#include <asm/processor.h>
#include <asm/irqflags.h>
+#include <asm/checksum.h>
#include "sclp.h"
#define TRACE(x...) debug_sprintf_event(zcore_dbf, 1, x)
@@ -48,12 +49,19 @@ struct sys_info {
union save_area lc_mask;
};
+struct ipib_info {
+ unsigned long ipib;
+ u32 checksum;
+} __attribute__((packed));
+
static struct sys_info sys_info;
static struct debug_info *zcore_dbf;
static int hsa_available;
static struct dentry *zcore_dir;
static struct dentry *zcore_file;
static struct dentry *zcore_memmap_file;
+static struct dentry *zcore_reipl_file;
+static struct ipl_parameter_block *ipl_block;
/*
* Copy memory from HSA to kernel or user memory (not reentrant):
@@ -527,6 +535,33 @@ static const struct file_operations zcore_memmap_fops = {
.release = zcore_memmap_release,
};
+static ssize_t zcore_reipl_write(struct file *filp, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ if (ipl_block) {
+ diag308(DIAG308_SET, ipl_block);
+ diag308(DIAG308_IPL, NULL);
+ }
+ return count;
+}
+
+static int zcore_reipl_open(struct inode *inode, struct file *filp)
+{
+ return 0;
+}
+
+static int zcore_reipl_release(struct inode *inode, struct file *filp)
+{
+ return 0;
+}
+
+static const struct file_operations zcore_reipl_fops = {
+ .owner = THIS_MODULE,
+ .write = zcore_reipl_write,
+ .open = zcore_reipl_open,
+ .release = zcore_reipl_release,
+};
+
static void __init set_s390_lc_mask(union save_area *map)
{
@@ -645,6 +680,40 @@ static int __init zcore_header_init(int arch, struct zcore_header *hdr)
return 0;
}
+/*
+ * Provide IPL parameter information block from either HSA or memory
+ * for future reipl
+ */
+static int __init zcore_reipl_init(void)
+{
+ struct ipib_info ipib_info;
+ int rc;
+
+ rc = memcpy_hsa_kernel(&ipib_info, __LC_DUMP_REIPL, sizeof(ipib_info));
+ if (rc)
+ return rc;
+ if (ipib_info.ipib == 0)
+ return 0;
+ ipl_block = (void *) __get_free_page(GFP_KERNEL);
+ if (!ipl_block)
+ return -ENOMEM;
+ if (ipib_info.ipib < ZFCPDUMP_HSA_SIZE)
+ rc = memcpy_hsa_kernel(ipl_block, ipib_info.ipib, PAGE_SIZE);
+ else
+ rc = memcpy_real(ipl_block, ipib_info.ipib, PAGE_SIZE);
+ if (rc) {
+ free_page((unsigned long) ipl_block);
+ return rc;
+ }
+ if (csum_partial(ipl_block, ipl_block->hdr.len, 0) !=
+ ipib_info.checksum) {
+ TRACE("Checksum does not match\n");
+ free_page((unsigned long) ipl_block);
+ ipl_block = NULL;
+ }
+ return 0;
+}
+
static int __init zcore_init(void)
{
unsigned char arch;
@@ -690,6 +759,10 @@ static int __init zcore_init(void)
if (rc)
goto fail;
+ rc = zcore_reipl_init();
+ if (rc)
+ goto fail;
+
zcore_dir = debugfs_create_dir("zcore" , NULL);
if (!zcore_dir) {
rc = -ENOMEM;
@@ -707,9 +780,17 @@ static int __init zcore_init(void)
rc = -ENOMEM;
goto fail_file;
}
+ zcore_reipl_file = debugfs_create_file("reipl", S_IRUSR, zcore_dir,
+ NULL, &zcore_reipl_fops);
+ if (!zcore_reipl_file) {
+ rc = -ENOMEM;
+ goto fail_memmap_file;
+ }
hsa_available = 1;
return 0;
+fail_memmap_file:
+ debugfs_remove(zcore_memmap_file);
fail_file:
debugfs_remove(zcore_file);
fail_dir:
@@ -723,10 +804,15 @@ static void __exit zcore_exit(void)
{
debug_unregister(zcore_dbf);
sclp_sdias_exit();
+ free_page((unsigned long) ipl_block);
+ debugfs_remove(zcore_reipl_file);
+ debugfs_remove(zcore_memmap_file);
+ debugfs_remove(zcore_file);
+ debugfs_remove(zcore_dir);
diag308(DIAG308_REL_HSA, NULL);
}
-MODULE_AUTHOR("Copyright IBM Corp. 2003,2007");
+MODULE_AUTHOR("Copyright IBM Corp. 2003,2008");
MODULE_DESCRIPTION("zcore module for zfcpdump support");
MODULE_LICENSE("GPL");
diff --git a/drivers/s390/cio/Makefile b/drivers/s390/cio/Makefile
index bd79bd16539..adb3dd30152 100644
--- a/drivers/s390/cio/Makefile
+++ b/drivers/s390/cio/Makefile
@@ -3,7 +3,7 @@
#
obj-y += airq.o blacklist.o chsc.o cio.o css.o chp.o idset.o isc.o scsw.o \
- fcx.o itcw.o
+ fcx.o itcw.o crw.o
ccw_device-objs += device.o device_fsm.o device_ops.o
ccw_device-objs += device_id.o device_pgid.o device_status.o
obj-y += ccw_device.o cmf.o
diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c
index fe6cea15bba..65d2e769dfa 100644
--- a/drivers/s390/cio/airq.c
+++ b/drivers/s390/cio/airq.c
@@ -34,8 +34,8 @@ struct airq_t {
void *drv_data;
};
-static union indicator_t indicators[MAX_ISC];
-static struct airq_t *airqs[MAX_ISC][NR_AIRQS];
+static union indicator_t indicators[MAX_ISC+1];
+static struct airq_t *airqs[MAX_ISC+1][NR_AIRQS];
static int register_airq(struct airq_t *airq, u8 isc)
{
@@ -133,6 +133,8 @@ void do_adapter_IO(u8 isc)
while (word) {
if (word & INDICATOR_MASK) {
airq = airqs[isc][i];
+ /* Make sure gcc reads from airqs only once. */
+ barrier();
if (likely(airq))
airq->handler(&indicators[isc].byte[i],
airq->drv_data);
diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c
index fe00be3675c..6565f027791 100644
--- a/drivers/s390/cio/blacklist.c
+++ b/drivers/s390/cio/blacklist.c
@@ -336,8 +336,7 @@ cio_ignore_write(struct file *file, const char __user *user_buf,
size_t user_len, loff_t *offset)
{
char *buf;
- size_t i;
- ssize_t rc, ret;
+ ssize_t rc, ret, i;
if (*offset)
return -EINVAL;
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index b91c1719b07..22ce765d537 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -315,16 +315,32 @@ error:
}
EXPORT_SYMBOL(ccwgroup_create_from_string);
-static int __init
-init_ccwgroup (void)
+static int ccwgroup_notifier(struct notifier_block *nb, unsigned long action,
+ void *data);
+
+static struct notifier_block ccwgroup_nb = {
+ .notifier_call = ccwgroup_notifier
+};
+
+static int __init init_ccwgroup(void)
{
- return bus_register (&ccwgroup_bus_type);
+ int ret;
+
+ ret = bus_register(&ccwgroup_bus_type);
+ if (ret)
+ return ret;
+
+ ret = bus_register_notifier(&ccwgroup_bus_type, &ccwgroup_nb);
+ if (ret)
+ bus_unregister(&ccwgroup_bus_type);
+
+ return ret;
}
-static void __exit
-cleanup_ccwgroup (void)
+static void __exit cleanup_ccwgroup(void)
{
- bus_unregister (&ccwgroup_bus_type);
+ bus_unregister_notifier(&ccwgroup_bus_type, &ccwgroup_nb);
+ bus_unregister(&ccwgroup_bus_type);
}
module_init(init_ccwgroup);
@@ -392,27 +408,28 @@ ccwgroup_online_store (struct device *dev, struct device_attribute *attr, const
unsigned long value;
int ret;
- gdev = to_ccwgroupdev(dev);
if (!dev->driver)
- return count;
+ return -ENODEV;
+
+ gdev = to_ccwgroupdev(dev);
+ gdrv = to_ccwgroupdrv(dev->driver);
- gdrv = to_ccwgroupdrv (gdev->dev.driver);
if (!try_module_get(gdrv->owner))
return -EINVAL;
ret = strict_strtoul(buf, 0, &value);
if (ret)
goto out;
- ret = count;
+
if (value == 1)
- ccwgroup_set_online(gdev);
+ ret = ccwgroup_set_online(gdev);
else if (value == 0)
- ccwgroup_set_offline(gdev);
+ ret = ccwgroup_set_offline(gdev);
else
ret = -EINVAL;
out:
module_put(gdrv->owner);
- return ret;
+ return (ret == 0) ? count : ret;
}
static ssize_t
@@ -454,13 +471,18 @@ ccwgroup_remove (struct device *dev)
struct ccwgroup_device *gdev;
struct ccwgroup_driver *gdrv;
+ device_remove_file(dev, &dev_attr_online);
+ device_remove_file(dev, &dev_attr_ungroup);
+
+ if (!dev->driver)
+ return 0;
+
gdev = to_ccwgroupdev(dev);
gdrv = to_ccwgroupdrv(dev->driver);
- device_remove_file(dev, &dev_attr_online);
-
- if (gdrv && gdrv->remove)
+ if (gdrv->remove)
gdrv->remove(gdev);
+
return 0;
}
@@ -469,9 +491,13 @@ static void ccwgroup_shutdown(struct device *dev)
struct ccwgroup_device *gdev;
struct ccwgroup_driver *gdrv;
+ if (!dev->driver)
+ return;
+
gdev = to_ccwgroupdev(dev);
gdrv = to_ccwgroupdrv(dev->driver);
- if (gdrv && gdrv->shutdown)
+
+ if (gdrv->shutdown)
gdrv->shutdown(gdev);
}
@@ -484,6 +510,19 @@ static struct bus_type ccwgroup_bus_type = {
.shutdown = ccwgroup_shutdown,
};
+
+static int ccwgroup_notifier(struct notifier_block *nb, unsigned long action,
+ void *data)
+{
+ struct device *dev = data;
+
+ if (action == BUS_NOTIFY_UNBIND_DRIVER)
+ device_schedule_callback(dev, ccwgroup_ungroup_callback);
+
+ return NOTIFY_OK;
+}
+
+
/**
* ccwgroup_driver_register() - register a ccw group driver
* @cdriver: driver to be registered
diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c
index 1246f61a533..3e5f304ad88 100644
--- a/drivers/s390/cio/chp.c
+++ b/drivers/s390/cio/chp.c
@@ -17,8 +17,8 @@
#include <linux/errno.h>
#include <asm/chpid.h>
#include <asm/sclp.h>
+#include <asm/crw.h>
-#include "../s390mach.h"
#include "cio.h"
#include "css.h"
#include "ioasm.h"
@@ -706,12 +706,12 @@ static int __init chp_init(void)
struct chp_id chpid;
int ret;
- ret = s390_register_crw_handler(CRW_RSC_CPATH, chp_process_crw);
+ ret = crw_register_handler(CRW_RSC_CPATH, chp_process_crw);
if (ret)
return ret;
chp_wq = create_singlethread_workqueue("cio_chp");
if (!chp_wq) {
- s390_unregister_crw_handler(CRW_RSC_CPATH);
+ crw_unregister_handler(CRW_RSC_CPATH);
return -ENOMEM;
}
INIT_WORK(&cfg_work, cfg_func);
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index ebab6ea4659..883f16f96f2 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -19,8 +19,8 @@
#include <asm/cio.h>
#include <asm/chpid.h>
#include <asm/chsc.h>
+#include <asm/crw.h>
-#include "../s390mach.h"
#include "css.h"
#include "cio.h"
#include "cio_debug.h"
@@ -589,6 +589,7 @@ __chsc_do_secm(struct channel_subsystem *css, int enable, void *page)
case 0x0102:
case 0x0103:
ret = -EINVAL;
+ break;
default:
ret = chsc_error_from_response(secm_area->response.code);
}
@@ -820,7 +821,7 @@ int __init chsc_alloc_sei_area(void)
"chsc machine checks!\n");
return -ENOMEM;
}
- ret = s390_register_crw_handler(CRW_RSC_CSS, chsc_process_crw);
+ ret = crw_register_handler(CRW_RSC_CSS, chsc_process_crw);
if (ret)
kfree(sei_page);
return ret;
@@ -828,7 +829,7 @@ int __init chsc_alloc_sei_area(void)
void __init chsc_free_sei_area(void)
{
- s390_unregister_crw_handler(CRW_RSC_CSS);
+ crw_unregister_handler(CRW_RSC_CSS);
kfree(sei_page);
}
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 659f8a79165..2aebb982304 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -30,6 +30,8 @@
#include <asm/isc.h>
#include <asm/cpu.h>
#include <asm/fcx.h>
+#include <asm/nmi.h>
+#include <asm/crw.h>
#include "cio.h"
#include "css.h"
#include "chsc.h"
@@ -38,7 +40,6 @@
#include "blacklist.h"
#include "cio_debug.h"
#include "chp.h"
-#include "../s390mach.h"
debug_info_t *cio_debug_msg_id;
debug_info_t *cio_debug_trace_id;
@@ -471,6 +472,7 @@ EXPORT_SYMBOL_GPL(cio_enable_subchannel);
int cio_disable_subchannel(struct subchannel *sch)
{
char dbf_txt[15];
+ int retry;
int ret;
CIO_TRACE_EVENT (2, "dissch");
@@ -481,16 +483,17 @@ int cio_disable_subchannel(struct subchannel *sch)
if (cio_update_schib(sch))
return -ENODEV;
- if (scsw_actl(&sch->schib.scsw) != 0)
- /*
- * the disable function must not be called while there are
- * requests pending for completion !
- */
- return -EBUSY;
-
sch->config.ena = 0;
- ret = cio_commit_config(sch);
+ for (retry = 0; retry < 3; retry++) {
+ ret = cio_commit_config(sch);
+ if (ret == -EBUSY) {
+ struct irb irb;
+ if (tsch(sch->schid, &irb) != 0)
+ break;
+ } else
+ break;
+ }
sprintf (dbf_txt, "ret:%d", ret);
CIO_TRACE_EVENT (2, dbf_txt);
return ret;
diff --git a/drivers/s390/cio/crw.c b/drivers/s390/cio/crw.c
new file mode 100644
index 00000000000..d157665d0e7
--- /dev/null
+++ b/drivers/s390/cio/crw.c
@@ -0,0 +1,159 @@
+/*
+ * Channel report handling code
+ *
+ * Copyright IBM Corp. 2000,2009
+ * Author(s): Ingo Adlung <adlung@de.ibm.com>,
+ * Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ * Cornelia Huck <cornelia.huck@de.ibm.com>,
+ * Heiko Carstens <heiko.carstens@de.ibm.com>,
+ */
+
+#include <linux/semaphore.h>
+#include <linux/mutex.h>
+#include <linux/kthread.h>
+#include <linux/init.h>
+#include <asm/crw.h>
+
+static struct semaphore crw_semaphore;
+static DEFINE_MUTEX(crw_handler_mutex);
+static crw_handler_t crw_handlers[NR_RSCS];
+
+/**
+ * crw_register_handler() - register a channel report word handler
+ * @rsc: reporting source code to handle
+ * @handler: handler to be registered
+ *
+ * Returns %0 on success and a negative error value otherwise.
+ */
+int crw_register_handler(int rsc, crw_handler_t handler)
+{
+ int rc = 0;
+
+ if ((rsc < 0) || (rsc >= NR_RSCS))
+ return -EINVAL;
+ mutex_lock(&crw_handler_mutex);
+ if (crw_handlers[rsc])
+ rc = -EBUSY;
+ else
+ crw_handlers[rsc] = handler;
+ mutex_unlock(&crw_handler_mutex);
+ return rc;
+}
+
+/**
+ * crw_unregister_handler() - unregister a channel report word handler
+ * @rsc: reporting source code to handle
+ */
+void crw_unregister_handler(int rsc)
+{
+ if ((rsc < 0) || (rsc >= NR_RSCS))
+ return;
+ mutex_lock(&crw_handler_mutex);
+ crw_handlers[rsc] = NULL;
+ mutex_unlock(&crw_handler_mutex);
+}
+
+/*
+ * Retrieve CRWs and call function to handle event.
+ */
+static int crw_collect_info(void *unused)
+{
+ struct crw crw[2];
+ int ccode;
+ unsigned int chain;
+ int ignore;
+
+repeat:
+ ignore = down_interruptible(&crw_semaphore);
+ chain = 0;
+ while (1) {
+ crw_handler_t handler;
+
+ if (unlikely(chain > 1)) {
+ struct crw tmp_crw;
+
+ printk(KERN_WARNING"%s: Code does not support more "
+ "than two chained crws; please report to "
+ "linux390@de.ibm.com!\n", __func__);
+ ccode = stcrw(&tmp_crw);
+ printk(KERN_WARNING"%s: crw reports slct=%d, oflw=%d, "
+ "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n",
+ __func__, tmp_crw.slct, tmp_crw.oflw,
+ tmp_crw.chn, tmp_crw.rsc, tmp_crw.anc,
+ tmp_crw.erc, tmp_crw.rsid);
+ printk(KERN_WARNING"%s: This was crw number %x in the "
+ "chain\n", __func__, chain);
+ if (ccode != 0)
+ break;
+ chain = tmp_crw.chn ? chain + 1 : 0;
+ continue;
+ }
+ ccode = stcrw(&crw[chain]);
+ if (ccode != 0)
+ break;
+ printk(KERN_DEBUG "crw_info : CRW reports slct=%d, oflw=%d, "
+ "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n",
+ crw[chain].slct, crw[chain].oflw, crw[chain].chn,
+ crw[chain].rsc, crw[chain].anc, crw[chain].erc,
+ crw[chain].rsid);
+ /* Check for overflows. */
+ if (crw[chain].oflw) {
+ int i;
+
+ pr_debug("%s: crw overflow detected!\n", __func__);
+ mutex_lock(&crw_handler_mutex);
+ for (i = 0; i < NR_RSCS; i++) {
+ if (crw_handlers[i])
+ crw_handlers[i](NULL, NULL, 1);
+ }
+ mutex_unlock(&crw_handler_mutex);
+ chain = 0;
+ continue;
+ }
+ if (crw[0].chn && !chain) {
+ chain++;
+ continue;
+ }
+ mutex_lock(&crw_handler_mutex);
+ handler = crw_handlers[crw[chain].rsc];
+ if (handler)
+ handler(&crw[0], chain ? &crw[1] : NULL, 0);
+ mutex_unlock(&crw_handler_mutex);
+ /* chain is always 0 or 1 here. */
+ chain = crw[chain].chn ? chain + 1 : 0;
+ }
+ goto repeat;
+ return 0;
+}
+
+void crw_handle_channel_report(void)
+{
+ up(&crw_semaphore);
+}
+
+/*
+ * Separate initcall needed for semaphore initialization since
+ * crw_handle_channel_report might be called before crw_machine_check_init.
+ */
+static int __init crw_init_semaphore(void)
+{
+ init_MUTEX_LOCKED(&crw_semaphore);
+ return 0;
+}
+pure_initcall(crw_init_semaphore);
+
+/*
+ * Machine checks for the channel subsystem must be enabled
+ * after the channel subsystem is initialized
+ */
+static int __init crw_machine_check_init(void)
+{
+ struct task_struct *task;
+
+ task = kthread_run(crw_collect_info, NULL, "kmcheck");
+ if (IS_ERR(task))
+ return PTR_ERR(task);
+ ctl_set_bit(14, 28); /* enable channel report MCH */
+ return 0;
+}
+device_initcall(crw_machine_check_init);
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 427d11d8806..0085d890179 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -18,8 +18,8 @@
#include <linux/list.h>
#include <linux/reboot.h>
#include <asm/isc.h>
+#include <asm/crw.h>
-#include "../s390mach.h"
#include "css.h"
#include "cio.h"
#include "cio_debug.h"
@@ -83,6 +83,25 @@ static int call_fn_unknown_sch(struct subchannel_id schid, void *data)
return rc;
}
+static int call_fn_all_sch(struct subchannel_id schid, void *data)
+{
+ struct cb_data *cb = data;
+ struct subchannel *sch;
+ int rc = 0;
+
+ sch = get_subchannel_by_schid(schid);
+ if (sch) {
+ if (cb->fn_known_sch)
+ rc = cb->fn_known_sch(sch, cb->data);
+ put_device(&sch->dev);
+ } else {
+ if (cb->fn_unknown_sch)
+ rc = cb->fn_unknown_sch(schid, cb->data);
+ }
+
+ return rc;
+}
+
int for_each_subchannel_staged(int (*fn_known)(struct subchannel *, void *),
int (*fn_unknown)(struct subchannel_id,
void *), void *data)
@@ -90,13 +109,17 @@ int for_each_subchannel_staged(int (*fn_known)(struct subchannel *, void *),
struct cb_data cb;
int rc;
- cb.set = idset_sch_new();
- if (!cb.set)
- return -ENOMEM;
- idset_fill(cb.set);
cb.data = data;
cb.fn_known_sch = fn_known;
cb.fn_unknown_sch = fn_unknown;
+
+ cb.set = idset_sch_new();
+ if (!cb.set)
+ /* fall back to brute force scanning in case of oom */
+ return for_each_subchannel(call_fn_all_sch, &cb);
+
+ idset_fill(cb.set);
+
/* Process registered subchannels. */
rc = bus_for_each_dev(&css_bus_type, NULL, &cb, call_fn_known_sch);
if (rc)
@@ -510,6 +533,17 @@ static int reprobe_subchannel(struct subchannel_id schid, void *data)
return ret;
}
+static void reprobe_after_idle(struct work_struct *unused)
+{
+ /* Make sure initial subchannel scan is done. */
+ wait_event(ccw_device_init_wq,
+ atomic_read(&ccw_device_init_count) == 0);
+ if (need_reprobe)
+ css_schedule_reprobe();
+}
+
+static DECLARE_WORK(reprobe_idle_work, reprobe_after_idle);
+
/* Work function used to reprobe all unregistered subchannels. */
static void reprobe_all(struct work_struct *unused)
{
@@ -517,10 +551,12 @@ static void reprobe_all(struct work_struct *unused)
CIO_MSG_EVENT(4, "reprobe start\n");
- need_reprobe = 0;
/* Make sure initial subchannel scan is done. */
- wait_event(ccw_device_init_wq,
- atomic_read(&ccw_device_init_count) == 0);
+ if (atomic_read(&ccw_device_init_count) != 0) {
+ queue_work(ccw_device_work, &reprobe_idle_work);
+ return;
+ }
+ need_reprobe = 0;
ret = for_each_subchannel_staged(NULL, reprobe_subchannel, NULL);
CIO_MSG_EVENT(4, "reprobe done (rc=%d, need_reprobe=%d)\n", ret,
@@ -619,7 +655,7 @@ css_generate_pgid(struct channel_subsystem *css, u32 tod_high)
css->global_pgid.pgid_high.ext_cssid.cssid = css->cssid;
} else {
#ifdef CONFIG_SMP
- css->global_pgid.pgid_high.cpu_addr = hard_smp_processor_id();
+ css->global_pgid.pgid_high.cpu_addr = stap();
#else
css->global_pgid.pgid_high.cpu_addr = 0;
#endif
@@ -765,7 +801,7 @@ init_channel_subsystem (void)
if (ret)
goto out;
- ret = s390_register_crw_handler(CRW_RSC_SCH, css_process_crw);
+ ret = crw_register_handler(CRW_RSC_SCH, css_process_crw);
if (ret)
goto out;
@@ -845,7 +881,7 @@ out_unregister:
out_bus:
bus_unregister(&css_bus_type);
out:
- s390_unregister_crw_handler(CRW_RSC_CSS);
+ crw_unregister_handler(CRW_RSC_CSS);
chsc_free_sei_area();
kfree(slow_subchannel_set);
pr_alert("The CSS device driver initialization failed with "
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index e28f8ae5345..c4d2f667a2f 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -457,12 +457,13 @@ int ccw_device_set_online(struct ccw_device *cdev)
return (ret == 0) ? -ENODEV : ret;
}
-static void online_store_handle_offline(struct ccw_device *cdev)
+static int online_store_handle_offline(struct ccw_device *cdev)
{
if (cdev->private->state == DEV_STATE_DISCONNECTED)
ccw_device_remove_disconnected(cdev);
- else if (cdev->drv && cdev->drv->set_offline)
- ccw_device_set_offline(cdev);
+ else if (cdev->online && cdev->drv && cdev->drv->set_offline)
+ return ccw_device_set_offline(cdev);
+ return 0;
}
static int online_store_recog_and_online(struct ccw_device *cdev)
@@ -530,13 +531,10 @@ static ssize_t online_store (struct device *dev, struct device_attribute *attr,
goto out;
switch (i) {
case 0:
- online_store_handle_offline(cdev);
- ret = count;
+ ret = online_store_handle_offline(cdev);
break;
case 1:
ret = online_store_handle_online(cdev, force);
- if (!ret)
- ret = count;
break;
default:
ret = -EINVAL;
@@ -545,7 +543,7 @@ out:
if (cdev->drv)
module_put(cdev->drv->owner);
atomic_set(&cdev->private->onoff, 0);
- return ret;
+ return (ret < 0) ? ret : count;
}
static ssize_t
@@ -681,35 +679,22 @@ get_orphaned_ccwdev_by_dev_id(struct channel_subsystem *css,
return dev ? to_ccwdev(dev) : NULL;
}
-static void
-ccw_device_add_changed(struct work_struct *work)
-{
- struct ccw_device_private *priv;
- struct ccw_device *cdev;
-
- priv = container_of(work, struct ccw_device_private, kick_work);
- cdev = priv->cdev;
- if (device_add(&cdev->dev)) {
- put_device(&cdev->dev);
- return;
- }
- set_bit(1, &cdev->private->registered);
-}
-
-void ccw_device_do_unreg_rereg(struct work_struct *work)
+void ccw_device_do_unbind_bind(struct work_struct *work)
{
struct ccw_device_private *priv;
struct ccw_device *cdev;
struct subchannel *sch;
+ int ret;
priv = container_of(work, struct ccw_device_private, kick_work);
cdev = priv->cdev;
sch = to_subchannel(cdev->dev.parent);
- ccw_device_unregister(cdev);
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_add_changed);
- queue_work(ccw_device_work, &cdev->private->kick_work);
+ if (test_bit(1, &cdev->private->registered)) {
+ device_release_driver(&cdev->dev);
+ ret = device_attach(&cdev->dev);
+ WARN_ON(ret == -ENODEV);
+ }
}
static void
@@ -1035,8 +1020,6 @@ static void ccw_device_call_sch_unregister(struct work_struct *work)
void
io_subchannel_recog_done(struct ccw_device *cdev)
{
- struct subchannel *sch;
-
if (css_init_done == 0) {
cdev->private->flags.recog_done = 1;
return;
@@ -1047,7 +1030,6 @@ io_subchannel_recog_done(struct ccw_device *cdev)
/* Remove device found not operational. */
if (!get_device(&cdev->dev))
break;
- sch = to_subchannel(cdev->dev.parent);
PREPARE_WORK(&cdev->private->kick_work,
ccw_device_call_sch_unregister);
queue_work(slow_path_wq, &cdev->private->kick_work);
diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h
index 0f2e63ea48d..85e01846ca6 100644
--- a/drivers/s390/cio/device.h
+++ b/drivers/s390/cio/device.h
@@ -80,7 +80,7 @@ void io_subchannel_init_config(struct subchannel *sch);
int ccw_device_cancel_halt_clear(struct ccw_device *);
-void ccw_device_do_unreg_rereg(struct work_struct *);
+void ccw_device_do_unbind_bind(struct work_struct *);
void ccw_device_move_to_orphanage(struct work_struct *);
int ccw_device_is_orphan(struct ccw_device *);
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 8df5eaafc5a..87b4bfca080 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -194,7 +194,7 @@ ccw_device_handle_oper(struct ccw_device *cdev)
cdev->id.dev_type != cdev->private->senseid.dev_type ||
cdev->id.dev_model != cdev->private->senseid.dev_model) {
PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_do_unreg_rereg);
+ ccw_device_do_unbind_bind);
queue_work(ccw_device_work, &cdev->private->kick_work);
return 0;
}
@@ -366,7 +366,7 @@ static void ccw_device_oper_notify(struct ccw_device *cdev)
}
/* Driver doesn't want device back. */
ccw_device_set_notoper(cdev);
- PREPARE_WORK(&cdev->private->kick_work, ccw_device_do_unreg_rereg);
+ PREPARE_WORK(&cdev->private->kick_work, ccw_device_do_unbind_bind);
queue_work(ccw_device_work, &cdev->private->kick_work);
}
@@ -728,7 +728,7 @@ static void ccw_device_generic_notoper(struct ccw_device *cdev,
{
struct subchannel *sch;
- cdev->private->state = DEV_STATE_NOT_OPER;
+ ccw_device_set_notoper(cdev);
sch = to_subchannel(cdev->dev.parent);
css_schedule_eval(sch->schid);
}
@@ -1052,7 +1052,7 @@ ccw_device_offline_irq(struct ccw_device *cdev, enum dev_event dev_event)
sch = to_subchannel(cdev->dev.parent);
/*
* An interrupt in state offline means a previous disable was not
- * successful. Try again.
+ * successful - should not happen, but we try to disable again.
*/
cio_disable_subchannel(sch);
}
diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c
index eabcc42d63d..151754d5474 100644
--- a/drivers/s390/cio/device_ops.c
+++ b/drivers/s390/cio/device_ops.c
@@ -680,7 +680,7 @@ int ccw_device_tm_intrg(struct ccw_device *cdev)
if (cdev->private->state != DEV_STATE_ONLINE)
return -EIO;
if (!scsw_is_tm(&sch->schib.scsw) ||
- !(scsw_actl(&sch->schib.scsw) | SCSW_ACTL_START_PEND))
+ !(scsw_actl(&sch->schib.scsw) & SCSW_ACTL_START_PEND))
return -EINVAL;
return cio_tm_intrg(sch);
}
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index 42f2b09631b..13bcb811438 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -186,6 +186,9 @@ struct qdio_input_q {
/* input buffer acknowledgement flag */
int polling;
+ /* first ACK'ed buffer */
+ int ack_start;
+
/* how much sbals are acknowledged with qebsm */
int ack_count;
@@ -234,7 +237,7 @@ struct qdio_q {
int first_to_check;
/* first_to_check of the last time */
- int last_move_ftc;
+ int last_move;
/* beginning position for calling the program */
int first_to_kick;
@@ -244,7 +247,6 @@ struct qdio_q {
struct qdio_irq *irq_ptr;
struct tasklet_struct tasklet;
- spinlock_t lock;
/* error condition during a data transfer */
unsigned int qdio_error;
@@ -354,7 +356,7 @@ int get_buf_state(struct qdio_q *q, unsigned int bufnr, unsigned char *state,
int auto_ack);
void qdio_check_outbound_after_thinint(struct qdio_q *q);
int qdio_inbound_q_moved(struct qdio_q *q);
-void qdio_kick_inbound_handler(struct qdio_q *q);
+void qdio_kick_handler(struct qdio_q *q);
void qdio_stop_polling(struct qdio_q *q);
int qdio_siga_sync_q(struct qdio_q *q);
diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c
index da7afb04e71..e3434b34f86 100644
--- a/drivers/s390/cio/qdio_debug.c
+++ b/drivers/s390/cio/qdio_debug.c
@@ -63,8 +63,9 @@ static int qstat_show(struct seq_file *m, void *v)
seq_printf(m, "device state indicator: %d\n", *(u32 *)q->irq_ptr->dsci);
seq_printf(m, "nr_used: %d\n", atomic_read(&q->nr_buf_used));
seq_printf(m, "ftc: %d\n", q->first_to_check);
- seq_printf(m, "last_move_ftc: %d\n", q->last_move_ftc);
+ seq_printf(m, "last_move: %d\n", q->last_move);
seq_printf(m, "polling: %d\n", q->u.in.polling);
+ seq_printf(m, "ack start: %d\n", q->u.in.ack_start);
seq_printf(m, "ack count: %d\n", q->u.in.ack_count);
seq_printf(m, "slsb buffer states:\n");
seq_printf(m, "|0 |8 |16 |24 |32 |40 |48 |56 63|\n");
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 10cb0f8726e..9e8a2914259 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -380,11 +380,11 @@ inline void qdio_stop_polling(struct qdio_q *q)
/* show the card that we are not polling anymore */
if (is_qebsm(q)) {
- set_buf_states(q, q->last_move_ftc, SLSB_P_INPUT_NOT_INIT,
+ set_buf_states(q, q->u.in.ack_start, SLSB_P_INPUT_NOT_INIT,
q->u.in.ack_count);
q->u.in.ack_count = 0;
} else
- set_buf_state(q, q->last_move_ftc, SLSB_P_INPUT_NOT_INIT);
+ set_buf_state(q, q->u.in.ack_start, SLSB_P_INPUT_NOT_INIT);
}
static void announce_buffer_error(struct qdio_q *q, int count)
@@ -419,15 +419,15 @@ static inline void inbound_primed(struct qdio_q *q, int count)
if (!q->u.in.polling) {
q->u.in.polling = 1;
q->u.in.ack_count = count;
- q->last_move_ftc = q->first_to_check;
+ q->u.in.ack_start = q->first_to_check;
return;
}
/* delete the previous ACK's */
- set_buf_states(q, q->last_move_ftc, SLSB_P_INPUT_NOT_INIT,
+ set_buf_states(q, q->u.in.ack_start, SLSB_P_INPUT_NOT_INIT,
q->u.in.ack_count);
q->u.in.ack_count = count;
- q->last_move_ftc = q->first_to_check;
+ q->u.in.ack_start = q->first_to_check;
return;
}
@@ -439,14 +439,13 @@ static inline void inbound_primed(struct qdio_q *q, int count)
if (q->u.in.polling) {
/* reset the previous ACK but first set the new one */
set_buf_state(q, new, SLSB_P_INPUT_ACK);
- set_buf_state(q, q->last_move_ftc, SLSB_P_INPUT_NOT_INIT);
- }
- else {
+ set_buf_state(q, q->u.in.ack_start, SLSB_P_INPUT_NOT_INIT);
+ } else {
q->u.in.polling = 1;
- set_buf_state(q, q->first_to_check, SLSB_P_INPUT_ACK);
+ set_buf_state(q, new, SLSB_P_INPUT_ACK);
}
- q->last_move_ftc = new;
+ q->u.in.ack_start = new;
count--;
if (!count)
return;
@@ -455,7 +454,7 @@ static inline void inbound_primed(struct qdio_q *q, int count)
* Need to change all PRIMED buffers to NOT_INIT, otherwise
* we're loosing initiative in the thinint code.
*/
- set_buf_states(q, next_buf(q->first_to_check), SLSB_P_INPUT_NOT_INIT,
+ set_buf_states(q, q->first_to_check, SLSB_P_INPUT_NOT_INIT,
count);
}
@@ -523,7 +522,8 @@ int qdio_inbound_q_moved(struct qdio_q *q)
bufnr = get_inbound_buffer_frontier(q);
- if ((bufnr != q->last_move_ftc) || q->qdio_error) {
+ if ((bufnr != q->last_move) || q->qdio_error) {
+ q->last_move = bufnr;
if (!need_siga_sync(q) && !pci_out_supported(q))
q->u.in.timestamp = get_usecs();
@@ -570,29 +570,30 @@ static int qdio_inbound_q_done(struct qdio_q *q)
}
}
-void qdio_kick_inbound_handler(struct qdio_q *q)
+void qdio_kick_handler(struct qdio_q *q)
{
- int count, start, end;
-
- qdio_perf_stat_inc(&perf_stats.inbound_handler);
-
- start = q->first_to_kick;
- end = q->first_to_check;
- if (end >= start)
- count = end - start;
- else
- count = end + QDIO_MAX_BUFFERS_PER_Q - start;
-
- DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "kih s:%3d c:%3d", start, count);
+ int start = q->first_to_kick;
+ int end = q->first_to_check;
+ int count;
if (unlikely(q->irq_ptr->state != QDIO_IRQ_STATE_ACTIVE))
return;
- q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr,
- start, count, q->irq_ptr->int_parm);
+ count = sub_buf(end, start);
+
+ if (q->is_input_q) {
+ qdio_perf_stat_inc(&perf_stats.inbound_handler);
+ DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "kih s:%3d c:%3d", start, count);
+ } else {
+ DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "koh: nr:%1d", q->nr);
+ DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "s:%3d c:%3d", start, count);
+ }
+
+ q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr, start, count,
+ q->irq_ptr->int_parm);
/* for the next time */
- q->first_to_kick = q->first_to_check;
+ q->first_to_kick = end;
q->qdio_error = 0;
}
@@ -603,7 +604,7 @@ again:
if (!qdio_inbound_q_moved(q))
return;
- qdio_kick_inbound_handler(q);
+ qdio_kick_handler(q);
if (!qdio_inbound_q_done(q))
/* means poll time is not yet over */
@@ -698,21 +699,21 @@ static inline int qdio_outbound_q_moved(struct qdio_q *q)
bufnr = get_outbound_buffer_frontier(q);
- if ((bufnr != q->last_move_ftc) || q->qdio_error) {
- q->last_move_ftc = bufnr;
+ if ((bufnr != q->last_move) || q->qdio_error) {
+ q->last_move = bufnr;
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "out moved:%1d", q->nr);
return 1;
} else
return 0;
}
-static void qdio_kick_outbound_q(struct qdio_q *q)
+static int qdio_kick_outbound_q(struct qdio_q *q)
{
unsigned int busy_bit;
int cc;
if (!need_siga_out(q))
- return;
+ return 0;
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-w:%1d", q->nr);
qdio_perf_stat_inc(&perf_stats.siga_out);
@@ -724,75 +725,37 @@ static void qdio_kick_outbound_q(struct qdio_q *q)
case 2:
if (busy_bit) {
DBF_ERROR("%4x cc2 REP:%1d", SCH_NO(q), q->nr);
- q->qdio_error = cc | QDIO_ERROR_SIGA_BUSY;
- } else {
- DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-w cc2:%1d",
- q->nr);
- q->qdio_error = cc;
- }
+ cc |= QDIO_ERROR_SIGA_BUSY;
+ } else
+ DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-w cc2:%1d", q->nr);
break;
case 1:
case 3:
DBF_ERROR("%4x SIGA-W:%1d", SCH_NO(q), cc);
- q->qdio_error = cc;
break;
}
-}
-
-static void qdio_kick_outbound_handler(struct qdio_q *q)
-{
- int start, end, count;
-
- start = q->first_to_kick;
- end = q->last_move_ftc;
- if (end >= start)
- count = end - start;
- else
- count = end + QDIO_MAX_BUFFERS_PER_Q - start;
-
- DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "kickouth: %1d", q->nr);
- DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "s:%3d c:%3d", start, count);
-
- if (unlikely(q->irq_ptr->state != QDIO_IRQ_STATE_ACTIVE))
- return;
-
- q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr, start, count,
- q->irq_ptr->int_parm);
-
- /* for the next time: */
- q->first_to_kick = q->last_move_ftc;
- q->qdio_error = 0;
+ return cc;
}
static void __qdio_outbound_processing(struct qdio_q *q)
{
- unsigned long flags;
-
qdio_perf_stat_inc(&perf_stats.tasklet_outbound);
- spin_lock_irqsave(&q->lock, flags);
-
BUG_ON(atomic_read(&q->nr_buf_used) < 0);
if (qdio_outbound_q_moved(q))
- qdio_kick_outbound_handler(q);
-
- spin_unlock_irqrestore(&q->lock, flags);
+ qdio_kick_handler(q);
- if (queue_type(q) == QDIO_ZFCP_QFMT) {
+ if (queue_type(q) == QDIO_ZFCP_QFMT)
if (!pci_out_supported(q) && !qdio_outbound_q_done(q))
- tasklet_schedule(&q->tasklet);
- return;
- }
+ goto sched;
/* bail out for HiperSockets unicast queues */
if (queue_type(q) == QDIO_IQDIO_QFMT && !multicast_outbound(q))
return;
if ((queue_type(q) == QDIO_IQDIO_QFMT) &&
- (atomic_read(&q->nr_buf_used)) > QDIO_IQDIO_POLL_LVL) {
- tasklet_schedule(&q->tasklet);
- return;
- }
+ (atomic_read(&q->nr_buf_used)) > QDIO_IQDIO_POLL_LVL)
+ goto sched;
if (q->u.out.pci_out_enabled)
return;
@@ -810,6 +773,12 @@ static void __qdio_outbound_processing(struct qdio_q *q)
qdio_perf_stat_inc(&perf_stats.debug_tl_out_timer);
}
}
+ return;
+
+sched:
+ if (unlikely(q->irq_ptr->state == QDIO_IRQ_STATE_STOPPED))
+ return;
+ tasklet_schedule(&q->tasklet);
}
/* outbound tasklet */
@@ -822,6 +791,9 @@ void qdio_outbound_processing(unsigned long data)
void qdio_outbound_timer(unsigned long data)
{
struct qdio_q *q = (struct qdio_q *)data;
+
+ if (unlikely(q->irq_ptr->state == QDIO_IRQ_STATE_STOPPED))
+ return;
tasklet_schedule(&q->tasklet);
}
@@ -863,6 +835,9 @@ static void qdio_int_handler_pci(struct qdio_irq *irq_ptr)
int i;
struct qdio_q *q;
+ if (unlikely(irq_ptr->state == QDIO_IRQ_STATE_STOPPED))
+ return;
+
qdio_perf_stat_inc(&perf_stats.pci_int);
for_each_input_queue(irq_ptr, q, i)
@@ -1065,8 +1040,9 @@ EXPORT_SYMBOL_GPL(qdio_get_ssqd_desc);
* @cdev: associated ccw device
* @how: use halt or clear to shutdown
*
- * This function calls qdio_shutdown() for @cdev with method @how
- * and on success qdio_free() for @cdev.
+ * This function calls qdio_shutdown() for @cdev with method @how.
+ * and qdio_free(). The qdio_free() return value is ignored since
+ * !irq_ptr is already checked.
*/
int qdio_cleanup(struct ccw_device *cdev, int how)
{
@@ -1077,8 +1053,8 @@ int qdio_cleanup(struct ccw_device *cdev, int how)
return -ENODEV;
rc = qdio_shutdown(cdev, how);
- if (rc == 0)
- rc = qdio_free(cdev);
+
+ qdio_free(cdev);
return rc;
}
EXPORT_SYMBOL_GPL(qdio_cleanup);
@@ -1090,11 +1066,11 @@ static void qdio_shutdown_queues(struct ccw_device *cdev)
int i;
for_each_input_queue(irq_ptr, q, i)
- tasklet_disable(&q->tasklet);
+ tasklet_kill(&q->tasklet);
for_each_output_queue(irq_ptr, q, i) {
- tasklet_disable(&q->tasklet);
del_timer(&q->u.out.timer);
+ tasklet_kill(&q->tasklet);
}
}
@@ -1112,6 +1088,7 @@ int qdio_shutdown(struct ccw_device *cdev, int how)
if (!irq_ptr)
return -ENODEV;
+ BUG_ON(irqs_disabled());
DBF_EVENT("qshutdown:%4x", cdev->private->schid.sch_no);
mutex_lock(&irq_ptr->setup_mutex);
@@ -1124,6 +1101,12 @@ int qdio_shutdown(struct ccw_device *cdev, int how)
return 0;
}
+ /*
+ * Indicate that the device is going down. Scheduling the queue
+ * tasklets is forbidden from here on.
+ */
+ qdio_set_state(irq_ptr, QDIO_IRQ_STATE_STOPPED);
+
tiqdio_remove_input_queues(irq_ptr);
qdio_shutdown_queues(cdev);
qdio_shutdown_debug_entries(irq_ptr, cdev);
@@ -1403,9 +1386,8 @@ int qdio_activate(struct ccw_device *cdev)
switch (irq_ptr->state) {
case QDIO_IRQ_STATE_STOPPED:
case QDIO_IRQ_STATE_ERR:
- mutex_unlock(&irq_ptr->setup_mutex);
- qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR);
- return -EIO;
+ rc = -EIO;
+ break;
default:
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ACTIVE);
rc = 0;
@@ -1442,10 +1424,10 @@ static inline int buf_in_between(int bufnr, int start, int count)
* @bufnr: first buffer to process
* @count: how many buffers are emptied
*/
-static void handle_inbound(struct qdio_q *q, unsigned int callflags,
- int bufnr, int count)
+static int handle_inbound(struct qdio_q *q, unsigned int callflags,
+ int bufnr, int count)
{
- int used, cc, diff;
+ int used, diff;
if (!q->u.in.polling)
goto set;
@@ -1456,19 +1438,18 @@ static void handle_inbound(struct qdio_q *q, unsigned int callflags,
q->u.in.polling = 0;
q->u.in.ack_count = 0;
goto set;
- } else if (buf_in_between(q->last_move_ftc, bufnr, count)) {
+ } else if (buf_in_between(q->u.in.ack_start, bufnr, count)) {
if (is_qebsm(q)) {
- /* partial overwrite, just update last_move_ftc */
+ /* partial overwrite, just update ack_start */
diff = add_buf(bufnr, count);
- diff = sub_buf(diff, q->last_move_ftc);
+ diff = sub_buf(diff, q->u.in.ack_start);
q->u.in.ack_count -= diff;
if (q->u.in.ack_count <= 0) {
q->u.in.polling = 0;
q->u.in.ack_count = 0;
- /* TODO: must we set last_move_ftc to something meaningful? */
goto set;
}
- q->last_move_ftc = add_buf(q->last_move_ftc, diff);
+ q->u.in.ack_start = add_buf(q->u.in.ack_start, diff);
}
else
/* the only ACK will be deleted, so stop polling */
@@ -1483,13 +1464,11 @@ set:
/* no need to signal as long as the adapter had free buffers */
if (used)
- return;
+ return 0;
- if (need_siga_in(q)) {
- cc = qdio_siga_input(q);
- if (cc)
- q->qdio_error = cc;
- }
+ if (need_siga_in(q))
+ return qdio_siga_input(q);
+ return 0;
}
/**
@@ -1499,11 +1478,11 @@ set:
* @bufnr: first buffer to process
* @count: how many buffers are filled
*/
-static void handle_outbound(struct qdio_q *q, unsigned int callflags,
- int bufnr, int count)
+static int handle_outbound(struct qdio_q *q, unsigned int callflags,
+ int bufnr, int count)
{
unsigned char state;
- int used;
+ int used, rc = 0;
qdio_perf_stat_inc(&perf_stats.outbound_handler);
@@ -1518,27 +1497,26 @@ static void handle_outbound(struct qdio_q *q, unsigned int callflags,
if (queue_type(q) == QDIO_IQDIO_QFMT) {
if (multicast_outbound(q))
- qdio_kick_outbound_q(q);
+ rc = qdio_kick_outbound_q(q);
else
if ((q->irq_ptr->ssqd_desc.mmwc > 1) &&
(count > 1) &&
(count <= q->irq_ptr->ssqd_desc.mmwc)) {
/* exploit enhanced SIGA */
q->u.out.use_enh_siga = 1;
- qdio_kick_outbound_q(q);
+ rc = qdio_kick_outbound_q(q);
} else {
/*
* One siga-w per buffer required for unicast
* HiperSockets.
*/
q->u.out.use_enh_siga = 0;
- while (count--)
- qdio_kick_outbound_q(q);
+ while (count--) {
+ rc = qdio_kick_outbound_q(q);
+ if (rc)
+ goto out;
+ }
}
-
- /* report CC=2 conditions synchronously */
- if (q->qdio_error)
- __qdio_outbound_processing(q);
goto out;
}
@@ -1550,14 +1528,14 @@ static void handle_outbound(struct qdio_q *q, unsigned int callflags,
/* try to fast requeue buffers */
get_buf_state(q, prev_buf(bufnr), &state, 0);
if (state != SLSB_CU_OUTPUT_PRIMED)
- qdio_kick_outbound_q(q);
+ rc = qdio_kick_outbound_q(q);
else {
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "fast-req");
qdio_perf_stat_inc(&perf_stats.fast_requeue);
}
out:
- /* Fixme: could wait forever if called from process context */
tasklet_schedule(&q->tasklet);
+ return rc;
}
/**
@@ -1596,14 +1574,12 @@ int do_QDIO(struct ccw_device *cdev, unsigned int callflags,
return -EBUSY;
if (callflags & QDIO_FLAG_SYNC_INPUT)
- handle_inbound(irq_ptr->input_qs[q_nr], callflags, bufnr,
- count);
+ return handle_inbound(irq_ptr->input_qs[q_nr],
+ callflags, bufnr, count);
else if (callflags & QDIO_FLAG_SYNC_OUTPUT)
- handle_outbound(irq_ptr->output_qs[q_nr], callflags, bufnr,
- count);
- else
- return -EINVAL;
- return 0;
+ return handle_outbound(irq_ptr->output_qs[q_nr],
+ callflags, bufnr, count);
+ return -EINVAL;
}
EXPORT_SYMBOL_GPL(do_QDIO);
diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c
index c08356b95bf..18d54fc21ce 100644
--- a/drivers/s390/cio/qdio_setup.c
+++ b/drivers/s390/cio/qdio_setup.c
@@ -117,7 +117,6 @@ static void setup_queues_misc(struct qdio_q *q, struct qdio_irq *irq_ptr,
q->mask = 1 << (31 - i);
q->nr = i;
q->handler = handler;
- spin_lock_init(&q->lock);
}
static void setup_storage_lists(struct qdio_q *q, struct qdio_irq *irq_ptr,
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index 8e90e147b74..c655d011a78 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -31,6 +31,7 @@
/* list of thin interrupt input queues */
static LIST_HEAD(tiq_list);
+DEFINE_MUTEX(tiq_list_lock);
/* adapter local summary indicator */
static unsigned char *tiqdio_alsi;
@@ -95,12 +96,11 @@ void tiqdio_add_input_queues(struct qdio_irq *irq_ptr)
if (!css_qdio_omit_svs && irq_ptr->siga_flag.sync)
css_qdio_omit_svs = 1;
- for_each_input_queue(irq_ptr, q, i) {
+ mutex_lock(&tiq_list_lock);
+ for_each_input_queue(irq_ptr, q, i)
list_add_rcu(&q->entry, &tiq_list);
- synchronize_rcu();
- }
+ mutex_unlock(&tiq_list_lock);
xchg(irq_ptr->dsci, 1);
- tasklet_schedule(&tiqdio_tasklet);
}
/*
@@ -118,7 +118,10 @@ void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr)
/* if establish triggered an error */
if (!q || !q->entry.prev || !q->entry.next)
continue;
+
+ mutex_lock(&tiq_list_lock);
list_del_rcu(&q->entry);
+ mutex_unlock(&tiq_list_lock);
synchronize_rcu();
}
}
@@ -155,15 +158,15 @@ static void __tiqdio_inbound_processing(struct qdio_q *q)
*/
qdio_check_outbound_after_thinint(q);
-again:
if (!qdio_inbound_q_moved(q))
return;
- qdio_kick_inbound_handler(q);
+ qdio_kick_handler(q);
if (!tiqdio_inbound_q_done(q)) {
qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop);
- goto again;
+ if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED))
+ tasklet_schedule(&q->tasklet);
}
qdio_stop_polling(q);
@@ -173,7 +176,8 @@ again:
*/
if (!tiqdio_inbound_q_done(q)) {
qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop2);
- goto again;
+ if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED))
+ tasklet_schedule(&q->tasklet);
}
}
@@ -366,10 +370,11 @@ void qdio_shutdown_thinint(struct qdio_irq *irq_ptr)
void __exit tiqdio_unregister_thinints(void)
{
- tasklet_disable(&tiqdio_tasklet);
+ WARN_ON(!list_empty(&tiq_list));
if (tiqdio_alsi) {
s390_unregister_adapter_interrupt(tiqdio_alsi, QDIO_AIRQ_ISC);
isc_unregister(QDIO_AIRQ_ISC);
}
+ tasklet_kill(&tiqdio_tasklet);
}
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index cb22b97944b..65b6a96afe6 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -128,8 +128,7 @@ static void __zcrypt_increase_preference(struct zcrypt_device *zdev)
if (l == zdev->list.prev)
return;
/* Move zdev behind l */
- list_del(&zdev->list);
- list_add(&zdev->list, l);
+ list_move(&zdev->list, l);
}
/**
@@ -157,8 +156,7 @@ static void __zcrypt_decrease_preference(struct zcrypt_device *zdev)
if (l == zdev->list.next)
return;
/* Move zdev before l */
- list_del(&zdev->list);
- list_add_tail(&zdev->list, l);
+ list_move_tail(&zdev->list, l);
}
static void zcrypt_device_release(struct kref *kref)
diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c
index e7a1e22e77a..c20d4790258 100644
--- a/drivers/s390/crypto/zcrypt_pcixcc.c
+++ b/drivers/s390/crypto/zcrypt_pcixcc.c
@@ -781,8 +781,7 @@ static long zcrypt_pcixcc_send_cprb(struct zcrypt_device *zdev,
/* Signal pending. */
ap_cancel_message(zdev->ap_dev, &ap_msg);
out_free:
- memset(ap_msg.message, 0x0, ap_msg.length);
- kfree(ap_msg.message);
+ kzfree(ap_msg.message);
return rc;
}
diff --git a/drivers/s390/ebcdic.c b/drivers/s390/ebcdic.c
deleted file mode 100644
index 99c98da1547..00000000000
--- a/drivers/s390/ebcdic.c
+++ /dev/null
@@ -1,246 +0,0 @@
-/*
- * arch/s390/kernel/ebcdic.c
- * ECBDIC -> ASCII, ASCII -> ECBDIC conversion tables.
- *
- * S390 version
- * Copyright (C) 1998 IBM Corporation
- * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
- */
-
-#include <asm/types.h>
-
-/*
- * ASCII -> EBCDIC
- */
-__u8 _ascebc[256] =
-{
- /*00 NL SH SX EX ET NQ AK BL */
- 0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F,
- /*08 BS HT LF VT FF CR SO SI */
- 0x16, 0x05, 0x15, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- /*10 DL D1 D2 D3 D4 NK SN EB */
- 0x10, 0x11, 0x12, 0x13, 0x3C, 0x15, 0x32, 0x26,
- /*18 CN EM SB EC FS GS RS US */
- 0x18, 0x19, 0x3F, 0x27, 0x1C, 0x1D, 0x1E, 0x1F,
- /*20 SP ! " # $ % & ' */
- 0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D,
- /*28 ( ) * + , - . / */
- 0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
- /*30 0 1 2 3 4 5 6 7 */
- 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
- /*38 8 9 : ; < = > ? */
- 0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
- /*40 @ A B C D E F G */
- 0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
- /*48 H I J K L M N O */
- 0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
- /*50 P Q R S T U V W */
- 0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6,
- /*58 X Y Z [ \ ] ^ _ */
- 0xE7, 0xE8, 0xE9, 0xAD, 0xE0, 0xBD, 0x5F, 0x6D,
- /*60 ` a b c d e f g */
- 0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
- /*68 h i j k l m n o */
- 0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
- /*70 p q r s t u v w */
- 0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6,
- /*78 x y z { | } ~ DL */
- 0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xA1, 0x07,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0xFF
-};
-
-/*
- * EBCDIC -> ASCII
- */
-__u8 _ebcasc[256] =
-{
- /* 0x00 NUL SOH STX ETX *SEL HT *RNL DEL */
- 0x00, 0x01, 0x02, 0x03, 0x07, 0x09, 0x07, 0x7F,
- /* 0x08 -GE -SPS -RPT VT FF CR SO SI */
- 0x07, 0x07, 0x07, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- /* 0x10 DLE DC1 DC2 DC3 -RES -NL BS -POC
- -ENP ->LF */
- 0x10, 0x11, 0x12, 0x13, 0x07, 0x0A, 0x08, 0x07,
- /* 0x18 CAN EM -UBS -CU1 -IFS -IGS -IRS -ITB
- -IUS */
- 0x18, 0x19, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
- /* 0x20 -DS -SOS FS -WUS -BYP LF ETB ESC
- -INP */
- 0x07, 0x07, 0x1C, 0x07, 0x07, 0x0A, 0x17, 0x1B,
- /* 0x28 -SA -SFE -SM -CSP -MFA ENQ ACK BEL
- -SW */
- 0x07, 0x07, 0x07, 0x07, 0x07, 0x05, 0x06, 0x07,
- /* 0x30 ---- ---- SYN -IR -PP -TRN -NBS EOT */
- 0x07, 0x07, 0x16, 0x07, 0x07, 0x07, 0x07, 0x04,
- /* 0x38 -SBS -IT -RFF -CU3 DC4 NAK ---- SUB */
- 0x07, 0x07, 0x07, 0x07, 0x14, 0x15, 0x07, 0x1A,
- /* 0x40 SP RSP ---- */
- 0x20, 0xFF, 0x83, 0x84, 0x85, 0xA0, 0x07, 0x86,
- /* 0x48 . < ( + | */
- 0x87, 0xA4, 0x9B, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
- /* 0x50 & ---- */
- 0x26, 0x82, 0x88, 0x89, 0x8A, 0xA1, 0x8C, 0x07,
- /* 0x58 ! $ * ) ; */
- 0x8D, 0xE1, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0xAA,
- /* 0x60 - / ---- ---- ---- ---- */
- 0x2D, 0x2F, 0x07, 0x8E, 0x07, 0x07, 0x07, 0x8F,
- /* 0x68 ---- , % _ > ? */
- 0x80, 0xA5, 0x07, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
- /* 0x70 ---- ---- ---- ---- ---- ---- ---- */
- 0x07, 0x90, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
- /* 0x78 * ` : # @ ' = " */
- 0x70, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
- /* 0x80 * a b c d e f g */
- 0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
- /* 0x88 h i ---- ---- ---- */
- 0x68, 0x69, 0xAE, 0xAF, 0x07, 0x07, 0x07, 0xF1,
- /* 0x90 j k l m n o p */
- 0xF8, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
- /* 0x98 q r ---- ---- */
- 0x71, 0x72, 0xA6, 0xA7, 0x91, 0x07, 0x92, 0x07,
- /* 0xA0 ~ s t u v w x */
- 0xE6, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
- /* 0xA8 y z ---- ---- ---- ---- */
- 0x79, 0x7A, 0xAD, 0xAB, 0x07, 0x07, 0x07, 0x07,
- /* 0xB0 ^ ---- ---- */
- 0x5E, 0x9C, 0x9D, 0xFA, 0x07, 0x07, 0x07, 0xAC,
- /* 0xB8 ---- [ ] ---- ---- ---- ---- */
- 0xAB, 0x07, 0x5B, 0x5D, 0x07, 0x07, 0x07, 0x07,
- /* 0xC0 { A B C D E F G */
- 0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
- /* 0xC8 H I ---- ---- */
- 0x48, 0x49, 0x07, 0x93, 0x94, 0x95, 0xA2, 0x07,
- /* 0xD0 } J K L M N O P */
- 0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
- /* 0xD8 Q R ---- */
- 0x51, 0x52, 0x07, 0x96, 0x81, 0x97, 0xA3, 0x98,
- /* 0xE0 \ S T U V W X */
- 0x5C, 0xF6, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
- /* 0xE8 Y Z ---- ---- ---- ---- */
- 0x59, 0x5A, 0xFD, 0x07, 0x99, 0x07, 0x07, 0x07,
- /* 0xF0 0 1 2 3 4 5 6 7 */
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
- /* 0xF8 8 9 ---- ---- ---- ---- ---- */
- 0x38, 0x39, 0x07, 0x07, 0x9A, 0x07, 0x07, 0x07
-};
-
-/*
- * EBCDIC (capitals) -> ASCII (small case)
- */
-__u8 _ebcasc_reduce_case[256] =
-{
- /* 0x00 NUL SOH STX ETX *SEL HT *RNL DEL */
- 0x00, 0x01, 0x02, 0x03, 0x07, 0x09, 0x07, 0x7F,
-
- /* 0x08 -GE -SPS -RPT VT FF CR SO SI */
- 0x07, 0x07, 0x07, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
-
- /* 0x10 DLE DC1 DC2 DC3 -RES -NL BS -POC
- -ENP ->LF */
- 0x10, 0x11, 0x12, 0x13, 0x07, 0x0A, 0x08, 0x07,
-
- /* 0x18 CAN EM -UBS -CU1 -IFS -IGS -IRS -ITB
- -IUS */
- 0x18, 0x19, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
-
- /* 0x20 -DS -SOS FS -WUS -BYP LF ETB ESC
- -INP */
- 0x07, 0x07, 0x1C, 0x07, 0x07, 0x0A, 0x17, 0x1B,
-
- /* 0x28 -SA -SFE -SM -CSP -MFA ENQ ACK BEL
- -SW */
- 0x07, 0x07, 0x07, 0x07, 0x07, 0x05, 0x06, 0x07,
-
- /* 0x30 ---- ---- SYN -IR -PP -TRN -NBS EOT */
- 0x07, 0x07, 0x16, 0x07, 0x07, 0x07, 0x07, 0x04,
-
- /* 0x38 -SBS -IT -RFF -CU3 DC4 NAK ---- SUB */
- 0x07, 0x07, 0x07, 0x07, 0x14, 0x15, 0x07, 0x1A,
-
- /* 0x40 SP RSP ---- */
- 0x20, 0xFF, 0x83, 0x84, 0x85, 0xA0, 0x07, 0x86,
-
- /* 0x48 . < ( + | */
- 0x87, 0xA4, 0x9B, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
-
- /* 0x50 & ---- */
- 0x26, 0x82, 0x88, 0x89, 0x8A, 0xA1, 0x8C, 0x07,
-
- /* 0x58 ! $ * ) ; */
- 0x8D, 0xE1, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0xAA,
-
- /* 0x60 - / ---- ---- ---- ---- */
- 0x2D, 0x2F, 0x07, 0x84, 0x07, 0x07, 0x07, 0x8F,
-
- /* 0x68 ---- , % _ > ? */
- 0x80, 0xA5, 0x07, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
-
- /* 0x70 ---- ---- ---- ---- ---- ---- ---- */
- 0x07, 0x90, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
-
- /* 0x78 * ` : # @ ' = " */
- 0x70, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
-
- /* 0x80 * a b c d e f g */
- 0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-
- /* 0x88 h i ---- ---- ---- */
- 0x68, 0x69, 0xAE, 0xAF, 0x07, 0x07, 0x07, 0xF1,
-
- /* 0x90 j k l m n o p */
- 0xF8, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
-
- /* 0x98 q r ---- ---- */
- 0x71, 0x72, 0xA6, 0xA7, 0x91, 0x07, 0x92, 0x07,
-
- /* 0xA0 ~ s t u v w x */
- 0xE6, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
-
- /* 0xA8 y z ---- ---- ---- ---- */
- 0x79, 0x7A, 0xAD, 0xAB, 0x07, 0x07, 0x07, 0x07,
-
- /* 0xB0 ^ ---- ---- */
- 0x5E, 0x9C, 0x9D, 0xFA, 0x07, 0x07, 0x07, 0xAC,
-
- /* 0xB8 ---- [ ] ---- ---- ---- ---- */
- 0xAB, 0x07, 0x5B, 0x5D, 0x07, 0x07, 0x07, 0x07,
-
- /* 0xC0 { A B C D E F G */
- 0x7B, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-
- /* 0xC8 H I ---- ---- */
- 0x68, 0x69, 0x07, 0x93, 0x94, 0x95, 0xA2, 0x07,
-
- /* 0xD0 } J K L M N O P */
- 0x7D, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
-
- /* 0xD8 Q R ---- */
- 0x71, 0x72, 0x07, 0x96, 0x81, 0x97, 0xA3, 0x98,
-
- /* 0xE0 \ S T U V W X */
- 0x5C, 0xF6, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
-
- /* 0xE8 Y Z ---- ---- ---- ---- */
- 0x79, 0x7A, 0xFD, 0x07, 0x94, 0x07, 0x07, 0x07,
-
- /* 0xF0 0 1 2 3 4 5 6 7 */
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
-
- /* 0xF8 8 9 ---- ---- ---- ---- ---- */
- 0x38, 0x39, 0x07, 0x07, 0x81, 0x07, 0x07, 0x07
-};
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 6fec3cfcf97..c827d69b5a9 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -2680,40 +2680,21 @@ static int qeth_handle_send_error(struct qeth_card *card,
struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
{
int sbalf15 = buffer->buffer->element[15].flags & 0xff;
- int cc = qdio_err & 3;
QETH_DBF_TEXT(TRACE, 6, "hdsnderr");
qeth_check_qdio_errors(buffer->buffer, qdio_err, "qouterr");
- switch (cc) {
- case 0:
- if (qdio_err) {
- QETH_DBF_TEXT(TRACE, 1, "lnkfail");
- QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
- QETH_DBF_TEXT_(TRACE, 1, "%04x %02x",
- (u16)qdio_err, (u8)sbalf15);
- return QETH_SEND_ERROR_LINK_FAILURE;
- }
+
+ if (!qdio_err)
return QETH_SEND_ERROR_NONE;
- case 2:
- if (qdio_err & QDIO_ERROR_SIGA_BUSY) {
- QETH_DBF_TEXT(TRACE, 1, "SIGAcc2B");
- QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
- return QETH_SEND_ERROR_KICK_IT;
- }
- if ((sbalf15 >= 15) && (sbalf15 <= 31))
- return QETH_SEND_ERROR_RETRY;
- return QETH_SEND_ERROR_LINK_FAILURE;
- /* look at qdio_error and sbalf 15 */
- case 1:
- QETH_DBF_TEXT(TRACE, 1, "SIGAcc1");
- QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
- return QETH_SEND_ERROR_LINK_FAILURE;
- case 3:
- default:
- QETH_DBF_TEXT(TRACE, 1, "SIGAcc3");
- QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
- return QETH_SEND_ERROR_KICK_IT;
- }
+
+ if ((sbalf15 >= 15) && (sbalf15 <= 31))
+ return QETH_SEND_ERROR_RETRY;
+
+ QETH_DBF_TEXT(TRACE, 1, "lnkfail");
+ QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
+ QETH_DBF_TEXT_(TRACE, 1, "%04x %02x",
+ (u16)qdio_err, (u8)sbalf15);
+ return QETH_SEND_ERROR_LINK_FAILURE;
}
/*
@@ -2849,10 +2830,14 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
qeth_get_micros() -
queue->card->perf_stats.outbound_do_qdio_start_time;
if (rc) {
+ queue->card->stats.tx_errors += count;
+ /* ignore temporary SIGA errors without busy condition */
+ if (rc == QDIO_ERROR_SIGA_TARGET)
+ return;
QETH_DBF_TEXT(TRACE, 2, "flushbuf");
QETH_DBF_TEXT_(TRACE, 2, " err%d", rc);
QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_DDEV_ID(queue->card));
- queue->card->stats.tx_errors += count;
+
/* this must not happen under normal circumstances. if it
* happens something is really wrong -> recover */
qeth_schedule_recovery(queue->card);
@@ -2927,13 +2912,7 @@ void qeth_qdio_output_handler(struct ccw_device *ccwdev,
}
for (i = first_element; i < (first_element + count); ++i) {
buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
- /*we only handle the KICK_IT error by doing a recovery */
- if (qeth_handle_send_error(card, buffer, qdio_error)
- == QETH_SEND_ERROR_KICK_IT){
- netif_stop_queue(card->dev);
- qeth_schedule_recovery(card);
- return;
- }
+ qeth_handle_send_error(card, buffer, qdio_error);
qeth_clear_output_buffer(queue, buffer);
}
atomic_sub(count, &queue->used_buffers);
diff --git a/drivers/s390/s390mach.c b/drivers/s390/s390mach.c
deleted file mode 100644
index 92b0417f8e1..00000000000
--- a/drivers/s390/s390mach.c
+++ /dev/null
@@ -1,538 +0,0 @@
-/*
- * drivers/s390/s390mach.c
- * S/390 machine check handler
- *
- * Copyright IBM Corp. 2000,2008
- * Author(s): Ingo Adlung (adlung@de.ibm.com)
- * Martin Schwidefsky (schwidefsky@de.ibm.com)
- * Cornelia Huck <cornelia.huck@de.ibm.com>
- */
-
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/workqueue.h>
-#include <linux/time.h>
-#include <linux/device.h>
-#include <linux/kthread.h>
-#include <asm/etr.h>
-#include <asm/lowcore.h>
-#include <asm/cio.h>
-#include <asm/cpu.h>
-#include "s390mach.h"
-
-static struct semaphore m_sem;
-
-static NORET_TYPE void
-s390_handle_damage(char *msg)
-{
-#ifdef CONFIG_SMP
- smp_send_stop();
-#endif
- disabled_wait((unsigned long) __builtin_return_address(0));
- for(;;);
-}
-
-static crw_handler_t crw_handlers[NR_RSCS];
-
-/**
- * s390_register_crw_handler() - register a channel report word handler
- * @rsc: reporting source code to handle
- * @handler: handler to be registered
- *
- * Returns %0 on success and a negative error value otherwise.
- */
-int s390_register_crw_handler(int rsc, crw_handler_t handler)
-{
- if ((rsc < 0) || (rsc >= NR_RSCS))
- return -EINVAL;
- if (!cmpxchg(&crw_handlers[rsc], NULL, handler))
- return 0;
- return -EBUSY;
-}
-
-/**
- * s390_unregister_crw_handler() - unregister a channel report word handler
- * @rsc: reporting source code to handle
- */
-void s390_unregister_crw_handler(int rsc)
-{
- if ((rsc < 0) || (rsc >= NR_RSCS))
- return;
- xchg(&crw_handlers[rsc], NULL);
- synchronize_sched();
-}
-
-/*
- * Retrieve CRWs and call function to handle event.
- */
-static int s390_collect_crw_info(void *param)
-{
- struct crw crw[2];
- int ccode;
- struct semaphore *sem;
- unsigned int chain;
- int ignore;
-
- sem = (struct semaphore *)param;
-repeat:
- ignore = down_interruptible(sem);
- chain = 0;
- while (1) {
- if (unlikely(chain > 1)) {
- struct crw tmp_crw;
-
- printk(KERN_WARNING"%s: Code does not support more "
- "than two chained crws; please report to "
- "linux390@de.ibm.com!\n", __func__);
- ccode = stcrw(&tmp_crw);
- printk(KERN_WARNING"%s: crw reports slct=%d, oflw=%d, "
- "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n",
- __func__, tmp_crw.slct, tmp_crw.oflw,
- tmp_crw.chn, tmp_crw.rsc, tmp_crw.anc,
- tmp_crw.erc, tmp_crw.rsid);
- printk(KERN_WARNING"%s: This was crw number %x in the "
- "chain\n", __func__, chain);
- if (ccode != 0)
- break;
- chain = tmp_crw.chn ? chain + 1 : 0;
- continue;
- }
- ccode = stcrw(&crw[chain]);
- if (ccode != 0)
- break;
- printk(KERN_DEBUG "crw_info : CRW reports slct=%d, oflw=%d, "
- "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n",
- crw[chain].slct, crw[chain].oflw, crw[chain].chn,
- crw[chain].rsc, crw[chain].anc, crw[chain].erc,
- crw[chain].rsid);
- /* Check for overflows. */
- if (crw[chain].oflw) {
- int i;
-
- pr_debug("%s: crw overflow detected!\n", __func__);
- for (i = 0; i < NR_RSCS; i++) {
- if (crw_handlers[i])
- crw_handlers[i](NULL, NULL, 1);
- }
- chain = 0;
- continue;
- }
- if (crw[0].chn && !chain) {
- chain++;
- continue;
- }
- if (crw_handlers[crw[chain].rsc])
- crw_handlers[crw[chain].rsc](&crw[0],
- chain ? &crw[1] : NULL,
- 0);
- /* chain is always 0 or 1 here. */
- chain = crw[chain].chn ? chain + 1 : 0;
- }
- goto repeat;
- return 0;
-}
-
-struct mcck_struct {
- int kill_task;
- int channel_report;
- int warning;
- unsigned long long mcck_code;
-};
-
-static DEFINE_PER_CPU(struct mcck_struct, cpu_mcck);
-
-/*
- * Main machine check handler function. Will be called with interrupts enabled
- * or disabled and machine checks enabled or disabled.
- */
-void
-s390_handle_mcck(void)
-{
- unsigned long flags;
- struct mcck_struct mcck;
-
- /*
- * Disable machine checks and get the current state of accumulated
- * machine checks. Afterwards delete the old state and enable machine
- * checks again.
- */
- local_irq_save(flags);
- local_mcck_disable();
- mcck = __get_cpu_var(cpu_mcck);
- memset(&__get_cpu_var(cpu_mcck), 0, sizeof(struct mcck_struct));
- clear_thread_flag(TIF_MCCK_PENDING);
- local_mcck_enable();
- local_irq_restore(flags);
-
- if (mcck.channel_report)
- up(&m_sem);
-
-#ifdef CONFIG_MACHCHK_WARNING
-/*
- * The warning may remain for a prolonged period on the bare iron.
- * (actually till the machine is powered off, or until the problem is gone)
- * So we just stop listening for the WARNING MCH and prevent continuously
- * being interrupted. One caveat is however, that we must do this per
- * processor and cannot use the smp version of ctl_clear_bit().
- * On VM we only get one interrupt per virtally presented machinecheck.
- * Though one suffices, we may get one interrupt per (virtual) processor.
- */
- if (mcck.warning) { /* WARNING pending ? */
- static int mchchk_wng_posted = 0;
- /*
- * Use single machine clear, as we cannot handle smp right now
- */
- __ctl_clear_bit(14, 24); /* Disable WARNING MCH */
- if (xchg(&mchchk_wng_posted, 1) == 0)
- kill_cad_pid(SIGPWR, 1);
- }
-#endif
-
- if (mcck.kill_task) {
- local_irq_enable();
- printk(KERN_EMERG "mcck: Terminating task because of machine "
- "malfunction (code 0x%016llx).\n", mcck.mcck_code);
- printk(KERN_EMERG "mcck: task: %s, pid: %d.\n",
- current->comm, current->pid);
- do_exit(SIGSEGV);
- }
-}
-EXPORT_SYMBOL_GPL(s390_handle_mcck);
-
-/*
- * returns 0 if all registers could be validated
- * returns 1 otherwise
- */
-static int
-s390_revalidate_registers(struct mci *mci)
-{
- int kill_task;
- u64 tmpclock;
- u64 zero;
- void *fpt_save_area, *fpt_creg_save_area;
-
- kill_task = 0;
- zero = 0;
- /* General purpose registers */
- if (!mci->gr)
- /*
- * General purpose registers couldn't be restored and have
- * unknown contents. Process needs to be terminated.
- */
- kill_task = 1;
-
- /* Revalidate floating point registers */
- if (!mci->fp)
- /*
- * Floating point registers can't be restored and
- * therefore the process needs to be terminated.
- */
- kill_task = 1;
-
-#ifndef CONFIG_64BIT
- asm volatile(
- " ld 0,0(%0)\n"
- " ld 2,8(%0)\n"
- " ld 4,16(%0)\n"
- " ld 6,24(%0)"
- : : "a" (&S390_lowcore.floating_pt_save_area));
-#endif
-
- if (MACHINE_HAS_IEEE) {
-#ifdef CONFIG_64BIT
- fpt_save_area = &S390_lowcore.floating_pt_save_area;
- fpt_creg_save_area = &S390_lowcore.fpt_creg_save_area;
-#else
- fpt_save_area = (void *) S390_lowcore.extended_save_area_addr;
- fpt_creg_save_area = fpt_save_area+128;
-#endif
- /* Floating point control register */
- if (!mci->fc) {
- /*
- * Floating point control register can't be restored.
- * Task will be terminated.
- */
- asm volatile("lfpc 0(%0)" : : "a" (&zero), "m" (zero));
- kill_task = 1;
-
- } else
- asm volatile("lfpc 0(%0)" : : "a" (fpt_creg_save_area));
-
- asm volatile(
- " ld 0,0(%0)\n"
- " ld 1,8(%0)\n"
- " ld 2,16(%0)\n"
- " ld 3,24(%0)\n"
- " ld 4,32(%0)\n"
- " ld 5,40(%0)\n"
- " ld 6,48(%0)\n"
- " ld 7,56(%0)\n"
- " ld 8,64(%0)\n"
- " ld 9,72(%0)\n"
- " ld 10,80(%0)\n"
- " ld 11,88(%0)\n"
- " ld 12,96(%0)\n"
- " ld 13,104(%0)\n"
- " ld 14,112(%0)\n"
- " ld 15,120(%0)\n"
- : : "a" (fpt_save_area));
- }
-
- /* Revalidate access registers */
- asm volatile(
- " lam 0,15,0(%0)"
- : : "a" (&S390_lowcore.access_regs_save_area));
- if (!mci->ar)
- /*
- * Access registers have unknown contents.
- * Terminating task.
- */
- kill_task = 1;
-
- /* Revalidate control registers */
- if (!mci->cr)
- /*
- * Control registers have unknown contents.
- * Can't recover and therefore stopping machine.
- */
- s390_handle_damage("invalid control registers.");
- else
-#ifdef CONFIG_64BIT
- asm volatile(
- " lctlg 0,15,0(%0)"
- : : "a" (&S390_lowcore.cregs_save_area));
-#else
- asm volatile(
- " lctl 0,15,0(%0)"
- : : "a" (&S390_lowcore.cregs_save_area));
-#endif
-
- /*
- * We don't even try to revalidate the TOD register, since we simply
- * can't write something sensible into that register.
- */
-
-#ifdef CONFIG_64BIT
- /*
- * See if we can revalidate the TOD programmable register with its
- * old contents (should be zero) otherwise set it to zero.
- */
- if (!mci->pr)
- asm volatile(
- " sr 0,0\n"
- " sckpf"
- : : : "0", "cc");
- else
- asm volatile(
- " l 0,0(%0)\n"
- " sckpf"
- : : "a" (&S390_lowcore.tod_progreg_save_area)
- : "0", "cc");
-#endif
-
- /* Revalidate clock comparator register */
- asm volatile(
- " stck 0(%1)\n"
- " sckc 0(%1)"
- : "=m" (tmpclock) : "a" (&(tmpclock)) : "cc", "memory");
-
- /* Check if old PSW is valid */
- if (!mci->wp)
- /*
- * Can't tell if we come from user or kernel mode
- * -> stopping machine.
- */
- s390_handle_damage("old psw invalid.");
-
- if (!mci->ms || !mci->pm || !mci->ia)
- kill_task = 1;
-
- return kill_task;
-}
-
-#define MAX_IPD_COUNT 29
-#define MAX_IPD_TIME (5 * 60 * USEC_PER_SEC) /* 5 minutes */
-
-/*
- * machine check handler.
- */
-void
-s390_do_machine_check(struct pt_regs *regs)
-{
- static DEFINE_SPINLOCK(ipd_lock);
- static unsigned long long last_ipd;
- static int ipd_count;
- unsigned long long tmp;
- struct mci *mci;
- struct mcck_struct *mcck;
- int umode;
-
- lockdep_off();
-
- s390_idle_check();
-
- mci = (struct mci *) &S390_lowcore.mcck_interruption_code;
- mcck = &__get_cpu_var(cpu_mcck);
- umode = user_mode(regs);
-
- if (mci->sd)
- /* System damage -> stopping machine */
- s390_handle_damage("received system damage machine check.");
-
- if (mci->pd) {
- if (mci->b) {
- /* Processing backup -> verify if we can survive this */
- u64 z_mcic, o_mcic, t_mcic;
-#ifdef CONFIG_64BIT
- z_mcic = (1ULL<<63 | 1ULL<<59 | 1ULL<<29);
- o_mcic = (1ULL<<43 | 1ULL<<42 | 1ULL<<41 | 1ULL<<40 |
- 1ULL<<36 | 1ULL<<35 | 1ULL<<34 | 1ULL<<32 |
- 1ULL<<30 | 1ULL<<21 | 1ULL<<20 | 1ULL<<17 |
- 1ULL<<16);
-#else
- z_mcic = (1ULL<<63 | 1ULL<<59 | 1ULL<<57 | 1ULL<<50 |
- 1ULL<<29);
- o_mcic = (1ULL<<43 | 1ULL<<42 | 1ULL<<41 | 1ULL<<40 |
- 1ULL<<36 | 1ULL<<35 | 1ULL<<34 | 1ULL<<32 |
- 1ULL<<30 | 1ULL<<20 | 1ULL<<17 | 1ULL<<16);
-#endif
- t_mcic = *(u64 *)mci;
-
- if (((t_mcic & z_mcic) != 0) ||
- ((t_mcic & o_mcic) != o_mcic)) {
- s390_handle_damage("processing backup machine "
- "check with damage.");
- }
-
- /*
- * Nullifying exigent condition, therefore we might
- * retry this instruction.
- */
-
- spin_lock(&ipd_lock);
-
- tmp = get_clock();
-
- if (((tmp - last_ipd) >> 12) < MAX_IPD_TIME)
- ipd_count++;
- else
- ipd_count = 1;
-
- last_ipd = tmp;
-
- if (ipd_count == MAX_IPD_COUNT)
- s390_handle_damage("too many ipd retries.");
-
- spin_unlock(&ipd_lock);
- }
- else {
- /* Processing damage -> stopping machine */
- s390_handle_damage("received instruction processing "
- "damage machine check.");
- }
- }
- if (s390_revalidate_registers(mci)) {
- if (umode) {
- /*
- * Couldn't restore all register contents while in
- * user mode -> mark task for termination.
- */
- mcck->kill_task = 1;
- mcck->mcck_code = *(unsigned long long *) mci;
- set_thread_flag(TIF_MCCK_PENDING);
- }
- else
- /*
- * Couldn't restore all register contents while in
- * kernel mode -> stopping machine.
- */
- s390_handle_damage("unable to revalidate registers.");
- }
-
- if (mci->cd) {
- /* Timing facility damage */
- s390_handle_damage("TOD clock damaged");
- }
-
- if (mci->ed && mci->ec) {
- /* External damage */
- if (S390_lowcore.external_damage_code & (1U << ED_ETR_SYNC))
- etr_sync_check();
- if (S390_lowcore.external_damage_code & (1U << ED_ETR_SWITCH))
- etr_switch_to_local();
- if (S390_lowcore.external_damage_code & (1U << ED_STP_SYNC))
- stp_sync_check();
- if (S390_lowcore.external_damage_code & (1U << ED_STP_ISLAND))
- stp_island_check();
- }
-
- if (mci->se)
- /* Storage error uncorrected */
- s390_handle_damage("received storage error uncorrected "
- "machine check.");
-
- if (mci->ke)
- /* Storage key-error uncorrected */
- s390_handle_damage("received storage key-error uncorrected "
- "machine check.");
-
- if (mci->ds && mci->fa)
- /* Storage degradation */
- s390_handle_damage("received storage degradation machine "
- "check.");
-
- if (mci->cp) {
- /* Channel report word pending */
- mcck->channel_report = 1;
- set_thread_flag(TIF_MCCK_PENDING);
- }
-
- if (mci->w) {
- /* Warning pending */
- mcck->warning = 1;
- set_thread_flag(TIF_MCCK_PENDING);
- }
- lockdep_on();
-}
-
-/*
- * s390_init_machine_check
- *
- * initialize machine check handling
- */
-static int
-machine_check_init(void)
-{
- init_MUTEX_LOCKED(&m_sem);
- ctl_set_bit(14, 25); /* enable external damage MCH */
- ctl_set_bit(14, 27); /* enable system recovery MCH */
-#ifdef CONFIG_MACHCHK_WARNING
- ctl_set_bit(14, 24); /* enable warning MCH */
-#endif
- return 0;
-}
-
-/*
- * Initialize the machine check handler really early to be able to
- * catch all machine checks that happen during boot
- */
-arch_initcall(machine_check_init);
-
-/*
- * Machine checks for the channel subsystem must be enabled
- * after the channel subsystem is initialized
- */
-static int __init
-machine_check_crw_init (void)
-{
- struct task_struct *task;
-
- task = kthread_run(s390_collect_crw_info, &m_sem, "kmcheck");
- if (IS_ERR(task))
- return PTR_ERR(task);
- ctl_set_bit(14, 28); /* enable channel report MCH */
- return 0;
-}
-
-device_initcall (machine_check_crw_init);
diff --git a/drivers/s390/s390mach.h b/drivers/s390/s390mach.h
deleted file mode 100644
index d39f8b697d2..00000000000
--- a/drivers/s390/s390mach.h
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * drivers/s390/s390mach.h
- * S/390 data definitions for machine check processing
- *
- * S390 version
- * Copyright (C) 2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Ingo Adlung (adlung@de.ibm.com)
- */
-
-#ifndef __s390mach_h
-#define __s390mach_h
-
-#include <asm/types.h>
-
-struct mci {
- __u32 sd : 1; /* 00 system damage */
- __u32 pd : 1; /* 01 instruction-processing damage */
- __u32 sr : 1; /* 02 system recovery */
- __u32 to_be_defined_1 : 1; /* 03 */
- __u32 cd : 1; /* 04 timing-facility damage */
- __u32 ed : 1; /* 05 external damage */
- __u32 to_be_defined_2 : 1; /* 06 */
- __u32 dg : 1; /* 07 degradation */
- __u32 w : 1; /* 08 warning pending */
- __u32 cp : 1; /* 09 channel-report pending */
- __u32 sp : 1; /* 10 service-processor damage */
- __u32 ck : 1; /* 11 channel-subsystem damage */
- __u32 to_be_defined_3 : 2; /* 12-13 */
- __u32 b : 1; /* 14 backed up */
- __u32 to_be_defined_4 : 1; /* 15 */
- __u32 se : 1; /* 16 storage error uncorrected */
- __u32 sc : 1; /* 17 storage error corrected */
- __u32 ke : 1; /* 18 storage-key error uncorrected */
- __u32 ds : 1; /* 19 storage degradation */
- __u32 wp : 1; /* 20 psw mwp validity */
- __u32 ms : 1; /* 21 psw mask and key validity */
- __u32 pm : 1; /* 22 psw program mask and cc validity */
- __u32 ia : 1; /* 23 psw instruction address validity */
- __u32 fa : 1; /* 24 failing storage address validity */
- __u32 to_be_defined_5 : 1; /* 25 */
- __u32 ec : 1; /* 26 external damage code validity */
- __u32 fp : 1; /* 27 floating point register validity */
- __u32 gr : 1; /* 28 general register validity */
- __u32 cr : 1; /* 29 control register validity */
- __u32 to_be_defined_6 : 1; /* 30 */
- __u32 st : 1; /* 31 storage logical validity */
- __u32 ie : 1; /* 32 indirect storage error */
- __u32 ar : 1; /* 33 access register validity */
- __u32 da : 1; /* 34 delayed access exception */
- __u32 to_be_defined_7 : 7; /* 35-41 */
- __u32 pr : 1; /* 42 tod programmable register validity */
- __u32 fc : 1; /* 43 fp control register validity */
- __u32 ap : 1; /* 44 ancillary report */
- __u32 to_be_defined_8 : 1; /* 45 */
- __u32 ct : 1; /* 46 cpu timer validity */
- __u32 cc : 1; /* 47 clock comparator validity */
- __u32 to_be_defined_9 : 16; /* 47-63 */
-};
-
-/*
- * Channel Report Word
- */
-struct crw {
- __u32 res1 : 1; /* reserved zero */
- __u32 slct : 1; /* solicited */
- __u32 oflw : 1; /* overflow */
- __u32 chn : 1; /* chained */
- __u32 rsc : 4; /* reporting source code */
- __u32 anc : 1; /* ancillary report */
- __u32 res2 : 1; /* reserved zero */
- __u32 erc : 6; /* error-recovery code */
- __u32 rsid : 16; /* reporting-source ID */
-} __attribute__ ((packed));
-
-typedef void (*crw_handler_t)(struct crw *, struct crw *, int);
-
-extern int s390_register_crw_handler(int rsc, crw_handler_t handler);
-extern void s390_unregister_crw_handler(int rsc);
-
-#define NR_RSCS 16
-
-#define CRW_RSC_MONITOR 0x2 /* monitoring facility */
-#define CRW_RSC_SCH 0x3 /* subchannel */
-#define CRW_RSC_CPATH 0x4 /* channel path */
-#define CRW_RSC_CONFIG 0x9 /* configuration-alert facility */
-#define CRW_RSC_CSS 0xB /* channel subsystem */
-
-#define CRW_ERC_EVENT 0x00 /* event information pending */
-#define CRW_ERC_AVAIL 0x01 /* available */
-#define CRW_ERC_INIT 0x02 /* initialized */
-#define CRW_ERC_TERROR 0x03 /* temporary error */
-#define CRW_ERC_IPARM 0x04 /* installed parm initialized */
-#define CRW_ERC_TERM 0x05 /* terminal */
-#define CRW_ERC_PERRN 0x06 /* perm. error, fac. not init */
-#define CRW_ERC_PERRI 0x07 /* perm. error, facility init */
-#define CRW_ERC_PMOD 0x08 /* installed parameters modified */
-
-static inline int stcrw(struct crw *pcrw )
-{
- int ccode;
-
- __asm__ __volatile__(
- "stcrw 0(%2)\n\t"
- "ipm %0\n\t"
- "srl %0,28\n\t"
- : "=d" (ccode), "=m" (*pcrw)
- : "a" (pcrw)
- : "cc" );
- return ccode;
-}
-
-#define ED_ETR_SYNC 12 /* External damage ETR sync check */
-#define ED_ETR_SWITCH 13 /* External damage ETR switch to local */
-
-#define ED_STP_SYNC 7 /* External damage STP sync check */
-#define ED_STP_ISLAND 6 /* External damage STP island check */
-
-struct pt_regs;
-
-void s390_handle_mcck(void);
-void s390_do_machine_check(struct pt_regs *regs);
-#endif /* __s390mach */
diff --git a/drivers/s390/sysinfo.c b/drivers/s390/sysinfo.c
deleted file mode 100644
index 0eea9078138..00000000000
--- a/drivers/s390/sysinfo.c
+++ /dev/null
@@ -1,469 +0,0 @@
-/*
- * drivers/s390/sysinfo.c
- *
- * Copyright IBM Corp. 2001, 2008
- * Author(s): Ulrich Weigand (Ulrich.Weigand@de.ibm.com)
- * Martin Schwidefsky <schwidefsky@de.ibm.com>
- */
-
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/module.h>
-#include <asm/ebcdic.h>
-#include <asm/sysinfo.h>
-#include <asm/cpcmd.h>
-
-/* Sigh, math-emu. Don't ask. */
-#include <asm/sfp-util.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/single.h>
-
-static inline int stsi_0(void)
-{
- int rc = stsi (NULL, 0, 0, 0);
- return rc == -ENOSYS ? rc : (((unsigned int) rc) >> 28);
-}
-
-static int stsi_1_1_1(struct sysinfo_1_1_1 *info, char *page, int len)
-{
- if (stsi(info, 1, 1, 1) == -ENOSYS)
- return len;
-
- EBCASC(info->manufacturer, sizeof(info->manufacturer));
- EBCASC(info->type, sizeof(info->type));
- EBCASC(info->model, sizeof(info->model));
- EBCASC(info->sequence, sizeof(info->sequence));
- EBCASC(info->plant, sizeof(info->plant));
- EBCASC(info->model_capacity, sizeof(info->model_capacity));
- EBCASC(info->model_perm_cap, sizeof(info->model_perm_cap));
- EBCASC(info->model_temp_cap, sizeof(info->model_temp_cap));
- len += sprintf(page + len, "Manufacturer: %-16.16s\n",
- info->manufacturer);
- len += sprintf(page + len, "Type: %-4.4s\n",
- info->type);
- if (info->model[0] != '\0')
- /*
- * Sigh: the model field has been renamed with System z9
- * to model_capacity and a new model field has been added
- * after the plant field. To avoid confusing older programs
- * the "Model:" prints "model_capacity model" or just
- * "model_capacity" if the model string is empty .
- */
- len += sprintf(page + len,
- "Model: %-16.16s %-16.16s\n",
- info->model_capacity, info->model);
- else
- len += sprintf(page + len, "Model: %-16.16s\n",
- info->model_capacity);
- len += sprintf(page + len, "Sequence Code: %-16.16s\n",
- info->sequence);
- len += sprintf(page + len, "Plant: %-4.4s\n",
- info->plant);
- len += sprintf(page + len, "Model Capacity: %-16.16s %08u\n",
- info->model_capacity, *(u32 *) info->model_cap_rating);
- if (info->model_perm_cap[0] != '\0')
- len += sprintf(page + len,
- "Model Perm. Capacity: %-16.16s %08u\n",
- info->model_perm_cap,
- *(u32 *) info->model_perm_cap_rating);
- if (info->model_temp_cap[0] != '\0')
- len += sprintf(page + len,
- "Model Temp. Capacity: %-16.16s %08u\n",
- info->model_temp_cap,
- *(u32 *) info->model_temp_cap_rating);
- return len;
-}
-
-#if 0 /* Currently unused */
-static int stsi_1_2_1(struct sysinfo_1_2_1 *info, char *page, int len)
-{
- if (stsi(info, 1, 2, 1) == -ENOSYS)
- return len;
-
- len += sprintf(page + len, "\n");
- EBCASC(info->sequence, sizeof(info->sequence));
- EBCASC(info->plant, sizeof(info->plant));
- len += sprintf(page + len, "Sequence Code of CPU: %-16.16s\n",
- info->sequence);
- len += sprintf(page + len, "Plant of CPU: %-16.16s\n",
- info->plant);
- return len;
-}
-#endif
-
-static int stsi_1_2_2(struct sysinfo_1_2_2 *info, char *page, int len)
-{
- struct sysinfo_1_2_2_extension *ext;
- int i;
-
- if (stsi(info, 1, 2, 2) == -ENOSYS)
- return len;
- ext = (struct sysinfo_1_2_2_extension *)
- ((unsigned long) info + info->acc_offset);
-
- len += sprintf(page + len, "\n");
- len += sprintf(page + len, "CPUs Total: %d\n",
- info->cpus_total);
- len += sprintf(page + len, "CPUs Configured: %d\n",
- info->cpus_configured);
- len += sprintf(page + len, "CPUs Standby: %d\n",
- info->cpus_standby);
- len += sprintf(page + len, "CPUs Reserved: %d\n",
- info->cpus_reserved);
-
- if (info->format == 1) {
- /*
- * Sigh 2. According to the specification the alternate
- * capability field is a 32 bit floating point number
- * if the higher order 8 bits are not zero. Printing
- * a floating point number in the kernel is a no-no,
- * always print the number as 32 bit unsigned integer.
- * The user-space needs to know about the strange
- * encoding of the alternate cpu capability.
- */
- len += sprintf(page + len, "Capability: %u %u\n",
- info->capability, ext->alt_capability);
- for (i = 2; i <= info->cpus_total; i++)
- len += sprintf(page + len,
- "Adjustment %02d-way: %u %u\n",
- i, info->adjustment[i-2],
- ext->alt_adjustment[i-2]);
-
- } else {
- len += sprintf(page + len, "Capability: %u\n",
- info->capability);
- for (i = 2; i <= info->cpus_total; i++)
- len += sprintf(page + len,
- "Adjustment %02d-way: %u\n",
- i, info->adjustment[i-2]);
- }
-
- if (info->secondary_capability != 0)
- len += sprintf(page + len, "Secondary Capability: %d\n",
- info->secondary_capability);
-
- return len;
-}
-
-#if 0 /* Currently unused */
-static int stsi_2_2_1(struct sysinfo_2_2_1 *info, char *page, int len)
-{
- if (stsi(info, 2, 2, 1) == -ENOSYS)
- return len;
-
- len += sprintf(page + len, "\n");
- EBCASC (info->sequence, sizeof(info->sequence));
- EBCASC (info->plant, sizeof(info->plant));
- len += sprintf(page + len, "Sequence Code of logical CPU: %-16.16s\n",
- info->sequence);
- len += sprintf(page + len, "Plant of logical CPU: %-16.16s\n",
- info->plant);
- return len;
-}
-#endif
-
-static int stsi_2_2_2(struct sysinfo_2_2_2 *info, char *page, int len)
-{
- if (stsi(info, 2, 2, 2) == -ENOSYS)
- return len;
-
- EBCASC (info->name, sizeof(info->name));
-
- len += sprintf(page + len, "\n");
- len += sprintf(page + len, "LPAR Number: %d\n",
- info->lpar_number);
-
- len += sprintf(page + len, "LPAR Characteristics: ");
- if (info->characteristics & LPAR_CHAR_DEDICATED)
- len += sprintf(page + len, "Dedicated ");
- if (info->characteristics & LPAR_CHAR_SHARED)
- len += sprintf(page + len, "Shared ");
- if (info->characteristics & LPAR_CHAR_LIMITED)
- len += sprintf(page + len, "Limited ");
- len += sprintf(page + len, "\n");
-
- len += sprintf(page + len, "LPAR Name: %-8.8s\n",
- info->name);
-
- len += sprintf(page + len, "LPAR Adjustment: %d\n",
- info->caf);
-
- len += sprintf(page + len, "LPAR CPUs Total: %d\n",
- info->cpus_total);
- len += sprintf(page + len, "LPAR CPUs Configured: %d\n",
- info->cpus_configured);
- len += sprintf(page + len, "LPAR CPUs Standby: %d\n",
- info->cpus_standby);
- len += sprintf(page + len, "LPAR CPUs Reserved: %d\n",
- info->cpus_reserved);
- len += sprintf(page + len, "LPAR CPUs Dedicated: %d\n",
- info->cpus_dedicated);
- len += sprintf(page + len, "LPAR CPUs Shared: %d\n",
- info->cpus_shared);
- return len;
-}
-
-static int stsi_3_2_2(struct sysinfo_3_2_2 *info, char *page, int len)
-{
- int i;
-
- if (stsi(info, 3, 2, 2) == -ENOSYS)
- return len;
- for (i = 0; i < info->count; i++) {
- EBCASC (info->vm[i].name, sizeof(info->vm[i].name));
- EBCASC (info->vm[i].cpi, sizeof(info->vm[i].cpi));
- len += sprintf(page + len, "\n");
- len += sprintf(page + len, "VM%02d Name: %-8.8s\n",
- i, info->vm[i].name);
- len += sprintf(page + len, "VM%02d Control Program: %-16.16s\n",
- i, info->vm[i].cpi);
-
- len += sprintf(page + len, "VM%02d Adjustment: %d\n",
- i, info->vm[i].caf);
-
- len += sprintf(page + len, "VM%02d CPUs Total: %d\n",
- i, info->vm[i].cpus_total);
- len += sprintf(page + len, "VM%02d CPUs Configured: %d\n",
- i, info->vm[i].cpus_configured);
- len += sprintf(page + len, "VM%02d CPUs Standby: %d\n",
- i, info->vm[i].cpus_standby);
- len += sprintf(page + len, "VM%02d CPUs Reserved: %d\n",
- i, info->vm[i].cpus_reserved);
- }
- return len;
-}
-
-
-static int proc_read_sysinfo(char *page, char **start,
- off_t off, int count,
- int *eof, void *data)
-{
- unsigned long info = get_zeroed_page (GFP_KERNEL);
- int level, len;
-
- if (!info)
- return 0;
-
- len = 0;
- level = stsi_0();
- if (level >= 1)
- len = stsi_1_1_1((struct sysinfo_1_1_1 *) info, page, len);
-
- if (level >= 1)
- len = stsi_1_2_2((struct sysinfo_1_2_2 *) info, page, len);
-
- if (level >= 2)
- len = stsi_2_2_2((struct sysinfo_2_2_2 *) info, page, len);
-
- if (level >= 3)
- len = stsi_3_2_2((struct sysinfo_3_2_2 *) info, page, len);
-
- free_page (info);
- return len;
-}
-
-static __init int create_proc_sysinfo(void)
-{
- create_proc_read_entry("sysinfo", 0444, NULL,
- proc_read_sysinfo, NULL);
- return 0;
-}
-
-__initcall(create_proc_sysinfo);
-
-/*
- * Service levels interface.
- */
-
-static DECLARE_RWSEM(service_level_sem);
-static LIST_HEAD(service_level_list);
-
-int register_service_level(struct service_level *slr)
-{
- struct service_level *ptr;
-
- down_write(&service_level_sem);
- list_for_each_entry(ptr, &service_level_list, list)
- if (ptr == slr) {
- up_write(&service_level_sem);
- return -EEXIST;
- }
- list_add_tail(&slr->list, &service_level_list);
- up_write(&service_level_sem);
- return 0;
-}
-EXPORT_SYMBOL(register_service_level);
-
-int unregister_service_level(struct service_level *slr)
-{
- struct service_level *ptr, *next;
- int rc = -ENOENT;
-
- down_write(&service_level_sem);
- list_for_each_entry_safe(ptr, next, &service_level_list, list) {
- if (ptr != slr)
- continue;
- list_del(&ptr->list);
- rc = 0;
- break;
- }
- up_write(&service_level_sem);
- return rc;
-}
-EXPORT_SYMBOL(unregister_service_level);
-
-static void *service_level_start(struct seq_file *m, loff_t *pos)
-{
- down_read(&service_level_sem);
- return seq_list_start(&service_level_list, *pos);
-}
-
-static void *service_level_next(struct seq_file *m, void *p, loff_t *pos)
-{
- return seq_list_next(p, &service_level_list, pos);
-}
-
-static void service_level_stop(struct seq_file *m, void *p)
-{
- up_read(&service_level_sem);
-}
-
-static int service_level_show(struct seq_file *m, void *p)
-{
- struct service_level *slr;
-
- slr = list_entry(p, struct service_level, list);
- slr->seq_print(m, slr);
- return 0;
-}
-
-static const struct seq_operations service_level_seq_ops = {
- .start = service_level_start,
- .next = service_level_next,
- .stop = service_level_stop,
- .show = service_level_show
-};
-
-static int service_level_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &service_level_seq_ops);
-}
-
-static const struct file_operations service_level_ops = {
- .open = service_level_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release
-};
-
-static void service_level_vm_print(struct seq_file *m,
- struct service_level *slr)
-{
- char *query_buffer, *str;
-
- query_buffer = kmalloc(1024, GFP_KERNEL | GFP_DMA);
- if (!query_buffer)
- return;
- cpcmd("QUERY CPLEVEL", query_buffer, 1024, NULL);
- str = strchr(query_buffer, '\n');
- if (str)
- *str = 0;
- seq_printf(m, "VM: %s\n", query_buffer);
- kfree(query_buffer);
-}
-
-static struct service_level service_level_vm = {
- .seq_print = service_level_vm_print
-};
-
-static __init int create_proc_service_level(void)
-{
- proc_create("service_levels", 0, NULL, &service_level_ops);
- if (MACHINE_IS_VM)
- register_service_level(&service_level_vm);
- return 0;
-}
-
-subsys_initcall(create_proc_service_level);
-
-/*
- * Bogomips calculation based on cpu capability.
- */
-
-int get_cpu_capability(unsigned int *capability)
-{
- struct sysinfo_1_2_2 *info;
- int rc;
-
- info = (void *) get_zeroed_page(GFP_KERNEL);
- if (!info)
- return -ENOMEM;
- rc = stsi(info, 1, 2, 2);
- if (rc == -ENOSYS)
- goto out;
- rc = 0;
- *capability = info->capability;
-out:
- free_page((unsigned long) info);
- return rc;
-}
-
-/*
- * CPU capability might have changed. Therefore recalculate loops_per_jiffy.
- */
-void s390_adjust_jiffies(void)
-{
- struct sysinfo_1_2_2 *info;
- const unsigned int fmil = 0x4b189680; /* 1e7 as 32-bit float. */
- FP_DECL_S(SA); FP_DECL_S(SB); FP_DECL_S(SR);
- FP_DECL_EX;
- unsigned int capability;
-
- info = (void *) get_zeroed_page(GFP_KERNEL);
- if (!info)
- return;
-
- if (stsi(info, 1, 2, 2) != -ENOSYS) {
- /*
- * Major sigh. The cpu capability encoding is "special".
- * If the first 9 bits of info->capability are 0 then it
- * is a 32 bit unsigned integer in the range 0 .. 2^23.
- * If the first 9 bits are != 0 then it is a 32 bit float.
- * In addition a lower value indicates a proportionally
- * higher cpu capacity. Bogomips are the other way round.
- * To get to a halfway suitable number we divide 1e7
- * by the cpu capability number. Yes, that means a floating
- * point division .. math-emu here we come :-)
- */
- FP_UNPACK_SP(SA, &fmil);
- if ((info->capability >> 23) == 0)
- FP_FROM_INT_S(SB, info->capability, 32, int);
- else
- FP_UNPACK_SP(SB, &info->capability);
- FP_DIV_S(SR, SA, SB);
- FP_TO_INT_S(capability, SR, 32, 0);
- } else
- /*
- * Really old machine without stsi block for basic
- * cpu information. Report 42.0 bogomips.
- */
- capability = 42;
- loops_per_jiffy = capability * (500000/HZ);
- free_page((unsigned long) info);
-}
-
-/*
- * calibrate the delay loop
- */
-void __cpuinit calibrate_delay(void)
-{
- s390_adjust_jiffies();
- /* Print the good old Bogomips line .. */
- printk(KERN_DEBUG "Calibrating delay loop (skipped)... "
- "%lu.%02lu BogoMIPS preset\n", loops_per_jiffy/(500000/HZ),
- (loops_per_jiffy/(5000/HZ)) % 100);
-}