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Diffstat (limited to 'drivers/s390/block')
-rw-r--r--drivers/s390/block/Kconfig2
-rw-r--r--drivers/s390/block/dasd.c30
-rw-r--r--drivers/s390/block/dasd_3990_erp.c17
-rw-r--r--drivers/s390/block/dasd_alias.c13
-rw-r--r--drivers/s390/block/dasd_devmap.c43
-rw-r--r--drivers/s390/block/dasd_diag.c1
-rw-r--r--drivers/s390/block/dasd_eckd.c27
-rw-r--r--drivers/s390/block/dcssblk.c2
-rw-r--r--drivers/s390/block/scm_blk.c4
-rw-r--r--drivers/s390/block/xpram.c4
10 files changed, 102 insertions, 41 deletions
diff --git a/drivers/s390/block/Kconfig b/drivers/s390/block/Kconfig
index 1444333210c7..9ac7574e3cfb 100644
--- a/drivers/s390/block/Kconfig
+++ b/drivers/s390/block/Kconfig
@@ -15,8 +15,8 @@ config BLK_DEV_XPRAM
config DCSSBLK
def_tristate m
- select DAX
select FS_DAX_LIMITED
+ select DAX_DRIVER
prompt "DCSSBLK support"
depends on S390 && BLOCK
help
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index a7c15f0085e2..04143c08bd6e 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -2581,8 +2581,6 @@ int dasd_cancel_req(struct dasd_ccw_req *cqr)
case DASD_CQR_QUEUED:
/* request was not started - just set to cleared */
cqr->status = DASD_CQR_CLEARED;
- if (cqr->callback_data == DASD_SLEEPON_START_TAG)
- cqr->callback_data = DASD_SLEEPON_END_TAG;
break;
case DASD_CQR_IN_IO:
/* request in IO - terminate IO and release again */
@@ -3210,7 +3208,7 @@ static void dasd_setup_queue(struct dasd_block *block)
} else {
max = block->base->discipline->max_blocks << block->s2b_shift;
}
- queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q);
+ blk_queue_flag_set(QUEUE_FLAG_NONROT, q);
q->limits.max_dev_sectors = max;
blk_queue_logical_block_size(q, logical_block_size);
blk_queue_max_hw_sectors(q, max);
@@ -3233,7 +3231,7 @@ static void dasd_setup_queue(struct dasd_block *block)
blk_queue_max_discard_sectors(q, max_discard_sectors);
blk_queue_max_write_zeroes_sectors(q, max_discard_sectors);
- queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
+ blk_queue_flag_set(QUEUE_FLAG_DISCARD, q);
}
}
@@ -3902,9 +3900,12 @@ static int dasd_generic_requeue_all_requests(struct dasd_device *device)
wait_event(dasd_flush_wq,
(cqr->status != DASD_CQR_CLEAR_PENDING));
- /* mark sleepon requests as ended */
- if (cqr->callback_data == DASD_SLEEPON_START_TAG)
- cqr->callback_data = DASD_SLEEPON_END_TAG;
+ /*
+ * requeue requests to blocklayer will only work
+ * for block device requests
+ */
+ if (_dasd_requeue_request(cqr))
+ continue;
/* remove requests from device and block queue */
list_del_init(&cqr->devlist);
@@ -3918,14 +3919,12 @@ static int dasd_generic_requeue_all_requests(struct dasd_device *device)
}
/*
- * requeue requests to blocklayer will only work
- * for block device requests
+ * _dasd_requeue_request already checked for a valid
+ * blockdevice, no need to check again
+ * all erp requests (cqr->refers) have a cqr->block
+ * pointer copy from the original cqr
*/
- if (_dasd_requeue_request(cqr))
- continue;
-
- if (cqr->block)
- list_del_init(&cqr->blocklist);
+ list_del_init(&cqr->blocklist);
cqr->block->base->discipline->free_cp(
cqr, (struct request *) cqr->callback_data);
}
@@ -3940,8 +3939,7 @@ static int dasd_generic_requeue_all_requests(struct dasd_device *device)
list_splice_tail(&requeue_queue, &device->ccw_queue);
spin_unlock_irq(get_ccwdev_lock(device->cdev));
}
- /* wake up generic waitqueue for eventually ended sleepon requests */
- wake_up(&generic_waitq);
+ dasd_schedule_device_bh(device);
return rc;
}
diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c
index ee14d8e45c97..ee73b0607e47 100644
--- a/drivers/s390/block/dasd_3990_erp.c
+++ b/drivers/s390/block/dasd_3990_erp.c
@@ -2214,15 +2214,28 @@ static void dasd_3990_erp_disable_path(struct dasd_device *device, __u8 lpum)
{
int pos = pathmask_to_pos(lpum);
+ if (!(device->features & DASD_FEATURE_PATH_AUTODISABLE)) {
+ dev_err(&device->cdev->dev,
+ "Path %x.%02x (pathmask %02x) is operational despite excessive IFCCs\n",
+ device->path[pos].cssid, device->path[pos].chpid, lpum);
+ goto out;
+ }
+
/* no remaining path, cannot disable */
- if (!(dasd_path_get_opm(device) & ~lpum))
- return;
+ if (!(dasd_path_get_opm(device) & ~lpum)) {
+ dev_err(&device->cdev->dev,
+ "Last path %x.%02x (pathmask %02x) is operational despite excessive IFCCs\n",
+ device->path[pos].cssid, device->path[pos].chpid, lpum);
+ goto out;
+ }
dev_err(&device->cdev->dev,
"Path %x.%02x (pathmask %02x) is disabled - IFCC threshold exceeded\n",
device->path[pos].cssid, device->path[pos].chpid, lpum);
dasd_path_remove_opm(device, lpum);
dasd_path_add_ifccpm(device, lpum);
+
+out:
device->path[pos].errorclk = 0;
atomic_set(&device->path[pos].error_count, 0);
}
diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index 62f5f04d8f61..5e963fe0e38d 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -592,13 +592,22 @@ static int _schedule_lcu_update(struct alias_lcu *lcu,
int dasd_alias_add_device(struct dasd_device *device)
{
struct dasd_eckd_private *private = device->private;
- struct alias_lcu *lcu;
+ __u8 uaddr = private->uid.real_unit_addr;
+ struct alias_lcu *lcu = private->lcu;
unsigned long flags;
int rc;
- lcu = private->lcu;
rc = 0;
spin_lock_irqsave(&lcu->lock, flags);
+ /*
+ * Check if device and lcu type differ. If so, the uac data may be
+ * outdated and needs to be updated.
+ */
+ if (private->uid.type != lcu->uac->unit[uaddr].ua_type) {
+ lcu->flags |= UPDATE_PENDING;
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
+ "uid type mismatch - trigger rescan");
+ }
if (!(lcu->flags & UPDATE_PENDING)) {
rc = _add_device_to_lcu(lcu, device, device);
if (rc)
diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c
index e7cd28ff1984..b9ebb565ee2c 100644
--- a/drivers/s390/block/dasd_devmap.c
+++ b/drivers/s390/block/dasd_devmap.c
@@ -1550,9 +1550,49 @@ dasd_path_threshold_store(struct device *dev, struct device_attribute *attr,
dasd_put_device(device);
return count;
}
-
static DEVICE_ATTR(path_threshold, 0644, dasd_path_threshold_show,
dasd_path_threshold_store);
+
+/*
+ * configure if path is disabled after IFCC/CCC error threshold is
+ * exceeded
+ */
+static ssize_t
+dasd_path_autodisable_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct dasd_devmap *devmap;
+ int flag;
+
+ devmap = dasd_find_busid(dev_name(dev));
+ if (!IS_ERR(devmap))
+ flag = (devmap->features & DASD_FEATURE_PATH_AUTODISABLE) != 0;
+ else
+ flag = (DASD_FEATURE_DEFAULT &
+ DASD_FEATURE_PATH_AUTODISABLE) != 0;
+ return snprintf(buf, PAGE_SIZE, flag ? "1\n" : "0\n");
+}
+
+static ssize_t
+dasd_path_autodisable_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned int val;
+ int rc;
+
+ if (kstrtouint(buf, 0, &val) || val > 1)
+ return -EINVAL;
+
+ rc = dasd_set_feature(to_ccwdev(dev),
+ DASD_FEATURE_PATH_AUTODISABLE, val);
+
+ return rc ? : count;
+}
+
+static DEVICE_ATTR(path_autodisable, 0644,
+ dasd_path_autodisable_show,
+ dasd_path_autodisable_store);
/*
* interval for IFCC/CCC checks
* meaning time with no IFCC/CCC error before the error counter
@@ -1623,6 +1663,7 @@ static struct attribute * dasd_attrs[] = {
&dev_attr_host_access_count.attr,
&dev_attr_path_masks.attr,
&dev_attr_path_threshold.attr,
+ &dev_attr_path_autodisable.attr,
&dev_attr_path_interval.attr,
&dev_attr_path_reset.attr,
&dev_attr_hpf.attr,
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index f035c2f25d35..131f1989f6f3 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -27,7 +27,6 @@
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/vtoc.h>
-#include <asm/diag.h>
#include "dasd_int.h"
#include "dasd_diag.h"
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 29397a9dba68..be208e7adcb4 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -214,24 +214,25 @@ static void set_ch_t(struct ch_t *geo, __u32 cyl, __u8 head)
geo->head |= head;
}
-static int check_XRC(struct ccw1 *ccw, struct DE_eckd_data *data,
+static int set_timestamp(struct ccw1 *ccw, struct DE_eckd_data *data,
struct dasd_device *device)
{
struct dasd_eckd_private *private = device->private;
int rc;
- if (!private->rdc_data.facilities.XRC_supported)
+ rc = get_phys_clock(&data->ep_sys_time);
+ /*
+ * Ignore return code if XRC is not supported or
+ * sync clock is switched off
+ */
+ if ((rc && !private->rdc_data.facilities.XRC_supported) ||
+ rc == -EOPNOTSUPP || rc == -EACCES)
return 0;
/* switch on System Time Stamp - needed for XRC Support */
data->ga_extended |= 0x08; /* switch on 'Time Stamp Valid' */
data->ga_extended |= 0x02; /* switch on 'Extended Parameter' */
- rc = get_phys_clock(&data->ep_sys_time);
- /* Ignore return code if sync clock is switched off. */
- if (rc == -EOPNOTSUPP || rc == -EACCES)
- rc = 0;
-
if (ccw) {
ccw->count = sizeof(struct DE_eckd_data);
ccw->flags |= CCW_FLAG_SLI;
@@ -286,12 +287,12 @@ define_extent(struct ccw1 *ccw, struct DE_eckd_data *data, unsigned int trk,
case DASD_ECKD_CCW_WRITE_KD_MT:
data->mask.perm = 0x02;
data->attributes.operation = private->attrib.operation;
- rc = check_XRC(ccw, data, device);
+ rc = set_timestamp(ccw, data, device);
break;
case DASD_ECKD_CCW_WRITE_CKD:
case DASD_ECKD_CCW_WRITE_CKD_MT:
data->attributes.operation = DASD_BYPASS_CACHE;
- rc = check_XRC(ccw, data, device);
+ rc = set_timestamp(ccw, data, device);
break;
case DASD_ECKD_CCW_ERASE:
case DASD_ECKD_CCW_WRITE_HOME_ADDRESS:
@@ -299,7 +300,7 @@ define_extent(struct ccw1 *ccw, struct DE_eckd_data *data, unsigned int trk,
data->mask.perm = 0x3;
data->mask.auth = 0x1;
data->attributes.operation = DASD_BYPASS_CACHE;
- rc = check_XRC(ccw, data, device);
+ rc = set_timestamp(ccw, data, device);
break;
case DASD_ECKD_CCW_WRITE_FULL_TRACK:
data->mask.perm = 0x03;
@@ -310,7 +311,7 @@ define_extent(struct ccw1 *ccw, struct DE_eckd_data *data, unsigned int trk,
data->mask.perm = 0x02;
data->attributes.operation = private->attrib.operation;
data->blk_size = blksize;
- rc = check_XRC(ccw, data, device);
+ rc = set_timestamp(ccw, data, device);
break;
default:
dev_err(&device->cdev->dev,
@@ -993,7 +994,7 @@ static int dasd_eckd_read_conf(struct dasd_device *device)
struct dasd_eckd_private *private, path_private;
struct dasd_uid *uid;
char print_path_uid[60], print_device_uid[60];
- struct channel_path_desc *chp_desc;
+ struct channel_path_desc_fmt0 *chp_desc;
struct subchannel_id sch_id;
private = device->private;
@@ -3440,7 +3441,7 @@ static int prepare_itcw(struct itcw *itcw,
dedata->mask.perm = 0x02;
dedata->attributes.operation = basepriv->attrib.operation;
dedata->blk_size = blksize;
- rc = check_XRC(NULL, dedata, basedev);
+ rc = set_timestamp(NULL, dedata, basedev);
dedata->ga_extended |= 0x42;
lredata->operation.orientation = 0x0;
lredata->operation.operation = 0x3F;
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 9cae08b36b80..0a312e450207 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -633,7 +633,7 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char
dev_info->gd->private_data = dev_info;
blk_queue_make_request(dev_info->dcssblk_queue, dcssblk_make_request);
blk_queue_logical_block_size(dev_info->dcssblk_queue, 4096);
- queue_flag_set_unlocked(QUEUE_FLAG_DAX, dev_info->dcssblk_queue);
+ blk_queue_flag_set(QUEUE_FLAG_DAX, dev_info->dcssblk_queue);
seg_byte_size = (dev_info->end - dev_info->start + 1);
set_capacity(dev_info->gd, seg_byte_size >> 9); // size in sectors
diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c
index b4130c7880d8..b1fcb76dd272 100644
--- a/drivers/s390/block/scm_blk.c
+++ b/drivers/s390/block/scm_blk.c
@@ -472,8 +472,8 @@ int scm_blk_dev_setup(struct scm_blk_dev *bdev, struct scm_device *scmdev)
blk_queue_logical_block_size(rq, 1 << 12);
blk_queue_max_hw_sectors(rq, nr_max_blk << 3); /* 8 * 512 = blk_size */
blk_queue_max_segments(rq, nr_max_blk);
- queue_flag_set_unlocked(QUEUE_FLAG_NONROT, rq);
- queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, rq);
+ blk_queue_flag_set(QUEUE_FLAG_NONROT, rq);
+ blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, rq);
bdev->gendisk = alloc_disk(SCM_NR_PARTS);
if (!bdev->gendisk) {
diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c
index 2a6334ca750e..3df5d68d09f0 100644
--- a/drivers/s390/block/xpram.c
+++ b/drivers/s390/block/xpram.c
@@ -348,8 +348,8 @@ static int __init xpram_setup_blkdev(void)
put_disk(xpram_disks[i]);
goto out;
}
- queue_flag_set_unlocked(QUEUE_FLAG_NONROT, xpram_queues[i]);
- queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, xpram_queues[i]);
+ blk_queue_flag_set(QUEUE_FLAG_NONROT, xpram_queues[i]);
+ blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, xpram_queues[i]);
blk_queue_make_request(xpram_queues[i], xpram_make_request);
blk_queue_logical_block_size(xpram_queues[i], 4096);
}
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-29 05:25:54 +0300