("(C) 2001 IBM Corporation by Fritz Elfert (felfert@millenux.com)");
MODULE_DESCRIPTION ("Linux for S/390 IUCV network driver");
-/**
+/*
* Debug Facility stuff
*/
#define IUCV_DBF_SETUP_NAME "iucv_setup"
debug_sprintf_event(iucv_dbf_trace, level, text ); \
} while (0)
-/**
+/*
* some more debug stuff
*/
#define PRINTK_HEADER " iucv: " /* for debugging */
.bus = &iucv_bus,
};
-/**
+/*
* Per connection profiling data
*/
struct connection_profile {
unsigned long tx_max_pending;
};
-/**
+/*
* Representation of one iucv connection
*/
struct iucv_connection {
char userdata[17];
};
-/**
+/*
* Linked list of all connection structs.
*/
static LIST_HEAD(iucv_connection_list);
static DEFINE_RWLOCK(iucv_connection_rwlock);
-/**
+/*
* Representation of event-data for the
* connection state machine.
*/
void *data;
};
-/**
+/*
* Private part of the network device structure
*/
struct netiucv_priv {
struct device *dev;
};
-/**
+/*
* Link level header for a packet.
*/
struct ll_header {
#define NETIUCV_QUEUELEN_DEFAULT 50
#define NETIUCV_TIMEOUT_5SEC 5000
-/**
+/*
* Compatibility macros for busy handling
* of network devices.
*/
0xF0, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40
};
-/**
+/*
* Convert an iucv userId to its printable
* form (strip whitespace at end).
*
return netiucv_printname(conn->userid, 8);
}
-/**
+/*
* States of the interface statemachine.
*/
enum dev_states {
DEV_STATE_STARTWAIT,
DEV_STATE_STOPWAIT,
DEV_STATE_RUNNING,
- /**
+ /*
* MUST be always the last element!!
*/
NR_DEV_STATES
"Running",
};
-/**
+/*
* Events of the interface statemachine.
*/
enum dev_events {
DEV_EVENT_STOP,
DEV_EVENT_CONUP,
DEV_EVENT_CONDOWN,
- /**
+ /*
* MUST be always the last element!!
*/
NR_DEV_EVENTS
"Connection down",
};
-/**
+/*
* Events of the connection statemachine
*/
enum conn_events {
- /**
+ /*
* Events, representing callbacks from
* lowlevel iucv layer)
*/
CONN_EVENT_RX,
CONN_EVENT_TXDONE,
- /**
+ /*
* Events, representing errors return codes from
* calls to lowlevel iucv layer
*/
- /**
+ /*
* Event, representing timer expiry.
*/
CONN_EVENT_TIMER,
- /**
+ /*
* Events, representing commands from upper levels.
*/
CONN_EVENT_START,
CONN_EVENT_STOP,
- /**
+ /*
* MUST be always the last element!!
*/
NR_CONN_EVENTS,
"Stop",
};
-/**
+/*
* States of the connection statemachine.
*/
enum conn_states {
- /**
+ /*
* Connection not assigned to any device,
* initial state, invalid
*/
CONN_STATE_INVALID,
- /**
+ /*
* Userid assigned but not operating
*/
CONN_STATE_STOPPED,
- /**
+ /*
* Connection registered,
* no connection request sent yet,
* no connection request received
*/
CONN_STATE_STARTWAIT,
- /**
+ /*
* Connection registered and connection request sent,
* no acknowledge and no connection request received yet.
*/
CONN_STATE_SETUPWAIT,
- /**
+ /*
* Connection up and running idle
*/
CONN_STATE_IDLE,
- /**
+ /*
* Data sent, awaiting CONN_EVENT_TXDONE
*/
CONN_STATE_TX,
- /**
+ /*
* Error during registration.
*/
CONN_STATE_REGERR,
- /**
+ /*
* Error during registration.
*/
CONN_STATE_CONNERR,
- /**
+ /*
* MUST be always the last element!!
*/
NR_CONN_STATES,
};
-/**
+/*
* Debug Facility Stuff
*/
static debug_info_t *iucv_dbf_setup = NULL;
fsm_event(conn->fsm, CONN_EVENT_CONN_RES, conn);
}
-/**
+/*
* NOP action for statemachines
*/
static void netiucv_action_nop(fsm_instance *fi, int event, void *arg)
* Actions of the connection statemachine
*/
-/**
+/*
* netiucv_unpack_skb
* @conn: The connection where this skb has been received.
* @pskb: The received skb.
* Actions for interface - statemachine.
*/
-/**
+/*
* dev_action_start
* @fi: An instance of an interface statemachine.
* @event: The event, just happened.
fsm_event(privptr->conn->fsm, CONN_EVENT_START, privptr->conn);
}
-/**
+/*
* Shutdown connection by sending CONN_EVENT_STOP to it.
*
* @param fi An instance of an interface statemachine.
fsm_event(privptr->conn->fsm, CONN_EVENT_STOP, &ev);
}
-/**
+/*
* Called from connection statemachine
* when a connection is up and running.
*
}
}
-/**
+/*
* Called from connection statemachine
* when a connection has been shutdown.
*
static const int DEV_FSM_LEN = sizeof(dev_fsm) / sizeof(fsm_node);
-/**
+/*
* Transmit a packet.
* This is a helper function for netiucv_tx().
*
spin_unlock_irqrestore(&conn->collect_lock, saveflags);
} else {
struct sk_buff *nskb = skb;
- /**
+ /*
* Copy the skb to a new allocated skb in lowmem only if the
* data is located above 2G in memory or tailroom is < 2.
*/
}
copied = 1;
}
- /**
+ /*
* skb now is below 2G and has enough room. Add headers.
*/
header.next = nskb->len + NETIUCV_HDRLEN;
if (copied)
dev_kfree_skb(nskb);
else {
- /**
+ /*
* Remove our headers. They get added
* again on retransmit.
*/
* Interface API for upper network layers
*/
-/**
+/*
* Open an interface.
* Called from generic network layer when ifconfig up is run.
*
return 0;
}
-/**
+/*
* Close an interface.
* Called from generic network layer when ifconfig down is run.
*
return 0;
}
-/**
+/*
* Start transmission of a packet.
* Called from generic network device layer.
*
int rc;
IUCV_DBF_TEXT(trace, 4, __func__);
- /**
+ /*
* Some sanity checks ...
*/
if (skb == NULL) {
return NETDEV_TX_OK;
}
- /**
+ /*
* If connection is not running, try to restart it
* and throw away packet.
*/
return rc ? NETDEV_TX_BUSY : NETDEV_TX_OK;
}
-/**
+/*
* netiucv_stats
* @dev: Pointer to interface struct.
*
device_unregister(dev);
}
-/**
+/*
* Allocate and initialize a new connection structure.
* Add it to the list of netiucv connections;
*/
return NULL;
}
-/**
+/*
* Release a connection structure and remove it from the
* list of netiucv connections.
*/
kfree_skb(conn->tx_buff);
}
-/**
+/*
* Release everything of a net device.
*/
static void netiucv_free_netdevice(struct net_device *dev)
}
}
-/**
+/*
* Initialize a net device. (Called from kernel in alloc_netdev())
*/
static const struct net_device_ops netiucv_netdev_ops = {
dev->netdev_ops = &netiucv_netdev_ops;
}
-/**
+/*
* Allocate and initialize everything of a net device.
*/
static struct net_device *netiucv_init_netdevice(char *username, char *userdata)