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path: root/drivers/s390/net/ctcm_main.c
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Diffstat (limited to 'drivers/s390/net/ctcm_main.c')
-rw-r--r--drivers/s390/net/ctcm_main.c80
1 files changed, 30 insertions, 50 deletions
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index 4c284598592..03b6ad03557 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -1,6 +1,4 @@
/*
- * drivers/s390/net/ctcm_main.c
- *
* Copyright IBM Corp. 2001, 2009
* Author(s):
* Original CTC driver(s):
@@ -24,7 +22,6 @@
#define KMSG_COMPONENT "ctcm"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
-#include <linux/kernel_stat.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
@@ -563,6 +560,9 @@ static int ctcm_transmit_skb(struct channel *ch, struct sk_buff *skb)
skb_queue_tail(&ch->io_queue, skb);
ccw_idx = 3;
}
+ if (do_debug_ccw)
+ ctcmpc_dumpit((char *)&ch->ccw[ccw_idx],
+ sizeof(struct ccw1) * 3);
ch->retry = 0;
fsm_newstate(ch->fsm, CTC_STATE_TX);
fsm_addtimer(&ch->timer, CTCM_TIME_5_SEC, CTC_EVENT_TIMER, ch);
@@ -672,7 +672,6 @@ static int ctcmpc_transmit_skb(struct channel *ch, struct sk_buff *skb)
int ccw_idx;
unsigned long hi;
unsigned long saveflags = 0; /* avoids compiler warning */
- __u16 block_len;
CTCM_PR_DEBUG("Enter %s: %s, cp=%i ch=0x%p id=%s state=%s\n",
__func__, dev->name, smp_processor_id(), ch,
@@ -719,7 +718,6 @@ static int ctcmpc_transmit_skb(struct channel *ch, struct sk_buff *skb)
*/
atomic_inc(&skb->users);
- block_len = skb->len + TH_HEADER_LENGTH + PDU_HEADER_LENGTH;
/*
* IDAL support in CTCM is broken, so we have to
* care about skb's above 2G ourselves.
@@ -1205,7 +1203,6 @@ static void ctcm_irq_handler(struct ccw_device *cdev,
int cstat;
int dstat;
- kstat_cpu(smp_processor_id()).irqs[IOINT_CTC]++;
CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG,
"Enter %s(%s)", CTCM_FUNTAIL, dev_name(&cdev->dev));
@@ -1297,6 +1294,11 @@ static void ctcm_irq_handler(struct ccw_device *cdev,
}
+static const struct device_type ctcm_devtype = {
+ .name = "ctcm",
+ .groups = ctcm_attr_groups,
+};
+
/**
* Add ctcm specific attributes.
* Add ctcm private data.
@@ -1308,7 +1310,6 @@ static void ctcm_irq_handler(struct ccw_device *cdev,
static int ctcm_probe_device(struct ccwgroup_device *cgdev)
{
struct ctcm_priv *priv;
- int rc;
CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO,
"%s %p",
@@ -1325,17 +1326,11 @@ static int ctcm_probe_device(struct ccwgroup_device *cgdev)
put_device(&cgdev->dev);
return -ENOMEM;
}
-
- rc = ctcm_add_files(&cgdev->dev);
- if (rc) {
- kfree(priv);
- put_device(&cgdev->dev);
- return rc;
- }
priv->buffer_size = CTCM_BUFSIZE_DEFAULT;
cgdev->cdev[0]->handler = ctcm_irq_handler;
cgdev->cdev[1]->handler = ctcm_irq_handler;
dev_set_drvdata(&cgdev->dev, priv);
+ cgdev->dev.type = &ctcm_devtype;
return 0;
}
@@ -1459,7 +1454,7 @@ static int add_channel(struct ccw_device *cdev, enum ctcm_channel_types type,
ch_fsm_len, GFP_KERNEL);
}
if (ch->fsm == NULL)
- goto free_return;
+ goto nomem_return;
fsm_newstate(ch->fsm, CTC_STATE_IDLE);
@@ -1612,11 +1607,6 @@ static int ctcm_new_device(struct ccwgroup_device *cgdev)
goto out_dev;
}
- if (ctcm_add_attributes(&cgdev->dev)) {
- result = -ENODEV;
- goto out_unregister;
- }
-
strlcpy(priv->fsm->name, dev->name, sizeof(priv->fsm->name));
dev_info(&dev->dev,
@@ -1630,8 +1620,6 @@ static int ctcm_new_device(struct ccwgroup_device *cgdev)
priv->channel[CTCM_WRITE]->id, priv->protocol);
return 0;
-out_unregister:
- unregister_netdev(dev);
out_dev:
ctcm_free_netdevice(dev);
out_ccw2:
@@ -1670,7 +1658,6 @@ static int ctcm_shutdown_device(struct ccwgroup_device *cgdev)
/* Close the device */
ctcm_close(dev);
dev->flags &= ~IFF_RUNNING;
- ctcm_remove_attributes(&cgdev->dev);
channel_free(priv->channel[CTCM_READ]);
} else
dev = NULL;
@@ -1704,15 +1691,12 @@ static void ctcm_remove_device(struct ccwgroup_device *cgdev)
{
struct ctcm_priv *priv = dev_get_drvdata(&cgdev->dev);
- BUG_ON(priv == NULL);
-
CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO,
"removing device %p, proto : %d",
cgdev, priv->protocol);
if (cgdev->state == CCWGROUP_ONLINE)
ctcm_shutdown_device(cgdev);
- ctcm_remove_files(&cgdev->dev);
dev_set_drvdata(&cgdev->dev, NULL);
kfree(priv);
put_device(&cgdev->dev);
@@ -1764,19 +1748,22 @@ static struct ccw_device_id ctcm_ids[] = {
MODULE_DEVICE_TABLE(ccw, ctcm_ids);
static struct ccw_driver ctcm_ccw_driver = {
- .owner = THIS_MODULE,
- .name = "ctcm",
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "ctcm",
+ },
.ids = ctcm_ids,
.probe = ccwgroup_probe_ccwdev,
.remove = ccwgroup_remove_ccwdev,
+ .int_class = IRQIO_CTC,
};
static struct ccwgroup_driver ctcm_group_driver = {
- .owner = THIS_MODULE,
- .name = CTC_DRIVER_NAME,
- .max_slaves = 2,
- .driver_id = 0xC3E3C3D4, /* CTCM */
- .probe = ctcm_probe_device,
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = CTC_DRIVER_NAME,
+ },
+ .setup = ctcm_probe_device,
.remove = ctcm_remove_device,
.set_online = ctcm_new_device,
.set_offline = ctcm_shutdown_device,
@@ -1785,31 +1772,25 @@ static struct ccwgroup_driver ctcm_group_driver = {
.restore = ctcm_pm_resume,
};
-static ssize_t
-ctcm_driver_group_store(struct device_driver *ddrv, const char *buf,
- size_t count)
+static ssize_t ctcm_driver_group_store(struct device_driver *ddrv,
+ const char *buf, size_t count)
{
int err;
- err = ccwgroup_create_from_string(ctcm_root_dev,
- ctcm_group_driver.driver_id,
- &ctcm_ccw_driver, 2, buf);
+ err = ccwgroup_create_dev(ctcm_root_dev, &ctcm_group_driver, 2, buf);
return err ? err : count;
}
-
static DRIVER_ATTR(group, 0200, NULL, ctcm_driver_group_store);
-static struct attribute *ctcm_group_attrs[] = {
+static struct attribute *ctcm_drv_attrs[] = {
&driver_attr_group.attr,
NULL,
};
-
-static struct attribute_group ctcm_group_attr_group = {
- .attrs = ctcm_group_attrs,
+static struct attribute_group ctcm_drv_attr_group = {
+ .attrs = ctcm_drv_attrs,
};
-
-static const struct attribute_group *ctcm_group_attr_groups[] = {
- &ctcm_group_attr_group,
+static const struct attribute_group *ctcm_drv_attr_groups[] = {
+ &ctcm_drv_attr_group,
NULL,
};
@@ -1825,7 +1806,6 @@ static const struct attribute_group *ctcm_group_attr_groups[] = {
*/
static void __exit ctcm_exit(void)
{
- driver_remove_file(&ctcm_group_driver.driver, &driver_attr_group);
ccwgroup_driver_unregister(&ctcm_group_driver);
ccw_driver_unregister(&ctcm_ccw_driver);
root_device_unregister(ctcm_root_dev);
@@ -1857,13 +1837,13 @@ static int __init ctcm_init(void)
if (ret)
goto out_err;
ctcm_root_dev = root_device_register("ctcm");
- ret = IS_ERR(ctcm_root_dev) ? PTR_ERR(ctcm_root_dev) : 0;
+ ret = PTR_ERR_OR_ZERO(ctcm_root_dev);
if (ret)
goto register_err;
ret = ccw_driver_register(&ctcm_ccw_driver);
if (ret)
goto ccw_err;
- ctcm_group_driver.driver.groups = ctcm_group_attr_groups;
+ ctcm_group_driver.driver.groups = ctcm_drv_attr_groups;
ret = ccwgroup_driver_register(&ctcm_group_driver);
if (ret)
goto ccwgroup_err;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 16:28:25 +0000