/*
* IUCV network driver
*
- * Copyright (C) 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ * Copyright 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Author(s): Fritz Elfert (elfert@de.ibm.com, felfert@millenux.com)
*
* Sysfs integration and all bugs therein by Cornelia Huck
#include <asm/io.h>
#include <asm/uaccess.h>
-#include "iucv.h"
+#include <net/iucv/iucv.h>
#include "fsm.h"
MODULE_AUTHOR
("(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"
+#define IUCV_DBF_SETUP_LEN 32
+#define IUCV_DBF_SETUP_PAGES 2
+#define IUCV_DBF_SETUP_NR_AREAS 1
+#define IUCV_DBF_SETUP_LEVEL 3
+
+#define IUCV_DBF_DATA_NAME "iucv_data"
+#define IUCV_DBF_DATA_LEN 128
+#define IUCV_DBF_DATA_PAGES 2
+#define IUCV_DBF_DATA_NR_AREAS 1
+#define IUCV_DBF_DATA_LEVEL 2
+
+#define IUCV_DBF_TRACE_NAME "iucv_trace"
+#define IUCV_DBF_TRACE_LEN 16
+#define IUCV_DBF_TRACE_PAGES 4
+#define IUCV_DBF_TRACE_NR_AREAS 1
+#define IUCV_DBF_TRACE_LEVEL 3
+
+#define IUCV_DBF_TEXT(name,level,text) \
+ do { \
+ debug_text_event(iucv_dbf_##name,level,text); \
+ } while (0)
+
+#define IUCV_DBF_HEX(name,level,addr,len) \
+ do { \
+ debug_event(iucv_dbf_##name,level,(void*)(addr),len); \
+ } while (0)
+
+DECLARE_PER_CPU(char[256], iucv_dbf_txt_buf);
+
+#define IUCV_DBF_TEXT_(name,level,text...) \
+ do { \
+ char* iucv_dbf_txt_buf = get_cpu_var(iucv_dbf_txt_buf); \
+ sprintf(iucv_dbf_txt_buf, text); \
+ debug_text_event(iucv_dbf_##name,level,iucv_dbf_txt_buf); \
+ put_cpu_var(iucv_dbf_txt_buf); \
+ } while (0)
+
+#define IUCV_DBF_SPRINTF(name,level,text...) \
+ do { \
+ debug_sprintf_event(iucv_dbf_trace, level, ##text ); \
+ debug_sprintf_event(iucv_dbf_trace, level, text ); \
+ } while (0)
+
+/**
+ * some more debug stuff
+ */
+#define IUCV_HEXDUMP16(importance,header,ptr) \
+PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \
+ "%02x %02x %02x %02x %02x %02x %02x %02x\n", \
+ *(((char*)ptr)),*(((char*)ptr)+1),*(((char*)ptr)+2), \
+ *(((char*)ptr)+3),*(((char*)ptr)+4),*(((char*)ptr)+5), \
+ *(((char*)ptr)+6),*(((char*)ptr)+7),*(((char*)ptr)+8), \
+ *(((char*)ptr)+9),*(((char*)ptr)+10),*(((char*)ptr)+11), \
+ *(((char*)ptr)+12),*(((char*)ptr)+13), \
+ *(((char*)ptr)+14),*(((char*)ptr)+15)); \
+PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \
+ "%02x %02x %02x %02x %02x %02x %02x %02x\n", \
+ *(((char*)ptr)+16),*(((char*)ptr)+17), \
+ *(((char*)ptr)+18),*(((char*)ptr)+19), \
+ *(((char*)ptr)+20),*(((char*)ptr)+21), \
+ *(((char*)ptr)+22),*(((char*)ptr)+23), \
+ *(((char*)ptr)+24),*(((char*)ptr)+25), \
+ *(((char*)ptr)+26),*(((char*)ptr)+27), \
+ *(((char*)ptr)+28),*(((char*)ptr)+29), \
+ *(((char*)ptr)+30),*(((char*)ptr)+31));
+
+static inline void iucv_hex_dump(unsigned char *buf, size_t len)
+{
+ size_t i;
+
+ for (i = 0; i < len; i++) {
+ if (i && !(i % 16))
+ printk("\n");
+ printk("%02x ", *(buf + i));
+ }
+ printk("\n");
+}
#define PRINTK_HEADER " iucv: " /* for debugging */
.bus = &iucv_bus,
};
+static int netiucv_callback_connreq(struct iucv_path *,
+ u8 ipvmid[8], u8 ipuser[16]);
+static void netiucv_callback_connack(struct iucv_path *, u8 ipuser[16]);
+static void netiucv_callback_connrej(struct iucv_path *, u8 ipuser[16]);
+static void netiucv_callback_connsusp(struct iucv_path *, u8 ipuser[16]);
+static void netiucv_callback_connres(struct iucv_path *, u8 ipuser[16]);
+static void netiucv_callback_rx(struct iucv_path *, struct iucv_message *);
+static void netiucv_callback_txdone(struct iucv_path *, struct iucv_message *);
+
+static struct iucv_handler netiucv_handler = {
+ .path_pending = netiucv_callback_connreq,
+ .path_complete = netiucv_callback_connack,
+ .path_severed = netiucv_callback_connrej,
+ .path_quiesced = netiucv_callback_connsusp,
+ .path_resumed = netiucv_callback_connres,
+ .message_pending = netiucv_callback_rx,
+ .message_complete = netiucv_callback_txdone
+};
+
/**
* Per connection profiling data
*/
* Representation of one iucv connection
*/
struct iucv_connection {
- struct iucv_connection *next;
- iucv_handle_t handle;
- __u16 pathid;
+ struct list_head list;
+ struct iucv_path *path;
struct sk_buff *rx_buff;
struct sk_buff *tx_buff;
struct sk_buff_head collect_queue;
/**
* Linked list of all connection structs.
*/
-static struct iucv_connection *iucv_connections;
+static struct list_head iucv_connection_list =
+ LIST_HEAD_INIT(iucv_connection_list);
+static rwlock_t iucv_connection_rwlock = RW_LOCK_UNLOCKED;
/**
* Representation of event-data for the
/**
* Link level header for a packet.
*/
-typedef struct ll_header_t {
- __u16 next;
-} ll_header;
+struct ll_header {
+ u16 next;
+};
-#define NETIUCV_HDRLEN (sizeof(ll_header))
+#define NETIUCV_HDRLEN (sizeof(struct ll_header))
#define NETIUCV_BUFSIZE_MAX 32768
#define NETIUCV_BUFSIZE_DEFAULT NETIUCV_BUFSIZE_MAX
#define NETIUCV_MTU_MAX (NETIUCV_BUFSIZE_MAX - NETIUCV_HDRLEN)
* Compatibility macros for busy handling
* of network devices.
*/
-static __inline__ void netiucv_clear_busy(struct net_device *dev)
+static inline void netiucv_clear_busy(struct net_device *dev)
{
- clear_bit(0, &(((struct netiucv_priv *)dev->priv)->tbusy));
+ struct netiucv_priv *priv = netdev_priv(dev);
+ clear_bit(0, &priv->tbusy);
netif_wake_queue(dev);
}
-static __inline__ int netiucv_test_and_set_busy(struct net_device *dev)
+static inline int netiucv_test_and_set_busy(struct net_device *dev)
{
+ struct netiucv_priv *priv = netdev_priv(dev);
netif_stop_queue(dev);
- return test_and_set_bit(0, &((struct netiucv_priv *)dev->priv)->tbusy);
+ return test_and_set_bit(0, &priv->tbusy);
}
-static __u8 iucv_host[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
-static __u8 iucvMagic[16] = {
+static u8 iucvMagic[16] = {
0xF0, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
0xF0, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40
};
-/**
- * This mask means the 16-byte IUCV "magic" and the origin userid must
- * match exactly as specified in order to give connection_pending()
- * control.
- */
-static __u8 netiucv_mask[] = {
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
-};
-
/**
* Convert an iucv userId to its printable
* form (strip whitespace at end).
*
* @returns The printable string (static data!!)
*/
-static __inline__ char *
-netiucv_printname(char *name)
+static inline char *netiucv_printname(char *name)
{
static char tmp[9];
char *p = tmp;
DEFINE_PER_CPU(char[256], iucv_dbf_txt_buf);
-static void
-iucv_unregister_dbf_views(void)
+static void iucv_unregister_dbf_views(void)
{
if (iucv_dbf_setup)
debug_unregister(iucv_dbf_setup);
if (iucv_dbf_trace)
debug_unregister(iucv_dbf_trace);
}
-static int
-iucv_register_dbf_views(void)
+static int iucv_register_dbf_views(void)
{
iucv_dbf_setup = debug_register(IUCV_DBF_SETUP_NAME,
IUCV_DBF_SETUP_PAGES,
return 0;
}
-/**
+/*
* Callback-wrappers, called from lowlevel iucv layer.
- *****************************************************************************/
+ */
-static void
-netiucv_callback_rx(iucv_MessagePending *eib, void *pgm_data)
+static void netiucv_callback_rx(struct iucv_path *path,
+ struct iucv_message *msg)
{
- struct iucv_connection *conn = (struct iucv_connection *)pgm_data;
+ struct iucv_connection *conn = path->private;
struct iucv_event ev;
ev.conn = conn;
- ev.data = (void *)eib;
-
+ ev.data = msg;
fsm_event(conn->fsm, CONN_EVENT_RX, &ev);
}
-static void
-netiucv_callback_txdone(iucv_MessageComplete *eib, void *pgm_data)
+static void netiucv_callback_txdone(struct iucv_path *path,
+ struct iucv_message *msg)
{
- struct iucv_connection *conn = (struct iucv_connection *)pgm_data;
+ struct iucv_connection *conn = path->private;
struct iucv_event ev;
ev.conn = conn;
- ev.data = (void *)eib;
+ ev.data = msg;
fsm_event(conn->fsm, CONN_EVENT_TXDONE, &ev);
}
-static void
-netiucv_callback_connack(iucv_ConnectionComplete *eib, void *pgm_data)
+static void netiucv_callback_connack(struct iucv_path *path, u8 ipuser[16])
{
- struct iucv_connection *conn = (struct iucv_connection *)pgm_data;
- struct iucv_event ev;
+ struct iucv_connection *conn = path->private;
- ev.conn = conn;
- ev.data = (void *)eib;
- fsm_event(conn->fsm, CONN_EVENT_CONN_ACK, &ev);
+ fsm_event(conn->fsm, CONN_EVENT_CONN_ACK, conn);
}
-static void
-netiucv_callback_connreq(iucv_ConnectionPending *eib, void *pgm_data)
+static int netiucv_callback_connreq(struct iucv_path *path,
+ u8 ipvmid[8], u8 ipuser[16])
{
- struct iucv_connection *conn = (struct iucv_connection *)pgm_data;
+ struct iucv_connection *conn = path->private;
struct iucv_event ev;
+ int rc;
- ev.conn = conn;
- ev.data = (void *)eib;
- fsm_event(conn->fsm, CONN_EVENT_CONN_REQ, &ev);
+ if (memcmp(iucvMagic, ipuser, sizeof(ipuser)))
+ /* ipuser must match iucvMagic. */
+ return -EINVAL;
+ rc = -EINVAL;
+ read_lock_bh(&iucv_connection_rwlock);
+ list_for_each_entry(conn, &iucv_connection_list, list) {
+ if (strncmp(ipvmid, conn->userid, 8))
+ continue;
+ /* Found a matching connection for this path. */
+ conn->path = path;
+ ev.conn = conn;
+ ev.data = path;
+ fsm_event(conn->fsm, CONN_EVENT_CONN_REQ, &ev);
+ rc = 0;
+ }
+ read_unlock_bh(&iucv_connection_rwlock);
+ return rc;
}
-static void
-netiucv_callback_connrej(iucv_ConnectionSevered *eib, void *pgm_data)
+static void netiucv_callback_connrej(struct iucv_path *path, u8 ipuser[16])
{
- struct iucv_connection *conn = (struct iucv_connection *)pgm_data;
- struct iucv_event ev;
+ struct iucv_connection *conn = path->private;
- ev.conn = conn;
- ev.data = (void *)eib;
- fsm_event(conn->fsm, CONN_EVENT_CONN_REJ, &ev);
+ fsm_event(conn->fsm, CONN_EVENT_CONN_REJ, conn);
}
-static void
-netiucv_callback_connsusp(iucv_ConnectionQuiesced *eib, void *pgm_data)
+static void netiucv_callback_connsusp(struct iucv_path *path, u8 ipuser[16])
{
- struct iucv_connection *conn = (struct iucv_connection *)pgm_data;
- struct iucv_event ev;
+ struct iucv_connection *conn = path->private;
- ev.conn = conn;
- ev.data = (void *)eib;
- fsm_event(conn->fsm, CONN_EVENT_CONN_SUS, &ev);
+ fsm_event(conn->fsm, CONN_EVENT_CONN_SUS, conn);
}
-static void
-netiucv_callback_connres(iucv_ConnectionResumed *eib, void *pgm_data)
+static void netiucv_callback_connres(struct iucv_path *path, u8 ipuser[16])
{
- struct iucv_connection *conn = (struct iucv_connection *)pgm_data;
- struct iucv_event ev;
+ struct iucv_connection *conn = path->private;
- ev.conn = conn;
- ev.data = (void *)eib;
- fsm_event(conn->fsm, CONN_EVENT_CONN_RES, &ev);
-}
-
-static iucv_interrupt_ops_t netiucv_ops = {
- .ConnectionPending = netiucv_callback_connreq,
- .ConnectionComplete = netiucv_callback_connack,
- .ConnectionSevered = netiucv_callback_connrej,
- .ConnectionQuiesced = netiucv_callback_connsusp,
- .ConnectionResumed = netiucv_callback_connres,
- .MessagePending = netiucv_callback_rx,
- .MessageComplete = netiucv_callback_txdone
-};
+ fsm_event(conn->fsm, CONN_EVENT_CONN_RES, conn);
+}
/**
* Dummy NOP action for all statemachines
*/
-static void
-fsm_action_nop(fsm_instance *fi, int event, void *arg)
+static void fsm_action_nop(fsm_instance *fi, int event, void *arg)
{
}
-/**
+/*
* Actions of the connection statemachine
- *****************************************************************************/
+ */
/**
- * Helper function for conn_action_rx()
- * Unpack a just received skb and hand it over to
- * upper layers.
+ * netiucv_unpack_skb
+ * @conn: The connection where this skb has been received.
+ * @pskb: The received skb.
*
- * @param conn The connection where this skb has been received.
- * @param pskb The received skb.
+ * Unpack a just received skb and hand it over to upper layers.
+ * Helper function for conn_action_rx.
*/
-//static __inline__ void
-static void
-netiucv_unpack_skb(struct iucv_connection *conn, struct sk_buff *pskb)
+static void netiucv_unpack_skb(struct iucv_connection *conn,
+ struct sk_buff *pskb)
{
struct net_device *dev = conn->netdev;
- struct netiucv_priv *privptr = dev->priv;
- __u16 offset = 0;
+ struct netiucv_priv *privptr = netdev_priv(dev);
+ u16 offset = 0;
skb_put(pskb, NETIUCV_HDRLEN);
pskb->dev = dev;
while (1) {
struct sk_buff *skb;
- ll_header *header = (ll_header *)pskb->data;
+ struct ll_header *header = (struct ll_header *) pskb->data;
if (!header->next)
break;
}
}
-static void
-conn_action_rx(fsm_instance *fi, int event, void *arg)
+static void conn_action_rx(fsm_instance *fi, int event, void *arg)
{
- struct iucv_event *ev = (struct iucv_event *)arg;
+ struct iucv_event *ev = arg;
struct iucv_connection *conn = ev->conn;
- iucv_MessagePending *eib = (iucv_MessagePending *)ev->data;
- struct netiucv_priv *privptr =(struct netiucv_priv *)conn->netdev->priv;
-
- __u32 msglen = eib->ln1msg2.ipbfln1f;
+ struct iucv_message *msg = ev->data;
+ struct netiucv_priv *privptr = netdev_priv(conn->netdev);
int rc;
IUCV_DBF_TEXT(trace, 4, __FUNCTION__);
if (!conn->netdev) {
- /* FRITZ: How to tell iucv LL to drop the msg? */
+ iucv_message_reject(conn->path, msg);
PRINT_WARN("Received data for unlinked connection\n");
IUCV_DBF_TEXT(data, 2,
- "Received data for unlinked connection\n");
+ "Received data for unlinked connection\n");
return;
}
- if (msglen > conn->max_buffsize) {
- /* FRITZ: How to tell iucv LL to drop the msg? */
+ if (msg->length > conn->max_buffsize) {
+ iucv_message_reject(conn->path, msg);
privptr->stats.rx_dropped++;
PRINT_WARN("msglen %d > max_buffsize %d\n",
- msglen, conn->max_buffsize);
+ msg->length, conn->max_buffsize);
IUCV_DBF_TEXT_(data, 2, "msglen %d > max_buffsize %d\n",
- msglen, conn->max_buffsize);
+ msg->length, conn->max_buffsize);
return;
}
conn->rx_buff->data = conn->rx_buff->tail = conn->rx_buff->head;
conn->rx_buff->len = 0;
- rc = iucv_receive(conn->pathid, eib->ipmsgid, eib->iptrgcls,
- conn->rx_buff->data, msglen, NULL, NULL, NULL);
- if (rc || msglen < 5) {
+ rc = iucv_message_receive(conn->path, msg, 0, conn->rx_buff->data,
+ msg->length, NULL);
+ if (rc || msg->length < 5) {
privptr->stats.rx_errors++;
PRINT_WARN("iucv_receive returned %08x\n", rc);
IUCV_DBF_TEXT_(data, 2, "rc %d from iucv_receive\n", rc);
netiucv_unpack_skb(conn, conn->rx_buff);
}
-static void
-conn_action_txdone(fsm_instance *fi, int event, void *arg)
+static void conn_action_txdone(fsm_instance *fi, int event, void *arg)
{
- struct iucv_event *ev = (struct iucv_event *)arg;
+ struct iucv_event *ev = arg;
struct iucv_connection *conn = ev->conn;
- iucv_MessageComplete *eib = (iucv_MessageComplete *)ev->data;
+ struct iucv_message *msg = ev->data;
+ struct iucv_message txmsg;
struct netiucv_priv *privptr = NULL;
- /* Shut up, gcc! skb is always below 2G. */
- __u32 single_flag = eib->ipmsgtag;
- __u32 txbytes = 0;
- __u32 txpackets = 0;
- __u32 stat_maxcq = 0;
+ u32 single_flag = msg->tag;
+ u32 txbytes = 0;
+ u32 txpackets = 0;
+ u32 stat_maxcq = 0;
struct sk_buff *skb;
unsigned long saveflags;
- ll_header header;
+ struct ll_header header;
+ int rc;
IUCV_DBF_TEXT(trace, 4, __FUNCTION__);
- if (conn && conn->netdev && conn->netdev->priv)
- privptr = (struct netiucv_priv *)conn->netdev->priv;
+ if (conn && conn->netdev)
+ privptr = netdev_priv(conn->netdev);
conn->prof.tx_pending--;
if (single_flag) {
if ((skb = skb_dequeue(&conn->commit_queue))) {
conn->prof.maxmulti = conn->collect_len;
conn->collect_len = 0;
spin_unlock_irqrestore(&conn->collect_lock, saveflags);
- if (conn->tx_buff->len) {
- int rc;
-
- header.next = 0;
- memcpy(skb_put(conn->tx_buff, NETIUCV_HDRLEN), &header,
- NETIUCV_HDRLEN);
+ if (conn->tx_buff->len == 0) {
+ fsm_newstate(fi, CONN_STATE_IDLE);
+ return;
+ }
- conn->prof.send_stamp = xtime;
- rc = iucv_send(conn->pathid, NULL, 0, 0, 0, 0,
+ header.next = 0;
+ memcpy(skb_put(conn->tx_buff, NETIUCV_HDRLEN), &header, NETIUCV_HDRLEN);
+ conn->prof.send_stamp = xtime;
+ txmsg.class = 0;
+ txmsg.tag = 0;
+ rc = iucv_message_send(conn->path, &txmsg, 0, 0,
conn->tx_buff->data, conn->tx_buff->len);
- conn->prof.doios_multi++;
- conn->prof.txlen += conn->tx_buff->len;
- conn->prof.tx_pending++;
- if (conn->prof.tx_pending > conn->prof.tx_max_pending)
- conn->prof.tx_max_pending = conn->prof.tx_pending;
- if (rc) {
- conn->prof.tx_pending--;
- fsm_newstate(fi, CONN_STATE_IDLE);
- if (privptr)
- privptr->stats.tx_errors += txpackets;
- PRINT_WARN("iucv_send returned %08x\n", rc);
- IUCV_DBF_TEXT_(data, 2, "rc %d from iucv_send\n", rc);
- } else {
- if (privptr) {
- privptr->stats.tx_packets += txpackets;
- privptr->stats.tx_bytes += txbytes;
- }
- if (stat_maxcq > conn->prof.maxcqueue)
- conn->prof.maxcqueue = stat_maxcq;
- }
- } else
+ conn->prof.doios_multi++;
+ conn->prof.txlen += conn->tx_buff->len;
+ conn->prof.tx_pending++;
+ if (conn->prof.tx_pending > conn->prof.tx_max_pending)
+ conn->prof.tx_max_pending = conn->prof.tx_pending;
+ if (rc) {
+ conn->prof.tx_pending--;
fsm_newstate(fi, CONN_STATE_IDLE);
+ if (privptr)
+ privptr->stats.tx_errors += txpackets;
+ PRINT_WARN("iucv_send returned %08x\n", rc);
+ IUCV_DBF_TEXT_(data, 2, "rc %d from iucv_send\n", rc);
+ } else {
+ if (privptr) {
+ privptr->stats.tx_packets += txpackets;
+ privptr->stats.tx_bytes += txbytes;
+ }
+ if (stat_maxcq > conn->prof.maxcqueue)
+ conn->prof.maxcqueue = stat_maxcq;
+ }
}
-static void
-conn_action_connaccept(fsm_instance *fi, int event, void *arg)
+static void conn_action_connaccept(fsm_instance *fi, int event, void *arg)
{
- struct iucv_event *ev = (struct iucv_event *)arg;
+ struct iucv_event *ev = arg;
struct iucv_connection *conn = ev->conn;
- iucv_ConnectionPending *eib = (iucv_ConnectionPending *)ev->data;
+ struct iucv_path *path = ev->data;
struct net_device *netdev = conn->netdev;
- struct netiucv_priv *privptr = (struct netiucv_priv *)netdev->priv;
+ struct netiucv_priv *privptr = netdev_priv(netdev);
int rc;
- __u16 msglimit;
- __u8 udata[16];
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
- rc = iucv_accept(eib->ippathid, NETIUCV_QUEUELEN_DEFAULT, udata, 0,
- conn->handle, conn, NULL, &msglimit);
+ conn->path = path;
+ path->msglim = NETIUCV_QUEUELEN_DEFAULT;
+ path->flags = 0;
+ rc = iucv_path_accept(path, &netiucv_handler, NULL, conn);
if (rc) {
PRINT_WARN("%s: IUCV accept failed with error %d\n",
netdev->name, rc);
return;
}
fsm_newstate(fi, CONN_STATE_IDLE);
- conn->pathid = eib->ippathid;
- netdev->tx_queue_len = msglimit;
+ netdev->tx_queue_len = conn->path->msglim;
fsm_event(privptr->fsm, DEV_EVENT_CONUP, netdev);
}
-static void
-conn_action_connreject(fsm_instance *fi, int event, void *arg)
+static void conn_action_connreject(fsm_instance *fi, int event, void *arg)
{
- struct iucv_event *ev = (struct iucv_event *)arg;
- struct iucv_connection *conn = ev->conn;
- struct net_device *netdev = conn->netdev;
- iucv_ConnectionPending *eib = (iucv_ConnectionPending *)ev->data;
- __u8 udata[16];
+ struct iucv_event *ev = arg;
+ struct iucv_path *path = ev->data;
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
-
- iucv_sever(eib->ippathid, udata);
- if (eib->ippathid != conn->pathid) {
- PRINT_INFO("%s: IR Connection Pending; "
- "pathid %d does not match original pathid %d\n",
- netdev->name, eib->ippathid, conn->pathid);
- IUCV_DBF_TEXT_(data, 2,
- "connreject: IR pathid %d, conn. pathid %d\n",
- eib->ippathid, conn->pathid);
- iucv_sever(conn->pathid, udata);
- }
+ iucv_path_sever(path, NULL);
}
-static void
-conn_action_connack(fsm_instance *fi, int event, void *arg)
+static void conn_action_connack(fsm_instance *fi, int event, void *arg)
{
- struct iucv_event *ev = (struct iucv_event *)arg;
- struct iucv_connection *conn = ev->conn;
- iucv_ConnectionComplete *eib = (iucv_ConnectionComplete *)ev->data;
+ struct iucv_connection *conn = arg;
struct net_device *netdev = conn->netdev;
- struct netiucv_priv *privptr = (struct netiucv_priv *)netdev->priv;
+ struct netiucv_priv *privptr = netdev_priv(netdev);
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
-
fsm_deltimer(&conn->timer);
fsm_newstate(fi, CONN_STATE_IDLE);
- if (eib->ippathid != conn->pathid) {
- PRINT_INFO("%s: IR Connection Complete; "
- "pathid %d does not match original pathid %d\n",
- netdev->name, eib->ippathid, conn->pathid);
- IUCV_DBF_TEXT_(data, 2,
- "connack: IR pathid %d, conn. pathid %d\n",
- eib->ippathid, conn->pathid);
- conn->pathid = eib->ippathid;
- }
- netdev->tx_queue_len = eib->ipmsglim;
+ netdev->tx_queue_len = conn->path->msglim;
fsm_event(privptr->fsm, DEV_EVENT_CONUP, netdev);
}
-static void
-conn_action_conntimsev(fsm_instance *fi, int event, void *arg)
+static void conn_action_conntimsev(fsm_instance *fi, int event, void *arg)
{
- struct iucv_connection *conn = (struct iucv_connection *)arg;
- __u8 udata[16];
+ struct iucv_connection *conn = arg;
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
-
fsm_deltimer(&conn->timer);
- iucv_sever(conn->pathid, udata);
+ iucv_path_sever(conn->path, NULL);
fsm_newstate(fi, CONN_STATE_STARTWAIT);
}
-static void
-conn_action_connsever(fsm_instance *fi, int event, void *arg)
+static void conn_action_connsever(fsm_instance *fi, int event, void *arg)
{
- struct iucv_event *ev = (struct iucv_event *)arg;
- struct iucv_connection *conn = ev->conn;
+ struct iucv_connection *conn = arg;
struct net_device *netdev = conn->netdev;
- struct netiucv_priv *privptr = (struct netiucv_priv *)netdev->priv;
- __u8 udata[16];
+ struct netiucv_priv *privptr = netdev_priv(netdev);
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
fsm_deltimer(&conn->timer);
- iucv_sever(conn->pathid, udata);
+ iucv_path_sever(conn->path, NULL);
PRINT_INFO("%s: Remote dropped connection\n", netdev->name);
IUCV_DBF_TEXT(data, 2,
- "conn_action_connsever: Remote dropped connection\n");
+ "conn_action_connsever: Remote dropped connection\n");
fsm_newstate(fi, CONN_STATE_STARTWAIT);
fsm_event(privptr->fsm, DEV_EVENT_CONDOWN, netdev);
}
-static void
-conn_action_start(fsm_instance *fi, int event, void *arg)
+static void conn_action_start(fsm_instance *fi, int event, void *arg)
{
- struct iucv_event *ev = (struct iucv_event *)arg;
- struct iucv_connection *conn = ev->conn;
- __u16 msglimit;
+ struct iucv_connection *conn = arg;
int rc;
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
- if (!conn->handle) {
- IUCV_DBF_TEXT(trace, 5, "calling iucv_register_program\n");
- conn->handle =
- iucv_register_program(iucvMagic, conn->userid,
- netiucv_mask,
- &netiucv_ops, conn);
- fsm_newstate(fi, CONN_STATE_STARTWAIT);
- if (!conn->handle) {
- fsm_newstate(fi, CONN_STATE_REGERR);
- conn->handle = NULL;
- IUCV_DBF_TEXT(setup, 2,
- "NULL from iucv_register_program\n");
- return;
- }
-
- PRINT_DEBUG("%s('%s'): registered successfully\n",
- conn->netdev->name, conn->userid);
- }
-
+ fsm_newstate(fi, CONN_STATE_STARTWAIT);
PRINT_DEBUG("%s('%s'): connecting ...\n",
- conn->netdev->name, conn->userid);
+ conn->netdev->name, conn->userid);
- /* We must set the state before calling iucv_connect because the callback
- * handler could be called at any point after the connection request is
- * sent */
+ /*
+ * We must set the state before calling iucv_connect because the
+ * callback handler could be called at any point after the connection
+ * request is sent
+ */
fsm_newstate(fi, CONN_STATE_SETUPWAIT);
- rc = iucv_connect(&(conn->pathid), NETIUCV_QUEUELEN_DEFAULT, iucvMagic,
- conn->userid, iucv_host, 0, NULL, &msglimit,
- conn->handle, conn);
+ conn->path = iucv_path_alloc(NETIUCV_QUEUELEN_DEFAULT, 0, GFP_KERNEL);
+ rc = iucv_path_connect(conn->path, &netiucv_handler, conn->userid,
+ NULL, iucvMagic, conn);
switch (rc) {
- case 0:
- conn->netdev->tx_queue_len = msglimit;
- fsm_addtimer(&conn->timer, NETIUCV_TIMEOUT_5SEC,
- CONN_EVENT_TIMER, conn);
- return;
- case 11:
- PRINT_INFO("%s: User %s is currently not available.\n",
- conn->netdev->name,
- netiucv_printname(conn->userid));
- fsm_newstate(fi, CONN_STATE_STARTWAIT);
- return;
- case 12:
- PRINT_INFO("%s: User %s is currently not ready.\n",
- conn->netdev->name,
- netiucv_printname(conn->userid));
- fsm_newstate(fi, CONN_STATE_STARTWAIT);
- return;
- case 13:
- PRINT_WARN("%s: Too many IUCV connections.\n",
- conn->netdev->name);
- fsm_newstate(fi, CONN_STATE_CONNERR);
- break;
- case 14:
- PRINT_WARN(
- "%s: User %s has too many IUCV connections.\n",
- conn->netdev->name,
- netiucv_printname(conn->userid));
- fsm_newstate(fi, CONN_STATE_CONNERR);
- break;
- case 15:
- PRINT_WARN(
- "%s: No IUCV authorization in CP directory.\n",
- conn->netdev->name);
- fsm_newstate(fi, CONN_STATE_CONNERR);
- break;
- default:
- PRINT_WARN("%s: iucv_connect returned error %d\n",
- conn->netdev->name, rc);
- fsm_newstate(fi, CONN_STATE_CONNERR);
- break;
+ case 0:
+ conn->netdev->tx_queue_len = conn->path->msglim;
+ fsm_addtimer(&conn->timer, NETIUCV_TIMEOUT_5SEC,
+ CONN_EVENT_TIMER, conn);
+ return;
+ case 11:
+ PRINT_INFO("%s: User %s is currently not available.\n",
+ conn->netdev->name,
+ netiucv_printname(conn->userid));
+ fsm_newstate(fi, CONN_STATE_STARTWAIT);
+ break;
+ case 12:
+ PRINT_INFO("%s: User %s is currently not ready.\n",
+ conn->netdev->name,
+ netiucv_printname(conn->userid));
+ fsm_newstate(fi, CONN_STATE_STARTWAIT);
+ break;
+ case 13:
+ PRINT_WARN("%s: Too many IUCV connections.\n",
+ conn->netdev->name);
+ fsm_newstate(fi, CONN_STATE_CONNERR);
+ break;
+ case 14:
+ PRINT_WARN("%s: User %s has too many IUCV connections.\n",
+ conn->netdev->name,
+ netiucv_printname(conn->userid));
+ fsm_newstate(fi, CONN_STATE_CONNERR);
+ break;
+ case 15:
+ PRINT_WARN("%s: No IUCV authorization in CP directory.\n",
+ conn->netdev->name);
+ fsm_newstate(fi, CONN_STATE_CONNERR);
+ break;
+ default:
+ PRINT_WARN("%s: iucv_connect returned error %d\n",
+ conn->netdev->name, rc);
+ fsm_newstate(fi, CONN_STATE_CONNERR);
+ break;
}
IUCV_DBF_TEXT_(setup, 5, "iucv_connect rc is %d\n", rc);
- IUCV_DBF_TEXT(trace, 5, "calling iucv_unregister_program\n");
- iucv_unregister_program(conn->handle);
- conn->handle = NULL;
+ kfree(conn->path);
+ conn->path = NULL;
}
-static void
-netiucv_purge_skb_queue(struct sk_buff_head *q)
+static void netiucv_purge_skb_queue(struct sk_buff_head *q)
{
struct sk_buff *skb;
}
}
-static void
-conn_action_stop(fsm_instance *fi, int event, void *arg)
+static void conn_action_stop(fsm_instance *fi, int event, void *arg)
{
- struct iucv_event *ev = (struct iucv_event *)arg;
+ struct iucv_event *ev = arg;
struct iucv_connection *conn = ev->conn;
struct net_device *netdev = conn->netdev;
- struct netiucv_priv *privptr = (struct netiucv_priv *)netdev->priv;
+ struct netiucv_priv *privptr = netdev_priv(netdev);
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
fsm_deltimer(&conn->timer);
fsm_newstate(fi, CONN_STATE_STOPPED);
netiucv_purge_skb_queue(&conn->collect_queue);
- if (conn->handle)
- IUCV_DBF_TEXT(trace, 5, "calling iucv_unregister_program\n");
- iucv_unregister_program(conn->handle);
- conn->handle = NULL;
+ if (conn->path) {
+ IUCV_DBF_TEXT(trace, 5, "calling iucv_path_sever\n");
+ iucv_path_sever(conn->path, iucvMagic);
+ kfree(conn->path);
+ conn->path = NULL;
+ }
netiucv_purge_skb_queue(&conn->commit_queue);
fsm_event(privptr->fsm, DEV_EVENT_CONDOWN, netdev);
}
-static void
-conn_action_inval(fsm_instance *fi, int event, void *arg)
+static void conn_action_inval(fsm_instance *fi, int event, void *arg)
{
- struct iucv_event *ev = (struct iucv_event *)arg;
- struct iucv_connection *conn = ev->conn;
+ struct iucv_connection *conn = arg;
struct net_device *netdev = conn->netdev;
- PRINT_WARN("%s: Cannot connect without username\n",
- netdev->name);
+ PRINT_WARN("%s: Cannot connect without username\n", netdev->name);
IUCV_DBF_TEXT(data, 2, "conn_action_inval called\n");
}
static const int CONN_FSM_LEN = sizeof(conn_fsm) / sizeof(fsm_node);
-/**
+/*
* Actions for interface - statemachine.
- *****************************************************************************/
+ */
/**
- * Startup connection by sending CONN_EVENT_START to it.
+ * dev_action_start
+ * @fi: An instance of an interface statemachine.
+ * @event: The event, just happened.
+ * @arg: Generic pointer, casted from struct net_device * upon call.
*
- * @param fi An instance of an interface statemachine.
- * @param event The event, just happened.
- * @param arg Generic pointer, casted from struct net_device * upon call.
+ * Startup connection by sending CONN_EVENT_START to it.
*/
-static void
-dev_action_start(fsm_instance *fi, int event, void *arg)
+static void dev_action_start(fsm_instance *fi, int event, void *arg)
{
- struct net_device *dev = (struct net_device *)arg;
- struct netiucv_priv *privptr = dev->priv;
- struct iucv_event ev;
+ struct net_device *dev = arg;
+ struct netiucv_priv *privptr = netdev_priv(dev);
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
- ev.conn = privptr->conn;
fsm_newstate(fi, DEV_STATE_STARTWAIT);
- fsm_event(privptr->conn->fsm, CONN_EVENT_START, &ev);
+ fsm_event(privptr->conn->fsm, CONN_EVENT_START, privptr->conn);
}
/**
static void
dev_action_stop(fsm_instance *fi, int event, void *arg)
{
- struct net_device *dev = (struct net_device *)arg;
- struct netiucv_priv *privptr = dev->priv;
+ struct net_device *dev = arg;
+ struct netiucv_priv *privptr = netdev_priv(dev);
struct iucv_event ev;
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
static void
dev_action_connup(fsm_instance *fi, int event, void *arg)
{
- struct net_device *dev = (struct net_device *)arg;
- struct netiucv_priv *privptr = dev->priv;
+ struct net_device *dev = arg;
+ struct netiucv_priv *privptr = netdev_priv(dev);
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
*
* @return 0 on success, -ERRNO on failure. (Never fails.)
*/
-static int
-netiucv_transmit_skb(struct iucv_connection *conn, struct sk_buff *skb) {
+static int netiucv_transmit_skb(struct iucv_connection *conn,
+ struct sk_buff *skb)
+{
+ struct iucv_message msg;
unsigned long saveflags;
- ll_header header;
- int rc = 0;
+ struct ll_header header;
+ int rc;
if (fsm_getstate(conn->fsm) != CONN_STATE_IDLE) {
int l = skb->len + NETIUCV_HDRLEN;
(conn->max_buffsize - NETIUCV_HDRLEN)) {
rc = -EBUSY;
IUCV_DBF_TEXT(data, 2,
- "EBUSY from netiucv_transmit_skb\n");
+ "EBUSY from netiucv_transmit_skb\n");
} else {
atomic_inc(&skb->users);
skb_queue_tail(&conn->collect_queue, skb);
conn->collect_len += l;
+ rc = 0;
}
spin_unlock_irqrestore(&conn->collect_lock, saveflags);
} else {
fsm_newstate(conn->fsm, CONN_STATE_TX);
conn->prof.send_stamp = xtime;
- rc = iucv_send(conn->pathid, NULL, 0, 0, 1 /* single_flag */,
- 0, nskb->data, nskb->len);
- /* Shut up, gcc! nskb is always below 2G. */
+ msg.tag = 1;
+ msg.class = 0;
+ rc = iucv_message_send(conn->path, &msg, 0, 0,
+ nskb->data, nskb->len);
conn->prof.doios_single++;
conn->prof.txlen += skb->len;
conn->prof.tx_pending++;
struct netiucv_priv *privptr;
fsm_newstate(conn->fsm, CONN_STATE_IDLE);
conn->prof.tx_pending--;
- privptr = (struct netiucv_priv *)conn->netdev->priv;
+ privptr = netdev_priv(conn->netdev);
if (privptr)
privptr->stats.tx_errors++;
if (copied)
return rc;
}
-/**
+/*
* Interface API for upper network layers
- *****************************************************************************/
+ */
/**
* Open an interface.
*
* @return 0 on success, -ERRNO on failure. (Never fails.)
*/
-static int
-netiucv_open(struct net_device *dev) {
- fsm_event(((struct netiucv_priv *)dev->priv)->fsm, DEV_EVENT_START,dev);
+static int netiucv_open(struct net_device *dev)
+{
+ struct netiucv_priv *priv = netdev_priv(dev);
+
+ fsm_event(priv->fsm, DEV_EVENT_START, dev);
return 0;
}
*
* @return 0 on success, -ERRNO on failure. (Never fails.)
*/
-static int
-netiucv_close(struct net_device *dev) {
- fsm_event(((struct netiucv_priv *)dev->priv)->fsm, DEV_EVENT_STOP, dev);
+static int netiucv_close(struct net_device *dev)
+{
+ struct netiucv_priv *priv = netdev_priv(dev);
+
+ fsm_event(priv->fsm, DEV_EVENT_STOP, dev);
return 0;
}
*/
static int netiucv_tx(struct sk_buff *skb, struct net_device *dev)
{
- int rc = 0;
- struct netiucv_priv *privptr = dev->priv;
+ struct netiucv_priv *privptr = netdev_priv(dev);
+ int rc;
IUCV_DBF_TEXT(trace, 4, __FUNCTION__);
/**
return -EBUSY;
}
dev->trans_start = jiffies;
- if (netiucv_transmit_skb(privptr->conn, skb))
- rc = 1;
+ rc = netiucv_transmit_skb(privptr->conn, skb) != 0;
netiucv_clear_busy(dev);
return rc;
}
/**
- * Returns interface statistics of a device.
+ * netiucv_stats
+ * @dev: Pointer to interface struct.
*
- * @param dev Pointer to interface struct.
+ * Returns interface statistics of a device.
*
- * @return Pointer to stats struct of this interface.
+ * Returns pointer to stats struct of this interface.
*/
-static struct net_device_stats *
-netiucv_stats (struct net_device * dev)
+static struct net_device_stats *netiucv_stats (struct net_device * dev)
{
+ struct netiucv_priv *priv = netdev_priv(dev);
+
IUCV_DBF_TEXT(trace, 5, __FUNCTION__);
- return &((struct netiucv_priv *)dev->priv)->stats;
+ return &priv->stats;
}
/**
- * Sets MTU of an interface.
+ * netiucv_change_mtu
+ * @dev: Pointer to interface struct.
+ * @new_mtu: The new MTU to use for this interface.
*
- * @param dev Pointer to interface struct.
- * @param new_mtu The new MTU to use for this interface.
+ * Sets MTU of an interface.
*
- * @return 0 on success, -EINVAL if MTU is out of valid range.
+ * Returns 0 on success, -EINVAL if MTU is out of valid range.
* (valid range is 576 .. NETIUCV_MTU_MAX).
*/
-static int
-netiucv_change_mtu (struct net_device * dev, int new_mtu)
+static int netiucv_change_mtu(struct net_device * dev, int new_mtu)
{
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
- if ((new_mtu < 576) || (new_mtu > NETIUCV_MTU_MAX)) {
+ if (new_mtu < 576 || new_mtu > NETIUCV_MTU_MAX) {
IUCV_DBF_TEXT(setup, 2, "given MTU out of valid range\n");
return -EINVAL;
}
return 0;
}
-/**
+/*
* attributes in sysfs
- *****************************************************************************/
+ */
-static ssize_t
-user_show (struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t user_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct netiucv_priv *priv = dev->driver_data;
return sprintf(buf, "%s\n", netiucv_printname(priv->conn->userid));
}
-static ssize_t
-user_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t user_write(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct netiucv_priv *priv = dev->driver_data;
struct net_device *ndev = priv->conn->netdev;
char *p;
char *tmp;
- char username[10];
+ char username[9];
int i;
+ struct iucv_connection *cp;
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
- if (count>9) {
- PRINT_WARN("netiucv: username too long (%d)!\n", (int)count);
+ if (count > 9) {
+ PRINT_WARN("netiucv: username too long (%d)!\n", (int) count);
IUCV_DBF_TEXT_(setup, 2,
- "%d is length of username\n", (int)count);
+ "%d is length of username\n", (int) count);
return -EINVAL;
}
tmp = strsep((char **) &buf, "\n");
- for (i=0, p=tmp; i<8 && *p; i++, p++) {
- if (isalnum(*p) || (*p == '$'))
- username[i]= *p;
- else if (*p == '\n') {
+ for (i = 0, p = tmp; i < 8 && *p; i++, p++) {
+ if (isalnum(*p) || (*p == '$')) {
+ username[i]= toupper(*p);
+ continue;
+ }
+ if (*p == '\n') {
/* trailing lf, grr */
break;
- } else {
- PRINT_WARN("netiucv: Invalid char %c in username!\n",
- *p);
- IUCV_DBF_TEXT_(setup, 2,
- "username: invalid character %c\n",
- *p);
- return -EINVAL;
}
+ PRINT_WARN("netiucv: Invalid char %c in username!\n", *p);
+ IUCV_DBF_TEXT_(setup, 2,
+ "username: invalid character %c\n", *p);
+ return -EINVAL;
}
- while (i<9)
+ while (i < 8)
username[i++] = ' ';
- username[9] = '\0';
-
- if (memcmp(username, priv->conn->userid, 8)) {
- /* username changed */
- if (ndev->flags & (IFF_UP | IFF_RUNNING)) {
- PRINT_WARN(
- "netiucv: device %s active, connected to %s\n",
- dev->bus_id, priv->conn->userid);
- PRINT_WARN("netiucv: user cannot be updated\n");
- IUCV_DBF_TEXT(setup, 2, "user_write: device active\n");
- return -EBUSY;
+ username[8] = '\0';
+
+ if (memcmp(username, priv->conn->userid, 9) &&
+ (ndev->flags & (IFF_UP | IFF_RUNNING))) {
+ /* username changed while the interface is active. */
+ PRINT_WARN("netiucv: device %s active, connected to %s\n",
+ dev->bus_id, priv->conn->userid);
+ PRINT_WARN("netiucv: user cannot be updated\n");
+ IUCV_DBF_TEXT(setup, 2, "user_write: device active\n");
+ return -EBUSY;
+ }
+ read_lock_bh(&iucv_connection_rwlock);
+ list_for_each_entry(cp, &iucv_connection_list, list) {
+ if (!strncmp(username, cp->userid, 9) && cp->netdev != ndev) {
+ read_unlock_bh(&iucv_connection_rwlock);
+ PRINT_WARN("netiucv: Connection to %s already "
+ "exists\n", username);
+ return -EEXIST;
}
}
+ read_unlock_bh(&iucv_connection_rwlock);
memcpy(priv->conn->userid, username, 9);
-
return count;
-
}
static DEVICE_ATTR(user, 0644, user_show, user_write);
-static ssize_t
-buffer_show (struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct netiucv_priv *priv = dev->driver_data;
+static ssize_t buffer_show (struct device *dev, struct device_attribute *attr,
+ char *buf)
+{ struct netiucv_priv *priv = dev->driver_data;
IUCV_DBF_TEXT(trace, 5, __FUNCTION__);
return sprintf(buf, "%d\n", priv->conn->max_buffsize);
}
-static ssize_t
-buffer_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t buffer_write (struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct netiucv_priv *priv = dev->driver_data;
struct net_device *ndev = priv->conn->netdev;
static DEVICE_ATTR(buffer, 0644, buffer_show, buffer_write);
-static ssize_t
-dev_fsm_show (struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t dev_fsm_show (struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct netiucv_priv *priv = dev->driver_data;
static DEVICE_ATTR(device_fsm_state, 0444, dev_fsm_show, NULL);
-static ssize_t
-conn_fsm_show (struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t conn_fsm_show (struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct netiucv_priv *priv = dev->driver_data;
static DEVICE_ATTR(connection_fsm_state, 0444, conn_fsm_show, NULL);
-static ssize_t
-maxmulti_show (struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t maxmulti_show (struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct netiucv_priv *priv = dev->driver_data;
return sprintf(buf, "%ld\n", priv->conn->prof.maxmulti);
}
-static ssize_t
-maxmulti_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t maxmulti_write (struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct netiucv_priv *priv = dev->driver_data;
static DEVICE_ATTR(max_tx_buffer_used, 0644, maxmulti_show, maxmulti_write);
-static ssize_t
-maxcq_show (struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t maxcq_show (struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct netiucv_priv *priv = dev->driver_data;
return sprintf(buf, "%ld\n", priv->conn->prof.maxcqueue);
}
-static ssize_t
-maxcq_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t maxcq_write (struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct netiucv_priv *priv = dev->driver_data;
static DEVICE_ATTR(max_chained_skbs, 0644, maxcq_show, maxcq_write);
-static ssize_t
-sdoio_show (struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t sdoio_show (struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct netiucv_priv *priv = dev->driver_data;
return sprintf(buf, "%ld\n", priv->conn->prof.doios_single);
}
-static ssize_t
-sdoio_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t sdoio_write (struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct netiucv_priv *priv = dev->driver_data;
static DEVICE_ATTR(tx_single_write_ops, 0644, sdoio_show, sdoio_write);
-static ssize_t
-mdoio_show (struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t mdoio_show (struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct netiucv_priv *priv = dev->driver_data;
return sprintf(buf, "%ld\n", priv->conn->prof.doios_multi);
}
-static ssize_t
-mdoio_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t mdoio_write (struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct netiucv_priv *priv = dev->driver_data;
static DEVICE_ATTR(tx_multi_write_ops, 0644, mdoio_show, mdoio_write);
-static ssize_t
-txlen_show (struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t txlen_show (struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct netiucv_priv *priv = dev->driver_data;
return sprintf(buf, "%ld\n", priv->conn->prof.txlen);
}
-static ssize_t
-txlen_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t txlen_write (struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct netiucv_priv *priv = dev->driver_data;
static DEVICE_ATTR(netto_bytes, 0644, txlen_show, txlen_write);
-static ssize_t
-txtime_show (struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t txtime_show (struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct netiucv_priv *priv = dev->driver_data;
return sprintf(buf, "%ld\n", priv->conn->prof.tx_time);
}
-static ssize_t
-txtime_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t txtime_write (struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct netiucv_priv *priv = dev->driver_data;
static DEVICE_ATTR(max_tx_io_time, 0644, txtime_show, txtime_write);
-static ssize_t
-txpend_show (struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t txpend_show (struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct netiucv_priv *priv = dev->driver_data;
return sprintf(buf, "%ld\n", priv->conn->prof.tx_pending);
}
-static ssize_t
-txpend_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t txpend_write (struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct netiucv_priv *priv = dev->driver_data;
static DEVICE_ATTR(tx_pending, 0644, txpend_show, txpend_write);
-static ssize_t
-txmpnd_show (struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t txmpnd_show (struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct netiucv_priv *priv = dev->driver_data;
return sprintf(buf, "%ld\n", priv->conn->prof.tx_max_pending);
}
-static ssize_t
-txmpnd_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t txmpnd_write (struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct netiucv_priv *priv = dev->driver_data;
.attrs = netiucv_stat_attrs,
};
-static inline int
-netiucv_add_files(struct device *dev)
+static inline int netiucv_add_files(struct device *dev)
{
int ret;
return ret;
}
-static inline void
-netiucv_remove_files(struct device *dev)
+static inline void netiucv_remove_files(struct device *dev)
{
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
sysfs_remove_group(&dev->kobj, &netiucv_stat_attr_group);
sysfs_remove_group(&dev->kobj, &netiucv_attr_group);
}
-static int
-netiucv_register_device(struct net_device *ndev)
+static int netiucv_register_device(struct net_device *ndev)
{
- struct netiucv_priv *priv = ndev->priv;
+ struct netiucv_priv *priv = netdev_priv(ndev);
struct device *dev = kzalloc(sizeof(struct device), GFP_KERNEL);
int ret;
return ret;
}
-static void
-netiucv_unregister_device(struct device *dev)
+static void netiucv_unregister_device(struct device *dev)
{
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
netiucv_remove_files(dev);
* Allocate and initialize a new connection structure.
* Add it to the list of netiucv connections;
*/
-static struct iucv_connection *
-netiucv_new_connection(struct net_device *dev, char *username)
-{
- struct iucv_connection **clist = &iucv_connections;
- struct iucv_connection *conn =
- kzalloc(sizeof(struct iucv_connection), GFP_KERNEL);
-
- if (conn) {
- skb_queue_head_init(&conn->collect_queue);
- skb_queue_head_init(&conn->commit_queue);
- conn->max_buffsize = NETIUCV_BUFSIZE_DEFAULT;
- conn->netdev = dev;
-
- conn->rx_buff = alloc_skb(NETIUCV_BUFSIZE_DEFAULT,
- GFP_KERNEL | GFP_DMA);
- if (!conn->rx_buff) {
- kfree(conn);
- return NULL;
- }
- conn->tx_buff = alloc_skb(NETIUCV_BUFSIZE_DEFAULT,
- GFP_KERNEL | GFP_DMA);
- if (!conn->tx_buff) {
- kfree_skb(conn->rx_buff);
- kfree(conn);
- return NULL;
- }
- conn->fsm = init_fsm("netiucvconn", conn_state_names,
- conn_event_names, NR_CONN_STATES,
- NR_CONN_EVENTS, conn_fsm, CONN_FSM_LEN,
- GFP_KERNEL);
- if (!conn->fsm) {
- kfree_skb(conn->tx_buff);
- kfree_skb(conn->rx_buff);
- kfree(conn);
- return NULL;
- }
- fsm_settimer(conn->fsm, &conn->timer);
- fsm_newstate(conn->fsm, CONN_STATE_INVALID);
-
- if (username) {
- memcpy(conn->userid, username, 9);
- fsm_newstate(conn->fsm, CONN_STATE_STOPPED);
- }
+static struct iucv_connection *netiucv_new_connection(struct net_device *dev,
+ char *username)
+{
+ struct iucv_connection *conn;
- conn->next = *clist;
- *clist = conn;
+ conn = kzalloc(sizeof(*conn), GFP_KERNEL);
+ if (!conn)
+ goto out;
+ skb_queue_head_init(&conn->collect_queue);
+ skb_queue_head_init(&conn->commit_queue);
+ spin_lock_init(&conn->collect_lock);
+ conn->max_buffsize = NETIUCV_BUFSIZE_DEFAULT;
+ conn->netdev = dev;
+
+ conn->rx_buff = alloc_skb(conn->max_buffsize, GFP_KERNEL | GFP_DMA);
+ if (!conn->rx_buff)
+ goto out_conn;
+ conn->tx_buff = alloc_skb(conn->max_buffsize, GFP_KERNEL | GFP_DMA);
+ if (!conn->tx_buff)
+ goto out_rx;
+ conn->fsm = init_fsm("netiucvconn", conn_state_names,
+ conn_event_names, NR_CONN_STATES,
+ NR_CONN_EVENTS, conn_fsm, CONN_FSM_LEN,
+ GFP_KERNEL);
+ if (!conn->fsm)
+ goto out_tx;
+
+ fsm_settimer(conn->fsm, &conn->timer);
+ fsm_newstate(conn->fsm, CONN_STATE_INVALID);
+
+ if (username) {
+ memcpy(conn->userid, username, 9);
+ fsm_newstate(conn->fsm, CONN_STATE_STOPPED);
}
+
+ write_lock_bh(&iucv_connection_rwlock);
+ list_add_tail(&conn->list, &iucv_connection_list);
+ write_unlock_bh(&iucv_connection_rwlock);
return conn;
+
+out_tx:
+ kfree_skb(conn->tx_buff);
+out_rx:
+ kfree_skb(conn->rx_buff);
+out_conn:
+ kfree(conn);
+out:
+ return NULL;
}
/**
* Release a connection structure and remove it from the
* list of netiucv connections.
*/
-static void
-netiucv_remove_connection(struct iucv_connection *conn)
+static void netiucv_remove_connection(struct iucv_connection *conn)
{
- struct iucv_connection **clist = &iucv_connections;
-
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
- if (conn == NULL)
- return;
- while (*clist) {
- if (*clist == conn) {
- *clist = conn->next;
- if (conn->handle) {
- iucv_unregister_program(conn->handle);
- conn->handle = NULL;
- }
- fsm_deltimer(&conn->timer);
- kfree_fsm(conn->fsm);
- kfree_skb(conn->rx_buff);
- kfree_skb(conn->tx_buff);
- return;
- }
- clist = &((*clist)->next);
+ write_lock_bh(&iucv_connection_rwlock);
+ list_del_init(&conn->list);
+ write_unlock_bh(&iucv_connection_rwlock);
+ if (conn->path) {
+ iucv_path_sever(conn->path, iucvMagic);
+ kfree(conn->path);
+ conn->path = NULL;
}
+ fsm_deltimer(&conn->timer);
+ kfree_fsm(conn->fsm);
+ kfree_skb(conn->rx_buff);
+ kfree_skb(conn->tx_buff);
}
/**
* Release everything of a net device.
*/
-static void
-netiucv_free_netdevice(struct net_device *dev)
+static void netiucv_free_netdevice(struct net_device *dev)
{
- struct netiucv_priv *privptr;
+ struct netiucv_priv *privptr = netdev_priv(dev);
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
if (!dev)
return;
- privptr = (struct netiucv_priv *)dev->priv;
if (privptr) {
if (privptr->conn)
netiucv_remove_connection(privptr->conn);
/**
* Initialize a net device. (Called from kernel in alloc_netdev())
*/
-static void
-netiucv_setup_netdevice(struct net_device *dev)
+static void netiucv_setup_netdevice(struct net_device *dev)
{
- memset(dev->priv, 0, sizeof(struct netiucv_priv));
-
dev->mtu = NETIUCV_MTU_DEFAULT;
dev->hard_start_xmit = netiucv_tx;
dev->open = netiucv_open;
/**
* Allocate and initialize everything of a net device.
*/
-static struct net_device *
-netiucv_init_netdevice(char *username)
+static struct net_device *netiucv_init_netdevice(char *username)
{
struct netiucv_priv *privptr;
struct net_device *dev;
netiucv_setup_netdevice);
if (!dev)
return NULL;
- if (dev_alloc_name(dev, dev->name) < 0) {
- free_netdev(dev);
- return NULL;
- }
+ if (dev_alloc_name(dev, dev->name) < 0)
+ goto out_netdev;
- privptr = (struct netiucv_priv *)dev->priv;
+ privptr = netdev_priv(dev);
privptr->fsm = init_fsm("netiucvdev", dev_state_names,
dev_event_names, NR_DEV_STATES, NR_DEV_EVENTS,
dev_fsm, DEV_FSM_LEN, GFP_KERNEL);
- if (!privptr->fsm) {
- free_netdev(dev);
- return NULL;
- }
+ if (!privptr->fsm)
+ goto out_netdev;
+
privptr->conn = netiucv_new_connection(dev, username);
if (!privptr->conn) {
- kfree_fsm(privptr->fsm);
- free_netdev(dev);
IUCV_DBF_TEXT(setup, 2, "NULL from netiucv_new_connection\n");
- return NULL;
+ goto out_fsm;
}
fsm_newstate(privptr->fsm, DEV_STATE_STOPPED);
-
return dev;
+
+out_fsm:
+ kfree_fsm(privptr->fsm);
+out_netdev:
+ free_netdev(dev);
+ return NULL;
}
-static ssize_t
-conn_write(struct device_driver *drv, const char *buf, size_t count)
+static ssize_t conn_write(struct device_driver *drv,
+ const char *buf, size_t count)
{
- char *p;
- char username[10];
- int i, ret;
+ const char *p;
+ char username[9];
+ int i, rc;
struct net_device *dev;
+ struct netiucv_priv *priv;
+ struct iucv_connection *cp;
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
if (count>9) {
return -EINVAL;
}
- for (i=0, p=(char *)buf; i<8 && *p; i++, p++) {
- if (isalnum(*p) || (*p == '$'))
- username[i]= *p;
- else if (*p == '\n') {
+ for (i = 0, p = buf; i < 8 && *p; i++, p++) {
+ if (isalnum(*p) || *p == '$') {
+ username[i] = toupper(*p);
+ continue;
+ }
+ if (*p == '\n')
/* trailing lf, grr */
break;
- } else {
- PRINT_WARN("netiucv: Invalid character in username!\n");
- IUCV_DBF_TEXT_(setup, 2,
- "conn_write: invalid character %c\n", *p);
- return -EINVAL;
- }
+ PRINT_WARN("netiucv: Invalid character in username!\n");
+ IUCV_DBF_TEXT_(setup, 2,
+ "conn_write: invalid character %c\n", *p);
+ return -EINVAL;
}
- while (i<9)
+ while (i < 8)
username[i++] = ' ';
- username[9] = '\0';
+ username[8] = '\0';
+
+ read_lock_bh(&iucv_connection_rwlock);
+ list_for_each_entry(cp, &iucv_connection_list, list) {
+ if (!strncmp(username, cp->userid, 9)) {
+ read_unlock_bh(&iucv_connection_rwlock);
+ PRINT_WARN("netiucv: Connection to %s already "
+ "exists\n", username);
+ return -EEXIST;
+ }
+ }
+ read_unlock_bh(&iucv_connection_rwlock);
+
dev = netiucv_init_netdevice(username);
if (!dev) {
- PRINT_WARN(
- "netiucv: Could not allocate network device structure "
- "for user '%s'\n", netiucv_printname(username));
+ PRINT_WARN("netiucv: Could not allocate network device "
+ "structure for user '%s'\n",
+ netiucv_printname(username));
IUCV_DBF_TEXT(setup, 2, "NULL from netiucv_init_netdevice\n");
return -ENODEV;
}
- if ((ret = netiucv_register_device(dev))) {
+ rc = netiucv_register_device(dev);
+ if (rc) {
IUCV_DBF_TEXT_(setup, 2,
- "ret %d from netiucv_register_device\n", ret);
+ "ret %d from netiucv_register_device\n", rc);
goto out_free_ndev;
}
/* sysfs magic */
- SET_NETDEV_DEV(dev,
- (struct device*)((struct netiucv_priv*)dev->priv)->dev);
+ priv = netdev_priv(dev);
+ SET_NETDEV_DEV(dev, priv->dev);
- if ((ret = register_netdev(dev))) {
- netiucv_unregister_device((struct device*)
- ((struct netiucv_priv*)dev->priv)->dev);
- goto out_free_ndev;
- }
+ rc = register_netdev(dev);
+ if (rc)
+ goto out_unreg;
PRINT_INFO("%s: '%s'\n", dev->name, netiucv_printname(username));
return count;
+out_unreg:
+ netiucv_unregister_device(priv->dev);
out_free_ndev:
PRINT_WARN("netiucv: Could not register '%s'\n", dev->name);
IUCV_DBF_TEXT(setup, 2, "conn_write: could not register\n");
netiucv_free_netdevice(dev);
- return ret;
+ return rc;
}
-DRIVER_ATTR(connection, 0200, NULL, conn_write);
+static DRIVER_ATTR(connection, 0200, NULL, conn_write);
-static ssize_t
-remove_write (struct device_driver *drv, const char *buf, size_t count)
+static ssize_t remove_write (struct device_driver *drv,
+ const char *buf, size_t count)
{
- struct iucv_connection **clist = &iucv_connections;
+ struct iucv_connection *cp;
struct net_device *ndev;
struct netiucv_priv *priv;
struct device *dev;
char name[IFNAMSIZ];
- char *p;
+ const char *p;
int i;
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
if (count >= IFNAMSIZ)
- count = IFNAMSIZ-1;
+ count = IFNAMSIZ - 1;;
- for (i=0, p=(char *)buf; i<count && *p; i++, p++) {
- if ((*p == '\n') | (*p == ' ')) {
+ for (i = 0, p = buf; i < count && *p; i++, p++) {
+ if (*p == '\n' || *p == ' ')
/* trailing lf, grr */
break;
- } else {
- name[i]=*p;
- }
+ name[i] = *p;
}
name[i] = '\0';
- while (*clist) {
- ndev = (*clist)->netdev;
- priv = (struct netiucv_priv*)ndev->priv;
+ read_lock_bh(&iucv_connection_rwlock);
+ list_for_each_entry(cp, &iucv_connection_list, list) {
+ ndev = cp->netdev;
+ priv = netdev_priv(ndev);
dev = priv->dev;
-
- if (strncmp(name, ndev->name, count)) {
- clist = &((*clist)->next);
- continue;
- }
+ if (strncmp(name, ndev->name, count))
+ continue;
+ read_unlock_bh(&iucv_connection_rwlock);
if (ndev->flags & (IFF_UP | IFF_RUNNING)) {
- PRINT_WARN(
- "netiucv: net device %s active with peer %s\n",
- ndev->name, priv->conn->userid);
+ PRINT_WARN("netiucv: net device %s active with peer "
+ "%s\n", ndev->name, priv->conn->userid);
PRINT_WARN("netiucv: %s cannot be removed\n",
- ndev->name);
+ ndev->name);
IUCV_DBF_TEXT(data, 2, "remove_write: still active\n");
return -EBUSY;
}
netiucv_unregister_device(dev);
return count;
}
+ read_unlock_bh(&iucv_connection_rwlock);
PRINT_WARN("netiucv: net device %s unknown\n", name);
IUCV_DBF_TEXT(data, 2, "remove_write: unknown device\n");
return -EINVAL;
}
-DRIVER_ATTR(remove, 0200, NULL, remove_write);
+static DRIVER_ATTR(remove, 0200, NULL, remove_write);
-static void
-netiucv_banner(void)
+static struct attribute * netiucv_drv_attrs[] = {
+ &driver_attr_connection.attr,
+ &driver_attr_remove.attr,
+ NULL,
+};
+
+static struct attribute_group netiucv_drv_attr_group = {
+ .attrs = netiucv_drv_attrs,
+};
+
+static void netiucv_banner(void)
{
PRINT_INFO("NETIUCV driver initialized\n");
}
-static void __exit
-netiucv_exit(void)
+static void __exit netiucv_exit(void)
{
+ struct iucv_connection *cp;
+ struct net_device *ndev;
+ struct netiucv_priv *priv;
+ struct device *dev;
+
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
- while (iucv_connections) {
- struct net_device *ndev = iucv_connections->netdev;
- struct netiucv_priv *priv = (struct netiucv_priv*)ndev->priv;
- struct device *dev = priv->dev;
+ while (!list_empty(&iucv_connection_list)) {
+ cp = list_entry(iucv_connection_list.next,
+ struct iucv_connection, list);
+ list_del(&cp->list);
+ ndev = cp->netdev;
+ priv = netdev_priv(ndev);
+ dev = priv->dev;
unregister_netdev(ndev);
netiucv_unregister_device(dev);
}
- driver_remove_file(&netiucv_driver, &driver_attr_connection);
- driver_remove_file(&netiucv_driver, &driver_attr_remove);
+ sysfs_remove_group(&netiucv_driver.kobj, &netiucv_drv_attr_group);
driver_unregister(&netiucv_driver);
+ iucv_unregister(&netiucv_handler, 1);
iucv_unregister_dbf_views();
PRINT_INFO("NETIUCV driver unloaded\n");
return;
}
-static int __init
-netiucv_init(void)
+static int __init netiucv_init(void)
{
- int ret;
+ int rc;
- ret = iucv_register_dbf_views();
- if (ret) {
- PRINT_WARN("netiucv_init failed, "
- "iucv_register_dbf_views rc = %d\n", ret);
- return ret;
- }
+ rc = iucv_register_dbf_views();
+ if (rc)
+ goto out;
+ rc = iucv_register(&netiucv_handler, 1);
+ if (rc)
+ goto out_dbf;
IUCV_DBF_TEXT(trace, 3, __FUNCTION__);
- ret = driver_register(&netiucv_driver);
- if (ret) {
+ rc = driver_register(&netiucv_driver);
+ if (rc) {
PRINT_ERR("NETIUCV: failed to register driver.\n");
- IUCV_DBF_TEXT_(setup, 2, "ret %d from driver_register\n", ret);
- iucv_unregister_dbf_views();
- return ret;
+ IUCV_DBF_TEXT_(setup, 2, "ret %d from driver_register\n", rc);
+ goto out_iucv;
}
- /* Add entry for specifying connections. */
- ret = driver_create_file(&netiucv_driver, &driver_attr_connection);
- if (!ret) {
- ret = driver_create_file(&netiucv_driver, &driver_attr_remove);
- netiucv_banner();
- } else {
- PRINT_ERR("NETIUCV: failed to add driver attribute.\n");
- IUCV_DBF_TEXT_(setup, 2, "ret %d from driver_create_file\n", ret);
- driver_unregister(&netiucv_driver);
- iucv_unregister_dbf_views();
+ rc = sysfs_create_group(&netiucv_driver.kobj, &netiucv_drv_attr_group);
+ if (rc) {
+ PRINT_ERR("NETIUCV: failed to add driver attributes.\n");
+ IUCV_DBF_TEXT_(setup, 2,
+ "ret %d - netiucv_drv_attr_group\n", rc);
+ goto out_driver;
}
- return ret;
+ netiucv_banner();
+ return rc;
+
+out_driver:
+ driver_unregister(&netiucv_driver);
+out_iucv:
+ iucv_unregister(&netiucv_handler, 1);
+out_dbf:
+ iucv_unregister_dbf_views();
+out:
+ return rc;
}
module_init(netiucv_init);
projects / linux-drm-fsl-dcu.git / blobdiff