* 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)
#include <asm/idals.h>
-#include "ctctty.h"
#include "fsm.h"
#include "cu3088.h"
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
*/
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 {
}
}
-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);
}
dev1 = simple_strtoul(id1, &id1, 16);
dev2 = simple_strtoul(id2, &id2, 16);
-
+
return (dev1 < dev2);
}
return -1;
}
memset(ch, 0, sizeof (struct channel));
- if ((ch->ccw = (struct ccw1 *) kmalloc(8*sizeof(struct ccw1),
+ if ((ch->ccw = kmalloc(8*sizeof(struct ccw1),
GFP_KERNEL | GFP_DMA)) == NULL) {
kfree(ch);
ctc_pr_warn("ctc: Out of memory in add_channel\n");
return -1;
}
fsm_newstate(ch->fsm, CH_STATE_IDLE);
- if ((ch->irb = (struct irb *) kmalloc(sizeof (struct irb),
+ if ((ch->irb = kmalloc(sizeof (struct irb),
GFP_KERNEL)) == NULL) {
ctc_pr_warn("ctc: Out of memory in add_channel\n");
kfree_fsm(ch->fsm);
kfree(ch);
return 0;
}
+
+ spin_lock_init(&ch->collect_lock);
+
fsm_settimer(ch->fsm, &ch->timer);
skb_queue_head_init(&ch->io_queue);
skb_queue_head_init(&ch->collect_queue);
irb->scsw.dstat);
return;
}
-
+
priv = ((struct ccwgroup_device *)cdev->dev.driver_data)
->dev.driver_data;
"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",
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);
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)) {
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;
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;
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
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);
/**
* 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++;
DBF_TEXT(trace, 4, __FUNCTION__);
if (!priv)
return;
- sbuf = (char *)kmalloc(2048, GFP_KERNEL);
+ sbuf = kmalloc(2048, GFP_KERNEL);
if (sbuf == NULL)
return;
p = sbuf;
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
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;
static int
ctc_add_attributes(struct device *dev)
{
- device_create_file(dev, &dev_attr_loglevel);
- device_create_file(dev, &dev_attr_stats);
- return 0;
+ int rc;
+
+ rc = device_create_file(dev, &dev_attr_loglevel);
+ if (rc)
+ goto out;
+ rc = device_create_file(dev, &dev_attr_stats);
+ if (!rc)
+ goto out;
+ device_remove_file(dev, &dev_attr_loglevel);
+out:
+ return rc;
}
static void
/**
* Add ctc specific attributes.
* Add ctc private data.
- *
+ *
* @param cgdev pointer to ccwgroup_device just added
*
* @returns 0 on success, !0 on failure.
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);
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);
goto out;
}
- ctc_add_attributes(&cgdev->dev);
+ if (ctc_add_attributes(&cgdev->dev)) {
+ ctc_netdev_unregister(dev);
+ dev->priv = NULL;
+ ctc_free_netdevice(dev, 1);
+ goto out;
+ }
strlcpy(privptr->fsm->name, dev->name, sizeof (privptr->fsm->name));
{
struct ctc_priv *priv;
struct net_device *ndev;
-
+
DBF_TEXT(setup, 3, __FUNCTION__);
pr_debug("%s() called\n", __FUNCTION__);
{
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");
}
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;
git://git.onelab.eu / linux-2.6.git / blobdiff