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-rw-r--r--drivers/s390/block/Kconfig1
-rw-r--r--drivers/s390/block/dcssblk.c45
-rw-r--r--drivers/s390/char/sclp_early.c4
-rw-r--r--drivers/s390/net/qeth_core.h4
-rw-r--r--drivers/s390/net/qeth_core_main.c21
-rw-r--r--drivers/s390/net/qeth_core_sys.c24
-rw-r--r--drivers/s390/net/qeth_l2.h2
-rw-r--r--drivers/s390/net/qeth_l2_main.c26
-rw-r--r--drivers/s390/net/qeth_l2_sys.c8
-rw-r--r--drivers/s390/net/qeth_l3_main.c8
-rw-r--r--drivers/s390/virtio/kvm_virtio.c8
-rw-r--r--drivers/s390/virtio/virtio_ccw.c7
12 files changed, 115 insertions, 43 deletions
diff --git a/drivers/s390/block/Kconfig b/drivers/s390/block/Kconfig
index 4a3b62326183..0acb8c2f9475 100644
--- a/drivers/s390/block/Kconfig
+++ b/drivers/s390/block/Kconfig
@@ -14,6 +14,7 @@ config BLK_DEV_XPRAM
config DCSSBLK
def_tristate m
+ select DAX
prompt "DCSSBLK support"
depends on S390 && BLOCK
help
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 415d10a67b7a..36e5280af3e4 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -18,6 +18,7 @@
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/pfn_t.h>
+#include <linux/dax.h>
#include <asm/extmem.h>
#include <asm/io.h>
@@ -30,8 +31,8 @@ static int dcssblk_open(struct block_device *bdev, fmode_t mode);
static void dcssblk_release(struct gendisk *disk, fmode_t mode);
static blk_qc_t dcssblk_make_request(struct request_queue *q,
struct bio *bio);
-static long dcssblk_direct_access(struct block_device *bdev, sector_t secnum,
- void **kaddr, pfn_t *pfn, long size);
+static long dcssblk_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff,
+ long nr_pages, void **kaddr, pfn_t *pfn);
static char dcssblk_segments[DCSSBLK_PARM_LEN] = "\0";
@@ -40,7 +41,10 @@ static const struct block_device_operations dcssblk_devops = {
.owner = THIS_MODULE,
.open = dcssblk_open,
.release = dcssblk_release,
- .direct_access = dcssblk_direct_access,
+};
+
+static const struct dax_operations dcssblk_dax_ops = {
+ .direct_access = dcssblk_dax_direct_access,
};
struct dcssblk_dev_info {
@@ -57,6 +61,7 @@ struct dcssblk_dev_info {
struct request_queue *dcssblk_queue;
int num_of_segments;
struct list_head seg_list;
+ struct dax_device *dax_dev;
};
struct segment_info {
@@ -389,6 +394,8 @@ removeseg:
}
list_del(&dev_info->lh);
+ kill_dax(dev_info->dax_dev);
+ put_dax(dev_info->dax_dev);
del_gendisk(dev_info->gd);
blk_cleanup_queue(dev_info->dcssblk_queue);
dev_info->gd->queue = NULL;
@@ -654,6 +661,13 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char
if (rc)
goto put_dev;
+ dev_info->dax_dev = alloc_dax(dev_info, dev_info->gd->disk_name,
+ &dcssblk_dax_ops);
+ if (!dev_info->dax_dev) {
+ rc = -ENOMEM;
+ goto put_dev;
+ }
+
get_device(&dev_info->dev);
device_add_disk(&dev_info->dev, dev_info->gd);
@@ -752,6 +766,8 @@ dcssblk_remove_store(struct device *dev, struct device_attribute *attr, const ch
}
list_del(&dev_info->lh);
+ kill_dax(dev_info->dax_dev);
+ put_dax(dev_info->dax_dev);
del_gendisk(dev_info->gd);
blk_cleanup_queue(dev_info->dcssblk_queue);
dev_info->gd->queue = NULL;
@@ -883,21 +899,26 @@ fail:
}
static long
-dcssblk_direct_access (struct block_device *bdev, sector_t secnum,
- void **kaddr, pfn_t *pfn, long size)
+__dcssblk_direct_access(struct dcssblk_dev_info *dev_info, pgoff_t pgoff,
+ long nr_pages, void **kaddr, pfn_t *pfn)
{
- struct dcssblk_dev_info *dev_info;
- unsigned long offset, dev_sz;
+ resource_size_t offset = pgoff * PAGE_SIZE;
+ unsigned long dev_sz;
- dev_info = bdev->bd_disk->private_data;
- if (!dev_info)
- return -ENODEV;
dev_sz = dev_info->end - dev_info->start + 1;
- offset = secnum * 512;
*kaddr = (void *) dev_info->start + offset;
*pfn = __pfn_to_pfn_t(PFN_DOWN(dev_info->start + offset), PFN_DEV);
- return dev_sz - offset;
+ return (dev_sz - offset) / PAGE_SIZE;
+}
+
+static long
+dcssblk_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff,
+ long nr_pages, void **kaddr, pfn_t *pfn)
+{
+ struct dcssblk_dev_info *dev_info = dax_get_private(dax_dev);
+
+ return __dcssblk_direct_access(dev_info, pgoff, nr_pages, kaddr, pfn);
}
static void
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index 519ec1787117..efd84d1d178b 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -40,7 +40,8 @@ struct read_info_sccb {
u8 fac85; /* 85 */
u8 _pad_86[91 - 86]; /* 86-90 */
u8 flags; /* 91 */
- u8 _pad_92[99 - 92]; /* 92-98 */
+ u8 _pad_92[98 - 92]; /* 92-97 */
+ u8 fac98; /* 98 */
u8 hamaxpow; /* 99 */
u32 rnsize2; /* 100-103 */
u64 rnmax2; /* 104-111 */
@@ -99,6 +100,7 @@ static void __init sclp_early_facilities_detect(struct read_info_sccb *sccb)
sclp.has_pfmfi = !!(sccb->fac117 & 0x40);
sclp.has_ibs = !!(sccb->fac117 & 0x20);
sclp.has_hvs = !!(sccb->fac119 & 0x80);
+ sclp.has_kss = !!(sccb->fac98 & 0x01);
if (sccb->fac85 & 0x02)
S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP;
sclp.rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2;
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index f6aa21176d89..30bc6105aac3 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -701,6 +701,7 @@ enum qeth_discipline_id {
};
struct qeth_discipline {
+ const struct device_type *devtype;
void (*start_poll)(struct ccw_device *, int, unsigned long);
qdio_handler_t *input_handler;
qdio_handler_t *output_handler;
@@ -875,6 +876,9 @@ extern struct qeth_discipline qeth_l2_discipline;
extern struct qeth_discipline qeth_l3_discipline;
extern const struct attribute_group *qeth_generic_attr_groups[];
extern const struct attribute_group *qeth_osn_attr_groups[];
+extern const struct attribute_group qeth_device_attr_group;
+extern const struct attribute_group qeth_device_blkt_group;
+extern const struct device_type qeth_generic_devtype;
extern struct workqueue_struct *qeth_wq;
int qeth_card_hw_is_reachable(struct qeth_card *);
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 38114a8d56e0..fc6d85f2b38d 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -5530,10 +5530,12 @@ void qeth_core_free_discipline(struct qeth_card *card)
card->discipline = NULL;
}
-static const struct device_type qeth_generic_devtype = {
+const struct device_type qeth_generic_devtype = {
.name = "qeth_generic",
.groups = qeth_generic_attr_groups,
};
+EXPORT_SYMBOL_GPL(qeth_generic_devtype);
+
static const struct device_type qeth_osn_devtype = {
.name = "qeth_osn",
.groups = qeth_osn_attr_groups,
@@ -5659,23 +5661,22 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev)
goto err_card;
}
- if (card->info.type == QETH_CARD_TYPE_OSN)
- gdev->dev.type = &qeth_osn_devtype;
- else
- gdev->dev.type = &qeth_generic_devtype;
-
switch (card->info.type) {
case QETH_CARD_TYPE_OSN:
case QETH_CARD_TYPE_OSM:
rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
if (rc)
goto err_card;
+
+ gdev->dev.type = (card->info.type != QETH_CARD_TYPE_OSN)
+ ? card->discipline->devtype
+ : &qeth_osn_devtype;
rc = card->discipline->setup(card->gdev);
if (rc)
goto err_disc;
- case QETH_CARD_TYPE_OSD:
- case QETH_CARD_TYPE_OSX:
+ break;
default:
+ gdev->dev.type = &qeth_generic_devtype;
break;
}
@@ -5731,8 +5732,10 @@ static int qeth_core_set_online(struct ccwgroup_device *gdev)
if (rc)
goto err;
rc = card->discipline->setup(card->gdev);
- if (rc)
+ if (rc) {
+ qeth_core_free_discipline(card);
goto err;
+ }
}
rc = card->discipline->set_online(gdev);
err:
diff --git a/drivers/s390/net/qeth_core_sys.c b/drivers/s390/net/qeth_core_sys.c
index 75b29fd2fcf4..db6a285d41e0 100644
--- a/drivers/s390/net/qeth_core_sys.c
+++ b/drivers/s390/net/qeth_core_sys.c
@@ -413,12 +413,16 @@ static ssize_t qeth_dev_layer2_store(struct device *dev,
if (card->options.layer2 == newdis)
goto out;
- else {
- card->info.mac_bits = 0;
- if (card->discipline) {
- card->discipline->remove(card->gdev);
- qeth_core_free_discipline(card);
- }
+ if (card->info.type == QETH_CARD_TYPE_OSM) {
+ /* fixed layer, can't switch */
+ rc = -EOPNOTSUPP;
+ goto out;
+ }
+
+ card->info.mac_bits = 0;
+ if (card->discipline) {
+ card->discipline->remove(card->gdev);
+ qeth_core_free_discipline(card);
}
rc = qeth_core_load_discipline(card, newdis);
@@ -426,6 +430,8 @@ static ssize_t qeth_dev_layer2_store(struct device *dev,
goto out;
rc = card->discipline->setup(card->gdev);
+ if (rc)
+ qeth_core_free_discipline(card);
out:
mutex_unlock(&card->discipline_mutex);
return rc ? rc : count;
@@ -703,10 +709,11 @@ static struct attribute *qeth_blkt_device_attrs[] = {
&dev_attr_inter_jumbo.attr,
NULL,
};
-static struct attribute_group qeth_device_blkt_group = {
+const struct attribute_group qeth_device_blkt_group = {
.name = "blkt",
.attrs = qeth_blkt_device_attrs,
};
+EXPORT_SYMBOL_GPL(qeth_device_blkt_group);
static struct attribute *qeth_device_attrs[] = {
&dev_attr_state.attr,
@@ -726,9 +733,10 @@ static struct attribute *qeth_device_attrs[] = {
&dev_attr_switch_attrs.attr,
NULL,
};
-static struct attribute_group qeth_device_attr_group = {
+const struct attribute_group qeth_device_attr_group = {
.attrs = qeth_device_attrs,
};
+EXPORT_SYMBOL_GPL(qeth_device_attr_group);
const struct attribute_group *qeth_generic_attr_groups[] = {
&qeth_device_attr_group,
diff --git a/drivers/s390/net/qeth_l2.h b/drivers/s390/net/qeth_l2.h
index 29d9fb3890ad..0d59f9a45ea9 100644
--- a/drivers/s390/net/qeth_l2.h
+++ b/drivers/s390/net/qeth_l2.h
@@ -8,6 +8,8 @@
#include "qeth_core.h"
+extern const struct attribute_group *qeth_l2_attr_groups[];
+
int qeth_l2_create_device_attributes(struct device *);
void qeth_l2_remove_device_attributes(struct device *);
void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card);
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 1b07f382d74c..bd2df62a5cdf 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -880,11 +880,21 @@ static int qeth_l2_stop(struct net_device *dev)
return 0;
}
+static const struct device_type qeth_l2_devtype = {
+ .name = "qeth_layer2",
+ .groups = qeth_l2_attr_groups,
+};
+
static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
{
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+ int rc;
- qeth_l2_create_device_attributes(&gdev->dev);
+ if (gdev->dev.type == &qeth_generic_devtype) {
+ rc = qeth_l2_create_device_attributes(&gdev->dev);
+ if (rc)
+ return rc;
+ }
INIT_LIST_HEAD(&card->vid_list);
hash_init(card->mac_htable);
card->options.layer2 = 1;
@@ -896,7 +906,8 @@ static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
{
struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
- qeth_l2_remove_device_attributes(&cgdev->dev);
+ if (cgdev->dev.type == &qeth_generic_devtype)
+ qeth_l2_remove_device_attributes(&cgdev->dev);
qeth_set_allowed_threads(card, 0, 1);
wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
@@ -954,7 +965,6 @@ static int qeth_l2_setup_netdev(struct qeth_card *card)
case QETH_CARD_TYPE_OSN:
card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
ether_setup);
- card->dev->flags |= IFF_NOARP;
break;
default:
card->dev = alloc_etherdev(0);
@@ -969,9 +979,12 @@ static int qeth_l2_setup_netdev(struct qeth_card *card)
card->dev->min_mtu = 64;
card->dev->max_mtu = ETH_MAX_MTU;
card->dev->netdev_ops = &qeth_l2_netdev_ops;
- card->dev->ethtool_ops =
- (card->info.type != QETH_CARD_TYPE_OSN) ?
- &qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
+ if (card->info.type == QETH_CARD_TYPE_OSN) {
+ card->dev->ethtool_ops = &qeth_l2_osn_ops;
+ card->dev->flags |= IFF_NOARP;
+ } else {
+ card->dev->ethtool_ops = &qeth_l2_ethtool_ops;
+ }
card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
card->dev->hw_features = NETIF_F_SG;
@@ -1269,6 +1282,7 @@ static int qeth_l2_control_event(struct qeth_card *card,
}
struct qeth_discipline qeth_l2_discipline = {
+ .devtype = &qeth_l2_devtype,
.start_poll = qeth_qdio_start_poll,
.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
diff --git a/drivers/s390/net/qeth_l2_sys.c b/drivers/s390/net/qeth_l2_sys.c
index 687972356d6b..9696baa49e2d 100644
--- a/drivers/s390/net/qeth_l2_sys.c
+++ b/drivers/s390/net/qeth_l2_sys.c
@@ -269,3 +269,11 @@ void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card)
} else
qeth_bridgeport_an_set(card, 0);
}
+
+const struct attribute_group *qeth_l2_attr_groups[] = {
+ &qeth_device_attr_group,
+ &qeth_device_blkt_group,
+ /* l2 specific, see l2_{create,remove}_device_attributes(): */
+ &qeth_l2_bridgeport_attr_group,
+ NULL,
+};
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 6e0354ef4b86..d8df1e635163 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -3039,8 +3039,13 @@ static int qeth_l3_setup_netdev(struct qeth_card *card)
static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
{
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+ int rc;
- qeth_l3_create_device_attributes(&gdev->dev);
+ rc = qeth_l3_create_device_attributes(&gdev->dev);
+ if (rc)
+ return rc;
+ hash_init(card->ip_htable);
+ hash_init(card->ip_mc_htable);
card->options.layer2 = 0;
card->info.hwtrap = 0;
return 0;
@@ -3306,6 +3311,7 @@ static int qeth_l3_control_event(struct qeth_card *card,
}
struct qeth_discipline qeth_l3_discipline = {
+ .devtype = &qeth_generic_devtype,
.start_poll = qeth_qdio_start_poll,
.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
diff --git a/drivers/s390/virtio/kvm_virtio.c b/drivers/s390/virtio/kvm_virtio.c
index 2ce0b3eb2efe..a99d09a11f05 100644
--- a/drivers/s390/virtio/kvm_virtio.c
+++ b/drivers/s390/virtio/kvm_virtio.c
@@ -189,7 +189,7 @@ static bool kvm_notify(struct virtqueue *vq)
static struct virtqueue *kvm_find_vq(struct virtio_device *vdev,
unsigned index,
void (*callback)(struct virtqueue *vq),
- const char *name)
+ const char *name, bool ctx)
{
struct kvm_device *kdev = to_kvmdev(vdev);
struct kvm_vqconfig *config;
@@ -211,7 +211,7 @@ static struct virtqueue *kvm_find_vq(struct virtio_device *vdev,
goto out;
vq = vring_new_virtqueue(index, config->num, KVM_S390_VIRTIO_RING_ALIGN,
- vdev, true, (void *) config->address,
+ vdev, true, ctx, (void *) config->address,
kvm_notify, callback, name);
if (!vq) {
err = -ENOMEM;
@@ -256,6 +256,7 @@ static int kvm_find_vqs(struct virtio_device *vdev, unsigned nvqs,
struct virtqueue *vqs[],
vq_callback_t *callbacks[],
const char * const names[],
+ const bool *ctx,
struct irq_affinity *desc)
{
struct kvm_device *kdev = to_kvmdev(vdev);
@@ -266,7 +267,8 @@ static int kvm_find_vqs(struct virtio_device *vdev, unsigned nvqs,
return -ENOENT;
for (i = 0; i < nvqs; ++i) {
- vqs[i] = kvm_find_vq(vdev, i, callbacks[i], names[i]);
+ vqs[i] = kvm_find_vq(vdev, i, callbacks[i], names[i],
+ ctx ? ctx[i] : false);
if (IS_ERR(vqs[i]))
goto error;
}
diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c
index c7d4ef7b4b22..b18fe2014cf2 100644
--- a/drivers/s390/virtio/virtio_ccw.c
+++ b/drivers/s390/virtio/virtio_ccw.c
@@ -484,7 +484,7 @@ static void virtio_ccw_del_vqs(struct virtio_device *vdev)
static struct virtqueue *virtio_ccw_setup_vq(struct virtio_device *vdev,
int i, vq_callback_t *callback,
- const char *name,
+ const char *name, bool ctx,
struct ccw1 *ccw)
{
struct virtio_ccw_device *vcdev = to_vc_device(vdev);
@@ -522,7 +522,7 @@ static struct virtqueue *virtio_ccw_setup_vq(struct virtio_device *vdev,
}
vq = vring_new_virtqueue(i, info->num, KVM_VIRTIO_CCW_RING_ALIGN, vdev,
- true, info->queue, virtio_ccw_kvm_notify,
+ true, ctx, info->queue, virtio_ccw_kvm_notify,
callback, name);
if (!vq) {
/* For now, we fail if we can't get the requested size. */
@@ -629,6 +629,7 @@ static int virtio_ccw_find_vqs(struct virtio_device *vdev, unsigned nvqs,
struct virtqueue *vqs[],
vq_callback_t *callbacks[],
const char * const names[],
+ const bool *ctx,
struct irq_affinity *desc)
{
struct virtio_ccw_device *vcdev = to_vc_device(vdev);
@@ -642,7 +643,7 @@ static int virtio_ccw_find_vqs(struct virtio_device *vdev, unsigned nvqs,
for (i = 0; i < nvqs; ++i) {
vqs[i] = virtio_ccw_setup_vq(vdev, i, callbacks[i], names[i],
- ccw);
+ ctx ? ctx[i] : false, ccw);
if (IS_ERR(vqs[i])) {
ret = PTR_ERR(vqs[i]);
vqs[i] = NULL;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.