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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:27 +0000
commit34996e42f82bfd60bc2c191e5cae3c6ab233ec6c (patch)
tree62db60558cbf089714b48daeabca82bf2b20b20e /drivers/s390/block/dasd.c
parentAdding debian version 6.8.12-1. (diff)
downloadlinux-34996e42f82bfd60bc2c191e5cae3c6ab233ec6c.tar.xz
linux-34996e42f82bfd60bc2c191e5cae3c6ab233ec6c.zip
Merging upstream version 6.9.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/s390/block/dasd.c')
-rw-r--r--drivers/s390/block/dasd.c139
1 files changed, 67 insertions, 72 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 30851faade..0a97cfedd7 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -27,9 +27,6 @@
#include <asm/itcw.h>
#include <asm/diag.h>
-/* This is ugly... */
-#define PRINTK_HEADER "dasd:"
-
#include "dasd_int.h"
/*
* SECTION: Constant definitions to be used within this file
@@ -310,39 +307,57 @@ static int dasd_state_basic_to_known(struct dasd_device *device)
*/
static int dasd_state_basic_to_ready(struct dasd_device *device)
{
- int rc;
- struct dasd_block *block;
- struct gendisk *disk;
+ struct dasd_block *block = device->block;
+ struct queue_limits lim;
+ int rc = 0;
- rc = 0;
- block = device->block;
/* make disk known with correct capacity */
- if (block) {
- if (block->base->discipline->do_analysis != NULL)
- rc = block->base->discipline->do_analysis(block);
- if (rc) {
- if (rc != -EAGAIN) {
- device->state = DASD_STATE_UNFMT;
- disk = device->block->gdp;
- kobject_uevent(&disk_to_dev(disk)->kobj,
- KOBJ_CHANGE);
- goto out;
- }
- return rc;
- }
- if (device->discipline->setup_blk_queue)
- device->discipline->setup_blk_queue(block);
- set_capacity(block->gdp,
- block->blocks << block->s2b_shift);
+ if (!block) {
device->state = DASD_STATE_READY;
- rc = dasd_scan_partitions(block);
- if (rc) {
- device->state = DASD_STATE_BASIC;
+ goto out;
+ }
+
+ if (block->base->discipline->do_analysis != NULL)
+ rc = block->base->discipline->do_analysis(block);
+ if (rc) {
+ if (rc == -EAGAIN)
return rc;
- }
- } else {
- device->state = DASD_STATE_READY;
+ device->state = DASD_STATE_UNFMT;
+ kobject_uevent(&disk_to_dev(device->block->gdp)->kobj,
+ KOBJ_CHANGE);
+ goto out;
+ }
+
+ lim = queue_limits_start_update(block->gdp->queue);
+ lim.max_dev_sectors = device->discipline->max_sectors(block);
+ lim.max_hw_sectors = lim.max_dev_sectors;
+ lim.logical_block_size = block->bp_block;
+
+ if (device->discipline->has_discard) {
+ unsigned int max_bytes;
+
+ lim.discard_granularity = block->bp_block;
+
+ /* Calculate max_discard_sectors and make it PAGE aligned */
+ max_bytes = USHRT_MAX * block->bp_block;
+ max_bytes = ALIGN_DOWN(max_bytes, PAGE_SIZE);
+
+ lim.max_hw_discard_sectors = max_bytes / block->bp_block;
+ lim.max_write_zeroes_sectors = lim.max_hw_discard_sectors;
+ }
+ rc = queue_limits_commit_update(block->gdp->queue, &lim);
+ if (rc)
+ return rc;
+
+ set_capacity(block->gdp, block->blocks << block->s2b_shift);
+ device->state = DASD_STATE_READY;
+
+ rc = dasd_scan_partitions(block);
+ if (rc) {
+ device->state = DASD_STATE_BASIC;
+ return rc;
}
+
out:
if (device->discipline->basic_to_ready)
rc = device->discipline->basic_to_ready(device);
@@ -409,7 +424,7 @@ dasd_state_ready_to_online(struct dasd_device * device)
KOBJ_CHANGE);
return 0;
}
- disk_uevent(device->block->bdev_handle->bdev->bd_disk,
+ disk_uevent(file_bdev(device->block->bdev_file)->bd_disk,
KOBJ_CHANGE);
}
return 0;
@@ -430,7 +445,7 @@ static int dasd_state_online_to_ready(struct dasd_device *device)
device->state = DASD_STATE_READY;
if (device->block && !(device->features & DASD_FEATURE_USERAW))
- disk_uevent(device->block->bdev_handle->bdev->bd_disk,
+ disk_uevent(file_bdev(device->block->bdev_file)->bd_disk,
KOBJ_CHANGE);
return 0;
}
@@ -1298,7 +1313,6 @@ 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);
@@ -1337,10 +1351,8 @@ int dasd_term_IO(struct dasd_ccw_req *cqr)
rc = 0;
break;
default:
- /* 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);
+ dev_err(&device->cdev->dev,
+ "Unexpected error during request termination %d\n", rc);
BUG();
break;
}
@@ -1359,7 +1371,6 @@ 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);
@@ -1379,10 +1390,8 @@ int dasd_start_IO(struct dasd_ccw_req *cqr)
return -EPERM;
}
if (cqr->retries < 0) {
- /* 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);
+ dev_err(&device->cdev->dev,
+ "Start I/O ran out of retries\n");
cqr->status = DASD_CQR_ERROR;
return -EIO;
}
@@ -1460,11 +1469,8 @@ int dasd_start_IO(struct dasd_ccw_req *cqr)
"not accessible");
break;
default:
- /* 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);
+ "Unexpected error during request start %d", rc);
BUG();
break;
}
@@ -1901,8 +1907,6 @@ static void __dasd_device_process_ccw_queue(struct dasd_device *device,
static void __dasd_process_cqr(struct dasd_device *device,
struct dasd_ccw_req *cqr)
{
- char errorstring[ERRORLENGTH];
-
switch (cqr->status) {
case DASD_CQR_SUCCESS:
cqr->status = DASD_CQR_DONE;
@@ -1914,11 +1918,8 @@ static void __dasd_process_cqr(struct dasd_device *device,
cqr->status = DASD_CQR_TERMINATED;
break;
default:
- /* 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);
+ "Unexpected CQR status %02x", cqr->status);
BUG();
}
if (cqr->callback)
@@ -1983,16 +1984,14 @@ static void __dasd_device_check_expire(struct dasd_device *device)
if (device->discipline->term_IO(cqr) != 0) {
/* Hmpf, try again in 5 sec */
dev_err(&device->cdev->dev,
- "cqr %p timed out (%lus) but cannot be "
- "ended, retrying in 5 s\n",
- cqr, (cqr->expires/HZ));
+ "CQR timed out (%lus) but cannot be ended, retrying in 5s\n",
+ (cqr->expires / HZ));
cqr->expires += 5*HZ;
dasd_device_set_timer(device, 5*HZ);
} else {
dev_err(&device->cdev->dev,
- "cqr %p timed out (%lus), %i retries "
- "remaining\n", cqr, (cqr->expires/HZ),
- cqr->retries);
+ "CQR timed out (%lus), %i retries remaining\n",
+ (cqr->expires / HZ), cqr->retries);
}
__dasd_device_check_autoquiesce_timeout(device, cqr);
}
@@ -2113,8 +2112,7 @@ int dasd_flush_device_queue(struct dasd_device *device)
if (rc) {
/* unable to terminate requeust */
dev_err(&device->cdev->dev,
- "Flushing the DASD request queue "
- "failed for request %p\n", cqr);
+ "Flushing the DASD request queue failed\n");
/* stop flush processing */
goto finished;
}
@@ -2630,8 +2628,7 @@ static int __dasd_cancel_req(struct dasd_ccw_req *cqr)
rc = device->discipline->term_IO(cqr);
if (rc) {
dev_err(&device->cdev->dev,
- "Cancelling request %p failed with rc=%d\n",
- cqr, rc);
+ "Cancelling request failed with rc=%d\n", rc);
} else {
cqr->stopclk = get_tod_clock();
}
@@ -3584,7 +3581,7 @@ int dasd_generic_set_offline(struct ccw_device *cdev)
* in the other openers.
*/
if (device->block) {
- max_count = device->block->bdev_handle ? 0 : -1;
+ max_count = device->block->bdev_file ? 0 : -1;
open_count = atomic_read(&device->block->open_count);
if (open_count > max_count) {
if (open_count > 0)
@@ -3629,8 +3626,8 @@ int dasd_generic_set_offline(struct ccw_device *cdev)
* so sync bdev first and then wait for our queues to become
* empty
*/
- if (device->block && device->block->bdev_handle)
- bdev_mark_dead(device->block->bdev_handle->bdev, false);
+ if (device->block && device->block->bdev_file)
+ bdev_mark_dead(file_bdev(device->block->bdev_file), false);
dasd_schedule_device_bh(device);
rc = wait_event_interruptible(shutdown_waitq,
_wait_for_empty_queues(device));
@@ -3972,16 +3969,14 @@ static struct dasd_ccw_req *dasd_generic_build_rdc(struct dasd_device *device,
NULL);
if (IS_ERR(cqr)) {
- /* 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");
+ DBF_EVENT_DEVID(DBF_WARNING, device->cdev, "%s",
+ "Could not allocate RDC request");
return cqr;
}
ccw = cqr->cpaddr;
ccw->cmd_code = CCW_CMD_RDC;
- ccw->cda = (__u32)virt_to_phys(cqr->data);
+ ccw->cda = virt_to_dma32(cqr->data);
ccw->flags = 0;
ccw->count = rdc_buffer_size;
cqr->startdev = device;
@@ -4025,7 +4020,7 @@ char *dasd_get_sense(struct irb *irb)
if (scsw_is_tm(&irb->scsw) && (irb->scsw.tm.fcxs == 0x01)) {
if (irb->scsw.tm.tcw)
- tsb = tcw_get_tsb(phys_to_virt(irb->scsw.tm.tcw));
+ tsb = tcw_get_tsb(dma32_to_virt(irb->scsw.tm.tcw));
if (tsb && tsb->length == 64 && tsb->flags)
switch (tsb->flags & 0x07) {
case 1: /* tsa_iostat */