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path: root/drivers/s390/net/ctcmain.c
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Diffstat (limited to 'drivers/s390/net/ctcmain.c')
-rw-r--r--drivers/s390/net/ctcmain.c71
1 files changed, 22 insertions, 49 deletions
diff --git a/drivers/s390/net/ctcmain.c b/drivers/s390/net/ctcmain.c
index af9f212314b..20c8eb16f46 100644
--- a/drivers/s390/net/ctcmain.c
+++ b/drivers/s390/net/ctcmain.c
@@ -6,7 +6,7 @@
* Fixes by : Jochen Röhrig (roehrig@de.ibm.com)
* Arnaldo Carvalho de Melo <acme@conectiva.com.br>
Peter Tiedemann (ptiedem@de.ibm.com)
- * Driver Model stuff by : Cornelia Huck <huckc@de.ibm.com>
+ * Driver Model stuff by : Cornelia Huck <cornelia.huck@de.ibm.com>
*
* Documentation used:
* - Principles of Operation (IBM doc#: SA22-7201-06)
@@ -65,7 +65,6 @@
#include <asm/idals.h>
-#include "ctctty.h"
#include "fsm.h"
#include "cu3088.h"
@@ -479,10 +478,7 @@ ctc_unpack_skb(struct channel *ch, struct sk_buff *pskb)
skb->dev = pskb->dev;
skb->protocol = pskb->protocol;
pskb->ip_summed = CHECKSUM_UNNECESSARY;
- if (ch->protocol == CTC_PROTO_LINUX_TTY)
- ctc_tty_netif_rx(skb);
- else
- netif_rx_ni(skb);
+ netif_rx_ni(skb);
/**
* Successful rx; reset logflags
*/
@@ -557,8 +553,7 @@ ccw_unit_check(struct channel *ch, unsigned char sense)
DBF_TEXT(trace, 5, __FUNCTION__);
if (sense & SNS0_INTERVENTION_REQ) {
if (sense & 0x01) {
- if (ch->protocol != CTC_PROTO_LINUX_TTY)
- ctc_pr_debug("%s: Interface disc. or Sel. reset "
+ ctc_pr_debug("%s: Interface disc. or Sel. reset "
"(remote)\n", ch->id);
fsm_event(ch->fsm, CH_EVENT_UC_RCRESET, ch);
} else {
@@ -1486,13 +1481,13 @@ ch_action_iofatal(fsm_instance * fi, int event, void *arg)
}
}
-static void
+static void
ch_action_reinit(fsm_instance *fi, int event, void *arg)
{
struct channel *ch = (struct channel *)arg;
struct net_device *dev = ch->netdev;
struct ctc_priv *privptr = dev->priv;
-
+
DBF_TEXT(trace, 4, __FUNCTION__);
ch_action_iofatal(fi, event, arg);
fsm_addtimer(&privptr->restart_timer, 1000, DEV_EVENT_RESTART, dev);
@@ -1624,7 +1619,7 @@ less_than(char *id1, char *id2)
}
dev1 = simple_strtoul(id1, &id1, 16);
dev2 = simple_strtoul(id2, &id2, 16);
-
+
return (dev1 < dev2);
}
@@ -1895,7 +1890,7 @@ ctc_irq_handler(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
irb->scsw.dstat);
return;
}
-
+
priv = ((struct ccwgroup_device *)cdev->dev.driver_data)
->dev.driver_data;
@@ -1909,7 +1904,7 @@ ctc_irq_handler(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
"device %s\n", cdev->dev.bus_id);
return;
}
-
+
dev = (struct net_device *) (ch->netdev);
if (dev == NULL) {
ctc_pr_crit("ctc: ctc_irq_handler dev=NULL bus_id=%s, ch=0x%p\n",
@@ -2008,12 +2003,12 @@ dev_action_stop(fsm_instance * fi, int event, void *arg)
fsm_event(ch->fsm, CH_EVENT_STOP, ch);
}
}
-static void
+static void
dev_action_restart(fsm_instance *fi, int event, void *arg)
{
struct net_device *dev = (struct net_device *)arg;
struct ctc_priv *privptr = dev->priv;
-
+
DBF_TEXT(trace, 3, __FUNCTION__);
ctc_pr_debug("%s: Restarting\n", dev->name);
dev_action_stop(fi, event, arg);
@@ -2034,7 +2029,6 @@ static void
dev_action_chup(fsm_instance * fi, int event, void *arg)
{
struct net_device *dev = (struct net_device *) arg;
- struct ctc_priv *privptr = dev->priv;
DBF_TEXT(trace, 3, __FUNCTION__);
switch (fsm_getstate(fi)) {
@@ -2049,8 +2043,6 @@ dev_action_chup(fsm_instance * fi, int event, void *arg)
fsm_newstate(fi, DEV_STATE_RUNNING);
ctc_pr_info("%s: connected with remote side\n",
dev->name);
- if (privptr->protocol == CTC_PROTO_LINUX_TTY)
- ctc_tty_setcarrier(dev, 1);
ctc_clear_busy(dev);
}
break;
@@ -2059,8 +2051,6 @@ dev_action_chup(fsm_instance * fi, int event, void *arg)
fsm_newstate(fi, DEV_STATE_RUNNING);
ctc_pr_info("%s: connected with remote side\n",
dev->name);
- if (privptr->protocol == CTC_PROTO_LINUX_TTY)
- ctc_tty_setcarrier(dev, 1);
ctc_clear_busy(dev);
}
break;
@@ -2086,14 +2076,10 @@ dev_action_chup(fsm_instance * fi, int event, void *arg)
static void
dev_action_chdown(fsm_instance * fi, int event, void *arg)
{
- struct net_device *dev = (struct net_device *) arg;
- struct ctc_priv *privptr = dev->priv;
DBF_TEXT(trace, 3, __FUNCTION__);
switch (fsm_getstate(fi)) {
case DEV_STATE_RUNNING:
- if (privptr->protocol == CTC_PROTO_LINUX_TTY)
- ctc_tty_setcarrier(dev, 0);
if (event == DEV_EVENT_TXDOWN)
fsm_newstate(fi, DEV_STATE_STARTWAIT_TX);
else
@@ -2193,7 +2179,7 @@ transmit_skb(struct channel *ch, struct sk_buff *skb)
DBF_TEXT(trace, 5, __FUNCTION__);
/* we need to acquire the lock for testing the state
- * otherwise we can have an IRQ changing the state to
+ * otherwise we can have an IRQ changing the state to
* TXIDLE after the test but before acquiring the lock.
*/
spin_lock_irqsave(&ch->collect_lock, saveflags);
@@ -2393,12 +2379,10 @@ ctc_tx(struct sk_buff *skb, struct net_device * dev)
/**
* If channels are not running, try to restart them
- * and throw away packet.
+ * and throw away packet.
*/
if (fsm_getstate(privptr->fsm) != DEV_STATE_RUNNING) {
fsm_event(privptr->fsm, DEV_EVENT_START, dev);
- if (privptr->protocol == CTC_PROTO_LINUX_TTY)
- return -EBUSY;
dev_kfree_skb(skb);
privptr->stats.tx_dropped++;
privptr->stats.tx_errors++;
@@ -2608,20 +2592,13 @@ ctc_netdev_unregister(struct net_device * dev)
if (!dev)
return;
privptr = (struct ctc_priv *) dev->priv;
- if (privptr->protocol != CTC_PROTO_LINUX_TTY)
- unregister_netdev(dev);
- else
- ctc_tty_unregister_netdev(dev);
+ unregister_netdev(dev);
}
static int
ctc_netdev_register(struct net_device * dev)
{
- struct ctc_priv *privptr = (struct ctc_priv *) dev->priv;
- if (privptr->protocol != CTC_PROTO_LINUX_TTY)
- return register_netdev(dev);
- else
- return ctc_tty_register_netdev(dev);
+ return register_netdev(dev);
}
static void
@@ -2667,7 +2644,9 @@ ctc_proto_store(struct device *dev, struct device_attribute *attr, const char *b
if (!priv)
return -ENODEV;
sscanf(buf, "%u", &value);
- if ((value < 0) || (value > CTC_PROTO_MAX))
+ if (!((value == CTC_PROTO_S390) ||
+ (value == CTC_PROTO_LINUX) ||
+ (value == CTC_PROTO_OS390)))
return -EINVAL;
priv->protocol = value;
@@ -2738,7 +2717,7 @@ ctc_remove_files(struct device *dev)
/**
* Add ctc specific attributes.
* Add ctc private data.
- *
+ *
* @param cgdev pointer to ccwgroup_device just added
*
* @returns 0 on success, !0 on failure.
@@ -2869,7 +2848,7 @@ ctc_new_device(struct ccwgroup_device *cgdev)
DBF_TEXT(setup, 3, buffer);
type = get_channel_type(&cgdev->cdev[0]->id);
-
+
snprintf(read_id, CTC_ID_SIZE, "ch-%s", cgdev->cdev[0]->dev.bus_id);
snprintf(write_id, CTC_ID_SIZE, "ch-%s", cgdev->cdev[1]->dev.bus_id);
@@ -2897,17 +2876,14 @@ ctc_new_device(struct ccwgroup_device *cgdev)
goto out;
}
- if (privptr->protocol == CTC_PROTO_LINUX_TTY)
- strlcpy(dev->name, "ctctty%d", IFNAMSIZ);
- else
- strlcpy(dev->name, "ctc%d", IFNAMSIZ);
+ strlcpy(dev->name, "ctc%d", IFNAMSIZ);
for (direction = READ; direction <= WRITE; direction++) {
privptr->channel[direction] =
channel_get(type, direction == READ ? read_id : write_id,
direction);
if (privptr->channel[direction] == NULL) {
- if (direction == WRITE)
+ if (direction == WRITE)
channel_free(privptr->channel[READ]);
ctc_free_netdevice(dev, 1);
@@ -2955,7 +2931,7 @@ ctc_shutdown_device(struct ccwgroup_device *cgdev)
{
struct ctc_priv *priv;
struct net_device *ndev;
-
+
DBF_TEXT(setup, 3, __FUNCTION__);
pr_debug("%s() called\n", __FUNCTION__);
@@ -3046,7 +3022,6 @@ ctc_exit(void)
{
DBF_TEXT(setup, 3, __FUNCTION__);
unregister_cu3088_discipline(&ctc_group_driver);
- ctc_tty_cleanup();
ctc_unregister_dbf_views();
ctc_pr_info("CTC driver unloaded\n");
}
@@ -3073,10 +3048,8 @@ ctc_init(void)
ctc_pr_crit("ctc_init failed with ctc_register_dbf_views rc = %d\n", ret);
return ret;
}
- ctc_tty_init();
ret = register_cu3088_discipline(&ctc_group_driver);
if (ret) {
- ctc_tty_cleanup();
ctc_unregister_dbf_views();
}
return ret;
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-30 01:33:27 +0000