s390: remove claw driver
authorUrsula Braun <ursula.braun@de.ibm.com>
Fri, 27 Feb 2015 11:52:32 +0000 (12:52 +0100)
committerDavid S. Miller <davem@davemloft.net>
Sun, 1 Mar 2015 04:38:29 +0000 (23:38 -0500)
claw devices are outdated and no longer supported.
This patch removes the claw driver.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
arch/s390/kernel/irq.c
drivers/s390/net/Kconfig
drivers/s390/net/Makefile
drivers/s390/net/claw.c [deleted file]
drivers/s390/net/claw.h [deleted file]

index f238720..0220e7d 100644 (file)
@@ -79,7 +79,6 @@ static const struct irq_class irqclass_sub_desc[NR_ARCH_IRQS] = {
        {.irq = IRQIO_TAP,  .name = "TAP", .desc = "[I/O] Tape"},
        {.irq = IRQIO_VMR,  .name = "VMR", .desc = "[I/O] Unit Record Devices"},
        {.irq = IRQIO_LCS,  .name = "LCS", .desc = "[I/O] LCS"},
-       {.irq = IRQIO_CLW,  .name = "CLW", .desc = "[I/O] CLAW"},
        {.irq = IRQIO_CTC,  .name = "CTC", .desc = "[I/O] CTC"},
        {.irq = IRQIO_APB,  .name = "APB", .desc = "[I/O] AP Bus"},
        {.irq = IRQIO_ADM,  .name = "ADM", .desc = "[I/O] EADM Subchannel"},
index f1b5111..b2837b1 100644 (file)
@@ -57,17 +57,6 @@ config SMSGIUCV_EVENT
 
          To compile as a module, choose M. The module name is "smsgiucv_app".
 
-config CLAW
-       def_tristate m
-       prompt "CLAW device support"
-       depends on CCW && NETDEVICES
-       help
-         This driver supports channel attached CLAW devices.
-         CLAW is Common Link Access for Workstation.  Common devices
-          that use CLAW are RS/6000s, Cisco Routers (CIP) and 3172 devices.
-         To compile as a module, choose M. The module name is claw.
-         To compile into the kernel, choose Y.
-
 config QETH
        def_tristate y
        prompt "Gigabit Ethernet device support"
@@ -106,6 +95,6 @@ config QETH_IPV6
 
 config CCWGROUP
        tristate
-       default (LCS || CTCM || QETH || CLAW)
+       default (LCS || CTCM || QETH)
 
 endmenu
index d28f05d..c351b07 100644 (file)
@@ -8,7 +8,6 @@ obj-$(CONFIG_NETIUCV) += netiucv.o fsm.o
 obj-$(CONFIG_SMSGIUCV) += smsgiucv.o
 obj-$(CONFIG_SMSGIUCV_EVENT) += smsgiucv_app.o
 obj-$(CONFIG_LCS) += lcs.o
-obj-$(CONFIG_CLAW) += claw.o
 qeth-y += qeth_core_sys.o qeth_core_main.o qeth_core_mpc.o
 obj-$(CONFIG_QETH) += qeth.o
 qeth_l2-y += qeth_l2_main.o qeth_l2_sys.o
diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
deleted file mode 100644 (file)
index d609ca0..0000000
+++ /dev/null
@@ -1,3377 +0,0 @@
-/*
- *    ESCON CLAW network driver
- *
- *  Linux for zSeries version
- *    Copyright IBM Corp. 2002, 2009
- *  Author(s) Original code written by:
- *             Kazuo Iimura <iimura@jp.ibm.com>
- *           Rewritten by
- *             Andy Richter <richtera@us.ibm.com>
- *             Marc Price <mwprice@us.ibm.com>
- *
- *    sysfs parms:
- *   group x.x.rrrr,x.x.wwww
- *   read_buffer nnnnnnn
- *   write_buffer nnnnnn
- *   host_name  aaaaaaaa
- *   adapter_name aaaaaaaa
- *   api_type    aaaaaaaa
- *
- *  eg.
- *   group  0.0.0200 0.0.0201
- *   read_buffer 25
- *   write_buffer 20
- *   host_name LINUX390
- *   adapter_name RS6K
- *   api_type     TCPIP
- *
- *  where
- *
- *   The device id is decided by the order entries
- *   are added to the group the first is claw0 the second claw1
- *   up to CLAW_MAX_DEV
- *
- *   rrrr     -        the first of 2 consecutive device addresses used for the
- *             CLAW protocol.
- *             The specified address is always used as the input (Read)
- *             channel and the next address is used as the output channel.
- *
- *   wwww     -        the second of 2 consecutive device addresses used for
- *             the CLAW protocol.
- *              The specified address is always used as the output
- *             channel and the previous address is used as the input channel.
- *
- *   read_buffer       -       specifies number of input buffers to allocate.
- *   write_buffer       -       specifies number of output buffers to allocate.
- *   host_name          -       host name
- *   adaptor_name       -       adaptor name
- *   api_type           -       API type TCPIP or API will be sent and expected
- *                             as ws_name
- *
- *   Note the following requirements:
- *   1)  host_name must match the configured adapter_name on the remote side
- *   2)  adaptor_name must match the configured host name on the remote side
- *
- *  Change History
- *    1.00  Initial release shipped
- *    1.10  Changes for Buffer allocation
- *    1.15  Changed for 2.6 Kernel  No longer compiles on 2.4 or lower
- *    1.25  Added Packing support
- *    1.5
- */
-
-#define KMSG_COMPONENT "claw"
-
-#include <asm/ccwdev.h>
-#include <asm/ccwgroup.h>
-#include <asm/debug.h>
-#include <asm/idals.h>
-#include <asm/io.h>
-#include <linux/bitops.h>
-#include <linux/ctype.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/if_arp.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/ip.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/proc_fs.h>
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/skbuff.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/tcp.h>
-#include <linux/timer.h>
-#include <linux/types.h>
-
-#include "claw.h"
-
-/*
-   CLAW uses the s390dbf file system  see claw_trace and claw_setup
-*/
-
-static char version[] __initdata = "CLAW driver";
-static char debug_buffer[255];
-/**
- * Debug Facility Stuff
- */
-static debug_info_t *claw_dbf_setup;
-static debug_info_t *claw_dbf_trace;
-
-/**
- *  CLAW Debug Facility functions
- */
-static void
-claw_unregister_debug_facility(void)
-{
-       debug_unregister(claw_dbf_setup);
-       debug_unregister(claw_dbf_trace);
-}
-
-static int
-claw_register_debug_facility(void)
-{
-       claw_dbf_setup = debug_register("claw_setup", 2, 1, 8);
-       claw_dbf_trace = debug_register("claw_trace", 2, 2, 8);
-       if (claw_dbf_setup == NULL || claw_dbf_trace == NULL) {
-               claw_unregister_debug_facility();
-               return -ENOMEM;
-       }
-       debug_register_view(claw_dbf_setup, &debug_hex_ascii_view);
-       debug_set_level(claw_dbf_setup, 2);
-       debug_register_view(claw_dbf_trace, &debug_hex_ascii_view);
-       debug_set_level(claw_dbf_trace, 2);
-       return 0;
-}
-
-static inline void
-claw_set_busy(struct net_device *dev)
-{
- ((struct claw_privbk *)dev->ml_priv)->tbusy = 1;
-}
-
-static inline void
-claw_clear_busy(struct net_device *dev)
-{
-       clear_bit(0, &(((struct claw_privbk *) dev->ml_priv)->tbusy));
-       netif_wake_queue(dev);
-}
-
-static inline int
-claw_check_busy(struct net_device *dev)
-{
-       return ((struct claw_privbk *) dev->ml_priv)->tbusy;
-}
-
-static inline void
-claw_setbit_busy(int nr,struct net_device *dev)
-{
-       netif_stop_queue(dev);
-       set_bit(nr, (void *)&(((struct claw_privbk *)dev->ml_priv)->tbusy));
-}
-
-static inline void
-claw_clearbit_busy(int nr,struct net_device *dev)
-{
-       clear_bit(nr, (void *)&(((struct claw_privbk *)dev->ml_priv)->tbusy));
-       netif_wake_queue(dev);
-}
-
-static inline int
-claw_test_and_setbit_busy(int nr,struct net_device *dev)
-{
-       netif_stop_queue(dev);
-       return test_and_set_bit(nr,
-               (void *)&(((struct claw_privbk *) dev->ml_priv)->tbusy));
-}
-
-
-/* Functions for the DEV methods */
-
-static int claw_probe(struct ccwgroup_device *cgdev);
-static void claw_remove_device(struct ccwgroup_device *cgdev);
-static void claw_purge_skb_queue(struct sk_buff_head *q);
-static int claw_new_device(struct ccwgroup_device *cgdev);
-static int claw_shutdown_device(struct ccwgroup_device *cgdev);
-static int claw_tx(struct sk_buff *skb, struct net_device *dev);
-static int claw_change_mtu( struct net_device *dev, int new_mtu);
-static int claw_open(struct net_device *dev);
-static void claw_irq_handler(struct ccw_device *cdev,
-       unsigned long intparm, struct irb *irb);
-static void claw_irq_tasklet ( unsigned long data );
-static int claw_release(struct net_device *dev);
-static void claw_write_retry ( struct chbk * p_ch );
-static void claw_write_next ( struct chbk * p_ch );
-static void claw_timer ( struct chbk * p_ch );
-
-/* Functions */
-static int add_claw_reads(struct net_device *dev,
-       struct ccwbk* p_first, struct ccwbk* p_last);
-static void ccw_check_return_code (struct ccw_device *cdev, int return_code);
-static void ccw_check_unit_check (struct chbk * p_ch, unsigned char sense );
-static int find_link(struct net_device *dev, char *host_name, char *ws_name );
-static int claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid);
-static int init_ccw_bk(struct net_device *dev);
-static void probe_error( struct ccwgroup_device *cgdev);
-static struct net_device_stats *claw_stats(struct net_device *dev);
-static int pages_to_order_of_mag(int num_of_pages);
-static struct sk_buff *claw_pack_skb(struct claw_privbk *privptr);
-/* sysfs Functions */
-static ssize_t claw_hname_show(struct device *dev,
-       struct device_attribute *attr, char *buf);
-static ssize_t claw_hname_write(struct device *dev,
-       struct device_attribute *attr,
-       const char *buf, size_t count);
-static ssize_t claw_adname_show(struct device *dev,
-       struct device_attribute *attr, char *buf);
-static ssize_t claw_adname_write(struct device *dev,
-       struct device_attribute *attr,
-       const char *buf, size_t count);
-static ssize_t claw_apname_show(struct device *dev,
-       struct device_attribute *attr, char *buf);
-static ssize_t claw_apname_write(struct device *dev,
-       struct device_attribute *attr,
-       const char *buf, size_t count);
-static ssize_t claw_wbuff_show(struct device *dev,
-       struct device_attribute *attr, char *buf);
-static ssize_t claw_wbuff_write(struct device *dev,
-       struct device_attribute *attr,
-       const char *buf, size_t count);
-static ssize_t claw_rbuff_show(struct device *dev,
-       struct device_attribute *attr, char *buf);
-static ssize_t claw_rbuff_write(struct device *dev,
-       struct device_attribute *attr,
-       const char *buf, size_t count);
-
-/*   Functions for System Validate  */
-static int claw_process_control( struct net_device *dev, struct ccwbk * p_ccw);
-static int claw_send_control(struct net_device *dev, __u8 type, __u8 link,
-       __u8 correlator, __u8 rc , char *local_name, char *remote_name);
-static int claw_snd_conn_req(struct net_device *dev, __u8 link);
-static int claw_snd_disc(struct net_device *dev, struct clawctl * p_ctl);
-static int claw_snd_sys_validate_rsp(struct net_device *dev,
-        struct clawctl * p_ctl, __u32 return_code);
-static int claw_strt_conn_req(struct net_device *dev );
-static void claw_strt_read(struct net_device *dev, int lock);
-static void claw_strt_out_IO(struct net_device *dev);
-static void claw_free_wrt_buf(struct net_device *dev);
-
-/* Functions for unpack reads   */
-static void unpack_read(struct net_device *dev);
-
-static int claw_pm_prepare(struct ccwgroup_device *gdev)
-{
-       return -EPERM;
-}
-
-/* the root device for claw group devices */
-static struct device *claw_root_dev;
-
-/* ccwgroup table  */
-
-static struct ccwgroup_driver claw_group_driver = {
-       .driver = {
-               .owner  = THIS_MODULE,
-               .name   = "claw",
-       },
-       .setup       = claw_probe,
-       .remove      = claw_remove_device,
-       .set_online  = claw_new_device,
-       .set_offline = claw_shutdown_device,
-       .prepare     = claw_pm_prepare,
-};
-
-static struct ccw_device_id claw_ids[] = {
-       {CCW_DEVICE(0x3088, 0x61), .driver_info = claw_channel_type_claw},
-       {},
-};
-MODULE_DEVICE_TABLE(ccw, claw_ids);
-
-static struct ccw_driver claw_ccw_driver = {
-       .driver = {
-               .owner  = THIS_MODULE,
-               .name   = "claw",
-       },
-       .ids    = claw_ids,
-       .probe  = ccwgroup_probe_ccwdev,
-       .remove = ccwgroup_remove_ccwdev,
-       .int_class = IRQIO_CLW,
-};
-
-static ssize_t claw_driver_group_store(struct device_driver *ddrv,
-                                      const char *buf, size_t count)
-{
-       int err;
-       err = ccwgroup_create_dev(claw_root_dev, &claw_group_driver, 2, buf);
-       return err ? err : count;
-}
-static DRIVER_ATTR(group, 0200, NULL, claw_driver_group_store);
-
-static struct attribute *claw_drv_attrs[] = {
-       &driver_attr_group.attr,
-       NULL,
-};
-static struct attribute_group claw_drv_attr_group = {
-       .attrs = claw_drv_attrs,
-};
-static const struct attribute_group *claw_drv_attr_groups[] = {
-       &claw_drv_attr_group,
-       NULL,
-};
-
-/*
-*       Key functions
-*/
-
-/*-------------------------------------------------------------------*
- *   claw_tx                                                         *
- *-------------------------------------------------------------------*/
-
-static int
-claw_tx(struct sk_buff *skb, struct net_device *dev)
-{
-        int             rc;
-       struct claw_privbk *privptr = dev->ml_priv;
-       unsigned long saveflags;
-        struct chbk *p_ch;
-
-       CLAW_DBF_TEXT(4, trace, "claw_tx");
-       p_ch = &privptr->channel[WRITE_CHANNEL];
-        spin_lock_irqsave(get_ccwdev_lock(p_ch->cdev), saveflags);
-        rc=claw_hw_tx( skb, dev, 1 );
-        spin_unlock_irqrestore(get_ccwdev_lock(p_ch->cdev), saveflags);
-       CLAW_DBF_TEXT_(4, trace, "clawtx%d", rc);
-       if (rc)
-               rc = NETDEV_TX_BUSY;
-       else
-               rc = NETDEV_TX_OK;
-        return rc;
-}   /*  end of claw_tx */
-
-/*------------------------------------------------------------------*
- *  pack the collect queue into an skb and return it                *
- *   If not packing just return the top skb from the queue          *
- *------------------------------------------------------------------*/
-
-static struct sk_buff *
-claw_pack_skb(struct claw_privbk *privptr)
-{
-       struct sk_buff *new_skb,*held_skb;
-       struct chbk *p_ch = &privptr->channel[WRITE_CHANNEL];
-       struct claw_env  *p_env = privptr->p_env;
-       int     pkt_cnt,pk_ind,so_far;
-
-       new_skb = NULL;         /* assume no dice */
-       pkt_cnt = 0;
-       CLAW_DBF_TEXT(4, trace, "PackSKBe");
-       if (!skb_queue_empty(&p_ch->collect_queue)) {
-       /* some data */
-               held_skb = skb_dequeue(&p_ch->collect_queue);
-               if (held_skb)
-                       dev_kfree_skb_any(held_skb);
-               else
-                       return NULL;
-               if (p_env->packing != DO_PACKED)
-                       return held_skb;
-               /* get a new SKB we will pack at least one */
-               new_skb = dev_alloc_skb(p_env->write_size);
-               if (new_skb == NULL) {
-                       atomic_inc(&held_skb->users);
-                       skb_queue_head(&p_ch->collect_queue,held_skb);
-                       return NULL;
-               }
-               /* we have packed packet and a place to put it  */
-               pk_ind = 1;
-               so_far = 0;
-               new_skb->cb[1] = 'P'; /* every skb on queue has pack header */
-               while ((pk_ind) && (held_skb != NULL)) {
-                       if (held_skb->len+so_far <= p_env->write_size-8) {
-                               memcpy(skb_put(new_skb,held_skb->len),
-                                       held_skb->data,held_skb->len);
-                               privptr->stats.tx_packets++;
-                               so_far += held_skb->len;
-                               pkt_cnt++;
-                               dev_kfree_skb_any(held_skb);
-                               held_skb = skb_dequeue(&p_ch->collect_queue);
-                               if (held_skb)
-                                       atomic_dec(&held_skb->users);
-                       } else {
-                               pk_ind = 0;
-                               atomic_inc(&held_skb->users);
-                               skb_queue_head(&p_ch->collect_queue,held_skb);
-                       }
-               }
-       }
-       CLAW_DBF_TEXT(4, trace, "PackSKBx");
-       return new_skb;
-}
-
-/*-------------------------------------------------------------------*
- *   claw_change_mtu                                                 *
- *                                                                   *
- *-------------------------------------------------------------------*/
-
-static int
-claw_change_mtu(struct net_device *dev, int new_mtu)
-{
-       struct claw_privbk *privptr = dev->ml_priv;
-       int buff_size;
-       CLAW_DBF_TEXT(4, trace, "setmtu");
-       buff_size = privptr->p_env->write_size;
-        if ((new_mtu < 60) || (new_mtu > buff_size)) {
-                return -EINVAL;
-        }
-        dev->mtu = new_mtu;
-        return 0;
-}  /*   end of claw_change_mtu */
-
-
-/*-------------------------------------------------------------------*
- *   claw_open                                                       *
- *                                                                   *
- *-------------------------------------------------------------------*/
-static int
-claw_open(struct net_device *dev)
-{
-
-        int     rc;
-        int     i;
-        unsigned long       saveflags=0;
-        unsigned long       parm;
-        struct claw_privbk  *privptr;
-       DECLARE_WAITQUEUE(wait, current);
-        struct timer_list  timer;
-        struct ccwbk *p_buf;
-
-       CLAW_DBF_TEXT(4, trace, "open");
-       privptr = (struct claw_privbk *)dev->ml_priv;
-        /*   allocate and initialize CCW blocks */
-       if (privptr->buffs_alloc == 0) {
-               rc=init_ccw_bk(dev);
-               if (rc) {
-                       CLAW_DBF_TEXT(2, trace, "openmem");
-                       return -ENOMEM;
-               }
-       }
-        privptr->system_validate_comp=0;
-        privptr->release_pend=0;
-       if(strncmp(privptr->p_env->api_type,WS_APPL_NAME_PACKED,6) == 0) {
-               privptr->p_env->read_size=DEF_PACK_BUFSIZE;
-               privptr->p_env->write_size=DEF_PACK_BUFSIZE;
-               privptr->p_env->packing=PACKING_ASK;
-       } else {
-               privptr->p_env->packing=0;
-               privptr->p_env->read_size=CLAW_FRAME_SIZE;
-               privptr->p_env->write_size=CLAW_FRAME_SIZE;
-       }
-        claw_set_busy(dev);
-       tasklet_init(&privptr->channel[READ_CHANNEL].tasklet, claw_irq_tasklet,
-               (unsigned long) &privptr->channel[READ_CHANNEL]);
-        for ( i = 0; i < 2;  i++) {
-               CLAW_DBF_TEXT_(2, trace, "opn_ch%d", i);
-                init_waitqueue_head(&privptr->channel[i].wait);
-               /* skb_queue_head_init(&p_ch->io_queue); */
-               if (i == WRITE_CHANNEL)
-                       skb_queue_head_init(
-                               &privptr->channel[WRITE_CHANNEL].collect_queue);
-                privptr->channel[i].flag_a = 0;
-                privptr->channel[i].IO_active = 0;
-                privptr->channel[i].flag  &= ~CLAW_TIMER;
-                init_timer(&timer);
-                timer.function = (void *)claw_timer;
-                timer.data = (unsigned long)(&privptr->channel[i]);
-                timer.expires = jiffies + 15*HZ;
-                add_timer(&timer);
-                spin_lock_irqsave(get_ccwdev_lock(
-                       privptr->channel[i].cdev), saveflags);
-                parm = (unsigned long) &privptr->channel[i];
-                privptr->channel[i].claw_state = CLAW_START_HALT_IO;
-               rc = 0;
-               add_wait_queue(&privptr->channel[i].wait, &wait);
-                rc = ccw_device_halt(
-                       (struct ccw_device *)privptr->channel[i].cdev,parm);
-                set_current_state(TASK_INTERRUPTIBLE);
-                spin_unlock_irqrestore(
-                       get_ccwdev_lock(privptr->channel[i].cdev), saveflags);
-                schedule();
-                remove_wait_queue(&privptr->channel[i].wait, &wait);
-                if(rc != 0)
-                        ccw_check_return_code(privptr->channel[i].cdev, rc);
-                if((privptr->channel[i].flag & CLAW_TIMER) == 0x00)
-                        del_timer(&timer);
-        }
-       if ((((privptr->channel[READ_CHANNEL].last_dstat |
-               privptr->channel[WRITE_CHANNEL].last_dstat) &
-           ~(DEV_STAT_CHN_END | DEV_STAT_DEV_END)) != 0x00) ||
-          (((privptr->channel[READ_CHANNEL].flag |
-               privptr->channel[WRITE_CHANNEL].flag) & CLAW_TIMER) != 0x00)) {
-               dev_info(&privptr->channel[READ_CHANNEL].cdev->dev,
-                       "%s: remote side is not ready\n", dev->name);
-               CLAW_DBF_TEXT(2, trace, "notrdy");
-
-                for ( i = 0; i < 2;  i++) {
-                        spin_lock_irqsave(
-                               get_ccwdev_lock(privptr->channel[i].cdev),
-                               saveflags);
-                        parm = (unsigned long) &privptr->channel[i];
-                        privptr->channel[i].claw_state = CLAW_STOP;
-                        rc = ccw_device_halt(
-                               (struct ccw_device *)&privptr->channel[i].cdev,
-                               parm);
-                        spin_unlock_irqrestore(
-                               get_ccwdev_lock(privptr->channel[i].cdev),
-                               saveflags);
-                        if (rc != 0) {
-                                ccw_check_return_code(
-                                       privptr->channel[i].cdev, rc);
-                        }
-                }
-                free_pages((unsigned long)privptr->p_buff_ccw,
-                       (int)pages_to_order_of_mag(privptr->p_buff_ccw_num));
-                if (privptr->p_env->read_size < PAGE_SIZE) {
-                        free_pages((unsigned long)privptr->p_buff_read,
-                              (int)pages_to_order_of_mag(
-                                       privptr->p_buff_read_num));
-                }
-                else {
-                        p_buf=privptr->p_read_active_first;
-                        while (p_buf!=NULL) {
-                                free_pages((unsigned long)p_buf->p_buffer,
-                                     (int)pages_to_order_of_mag(
-                                       privptr->p_buff_pages_perread ));
-                                p_buf=p_buf->next;
-                        }
-                }
-                if (privptr->p_env->write_size < PAGE_SIZE ) {
-                        free_pages((unsigned long)privptr->p_buff_write,
-                            (int)pages_to_order_of_mag(
-                               privptr->p_buff_write_num));
-                }
-                else {
-                        p_buf=privptr->p_write_active_first;
-                        while (p_buf!=NULL) {
-                                free_pages((unsigned long)p_buf->p_buffer,
-                                    (int)pages_to_order_of_mag(
-                                       privptr->p_buff_pages_perwrite ));
-                                p_buf=p_buf->next;
-                        }
-                }
-               privptr->buffs_alloc = 0;
-               privptr->channel[READ_CHANNEL].flag = 0x00;
-               privptr->channel[WRITE_CHANNEL].flag = 0x00;
-                privptr->p_buff_ccw=NULL;
-                privptr->p_buff_read=NULL;
-                privptr->p_buff_write=NULL;
-                claw_clear_busy(dev);
-               CLAW_DBF_TEXT(2, trace, "open EIO");
-                return -EIO;
-        }
-
-        /*   Send SystemValidate command */
-
-        claw_clear_busy(dev);
-       CLAW_DBF_TEXT(4, trace, "openok");
-        return 0;
-}    /*     end of claw_open    */
-
-/*-------------------------------------------------------------------*
-*                                                                    *
-*       claw_irq_handler                                             *
-*                                                                    *
-*--------------------------------------------------------------------*/
-static void
-claw_irq_handler(struct ccw_device *cdev,
-       unsigned long intparm, struct irb *irb)
-{
-        struct chbk *p_ch = NULL;
-        struct claw_privbk *privptr = NULL;
-        struct net_device *dev = NULL;
-        struct claw_env  *p_env;
-        struct chbk *p_ch_r=NULL;
-
-       CLAW_DBF_TEXT(4, trace, "clawirq");
-        /* Bypass all 'unsolicited interrupts' */
-       privptr = dev_get_drvdata(&cdev->dev);
-       if (!privptr) {
-               dev_warn(&cdev->dev, "An uninitialized CLAW device received an"
-                       " IRQ, c-%02x d-%02x\n",
-                       irb->scsw.cmd.cstat, irb->scsw.cmd.dstat);
-               CLAW_DBF_TEXT(2, trace, "badirq");
-                return;
-        }
-
-       /* Try to extract channel from driver data. */
-       if (privptr->channel[READ_CHANNEL].cdev == cdev)
-               p_ch = &privptr->channel[READ_CHANNEL];
-       else if (privptr->channel[WRITE_CHANNEL].cdev == cdev)
-               p_ch = &privptr->channel[WRITE_CHANNEL];
-       else {
-               dev_warn(&cdev->dev, "The device is not a CLAW device\n");
-               CLAW_DBF_TEXT(2, trace, "badchan");
-               return;
-       }
-       CLAW_DBF_TEXT_(4, trace, "IRQCH=%d", p_ch->flag);
-
-       dev = (struct net_device *) (p_ch->ndev);
-        p_env=privptr->p_env;
-
-       /* Copy interruption response block. */
-       memcpy(p_ch->irb, irb, sizeof(struct irb));
-
-       /* Check for good subchannel return code, otherwise info message */
-       if (irb->scsw.cmd.cstat && !(irb->scsw.cmd.cstat & SCHN_STAT_PCI)) {
-               dev_info(&cdev->dev,
-                       "%s: subchannel check for device: %04x -"
-                       " Sch Stat %02x  Dev Stat %02x CPA - %04x\n",
-                        dev->name, p_ch->devno,
-                       irb->scsw.cmd.cstat, irb->scsw.cmd.dstat,
-                       irb->scsw.cmd.cpa);
-               CLAW_DBF_TEXT(2, trace, "chanchk");
-                /* return; */
-        }
-
-        /* Check the reason-code of a unit check */
-       if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK)
-                ccw_check_unit_check(p_ch, irb->ecw[0]);
-
-        /* State machine to bring the connection up, down and to restart */
-       p_ch->last_dstat = irb->scsw.cmd.dstat;
-
-        switch (p_ch->claw_state) {
-       case CLAW_STOP:/* HALT_IO by claw_release (halt sequence) */
-               if (!((p_ch->irb->scsw.cmd.stctl & SCSW_STCTL_SEC_STATUS) ||
-               (p_ch->irb->scsw.cmd.stctl == SCSW_STCTL_STATUS_PEND) ||
-               (p_ch->irb->scsw.cmd.stctl ==
-               (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND))))
-                       return;
-               wake_up(&p_ch->wait);   /* wake up claw_release */
-               CLAW_DBF_TEXT(4, trace, "stop");
-               return;
-       case CLAW_START_HALT_IO: /* HALT_IO issued by claw_open  */
-               if (!((p_ch->irb->scsw.cmd.stctl & SCSW_STCTL_SEC_STATUS) ||
-               (p_ch->irb->scsw.cmd.stctl == SCSW_STCTL_STATUS_PEND) ||
-               (p_ch->irb->scsw.cmd.stctl ==
-               (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)))) {
-                       CLAW_DBF_TEXT(4, trace, "haltio");
-                       return;
-               }
-               if (p_ch->flag == CLAW_READ) {
-                       p_ch->claw_state = CLAW_START_READ;
-                       wake_up(&p_ch->wait); /* wake claw_open (READ)*/
-               } else if (p_ch->flag == CLAW_WRITE) {
-                       p_ch->claw_state = CLAW_START_WRITE;
-                       /*      send SYSTEM_VALIDATE                    */
-                       claw_strt_read(dev, LOCK_NO);
-                       claw_send_control(dev,
-                               SYSTEM_VALIDATE_REQUEST,
-                               0, 0, 0,
-                               p_env->host_name,
-                               p_env->adapter_name);
-               } else {
-                       dev_warn(&cdev->dev, "The CLAW device received"
-                               " an unexpected IRQ, "
-                               "c-%02x d-%02x\n",
-                               irb->scsw.cmd.cstat,
-                               irb->scsw.cmd.dstat);
-                       return;
-                       }
-               CLAW_DBF_TEXT(4, trace, "haltio");
-               return;
-       case CLAW_START_READ:
-               CLAW_DBF_TEXT(4, trace, "ReadIRQ");
-               if (p_ch->irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
-                       clear_bit(0, (void *)&p_ch->IO_active);
-                       if ((p_ch->irb->ecw[0] & 0x41) == 0x41 ||
-                           (p_ch->irb->ecw[0] & 0x40) == 0x40 ||
-                           (p_ch->irb->ecw[0])        == 0) {
-                               privptr->stats.rx_errors++;
-                               dev_info(&cdev->dev,
-                                       "%s: Restart is required after remote "
-                                       "side recovers \n",
-                                       dev->name);
-                       }
-                       CLAW_DBF_TEXT(4, trace, "notrdy");
-                       return;
-               }
-               if ((p_ch->irb->scsw.cmd.cstat & SCHN_STAT_PCI) &&
-                       (p_ch->irb->scsw.cmd.dstat == 0)) {
-                       if (test_and_set_bit(CLAW_BH_ACTIVE,
-                               (void *)&p_ch->flag_a) == 0)
-                               tasklet_schedule(&p_ch->tasklet);
-                       else
-                               CLAW_DBF_TEXT(4, trace, "PCINoBH");
-                       CLAW_DBF_TEXT(4, trace, "PCI_read");
-                       return;
-               }
-               if (!((p_ch->irb->scsw.cmd.stctl & SCSW_STCTL_SEC_STATUS) ||
-                (p_ch->irb->scsw.cmd.stctl == SCSW_STCTL_STATUS_PEND) ||
-                (p_ch->irb->scsw.cmd.stctl ==
-                (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)))) {
-                       CLAW_DBF_TEXT(4, trace, "SPend_rd");
-                       return;
-               }
-               clear_bit(0, (void *)&p_ch->IO_active);
-               claw_clearbit_busy(TB_RETRY, dev);
-               if (test_and_set_bit(CLAW_BH_ACTIVE,
-                       (void *)&p_ch->flag_a) == 0)
-                       tasklet_schedule(&p_ch->tasklet);
-               else
-                       CLAW_DBF_TEXT(4, trace, "RdBHAct");
-               CLAW_DBF_TEXT(4, trace, "RdIRQXit");
-               return;
-       case CLAW_START_WRITE:
-               if (p_ch->irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
-                       dev_info(&cdev->dev,
-                               "%s: Unit Check Occurred in "
-                               "write channel\n", dev->name);
-                       clear_bit(0, (void *)&p_ch->IO_active);
-                       if (p_ch->irb->ecw[0] & 0x80) {
-                               dev_info(&cdev->dev,
-                                       "%s: Resetting Event "
-                                       "occurred:\n", dev->name);
-                               init_timer(&p_ch->timer);
-                               p_ch->timer.function =
-                                       (void *)claw_write_retry;
-                               p_ch->timer.data = (unsigned long)p_ch;
-                               p_ch->timer.expires = jiffies + 10*HZ;
-                               add_timer(&p_ch->timer);
-                               dev_info(&cdev->dev,
-                                       "%s: write connection "
-                                       "restarting\n", dev->name);
-                       }
-                       CLAW_DBF_TEXT(4, trace, "rstrtwrt");
-                       return;
-               }
-               if (p_ch->irb->scsw.cmd.dstat & DEV_STAT_UNIT_EXCEP) {
-                       clear_bit(0, (void *)&p_ch->IO_active);
-                       dev_info(&cdev->dev,
-                               "%s: Unit Exception "
-                               "occurred in write channel\n",
-                               dev->name);
-               }
-               if (!((p_ch->irb->scsw.cmd.stctl & SCSW_STCTL_SEC_STATUS) ||
-               (p_ch->irb->scsw.cmd.stctl == SCSW_STCTL_STATUS_PEND) ||
-               (p_ch->irb->scsw.cmd.stctl ==
-               (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)))) {
-                       CLAW_DBF_TEXT(4, trace, "writeUE");
-                       return;
-               }
-               clear_bit(0, (void *)&p_ch->IO_active);
-               if (claw_test_and_setbit_busy(TB_TX, dev) == 0) {
-                       claw_write_next(p_ch);
-                       claw_clearbit_busy(TB_TX, dev);
-                       claw_clear_busy(dev);
-               }
-               p_ch_r = (struct chbk *)&privptr->channel[READ_CHANNEL];
-               if (test_and_set_bit(CLAW_BH_ACTIVE,
-                       (void *)&p_ch_r->flag_a) == 0)
-                       tasklet_schedule(&p_ch_r->tasklet);
-               CLAW_DBF_TEXT(4, trace, "StWtExit");
-               return;
-       default:
-               dev_warn(&cdev->dev,
-                       "The CLAW device for %s received an unexpected IRQ\n",
-                        dev->name);
-               CLAW_DBF_TEXT(2, trace, "badIRQ");
-               return;
-        }
-
-}       /*   end of claw_irq_handler    */
-
-
-/*-------------------------------------------------------------------*
-*       claw_irq_tasklet                                             *
-*                                                                    *
-*--------------------------------------------------------------------*/
-static void
-claw_irq_tasklet ( unsigned long data )
-{
-       struct chbk * p_ch;
-        struct net_device  *dev;
-
-       p_ch = (struct chbk *) data;
-        dev = (struct net_device *)p_ch->ndev;
-       CLAW_DBF_TEXT(4, trace, "IRQtask");
-        unpack_read(dev);
-        clear_bit(CLAW_BH_ACTIVE, (void *)&p_ch->flag_a);
-       CLAW_DBF_TEXT(4, trace, "TskletXt");
-        return;
-}       /*    end of claw_irq_bh    */
-
-/*-------------------------------------------------------------------*
-*       claw_release                                                 *
-*                                                                    *
-*--------------------------------------------------------------------*/
-static int
-claw_release(struct net_device *dev)
-{
-        int                rc;
-        int                i;
-        unsigned long      saveflags;
-        unsigned long      parm;
-        struct claw_privbk *privptr;
-        DECLARE_WAITQUEUE(wait, current);
-        struct ccwbk*             p_this_ccw;
-        struct ccwbk*             p_buf;
-
-       if (!dev)
-                return 0;
-       privptr = (struct claw_privbk *)dev->ml_priv;
-        if (!privptr)
-                return 0;
-       CLAW_DBF_TEXT(4, trace, "release");
-        privptr->release_pend=1;
-        claw_setbit_busy(TB_STOP,dev);
-        for ( i = 1; i >=0 ;  i--) {
-                spin_lock_irqsave(
-                       get_ccwdev_lock(privptr->channel[i].cdev), saveflags);
-            /*   del_timer(&privptr->channel[READ_CHANNEL].timer);  */
-               privptr->channel[i].claw_state = CLAW_STOP;
-                privptr->channel[i].IO_active = 0;
-                parm = (unsigned long) &privptr->channel[i];
-               if (i == WRITE_CHANNEL)
-                       claw_purge_skb_queue(
-                               &privptr->channel[WRITE_CHANNEL].collect_queue);
-                rc = ccw_device_halt (privptr->channel[i].cdev, parm);
-               if (privptr->system_validate_comp==0x00)  /* never opened? */
-                   init_waitqueue_head(&privptr->channel[i].wait);
-                add_wait_queue(&privptr->channel[i].wait, &wait);
-                set_current_state(TASK_INTERRUPTIBLE);
-               spin_unlock_irqrestore(
-                       get_ccwdev_lock(privptr->channel[i].cdev), saveflags);
-               schedule();
-               remove_wait_queue(&privptr->channel[i].wait, &wait);
-               if (rc != 0) {
-                        ccw_check_return_code(privptr->channel[i].cdev, rc);
-                }
-        }
-       if (privptr->pk_skb != NULL) {
-               dev_kfree_skb_any(privptr->pk_skb);
-               privptr->pk_skb = NULL;
-       }
-       if(privptr->buffs_alloc != 1) {
-               CLAW_DBF_TEXT(4, trace, "none2fre");
-               return 0;
-       }
-       CLAW_DBF_TEXT(4, trace, "freebufs");
-       if (privptr->p_buff_ccw != NULL) {
-               free_pages((unsigned long)privptr->p_buff_ccw,
-                       (int)pages_to_order_of_mag(privptr->p_buff_ccw_num));
-       }
-       CLAW_DBF_TEXT(4, trace, "freeread");
-        if (privptr->p_env->read_size < PAGE_SIZE) {
-           if (privptr->p_buff_read != NULL) {
-                free_pages((unsigned long)privptr->p_buff_read,
-                     (int)pages_to_order_of_mag(privptr->p_buff_read_num));
-               }
-        }
-        else {
-                p_buf=privptr->p_read_active_first;
-                while (p_buf!=NULL) {
-                        free_pages((unsigned long)p_buf->p_buffer,
-                            (int)pages_to_order_of_mag(
-                               privptr->p_buff_pages_perread ));
-                        p_buf=p_buf->next;
-                }
-        }
-        CLAW_DBF_TEXT(4, trace, "freewrit");
-        if (privptr->p_env->write_size < PAGE_SIZE ) {
-                free_pages((unsigned long)privptr->p_buff_write,
-                     (int)pages_to_order_of_mag(privptr->p_buff_write_num));
-        }
-        else {
-                p_buf=privptr->p_write_active_first;
-                while (p_buf!=NULL) {
-                        free_pages((unsigned long)p_buf->p_buffer,
-                             (int)pages_to_order_of_mag(
-                             privptr->p_buff_pages_perwrite ));
-                        p_buf=p_buf->next;
-                }
-        }
-        CLAW_DBF_TEXT(4, trace, "clearptr");
-       privptr->buffs_alloc = 0;
-        privptr->p_buff_ccw=NULL;
-        privptr->p_buff_read=NULL;
-        privptr->p_buff_write=NULL;
-        privptr->system_validate_comp=0;
-        privptr->release_pend=0;
-        /*      Remove any writes that were pending and reset all reads   */
-        p_this_ccw=privptr->p_read_active_first;
-        while (p_this_ccw!=NULL) {
-                p_this_ccw->header.length=0xffff;
-                p_this_ccw->header.opcode=0xff;
-                p_this_ccw->header.flag=0x00;
-                p_this_ccw=p_this_ccw->next;
-        }
-
-        while (privptr->p_write_active_first!=NULL) {
-                p_this_ccw=privptr->p_write_active_first;
-                p_this_ccw->header.flag=CLAW_PENDING;
-                privptr->p_write_active_first=p_this_ccw->next;
-                p_this_ccw->next=privptr->p_write_free_chain;
-                privptr->p_write_free_chain=p_this_ccw;
-                ++privptr->write_free_count;
-        }
-        privptr->p_write_active_last=NULL;
-        privptr->mtc_logical_link = -1;
-        privptr->mtc_skipping = 1;
-        privptr->mtc_offset=0;
-
-       if (((privptr->channel[READ_CHANNEL].last_dstat |
-               privptr->channel[WRITE_CHANNEL].last_dstat) &
-               ~(DEV_STAT_CHN_END | DEV_STAT_DEV_END)) != 0x00) {
-               dev_warn(&privptr->channel[READ_CHANNEL].cdev->dev,
-                       "Deactivating %s completed with incorrect"
-                       " subchannel status "
-                       "(read %02x, write %02x)\n",
-                dev->name,
-               privptr->channel[READ_CHANNEL].last_dstat,
-               privptr->channel[WRITE_CHANNEL].last_dstat);
-                CLAW_DBF_TEXT(2, trace, "badclose");
-        }
-       CLAW_DBF_TEXT(4, trace, "rlsexit");
-        return 0;
-}      /* end of claw_release     */
-
-/*-------------------------------------------------------------------*
-*       claw_write_retry                                             *
-*                                                                    *
-*--------------------------------------------------------------------*/
-
-static void
-claw_write_retry ( struct chbk *p_ch )
-{
-
-        struct net_device  *dev=p_ch->ndev;
-
-       CLAW_DBF_TEXT(4, trace, "w_retry");
-        if (p_ch->claw_state == CLAW_STOP) {
-               return;
-        }
-       claw_strt_out_IO( dev );
-       CLAW_DBF_TEXT(4, trace, "rtry_xit");
-        return;
-}      /* end of claw_write_retry      */
-
-
-/*-------------------------------------------------------------------*
-*       claw_write_next                                              *
-*                                                                    *
-*--------------------------------------------------------------------*/
-
-static void
-claw_write_next ( struct chbk * p_ch )
-{
-
-        struct net_device  *dev;
-        struct claw_privbk *privptr=NULL;
-       struct sk_buff *pk_skb;
-
-       CLAW_DBF_TEXT(4, trace, "claw_wrt");
-        if (p_ch->claw_state == CLAW_STOP)
-                return;
-        dev = (struct net_device *) p_ch->ndev;
-       privptr = (struct claw_privbk *) dev->ml_priv;
-        claw_free_wrt_buf( dev );
-       if ((privptr->write_free_count > 0) &&
-           !skb_queue_empty(&p_ch->collect_queue)) {
-               pk_skb = claw_pack_skb(privptr);
-               while (pk_skb != NULL) {
-                       claw_hw_tx(pk_skb, dev, 1);
-                       if (privptr->write_free_count > 0) {
-                               pk_skb = claw_pack_skb(privptr);
-                       } else
-                               pk_skb = NULL;
-               }
-       }
-        if (privptr->p_write_active_first!=NULL) {
-                claw_strt_out_IO(dev);
-        }
-        return;
-}      /* end of claw_write_next      */
-
-/*-------------------------------------------------------------------*
-*                                                                    *
-*       claw_timer                                                   *
-*--------------------------------------------------------------------*/
-
-static void
-claw_timer ( struct chbk * p_ch )
-{
-       CLAW_DBF_TEXT(4, trace, "timer");
-        p_ch->flag |= CLAW_TIMER;
-        wake_up(&p_ch->wait);
-        return;
-}      /* end of claw_timer  */
-
-/*
-*
-*       functions
-*/
-
-
-/*-------------------------------------------------------------------*
-*                                                                    *
-*     pages_to_order_of_mag                                          *
-*                                                                    *
-*    takes a number of pages from 1 to 512 and returns the           *
-*    log(num_pages)/log(2) get_free_pages() needs a base 2 order     *
-*    of magnitude get_free_pages() has an upper order of 9           *
-*--------------------------------------------------------------------*/
-
-static int
-pages_to_order_of_mag(int num_of_pages)
-{
-       int     order_of_mag=1;         /* assume 2 pages */
-       int     nump;
-
-       CLAW_DBF_TEXT_(5, trace, "pages%d", num_of_pages);
-       if (num_of_pages == 1)   {return 0; }  /* magnitude of 0 = 1 page */
-       /* 512 pages = 2Meg on 4k page systems */
-       if (num_of_pages >= 512) {return 9; }
-       /* we have two or more pages order is at least 1 */
-       for (nump=2 ;nump <= 512;nump*=2) {
-         if (num_of_pages <= nump)
-                 break;
-         order_of_mag +=1;
-       }
-       if (order_of_mag > 9) { order_of_mag = 9; }  /* I know it's paranoid */
-       CLAW_DBF_TEXT_(5, trace, "mag%d", order_of_mag);
-       return order_of_mag;
-}
-
-/*-------------------------------------------------------------------*
-*                                                                    *
-*     add_claw_reads                                                 *
-*                                                                    *
-*--------------------------------------------------------------------*/
-static int
-add_claw_reads(struct net_device *dev, struct ccwbk* p_first,
-       struct ccwbk* p_last)
-{
-        struct claw_privbk *privptr;
-        struct ccw1  temp_ccw;
-        struct endccw * p_end;
-       CLAW_DBF_TEXT(4, trace, "addreads");
-       privptr = dev->ml_priv;
-        p_end = privptr->p_end_ccw;
-
-        /* first CCW and last CCW contains a new set of read channel programs
-        *       to apend the running channel programs
-        */
-        if ( p_first==NULL) {
-               CLAW_DBF_TEXT(4, trace, "addexit");
-                return 0;
-        }
-
-        /* set up ending CCW sequence for this segment */
-        if (p_end->read1) {
-                p_end->read1=0x00;    /*  second ending CCW is now active */
-                /*      reset ending CCWs and setup TIC CCWs              */
-                p_end->read2_nop2.cmd_code = CCW_CLAW_CMD_READFF;
-                p_end->read2_nop2.flags  = CCW_FLAG_SLI | CCW_FLAG_SKIP;
-                p_last->r_TIC_1.cda =(__u32)__pa(&p_end->read2_nop1);
-                p_last->r_TIC_2.cda =(__u32)__pa(&p_end->read2_nop1);
-                p_end->read2_nop2.cda=0;
-                p_end->read2_nop2.count=1;
-        }
-        else {
-                p_end->read1=0x01;  /* first ending CCW is now active */
-                /*      reset ending CCWs and setup TIC CCWs          */
-                p_end->read1_nop2.cmd_code = CCW_CLAW_CMD_READFF;
-                p_end->read1_nop2.flags  = CCW_FLAG_SLI | CCW_FLAG_SKIP;
-                p_last->r_TIC_1.cda = (__u32)__pa(&p_end->read1_nop1);
-                p_last->r_TIC_2.cda = (__u32)__pa(&p_end->read1_nop1);
-                p_end->read1_nop2.cda=0;
-                p_end->read1_nop2.count=1;
-        }
-
-        if ( privptr-> p_read_active_first ==NULL ) {
-               privptr->p_read_active_first = p_first;  /*  set new first */
-               privptr->p_read_active_last  = p_last;   /*  set new last  */
-        }
-        else {
-
-                /* set up TIC ccw  */
-                temp_ccw.cda= (__u32)__pa(&p_first->read);
-                temp_ccw.count=0;
-                temp_ccw.flags=0;
-                temp_ccw.cmd_code = CCW_CLAW_CMD_TIC;
-
-
-                if (p_end->read1) {
-
-               /* first set of CCW's is chained to the new read              */
-               /* chain, so the second set is chained to the active chain.   */
-               /* Therefore modify the second set to point to the new        */
-               /* read chain set up TIC CCWs                                 */
-               /* make sure we update the CCW so channel doesn't fetch it    */
-               /* when it's only half done                                   */
-                        memcpy( &p_end->read2_nop2, &temp_ccw ,
-                               sizeof(struct ccw1));
-                        privptr->p_read_active_last->r_TIC_1.cda=
-                               (__u32)__pa(&p_first->read);
-                        privptr->p_read_active_last->r_TIC_2.cda=
-                               (__u32)__pa(&p_first->read);
-                }
-                else {
-                        /* make sure we update the CCW so channel doesn't   */
-                       /* fetch it when it is only half done               */
-                        memcpy( &p_end->read1_nop2, &temp_ccw ,
-                               sizeof(struct ccw1));
-                        privptr->p_read_active_last->r_TIC_1.cda=
-                               (__u32)__pa(&p_first->read);
-                        privptr->p_read_active_last->r_TIC_2.cda=
-                               (__u32)__pa(&p_first->read);
-                }
-               /*      chain in new set of blocks                         */
-                privptr->p_read_active_last->next = p_first;
-                privptr->p_read_active_last=p_last;
-        } /* end of if ( privptr-> p_read_active_first ==NULL)  */
-       CLAW_DBF_TEXT(4, trace, "addexit");
-        return 0;
-}    /*     end of add_claw_reads   */
-
-/*-------------------------------------------------------------------*
- *   ccw_check_return_code                                           *
- *                                                                   *
- *-------------------------------------------------------------------*/
-
-static void
-ccw_check_return_code(struct ccw_device *cdev, int return_code)
-{
-       CLAW_DBF_TEXT(4, trace, "ccwret");
-        if (return_code != 0) {
-                switch (return_code) {
-               case -EBUSY: /* BUSY is a transient state no action needed */
-                       break;
-               case -ENODEV:
-                       dev_err(&cdev->dev, "The remote channel adapter is not"
-                               " available\n");
-                       break;
-               case -EINVAL:
-                       dev_err(&cdev->dev,
-                               "The status of the remote channel adapter"
-                               " is not valid\n");
-                       break;
-               default:
-                       dev_err(&cdev->dev, "The common device layer"
-                               " returned error code %d\n",
-                                 return_code);
-               }
-       }
-       CLAW_DBF_TEXT(4, trace, "ccwret");
-}    /*    end of ccw_check_return_code   */
-
-/*-------------------------------------------------------------------*
-*       ccw_check_unit_check                                         *
-*--------------------------------------------------------------------*/
-
-static void
-ccw_check_unit_check(struct chbk * p_ch, unsigned char sense )
-{
-       struct net_device *ndev = p_ch->ndev;
-       struct device *dev = &p_ch->cdev->dev;
-
-       CLAW_DBF_TEXT(4, trace, "unitchek");
-       dev_warn(dev, "The communication peer of %s disconnected\n",
-               ndev->name);
-
-       if (sense & 0x40) {
-               if (sense & 0x01) {
-                       dev_warn(dev, "The remote channel adapter for"
-                               " %s has been reset\n",
-                               ndev->name);
-               }
-       } else if (sense & 0x20) {
-               if (sense & 0x04) {
-                       dev_warn(dev, "A data streaming timeout occurred"
-                               " for %s\n",
-                               ndev->name);
-               } else if (sense & 0x10) {
-                       dev_warn(dev, "The remote channel adapter for %s"
-                               " is faulty\n",
-                               ndev->name);
-               } else {
-                       dev_warn(dev, "A data transfer parity error occurred"
-                               " for %s\n",
-                               ndev->name);
-               }
-       } else if (sense & 0x10) {
-               dev_warn(dev, "A read data parity error occurred"
-                       " for %s\n",
-                       ndev->name);
-       }
-
-}   /*    end of ccw_check_unit_check    */
-
-/*-------------------------------------------------------------------*
-*               find_link                                            *
-*--------------------------------------------------------------------*/
-static int
-find_link(struct net_device *dev, char *host_name, char *ws_name )
-{
-       struct claw_privbk *privptr;
-       struct claw_env *p_env;
-       int    rc=0;
-
-       CLAW_DBF_TEXT(2, setup, "findlink");
-       privptr = dev->ml_priv;
-        p_env=privptr->p_env;
-       switch (p_env->packing)
-       {
-               case  PACKING_ASK:
-                       if ((memcmp(WS_APPL_NAME_PACKED, host_name, 8)!=0) ||
-                           (memcmp(WS_APPL_NAME_PACKED, ws_name, 8)!=0 ))
-                            rc = EINVAL;
-                       break;
-               case  DO_PACKED:
-               case  PACK_SEND:
-                       if ((memcmp(WS_APPL_NAME_IP_NAME, host_name, 8)!=0) ||
-                           (memcmp(WS_APPL_NAME_IP_NAME, ws_name, 8)!=0 ))
-                               rc = EINVAL;
-                       break;
-               default:
-                       if ((memcmp(HOST_APPL_NAME, host_name, 8)!=0) ||
-                           (memcmp(p_env->api_type , ws_name, 8)!=0))
-                               rc = EINVAL;
-                       break;
-       }
-
-       return rc;
-}    /*    end of find_link    */
-
-/*-------------------------------------------------------------------*
- *   claw_hw_tx                                                      *
- *                                                                   *
- *                                                                   *
- *-------------------------------------------------------------------*/
-
-static int
-claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid)
-{
-        int                             rc=0;
-        struct claw_privbk             *privptr;
-        struct ccwbk           *p_this_ccw;
-        struct ccwbk           *p_first_ccw;
-        struct ccwbk           *p_last_ccw;
-        __u32                           numBuffers;
-        signed long                     len_of_data;
-        unsigned long                   bytesInThisBuffer;
-        unsigned char                   *pDataAddress;
-        struct endccw                   *pEnd;
-        struct ccw1                     tempCCW;
-       struct claw_env                 *p_env;
-       struct clawph                   *pk_head;
-       struct chbk                     *ch;
-
-       CLAW_DBF_TEXT(4, trace, "hw_tx");
-       privptr = (struct claw_privbk *)(dev->ml_priv);
-       p_env =privptr->p_env;
-       claw_free_wrt_buf(dev); /* Clean up free chain if posible */
-        /*  scan the write queue to free any completed write packets   */
-        p_first_ccw=NULL;
-        p_last_ccw=NULL;
-       if ((p_env->packing >= PACK_SEND) &&
-                   (skb->cb[1] != 'P')) {
-               skb_push(skb,sizeof(struct clawph));
-               pk_head=(struct clawph *)skb->data;
-               pk_head->len=skb->len-sizeof(struct clawph);
-               if (pk_head->len%4)  {
-                       pk_head->len+= 4-(pk_head->len%4);
-                       skb_pad(skb,4-(pk_head->len%4));
-                       skb_put(skb,4-(pk_head->len%4));
-               }
-               if (p_env->packing == DO_PACKED)
-                       pk_head->link_num = linkid;
-               else
-                       pk_head->link_num = 0;
-               pk_head->flag = 0x00;
-               skb_pad(skb,4);
-               skb->cb[1] = 'P';
-       }
-        if (linkid == 0) {
-               if (claw_check_busy(dev)) {
-                       if (privptr->write_free_count!=0) {
-                                claw_clear_busy(dev);
-                        }
-                        else {
-                                claw_strt_out_IO(dev );
-                                claw_free_wrt_buf( dev );
-                                if (privptr->write_free_count==0) {
-                                       ch = &privptr->channel[WRITE_CHANNEL];
-                                       atomic_inc(&skb->users);
-                                       skb_queue_tail(&ch->collect_queue, skb);
-                                       goto Done;
-                                }
-                                else {
-                                       claw_clear_busy(dev);
-                                }
-                        }
-                }
-                /*  tx lock  */
-                if (claw_test_and_setbit_busy(TB_TX,dev)) { /* set to busy */
-                       ch = &privptr->channel[WRITE_CHANNEL];
-                       atomic_inc(&skb->users);
-                       skb_queue_tail(&ch->collect_queue, skb);
-                        claw_strt_out_IO(dev );
-                        rc=-EBUSY;
-                        goto Done2;
-                }
-        }
-        /*      See how many write buffers are required to hold this data */
-       numBuffers = DIV_ROUND_UP(skb->len, privptr->p_env->write_size);
-
-        /*      If that number of buffers isn't available, give up for now */
-        if (privptr->write_free_count < numBuffers ||
-            privptr->p_write_free_chain == NULL ) {
-
-                claw_setbit_busy(TB_NOBUFFER,dev);
-               ch = &privptr->channel[WRITE_CHANNEL];
-               atomic_inc(&skb->users);
-               skb_queue_tail(&ch->collect_queue, skb);
-               CLAW_DBF_TEXT(2, trace, "clawbusy");
-                goto Done2;
-        }
-        pDataAddress=skb->data;
-        len_of_data=skb->len;
-
-        while (len_of_data > 0) {
-                p_this_ccw=privptr->p_write_free_chain;  /* get a block */
-               if (p_this_ccw == NULL) { /* lost the race */
-                       ch = &privptr->channel[WRITE_CHANNEL];
-                       atomic_inc(&skb->users);
-                       skb_queue_tail(&ch->collect_queue, skb);
-                       goto Done2;
-               }
-                privptr->p_write_free_chain=p_this_ccw->next;
-                p_this_ccw->next=NULL;
-                --privptr->write_free_count; /* -1 */
-               if (len_of_data >= privptr->p_env->write_size)
-                       bytesInThisBuffer = privptr->p_env->write_size;
-               else
-                       bytesInThisBuffer = len_of_data;
-                memcpy( p_this_ccw->p_buffer,pDataAddress, bytesInThisBuffer);
-                len_of_data-=bytesInThisBuffer;
-                pDataAddress+=(unsigned long)bytesInThisBuffer;
-                /*      setup write CCW         */
-                p_this_ccw->write.cmd_code = (linkid * 8) +1;
-                if (len_of_data>0) {
-                        p_this_ccw->write.cmd_code+=MORE_to_COME_FLAG;
-                }
-                p_this_ccw->write.count=bytesInThisBuffer;
-                /*      now add to end of this chain    */
-                if (p_first_ccw==NULL)    {
-                        p_first_ccw=p_this_ccw;
-                }
-                if (p_last_ccw!=NULL) {
-                        p_last_ccw->next=p_this_ccw;
-                        /*      set up TIC ccws         */
-                        p_last_ccw->w_TIC_1.cda=
-                               (__u32)__pa(&p_this_ccw->write);
-                }
-                p_last_ccw=p_this_ccw;      /* save new last block */
-        }
-
-        /*      FirstCCW and LastCCW now contain a new set of write channel
-        *       programs to append to the running channel program
-        */
-
-        if (p_first_ccw!=NULL) {
-               /*      setup ending ccw sequence for this segment           */
-                pEnd=privptr->p_end_ccw;
-                if (pEnd->write1) {
-                        pEnd->write1=0x00;   /* second end ccw is now active */
-                        /*      set up Tic CCWs         */
-                        p_last_ccw->w_TIC_1.cda=
-                               (__u32)__pa(&pEnd->write2_nop1);
-                        pEnd->write2_nop2.cmd_code = CCW_CLAW_CMD_READFF;
-                        pEnd->write2_nop2.flags    =
-                               CCW_FLAG_SLI | CCW_FLAG_SKIP;
-                        pEnd->write2_nop2.cda=0;
-                        pEnd->write2_nop2.count=1;
-                }
-                else {  /*  end of if (pEnd->write1)*/
-                        pEnd->write1=0x01;   /* first end ccw is now active */
-                        /*      set up Tic CCWs         */
-                        p_last_ccw->w_TIC_1.cda=
-                               (__u32)__pa(&pEnd->write1_nop1);
-                        pEnd->write1_nop2.cmd_code = CCW_CLAW_CMD_READFF;
-                        pEnd->write1_nop2.flags    =
-                               CCW_FLAG_SLI | CCW_FLAG_SKIP;
-                        pEnd->write1_nop2.cda=0;
-                        pEnd->write1_nop2.count=1;
-                }  /* end if if (pEnd->write1) */
-
-                if (privptr->p_write_active_first==NULL ) {
-                        privptr->p_write_active_first=p_first_ccw;
-                        privptr->p_write_active_last=p_last_ccw;
-                }
-                else {
-                        /*      set up Tic CCWs         */
-
-                        tempCCW.cda=(__u32)__pa(&p_first_ccw->write);
-                        tempCCW.count=0;
-                        tempCCW.flags=0;
-                        tempCCW.cmd_code=CCW_CLAW_CMD_TIC;
-
-                        if (pEnd->write1) {
-
-                 /*
-                 * first set of ending CCW's is chained to the new write
-                 * chain, so the second set is chained to the active chain
-                 * Therefore modify the second set to point the new write chain.
-                 * make sure we update the CCW atomically
-                 * so channel does not fetch it when it's only half done
-                 */
-                                memcpy( &pEnd->write2_nop2, &tempCCW ,
-                                       sizeof(struct ccw1));
-                                privptr->p_write_active_last->w_TIC_1.cda=
-                                       (__u32)__pa(&p_first_ccw->write);
-                        }
-                        else {
-
-                        /*make sure we update the CCW atomically
-                         *so channel does not fetch it when it's only half done
-                         */
-                                memcpy(&pEnd->write1_nop2, &tempCCW ,
-                                       sizeof(struct ccw1));
-                                privptr->p_write_active_last->w_TIC_1.cda=
-                                       (__u32)__pa(&p_first_ccw->write);
-
-                        } /* end if if (pEnd->write1) */
-
-                        privptr->p_write_active_last->next=p_first_ccw;
-                        privptr->p_write_active_last=p_last_ccw;
-                }
-
-        } /* endif (p_first_ccw!=NULL)  */
-        dev_kfree_skb_any(skb);
-        claw_strt_out_IO(dev );
-        /*      if write free count is zero , set NOBUFFER       */
-       if (privptr->write_free_count==0) {
-               claw_setbit_busy(TB_NOBUFFER,dev);
-        }
-Done2:
-       claw_clearbit_busy(TB_TX,dev);
-Done:
-       return(rc);
-}    /*    end of claw_hw_tx    */
-
-/*-------------------------------------------------------------------*
-*                                                                    *
-*     init_ccw_bk                                                    *
-*                                                                    *
-*--------------------------------------------------------------------*/
-
-static int
-init_ccw_bk(struct net_device *dev)
-{
-
-        __u32   ccw_blocks_required;
-        __u32   ccw_blocks_perpage;
-        __u32   ccw_pages_required;
-        __u32   claw_reads_perpage=1;
-        __u32   claw_read_pages;
-        __u32   claw_writes_perpage=1;
-        __u32   claw_write_pages;
-        void    *p_buff=NULL;
-        struct ccwbk*p_free_chain;
-       struct ccwbk*p_buf;
-       struct ccwbk*p_last_CCWB;
-       struct ccwbk*p_first_CCWB;
-        struct endccw *p_endccw=NULL;
-       addr_t  real_address;
-       struct claw_privbk *privptr = dev->ml_priv;
-        struct clawh *pClawH=NULL;
-        addr_t   real_TIC_address;
-        int i,j;
-       CLAW_DBF_TEXT(4, trace, "init_ccw");
-
-        /*  initialize  statistics field */
-        privptr->active_link_ID=0;
-        /*  initialize  ccwbk pointers  */
-        privptr->p_write_free_chain=NULL;   /* pointer to free ccw chain*/
-        privptr->p_write_active_first=NULL; /* pointer to the first write ccw*/
-        privptr->p_write_active_last=NULL;  /* pointer to the last write ccw*/
-        privptr->p_read_active_first=NULL;  /* pointer to the first read ccw*/
-        privptr->p_read_active_last=NULL;   /* pointer to the last read ccw */
-        privptr->p_end_ccw=NULL;            /* pointer to ending ccw        */
-        privptr->p_claw_signal_blk=NULL;    /* pointer to signal block      */
-       privptr->buffs_alloc = 0;
-        memset(&privptr->end_ccw, 0x00, sizeof(struct endccw));
-        memset(&privptr->ctl_bk, 0x00, sizeof(struct clawctl));
-        /*  initialize  free write ccwbk counter  */
-        privptr->write_free_count=0;  /* number of free bufs on write chain */
-        p_last_CCWB = NULL;
-        p_first_CCWB= NULL;
-        /*
-        *  We need 1 CCW block for each read buffer, 1 for each
-        *  write buffer, plus 1 for ClawSignalBlock
-        */
-        ccw_blocks_required =
-               privptr->p_env->read_buffers+privptr->p_env->write_buffers+1;
-        /*
-        * compute number of CCW blocks that will fit in a page
-        */
-        ccw_blocks_perpage= PAGE_SIZE /  CCWBK_SIZE;
-        ccw_pages_required=
-               DIV_ROUND_UP(ccw_blocks_required, ccw_blocks_perpage);
-
-        /*
-         *  read and write sizes are set by 2 constants in claw.h
-        *  4k and 32k.  Unpacked values other than 4k are not going to
-        * provide good performance. With packing buffers support 32k
-        * buffers are used.
-         */
-       if (privptr->p_env->read_size < PAGE_SIZE) {
-               claw_reads_perpage = PAGE_SIZE / privptr->p_env->read_size;
-               claw_read_pages = DIV_ROUND_UP(privptr->p_env->read_buffers,
-                                               claw_reads_perpage);
-         }
-         else {       /* > or equal  */
-               privptr->p_buff_pages_perread =
-                       DIV_ROUND_UP(privptr->p_env->read_size, PAGE_SIZE);
-               claw_read_pages = privptr->p_env->read_buffers *
-                                       privptr->p_buff_pages_perread;
-         }
-        if (privptr->p_env->write_size < PAGE_SIZE) {
-               claw_writes_perpage =
-                       PAGE_SIZE / privptr->p_env->write_size;
-               claw_write_pages = DIV_ROUND_UP(privptr->p_env->write_buffers,
-                                               claw_writes_perpage);
-
-        }
-        else {      /* >  or equal  */
-               privptr->p_buff_pages_perwrite =
-                       DIV_ROUND_UP(privptr->p_env->read_size, PAGE_SIZE);
-               claw_write_pages = privptr->p_env->write_buffers *
-                                       privptr->p_buff_pages_perwrite;
-        }
-        /*
-        *               allocate ccw_pages_required
-        */
-        if (privptr->p_buff_ccw==NULL) {
-                privptr->p_buff_ccw=
-                       (void *)__get_free_pages(__GFP_DMA,
-                       (int)pages_to_order_of_mag(ccw_pages_required ));
-                if (privptr->p_buff_ccw==NULL) {
-                        return -ENOMEM;
-                }
-                privptr->p_buff_ccw_num=ccw_pages_required;
-        }
-        memset(privptr->p_buff_ccw, 0x00,
-               privptr->p_buff_ccw_num * PAGE_SIZE);
-
-        /*
-        *               obtain ending ccw block address
-        *
-        */
-        privptr->p_end_ccw = (struct endccw *)&privptr->end_ccw;
-        real_address  = (__u32)__pa(privptr->p_end_ccw);
-        /*                              Initialize ending CCW block       */
-        p_endccw=privptr->p_end_ccw;
-        p_endccw->real=real_address;
-        p_endccw->write1=0x00;
-        p_endccw->read1=0x00;
-
-        /*      write1_nop1                                     */
-        p_endccw->write1_nop1.cmd_code = CCW_CLAW_CMD_NOP;
-        p_endccw->write1_nop1.flags       = CCW_FLAG_SLI | CCW_FLAG_CC;
-        p_endccw->write1_nop1.count       = 1;
-        p_endccw->write1_nop1.cda         = 0;
-
-        /*      write1_nop2                                     */
-        p_endccw->write1_nop2.cmd_code = CCW_CLAW_CMD_READFF;
-        p_endccw->write1_nop2.flags        = CCW_FLAG_SLI | CCW_FLAG_SKIP;
-        p_endccw->write1_nop2.count      = 1;
-        p_endccw->write1_nop2.cda        = 0;
-
-        /*      write2_nop1                                     */
-        p_endccw->write2_nop1.cmd_code = CCW_CLAW_CMD_NOP;
-        p_endccw->write2_nop1.flags        = CCW_FLAG_SLI | CCW_FLAG_CC;
-        p_endccw->write2_nop1.count        = 1;
-        p_endccw->write2_nop1.cda          = 0;
-
-        /*      write2_nop2                                     */
-        p_endccw->write2_nop2.cmd_code = CCW_CLAW_CMD_READFF;
-        p_endccw->write2_nop2.flags        = CCW_FLAG_SLI | CCW_FLAG_SKIP;
-        p_endccw->write2_nop2.count        = 1;
-        p_endccw->write2_nop2.cda          = 0;
-
-        /*      read1_nop1                                      */
-        p_endccw->read1_nop1.cmd_code = CCW_CLAW_CMD_NOP;
-        p_endccw->read1_nop1.flags        = CCW_FLAG_SLI | CCW_FLAG_CC;
-        p_endccw->read1_nop1.count        = 1;
-        p_endccw->read1_nop1.cda          = 0;
-
-        /*      read1_nop2                                      */
-        p_endccw->read1_nop2.cmd_code = CCW_CLAW_CMD_READFF;
-        p_endccw->read1_nop2.flags        = CCW_FLAG_SLI | CCW_FLAG_SKIP;
-        p_endccw->read1_nop2.count        = 1;
-        p_endccw->read1_nop2.cda          = 0;
-
-        /*      read2_nop1                                      */
-        p_endccw->read2_nop1.cmd_code = CCW_CLAW_CMD_NOP;
-        p_endccw->read2_nop1.flags        = CCW_FLAG_SLI | CCW_FLAG_CC;
-        p_endccw->read2_nop1.count        = 1;
-        p_endccw->read2_nop1.cda          = 0;
-
-        /*      read2_nop2                                      */
-        p_endccw->read2_nop2.cmd_code = CCW_CLAW_CMD_READFF;
-        p_endccw->read2_nop2.flags        = CCW_FLAG_SLI | CCW_FLAG_SKIP;
-        p_endccw->read2_nop2.count        = 1;
-        p_endccw->read2_nop2.cda          = 0;
-
-        /*
-        *                               Build a chain of CCWs
-        *
-        */
-        p_buff=privptr->p_buff_ccw;
-
-        p_free_chain=NULL;
-        for (i=0 ; i < ccw_pages_required; i++ ) {
-                real_address  = (__u32)__pa(p_buff);
-                p_buf=p_buff;
-                for (j=0 ; j < ccw_blocks_perpage ; j++) {
-                        p_buf->next  = p_free_chain;
-                        p_free_chain = p_buf;
-                        p_buf->real=(__u32)__pa(p_buf);
-                        ++p_buf;
-                }
-                p_buff+=PAGE_SIZE;
-        }
-        /*
-        *                               Initialize ClawSignalBlock
-        *
-        */
-        if (privptr->p_claw_signal_blk==NULL) {
-                privptr->p_claw_signal_blk=p_free_chain;
-                p_free_chain=p_free_chain->next;
-                pClawH=(struct clawh *)privptr->p_claw_signal_blk;
-                pClawH->length=0xffff;
-                pClawH->opcode=0xff;
-                pClawH->flag=CLAW_BUSY;
-        }
-
-        /*
-        *               allocate write_pages_required and add to free chain
-        */
-        if (privptr->p_buff_write==NULL) {
-            if (privptr->p_env->write_size < PAGE_SIZE) {
-                privptr->p_buff_write=
-                       (void *)__get_free_pages(__GFP_DMA,
-                       (int)pages_to_order_of_mag(claw_write_pages ));
-                if (privptr->p_buff_write==NULL) {
-                        privptr->p_buff_ccw=NULL;
-                        return -ENOMEM;
-                }
-                /*
-                *                               Build CLAW write free chain
-                *
-                */
-
-                memset(privptr->p_buff_write, 0x00,
-                       ccw_pages_required * PAGE_SIZE);
-                privptr->p_write_free_chain=NULL;
-
-                p_buff=privptr->p_buff_write;
-
-                for (i=0 ; i< privptr->p_env->write_buffers ; i++) {
-                        p_buf        = p_free_chain;      /*  get a CCW */
-                        p_free_chain = p_buf->next;
-                        p_buf->next  =privptr->p_write_free_chain;
-                        privptr->p_write_free_chain = p_buf;
-                        p_buf-> p_buffer       = (struct clawbuf *)p_buff;
-                        p_buf-> write.cda       = (__u32)__pa(p_buff);
-                        p_buf-> write.flags     = CCW_FLAG_SLI | CCW_FLAG_CC;
-                        p_buf-> w_read_FF.cmd_code = CCW_CLAW_CMD_READFF;
-                        p_buf-> w_read_FF.flags   = CCW_FLAG_SLI | CCW_FLAG_CC;
-                        p_buf-> w_read_FF.count   = 1;
-                        p_buf-> w_read_FF.cda     =
-                               (__u32)__pa(&p_buf-> header.flag);
-                        p_buf-> w_TIC_1.cmd_code = CCW_CLAW_CMD_TIC;
-                        p_buf-> w_TIC_1.flags      = 0;
-                        p_buf-> w_TIC_1.count      = 0;
-
-                       if (((unsigned long)p_buff +
-                                           privptr->p_env->write_size) >=
-                          ((unsigned long)(p_buff+2*
-                           (privptr->p_env->write_size) - 1) & PAGE_MASK)) {
-                               p_buff = p_buff+privptr->p_env->write_size;
-                        }
-                }
-           }
-           else      /*  Buffers are => PAGE_SIZE. 1 buff per get_free_pages */
-           {
-               privptr->p_write_free_chain=NULL;
-               for (i = 0; i< privptr->p_env->write_buffers ; i++) {
-                   p_buff=(void *)__get_free_pages(__GFP_DMA,
-                       (int)pages_to_order_of_mag(
-                       privptr->p_buff_pages_perwrite) );
-                   if (p_buff==NULL) {
-                        free_pages((unsigned long)privptr->p_buff_ccw,
-                             (int)pages_to_order_of_mag(
-                                       privptr->p_buff_ccw_num));
-                        privptr->p_buff_ccw=NULL;
-                       p_buf=privptr->p_buff_write;
-                        while (p_buf!=NULL) {
-                                free_pages((unsigned long)
-                                       p_buf->p_buffer,
-                                       (int)pages_to_order_of_mag(
-                                       privptr->p_buff_pages_perwrite));
-                                p_buf=p_buf->next;
-                        }
-                        return -ENOMEM;
-                   }  /* Error on get_pages   */
-                   memset(p_buff, 0x00, privptr->p_env->write_size );
-                   p_buf         = p_free_chain;
-                   p_free_chain  = p_buf->next;
-                   p_buf->next   = privptr->p_write_free_chain;
-                   privptr->p_write_free_chain = p_buf;
-                   privptr->p_buff_write = p_buf;
-                   p_buf->p_buffer=(struct clawbuf *)p_buff;
-                   p_buf-> write.cda     = (__u32)__pa(p_buff);
-                   p_buf-> write.flags   = CCW_FLAG_SLI | CCW_FLAG_CC;
-                   p_buf-> w_read_FF.cmd_code = CCW_CLAW_CMD_READFF;
-                   p_buf-> w_read_FF.flags    = CCW_FLAG_SLI | CCW_FLAG_CC;
-                   p_buf-> w_read_FF.count    = 1;
-                   p_buf-> w_read_FF.cda      =
-                       (__u32)__pa(&p_buf-> header.flag);
-                   p_buf-> w_TIC_1.cmd_code = CCW_CLAW_CMD_TIC;
-                   p_buf-> w_TIC_1.flags   = 0;
-                   p_buf-> w_TIC_1.count   = 0;
-               }  /* for all write_buffers   */
-
-           }    /* else buffers are PAGE_SIZE or bigger */
-
-        }
-        privptr->p_buff_write_num=claw_write_pages;
-        privptr->write_free_count=privptr->p_env->write_buffers;
-
-
-        /*
-        *               allocate read_pages_required and chain to free chain
-        */
-        if (privptr->p_buff_read==NULL) {
-            if (privptr->p_env->read_size < PAGE_SIZE)  {
-                privptr->p_buff_read=
-                       (void *)__get_free_pages(__GFP_DMA,
-                       (int)pages_to_order_of_mag(claw_read_pages) );
-                if (privptr->p_buff_read==NULL) {
-                        free_pages((unsigned long)privptr->p_buff_ccw,
-                               (int)pages_to_order_of_mag(
-                                       privptr->p_buff_ccw_num));
-                       /* free the write pages size is < page size  */
-                        free_pages((unsigned long)privptr->p_buff_write,
-                               (int)pages_to_order_of_mag(
-                               privptr->p_buff_write_num));
-                        privptr->p_buff_ccw=NULL;
-                        privptr->p_buff_write=NULL;
-                        return -ENOMEM;
-                }
-                memset(privptr->p_buff_read, 0x00, claw_read_pages * PAGE_SIZE);
-                privptr->p_buff_read_num=claw_read_pages;
-                /*
-                *                               Build CLAW read free chain
-                *
-                */
-                p_buff=privptr->p_buff_read;
-                for (i=0 ; i< privptr->p_env->read_buffers ; i++) {
-                        p_buf        = p_free_chain;
-                        p_free_chain = p_buf->next;
-
-                        if (p_last_CCWB==NULL) {
-                                p_buf->next=NULL;
-                                real_TIC_address=0;
-                                p_last_CCWB=p_buf;
-                        }
-                        else {
-                                p_buf->next=p_first_CCWB;
-                                real_TIC_address=
-                               (__u32)__pa(&p_first_CCWB -> read );
-                        }
-
-                        p_first_CCWB=p_buf;
-
-                        p_buf->p_buffer=(struct clawbuf *)p_buff;
-                        /*  initialize read command */
-                        p_buf-> read.cmd_code = CCW_CLAW_CMD_READ;
-                        p_buf-> read.cda = (__u32)__pa(p_buff);
-                        p_buf-> read.flags = CCW_FLAG_SLI | CCW_FLAG_CC;
-                        p_buf-> read.count       = privptr->p_env->read_size;
-
-                        /*  initialize read_h command */
-                        p_buf-> read_h.cmd_code = CCW_CLAW_CMD_READHEADER;
-                        p_buf-> read_h.cda =
-                               (__u32)__pa(&(p_buf->header));
-                        p_buf-> read_h.flags = CCW_FLAG_SLI | CCW_FLAG_CC;
-                        p_buf-> read_h.count      = sizeof(struct clawh);
-
-                        /*  initialize Signal command */
-                        p_buf-> signal.cmd_code = CCW_CLAW_CMD_SIGNAL_SMOD;
-                        p_buf-> signal.cda =
-                               (__u32)__pa(&(pClawH->flag));
-                        p_buf-> signal.flags = CCW_FLAG_SLI | CCW_FLAG_CC;
-                        p_buf-> signal.count     = 1;
-
-                        /*  initialize r_TIC_1 command */
-                        p_buf-> r_TIC_1.cmd_code = CCW_CLAW_CMD_TIC;
-                        p_buf-> r_TIC_1.cda = (__u32)real_TIC_address;
-                        p_buf-> r_TIC_1.flags = 0;
-                        p_buf-> r_TIC_1.count      = 0;
-
-                        /*  initialize r_read_FF command */
-                        p_buf-> r_read_FF.cmd_code = CCW_CLAW_CMD_READFF;
-                        p_buf-> r_read_FF.cda =
-                               (__u32)__pa(&(pClawH->flag));
-                        p_buf-> r_read_FF.flags =
-                               CCW_FLAG_SLI | CCW_FLAG_CC | CCW_FLAG_PCI;
-                        p_buf-> r_read_FF.count    = 1;
-
-                        /*    initialize r_TIC_2          */
-                        memcpy(&p_buf->r_TIC_2,
-                               &p_buf->r_TIC_1, sizeof(struct ccw1));
-
-                        /*     initialize Header     */
-                        p_buf->header.length=0xffff;
-                        p_buf->header.opcode=0xff;
-                        p_buf->header.flag=CLAW_PENDING;
-
-                       if (((unsigned long)p_buff+privptr->p_env->read_size) >=
-                         ((unsigned long)(p_buff+2*(privptr->p_env->read_size)
-                                -1)
-                          & PAGE_MASK)) {
-                                p_buff= p_buff+privptr->p_env->read_size;
-                        }
-                        else {
-                                p_buff=
-                               (void *)((unsigned long)
-                                       (p_buff+2*(privptr->p_env->read_size)-1)
-                                        & PAGE_MASK) ;
-                        }
-                }   /* for read_buffers   */
-          }         /* read_size < PAGE_SIZE  */
-          else {  /* read Size >= PAGE_SIZE  */
-                for (i=0 ; i< privptr->p_env->read_buffers ; i++) {
-                        p_buff = (void *)__get_free_pages(__GFP_DMA,
-                               (int)pages_to_order_of_mag(
-                                       privptr->p_buff_pages_perread));
-                        if (p_buff==NULL) {
-                                free_pages((unsigned long)privptr->p_buff_ccw,
-                                       (int)pages_to_order_of_mag(privptr->
-                                       p_buff_ccw_num));
-                               /* free the write pages  */
-                               p_buf=privptr->p_buff_write;
-                                while (p_buf!=NULL) {
-                                       free_pages(
-                                           (unsigned long)p_buf->p_buffer,
-                                           (int)pages_to_order_of_mag(
-                                           privptr->p_buff_pages_perwrite));
-                                        p_buf=p_buf->next;
-                                }
-                               /* free any read pages already alloc  */
-                               p_buf=privptr->p_buff_read;
-                                while (p_buf!=NULL) {
-                                       free_pages(
-                                           (unsigned long)p_buf->p_buffer,
-                                           (int)pages_to_order_of_mag(
-                                            privptr->p_buff_pages_perread));
-                                        p_buf=p_buf->next;
-                                }
-                                privptr->p_buff_ccw=NULL;
-                                privptr->p_buff_write=NULL;
-                                return -ENOMEM;
-                        }
-                        memset(p_buff, 0x00, privptr->p_env->read_size);
-                        p_buf        = p_free_chain;
-                        privptr->p_buff_read = p_buf;
-                        p_free_chain = p_buf->next;
-
-                        if (p_last_CCWB==NULL) {
-                                p_buf->next=NULL;
-                                real_TIC_address=0;
-                                p_last_CCWB=p_buf;
-                        }
-                        else {
-                                p_buf->next=p_first_CCWB;
-                                real_TIC_address=
-                                       (addr_t)__pa(
-                                               &p_first_CCWB -> read );
-                        }
-
-                        p_first_CCWB=p_buf;
-                               /* save buff address */
-                        p_buf->p_buffer=(struct clawbuf *)p_buff;
-                        /*  initialize read command */
-                        p_buf-> read.cmd_code = CCW_CLAW_CMD_READ;
-                        p_buf-> read.cda = (__u32)__pa(p_buff);
-                        p_buf-> read.flags = CCW_FLAG_SLI | CCW_FLAG_CC;
-                        p_buf-> read.count       = privptr->p_env->read_size;
-
-                        /*  initialize read_h command */
-                        p_buf-> read_h.cmd_code = CCW_CLAW_CMD_READHEADER;
-                        p_buf-> read_h.cda =
-                               (__u32)__pa(&(p_buf->header));
-                        p_buf-> read_h.flags = CCW_FLAG_SLI | CCW_FLAG_CC;
-                        p_buf-> read_h.count      = sizeof(struct clawh);
-
-                        /*  initialize Signal command */
-                        p_buf-> signal.cmd_code = CCW_CLAW_CMD_SIGNAL_SMOD;
-                        p_buf-> signal.cda =
-                               (__u32)__pa(&(pClawH->flag));
-                        p_buf-> signal.flags = CCW_FLAG_SLI | CCW_FLAG_CC;
-                        p_buf-> signal.count     = 1;
-
-                        /*  initialize r_TIC_1 command */
-                        p_buf-> r_TIC_1.cmd_code = CCW_CLAW_CMD_TIC;
-                        p_buf-> r_TIC_1.cda = (__u32)real_TIC_address;
-                        p_buf-> r_TIC_1.flags = 0;
-                        p_buf-> r_TIC_1.count      = 0;
-
-                        /*  initialize r_read_FF command */
-                        p_buf-> r_read_FF.cmd_code = CCW_CLAW_CMD_READFF;
-                        p_buf-> r_read_FF.cda =
-                               (__u32)__pa(&(pClawH->flag));
-                        p_buf-> r_read_FF.flags =
-                               CCW_FLAG_SLI | CCW_FLAG_CC | CCW_FLAG_PCI;
-                        p_buf-> r_read_FF.count    = 1;
-
-                        /*    initialize r_TIC_2          */
-                        memcpy(&p_buf->r_TIC_2, &p_buf->r_TIC_1,
-                               sizeof(struct ccw1));
-
-                        /*     initialize Header     */
-                        p_buf->header.length=0xffff;
-                        p_buf->header.opcode=0xff;
-                        p_buf->header.flag=CLAW_PENDING;
-
-                }    /* For read_buffers   */
-          }     /*  read_size >= PAGE_SIZE   */
-        }       /*  pBuffread = NULL */
-        add_claw_reads( dev  ,p_first_CCWB , p_last_CCWB);
-       privptr->buffs_alloc = 1;
-
-        return 0;
-}    /*    end of init_ccw_bk */
-
-/*-------------------------------------------------------------------*
-*                                                                    *
-*       probe_error                                                  *
-*                                                                    *
-*--------------------------------------------------------------------*/
-
-static void
-probe_error( struct ccwgroup_device *cgdev)
-{
-       struct claw_privbk *privptr;
-
-       CLAW_DBF_TEXT(4, trace, "proberr");
-       privptr = dev_get_drvdata(&cgdev->dev);
-       if (privptr != NULL) {
-               dev_set_drvdata(&cgdev->dev, NULL);
-               kfree(privptr->p_env);
-               kfree(privptr->p_mtc_envelope);
-               kfree(privptr);
-       }
-}    /*    probe_error    */
-
-/*-------------------------------------------------------------------*
-*    claw_process_control                                            *
-*                                                                    *
-*                                                                    *
-*--------------------------------------------------------------------*/
-
-static int
-claw_process_control( struct net_device *dev, struct ccwbk * p_ccw)
-{
-
-        struct clawbuf *p_buf;
-        struct clawctl  ctlbk;
-        struct clawctl *p_ctlbk;
-        char    temp_host_name[8];
-        char    temp_ws_name[8];
-        struct claw_privbk *privptr;
-        struct claw_env *p_env;
-        struct sysval *p_sysval;
-        struct conncmd *p_connect=NULL;
-        int rc;
-        struct chbk *p_ch = NULL;
-       struct device *tdev;
-       CLAW_DBF_TEXT(2, setup, "clw_cntl");
-        udelay(1000);  /* Wait a ms for the control packets to
-                       *catch up to each other */
-       privptr = dev->ml_priv;
-        p_env=privptr->p_env;
-       tdev = &privptr->channel[READ_CHANNEL].cdev->dev;
-       memcpy( &temp_host_name, p_env->host_name, 8);
-        memcpy( &temp_ws_name, p_env->adapter_name , 8);
-       dev_info(tdev, "%s: CLAW device %.8s: "
-               "Received Control Packet\n",
-               dev->name, temp_ws_name);
-        if (privptr->release_pend==1) {
-                return 0;
-        }
-        p_buf=p_ccw->p_buffer;
-        p_ctlbk=&ctlbk;
-       if (p_env->packing == DO_PACKED) { /* packing in progress?*/
-               memcpy(p_ctlbk, &p_buf->buffer[4], sizeof(struct clawctl));
-       } else {
-               memcpy(p_ctlbk, p_buf, sizeof(struct clawctl));
-       }
-        switch (p_ctlbk->command)
-        {
-       case SYSTEM_VALIDATE_REQUEST:
-               if (p_ctlbk->version != CLAW_VERSION_ID) {
-                       claw_snd_sys_validate_rsp(dev, p_ctlbk,
-                               CLAW_RC_WRONG_VERSION);
-                       dev_warn(tdev, "The communication peer of %s"
-                               " uses an incorrect API version %d\n",
-                               dev->name, p_ctlbk->version);
-               }
-               p_sysval = (struct sysval *)&(p_ctlbk->data);
-               dev_info(tdev, "%s: Recv Sys Validate Request: "
-                       "Vers=%d,link_id=%d,Corr=%d,WS name=%.8s,"
-                       "Host name=%.8s\n",
-                       dev->name, p_ctlbk->version,
-                       p_ctlbk->linkid,
-                       p_ctlbk->correlator,
-                       p_sysval->WS_name,
-                       p_sysval->host_name);
-               if (memcmp(temp_host_name, p_sysval->host_name, 8)) {
-                       claw_snd_sys_validate_rsp(dev, p_ctlbk,
-                               CLAW_RC_NAME_MISMATCH);
-                       CLAW_DBF_TEXT(2, setup, "HSTBAD");
-                       CLAW_DBF_TEXT_(2, setup, "%s", p_sysval->host_name);
-                       CLAW_DBF_TEXT_(2, setup, "%s", temp_host_name);
-                       dev_warn(tdev,
-                               "Host name %s for %s does not match the"
-                               " remote adapter name %s\n",
-                               p_sysval->host_name,
-                               dev->name,
-                               temp_host_name);
-               }
-               if (memcmp(temp_ws_name, p_sysval->WS_name, 8)) {
-                       claw_snd_sys_validate_rsp(dev, p_ctlbk,
-                               CLAW_RC_NAME_MISMATCH);
-                       CLAW_DBF_TEXT(2, setup, "WSNBAD");
-                       CLAW_DBF_TEXT_(2, setup, "%s", p_sysval->WS_name);
-                       CLAW_DBF_TEXT_(2, setup, "%s", temp_ws_name);
-                       dev_warn(tdev, "Adapter name %s for %s does not match"
-                               " the remote host name %s\n",
-                               p_sysval->WS_name,
-                               dev->name,
-                               temp_ws_name);
-               }
-               if ((p_sysval->write_frame_size < p_env->write_size) &&
-                   (p_env->packing == 0)) {
-                       claw_snd_sys_validate_rsp(dev, p_ctlbk,
-                               CLAW_RC_HOST_RCV_TOO_SMALL);
-                       dev_warn(tdev,
-                               "The local write buffer is smaller than the"
-                               " remote read buffer\n");
-                       CLAW_DBF_TEXT(2, setup, "wrtszbad");
-               }
-               if ((p_sysval->read_frame_size < p_env->read_size) &&
-                   (p_env->packing == 0)) {
-                       claw_snd_sys_validate_rsp(dev, p_ctlbk,
-                               CLAW_RC_HOST_RCV_TOO_SMALL);
-                       dev_warn(tdev,
-                               "The local read buffer is smaller than the"
-                               " remote write buffer\n");
-                       CLAW_DBF_TEXT(2, setup, "rdsizbad");
-               }
-               claw_snd_sys_validate_rsp(dev, p_ctlbk, 0);
-               dev_info(tdev,
-                       "CLAW device %.8s: System validate"
-                       " completed.\n", temp_ws_name);
-               dev_info(tdev,
-                       "%s: sys Validate Rsize:%d Wsize:%d\n",
-                       dev->name, p_sysval->read_frame_size,
-                       p_sysval->write_frame_size);
-               privptr->system_validate_comp = 1;
-               if (strncmp(p_env->api_type, WS_APPL_NAME_PACKED, 6) == 0)
-                       p_env->packing = PACKING_ASK;
-               claw_strt_conn_req(dev);
-               break;
-       case SYSTEM_VALIDATE_RESPONSE:
-               p_sysval = (struct sysval *)&(p_ctlbk->data);
-               dev_info(tdev,
-                       "Settings for %s validated (version=%d, "
-                       "remote device=%d, rc=%d, adapter name=%.8s, "
-                       "host name=%.8s)\n",
-                       dev->name,
-                       p_ctlbk->version,
-                       p_ctlbk->correlator,
-                       p_ctlbk->rc,
-                       p_sysval->WS_name,
-                       p_sysval->host_name);
-               switch (p_ctlbk->rc) {
-               case 0:
-                       dev_info(tdev, "%s: CLAW device "
-                               "%.8s: System validate completed.\n",
-                               dev->name, temp_ws_name);
-                       if (privptr->system_validate_comp == 0)
-                               claw_strt_conn_req(dev);
-                       privptr->system_validate_comp = 1;
-                       break;
-               case CLAW_RC_NAME_MISMATCH:
-                       dev_warn(tdev, "Validating %s failed because of"
-                               " a host or adapter name mismatch\n",
-                               dev->name);
-                       break;
-               case CLAW_RC_WRONG_VERSION:
-                       dev_warn(tdev, "Validating %s failed because of a"
-                               " version conflict\n",
-                               dev->name);
-                       break;
-               case CLAW_RC_HOST_RCV_TOO_SMALL:
-                       dev_warn(tdev, "Validating %s failed because of a"
-                               " frame size conflict\n",
-                               dev->name);
-                       break;
-               default:
-                       dev_warn(tdev, "The communication peer of %s rejected"
-                               " the connection\n",
-                                dev->name);
-                       break;
-               }
-               break;
-
-       case CONNECTION_REQUEST:
-               p_connect = (struct conncmd *)&(p_ctlbk->data);
-               dev_info(tdev, "%s: Recv Conn Req: Vers=%d,link_id=%d,"
-                       "Corr=%d,HOST appl=%.8s,WS appl=%.8s\n",
-                       dev->name,
-                       p_ctlbk->version,
-                       p_ctlbk->linkid,
-                       p_ctlbk->correlator,
-                       p_connect->host_name,
-                       p_connect->WS_name);
-               if (privptr->active_link_ID != 0) {
-                       claw_snd_disc(dev, p_ctlbk);
-                       dev_info(tdev, "%s rejected a connection request"
-                               " because it is already active\n",
-                               dev->name);
-               }
-               if (p_ctlbk->linkid != 1) {
-                       claw_snd_disc(dev, p_ctlbk);
-                       dev_info(tdev, "%s rejected a request to open multiple"
-                               " connections\n",
-                               dev->name);
-               }
-               rc = find_link(dev, p_connect->host_name, p_connect->WS_name);
-               if (rc != 0) {
-                       claw_snd_disc(dev, p_ctlbk);
-                       dev_info(tdev, "%s rejected a connection request"
-                               " because of a type mismatch\n",
-                               dev->name);
-               }
-               claw_send_control(dev,
-                       CONNECTION_CONFIRM, p_ctlbk->linkid,
-                       p_ctlbk->correlator,
-                       0, p_connect->host_name,
-                       p_connect->WS_name);
-               if (p_env->packing == PACKING_ASK) {
-                       p_env->packing = PACK_SEND;
-                       claw_snd_conn_req(dev, 0);
-               }
-               dev_info(tdev, "%s: CLAW device %.8s: Connection "
-                       "completed link_id=%d.\n",
-                       dev->name, temp_ws_name,
-                       p_ctlbk->linkid);
-                       privptr->active_link_ID = p_ctlbk->linkid;
-                       p_ch = &privptr->channel[WRITE_CHANNEL];
-                       wake_up(&p_ch->wait);  /* wake up claw_open ( WRITE) */
-               break;
-       case CONNECTION_RESPONSE:
-               p_connect = (struct conncmd *)&(p_ctlbk->data);
-               dev_info(tdev, "%s: Recv Conn Resp: Vers=%d,link_id=%d,"
-                       "Corr=%d,RC=%d,Host appl=%.8s, WS appl=%.8s\n",
-                       dev->name,
-                       p_ctlbk->version,
-                       p_ctlbk->linkid,
-                       p_ctlbk->correlator,
-                       p_ctlbk->rc,
-                       p_connect->host_name,
-                       p_connect->WS_name);
-
-               if (p_ctlbk->rc != 0) {
-                       dev_warn(tdev, "The communication peer of %s rejected"
-                               " a connection request\n",
-                               dev->name);
-                       return 1;
-               }
-               rc = find_link(dev,
-                       p_connect->host_name, p_connect->WS_name);
-               if (rc != 0) {
-                       claw_snd_disc(dev, p_ctlbk);
-                       dev_warn(tdev, "The communication peer of %s"
-                               " rejected a connection "
-                               "request because of a type mismatch\n",
-                                dev->name);
-               }
-               /* should be until CONNECTION_CONFIRM */
-               privptr->active_link_ID = -(p_ctlbk->linkid);
-               break;
-       case CONNECTION_CONFIRM:
-               p_connect = (struct conncmd *)&(p_ctlbk->data);
-               dev_info(tdev,
-                       "%s: Recv Conn Confirm:Vers=%d,link_id=%d,"
-                       "Corr=%d,Host appl=%.8s,WS appl=%.8s\n",
-                       dev->name,
-                       p_ctlbk->version,
-                       p_ctlbk->linkid,
-                       p_ctlbk->correlator,
-                       p_connect->host_name,
-                       p_connect->WS_name);
-               if (p_ctlbk->linkid == -(privptr->active_link_ID)) {
-                       privptr->active_link_ID = p_ctlbk->linkid;
-                       if (p_env->packing > PACKING_ASK) {
-                               dev_info(tdev,
-                               "%s: Confirmed Now packing\n", dev->name);
-                               p_env->packing = DO_PACKED;
-                       }
-                       p_ch = &privptr->channel[WRITE_CHANNEL];
-                       wake_up(&p_ch->wait);
-               } else {
-                       dev_warn(tdev, "Activating %s failed because of"
-                               " an incorrect link ID=%d\n",
-                               dev->name, p_ctlbk->linkid);
-                       claw_snd_disc(dev, p_ctlbk);
-               }
-               break;
-       case DISCONNECT:
-               dev_info(tdev, "%s: Disconnect: "
-                       "Vers=%d,link_id=%d,Corr=%d\n",
-                       dev->name, p_ctlbk->version,
-                       p_ctlbk->linkid, p_ctlbk->correlator);
-               if ((p_ctlbk->linkid == 2) &&
-                   (p_env->packing == PACK_SEND)) {
-                       privptr->active_link_ID = 1;
-                       p_env->packing = DO_PACKED;
-               } else
-                       privptr->active_link_ID = 0;
-               break;
-       case CLAW_ERROR:
-               dev_warn(tdev, "The communication peer of %s failed\n",
-                       dev->name);
-               break;
-       default:
-               dev_warn(tdev, "The communication peer of %s sent"
-                       " an unknown command code\n",
-                       dev->name);
-               break;
-        }
-
-        return 0;
-}   /*    end of claw_process_control    */
-
-
-/*-------------------------------------------------------------------*
-*               claw_send_control                                    *
-*                                                                    *
-*--------------------------------------------------------------------*/
-
-static int
-claw_send_control(struct net_device *dev, __u8 type, __u8 link,
-        __u8 correlator, __u8 rc, char *local_name, char *remote_name)
-{
-        struct claw_privbk             *privptr;
-        struct clawctl                  *p_ctl;
-        struct sysval                   *p_sysval;
-        struct conncmd                  *p_connect;
-        struct sk_buff                         *skb;
-
-       CLAW_DBF_TEXT(2, setup, "sndcntl");
-       privptr = dev->ml_priv;
-        p_ctl=(struct clawctl *)&privptr->ctl_bk;
-
-        p_ctl->command=type;
-        p_ctl->version=CLAW_VERSION_ID;
-        p_ctl->linkid=link;
-        p_ctl->correlator=correlator;
-        p_ctl->rc=rc;
-
-        p_sysval=(struct sysval *)&p_ctl->data;
-        p_connect=(struct conncmd *)&p_ctl->data;
-
-        switch (p_ctl->command) {
-                case SYSTEM_VALIDATE_REQUEST:
-                case SYSTEM_VALIDATE_RESPONSE:
-                        memcpy(&p_sysval->host_name, local_name, 8);
-                        memcpy(&p_sysval->WS_name, remote_name, 8);
-                       if (privptr->p_env->packing > 0) {
-                               p_sysval->read_frame_size = DEF_PACK_BUFSIZE;
-                               p_sysval->write_frame_size = DEF_PACK_BUFSIZE;
-                       } else {
-                               /* how big is the biggest group of packets */
-                          p_sysval->read_frame_size =
-                               privptr->p_env->read_size;
-                          p_sysval->write_frame_size =
-                               privptr->p_env->write_size;
-                       }
-                        memset(&p_sysval->reserved, 0x00, 4);
-                        break;
-                case CONNECTION_REQUEST:
-                case CONNECTION_RESPONSE:
-                case CONNECTION_CONFIRM:
-                case DISCONNECT:
-                        memcpy(&p_sysval->host_name, local_name, 8);
-                        memcpy(&p_sysval->WS_name, remote_name, 8);
-                       if (privptr->p_env->packing > 0) {
-                       /* How big is the biggest packet */
-                               p_connect->reserved1[0]=CLAW_FRAME_SIZE;
-                               p_connect->reserved1[1]=CLAW_FRAME_SIZE;
-                       } else {
-                               memset(&p_connect->reserved1, 0x00, 4);
-                               memset(&p_connect->reserved2, 0x00, 4);
-                       }
-                        break;
-                default:
-                        break;
-        }
-
-        /*      write Control Record to the device                   */
-
-
-        skb = dev_alloc_skb(sizeof(struct clawctl));
-        if (!skb) {
-                return -ENOMEM;
-        }
-       memcpy(skb_put(skb, sizeof(struct clawctl)),
-               p_ctl, sizeof(struct clawctl));
-       if (privptr->p_env->packing >= PACK_SEND)
-               claw_hw_tx(skb, dev, 1);
-       else
-               claw_hw_tx(skb, dev, 0);
-        return 0;
-}  /*   end of claw_send_control  */
-
-/*-------------------------------------------------------------------*
-*               claw_snd_conn_req                                    *
-*                                                                    *
-*--------------------------------------------------------------------*/
-static int
-claw_snd_conn_req(struct net_device *dev, __u8 link)
-{
-        int                rc;
-       struct claw_privbk *privptr = dev->ml_priv;
-        struct clawctl            *p_ctl;
-
-       CLAW_DBF_TEXT(2, setup, "snd_conn");
-       rc = 1;
-        p_ctl=(struct clawctl *)&privptr->ctl_bk;
-       p_ctl->linkid = link;
-        if ( privptr->system_validate_comp==0x00 ) {
-                return rc;
-        }
-       if (privptr->p_env->packing == PACKING_ASK )
-               rc=claw_send_control(dev, CONNECTION_REQUEST,0,0,0,
-                       WS_APPL_NAME_PACKED, WS_APPL_NAME_PACKED);
-       if (privptr->p_env->packing == PACK_SEND)  {
-               rc=claw_send_control(dev, CONNECTION_REQUEST,0,0,0,
-                       WS_APPL_NAME_IP_NAME, WS_APPL_NAME_IP_NAME);
-       }
-       if (privptr->p_env->packing == 0)
-               rc=claw_send_control(dev, CONNECTION_REQUEST,0,0,0,
-                               HOST_APPL_NAME, privptr->p_env->api_type);
-        return rc;
-
-}  /*  end of claw_snd_conn_req */
-
-
-/*-------------------------------------------------------------------*
-*               claw_snd_disc                                        *
-*                                                                    *
-*--------------------------------------------------------------------*/
-
-static int
-claw_snd_disc(struct net_device *dev, struct clawctl * p_ctl)
-{
-        int rc;
-        struct conncmd *  p_connect;
-
-       CLAW_DBF_TEXT(2, setup, "snd_dsc");
-        p_connect=(struct conncmd *)&p_ctl->data;
-
-        rc=claw_send_control(dev, DISCONNECT, p_ctl->linkid,
-               p_ctl->correlator, 0,
-                p_connect->host_name, p_connect->WS_name);
-        return rc;
-}     /*   end of claw_snd_disc    */
-
-
-/*-------------------------------------------------------------------*
-*               claw_snd_sys_validate_rsp                            *
-*                                                                    *
-*--------------------------------------------------------------------*/
-
-static int
-claw_snd_sys_validate_rsp(struct net_device *dev,
-       struct clawctl *p_ctl, __u32 return_code)
-{
-        struct claw_env *  p_env;
-        struct claw_privbk *privptr;
-        int    rc;
-
-       CLAW_DBF_TEXT(2, setup, "chkresp");
-       privptr = dev->ml_priv;
-        p_env=privptr->p_env;
-        rc=claw_send_control(dev, SYSTEM_VALIDATE_RESPONSE,
-               p_ctl->linkid,
-               p_ctl->correlator,
-                return_code,
-               p_env->host_name,
-               p_env->adapter_name  );
-        return rc;
-}     /*    end of claw_snd_sys_validate_rsp    */
-
-/*-------------------------------------------------------------------*
-*               claw_strt_conn_req                                   *
-*                                                                    *
-*--------------------------------------------------------------------*/
-
-static int
-claw_strt_conn_req(struct net_device *dev )
-{
-        int rc;
-
-       CLAW_DBF_TEXT(2, setup, "conn_req");
-        rc=claw_snd_conn_req(dev, 1);
-        return rc;
-}    /*   end of claw_strt_conn_req   */
-
-
-
-/*-------------------------------------------------------------------*
- *   claw_stats                                                      *
- *-------------------------------------------------------------------*/
-
-static struct
-net_device_stats *claw_stats(struct net_device *dev)
-{
-        struct claw_privbk *privptr;
-
-       CLAW_DBF_TEXT(4, trace, "stats");
-       privptr = dev->ml_priv;
-        return &privptr->stats;
-}     /*   end of claw_stats   */
-
-
-/*-------------------------------------------------------------------*
-*       unpack_read                                                  *
-*                                                                    *
-*--------------------------------------------------------------------*/
-static void
-unpack_read(struct net_device *dev )
-{
-        struct sk_buff *skb;
-        struct claw_privbk *privptr;
-       struct claw_env    *p_env;
-        struct ccwbk   *p_this_ccw;
-        struct ccwbk   *p_first_ccw;
-        struct ccwbk   *p_last_ccw;
-       struct clawph   *p_packh;
-       void            *p_packd;
-       struct clawctl  *p_ctlrec=NULL;
-       struct device   *p_dev;
-
-        __u32  len_of_data;
-       __u32   pack_off;
-        __u8   link_num;
-        __u8   mtc_this_frm=0;
-        __u32  bytes_to_mov;
-        int    i=0;
-       int     p=0;
-
-       CLAW_DBF_TEXT(4, trace, "unpkread");
-        p_first_ccw=NULL;
-        p_last_ccw=NULL;
-       p_packh=NULL;
-       p_packd=NULL;
-       privptr = dev->ml_priv;
-
-       p_dev = &privptr->channel[READ_CHANNEL].cdev->dev;
-       p_env = privptr->p_env;
-        p_this_ccw=privptr->p_read_active_first;
-       while (p_this_ccw!=NULL && p_this_ccw->header.flag!=CLAW_PENDING) {
-               pack_off = 0;
-               p = 0;
-               p_this_ccw->header.flag=CLAW_PENDING;
-               privptr->p_read_active_first=p_this_ccw->next;
-                p_this_ccw->next=NULL;
-               p_packh = (struct clawph *)p_this_ccw->p_buffer;
-               if ((p_env->packing == PACK_SEND) &&
-                   (p_packh->len == 32)           &&
-                   (p_packh->link_num == 0)) {   /* is it a packed ctl rec? */
-                       p_packh++;  /* peek past pack header */
-                       p_ctlrec = (struct clawctl *)p_packh;
-                       p_packh--;  /* un peek */
-                       if ((p_ctlrec->command == CONNECTION_RESPONSE) ||
-                           (p_ctlrec->command == CONNECTION_CONFIRM))
-                               p_env->packing = DO_PACKED;
-               }
-               if (p_env->packing == DO_PACKED)
-                       link_num=p_packh->link_num;
-               else
-                       link_num=p_this_ccw->header.opcode / 8;
-                if ((p_this_ccw->header.opcode & MORE_to_COME_FLAG)!=0) {
-                        mtc_this_frm=1;
-                        if (p_this_ccw->header.length!=
-                               privptr->p_env->read_size ) {
-                               dev_warn(p_dev,
-                                       "The communication peer of %s"
-                                       " sent a faulty"
-                                       " frame of length %02x\n",
-                                        dev->name, p_this_ccw->header.length);
-                        }
-                }
-
-                if (privptr->mtc_skipping) {
-                        /*
-                        *   We're in the mode of skipping past a
-                       *   multi-frame message
-                        *   that we can't process for some reason or other.
-                        *   The first frame without the More-To-Come flag is
-                       *   the last frame of the skipped message.
-                        */
-                        /*  in case of More-To-Come not set in this frame */
-                        if (mtc_this_frm==0) {
-                                privptr->mtc_skipping=0; /* Ok, the end */
-                                privptr->mtc_logical_link=-1;
-                        }
-                        goto NextFrame;
-                }
-
-                if (link_num==0) {
-                        claw_process_control(dev, p_this_ccw);
-                       CLAW_DBF_TEXT(4, trace, "UnpkCntl");
-                        goto NextFrame;
-                }
-unpack_next:
-               if (p_env->packing == DO_PACKED) {
-                       if (pack_off > p_env->read_size)
-                               goto NextFrame;
-                       p_packd = p_this_ccw->p_buffer+pack_off;
-                       p_packh = (struct clawph *) p_packd;
-                       if ((p_packh->len == 0) || /* done with this frame? */
-                           (p_packh->flag != 0))
-                               goto NextFrame;
-                       bytes_to_mov = p_packh->len;
-                       pack_off += bytes_to_mov+sizeof(struct clawph);
-                       p++;
-               } else {
-                       bytes_to_mov=p_this_ccw->header.length;
-               }
-                if (privptr->mtc_logical_link<0) {
-
-                /*
-                *  if More-To-Come is set in this frame then we don't know
-                *  length of entire message, and hence have to allocate
-               *  large buffer   */
-
-                /*      We are starting a new envelope  */
-                privptr->mtc_offset=0;
-                        privptr->mtc_logical_link=link_num;
-                }
-
-                if (bytes_to_mov > (MAX_ENVELOPE_SIZE- privptr->mtc_offset) ) {
-                        /*      error     */
-                        privptr->stats.rx_frame_errors++;
-                        goto NextFrame;
-                }
-               if (p_env->packing == DO_PACKED) {
-                       memcpy( privptr->p_mtc_envelope+ privptr->mtc_offset,
-                               p_packd+sizeof(struct clawph), bytes_to_mov);
-
-               } else  {
-                       memcpy( privptr->p_mtc_envelope+ privptr->mtc_offset,
-                               p_this_ccw->p_buffer, bytes_to_mov);
-               }
-                if (mtc_this_frm==0) {
-                        len_of_data=privptr->mtc_offset+bytes_to_mov;
-                        skb=dev_alloc_skb(len_of_data);
-                        if (skb) {
-                                memcpy(skb_put(skb,len_of_data),
-                                       privptr->p_mtc_envelope,
-                                       len_of_data);
-                                skb->dev=dev;
-                               skb_reset_mac_header(skb);
-                                skb->protocol=htons(ETH_P_IP);
-                                skb->ip_summed=CHECKSUM_UNNECESSARY;
-                                privptr->stats.rx_packets++;
-                               privptr->stats.rx_bytes+=len_of_data;
-                                netif_rx(skb);
-                        }
-                        else {
-                               dev_info(p_dev, "Allocating a buffer for"
-                                       " incoming data failed\n");
-                                privptr->stats.rx_dropped++;
-                        }
-                        privptr->mtc_offset=0;
-                        privptr->mtc_logical_link=-1;
-                }
-                else {
-                        privptr->mtc_offset+=bytes_to_mov;
-                }
-               if (p_env->packing == DO_PACKED)
-                       goto unpack_next;
-NextFrame:
-                /*
-                *   Remove ThisCCWblock from active read queue, and add it
-                *   to queue of free blocks to be reused.
-                */
-                i++;
-                p_this_ccw->header.length=0xffff;
-                p_this_ccw->header.opcode=0xff;
-                /*
-                *       add this one to the free queue for later reuse
-                */
-                if (p_first_ccw==NULL) {
-                        p_first_ccw = p_this_ccw;
-                }
-                else {
-                        p_last_ccw->next = p_this_ccw;
-                }
-                p_last_ccw = p_this_ccw;
-                /*
-                *       chain to next block on active read queue
-                */
-                p_this_ccw = privptr->p_read_active_first;
-               CLAW_DBF_TEXT_(4, trace, "rxpkt %d", p);
-        } /* end of while */
-
-        /*      check validity                  */
-
-       CLAW_DBF_TEXT_(4, trace, "rxfrm %d", i);
-        add_claw_reads(dev, p_first_ccw, p_last_ccw);
-        claw_strt_read(dev, LOCK_YES);
-        return;
-}     /*  end of unpack_read   */
-
-/*-------------------------------------------------------------------*
-*       claw_strt_read                                               *
-*                                                                    *
-*--------------------------------------------------------------------*/
-static void
-claw_strt_read (struct net_device *dev, int lock )
-{
-        int        rc = 0;
-        __u32      parm;
-        unsigned long  saveflags = 0;
-       struct claw_privbk *privptr = dev->ml_priv;
-        struct ccwbk*p_ccwbk;
-        struct chbk *p_ch;
-        struct clawh *p_clawh;
-       p_ch = &privptr->channel[READ_CHANNEL];
-
-       CLAW_DBF_TEXT(4, trace, "StRdNter");
-        p_clawh=(struct clawh *)privptr->p_claw_signal_blk;
-        p_clawh->flag=CLAW_IDLE;    /* 0x00 */
-
-        if ((privptr->p_write_active_first!=NULL &&
-             privptr->p_write_active_first->header.flag!=CLAW_PENDING) ||
-            (privptr->p_read_active_first!=NULL &&
-             privptr->p_read_active_first->header.flag!=CLAW_PENDING )) {
-                p_clawh->flag=CLAW_BUSY;    /* 0xff */
-        }
-        if (lock==LOCK_YES) {
-                spin_lock_irqsave(get_ccwdev_lock(p_ch->cdev), saveflags);
-        }
-        if (test_and_set_bit(0, (void *)&p_ch->IO_active) == 0) {
-               CLAW_DBF_TEXT(4, trace, "HotRead");
-                p_ccwbk=privptr->p_read_active_first;
-                parm = (unsigned long) p_ch;
-                rc = ccw_device_start (p_ch->cdev, &p_ccwbk->read, parm,
-                                      0xff, 0);
-                if (rc != 0) {
-                        ccw_check_return_code(p_ch->cdev, rc);
-                }
-        }
-       else {
-               CLAW_DBF_TEXT(2, trace, "ReadAct");
-       }
-
-        if (lock==LOCK_YES) {
-                spin_unlock_irqrestore(get_ccwdev_lock(p_ch->cdev), saveflags);
-        }
-       CLAW_DBF_TEXT(4, trace, "StRdExit");
-        return;
-}       /*    end of claw_strt_read    */
-
-/*-------------------------------------------------------------------*
-*       claw_strt_out_IO                                             *
-*                                                                    *
-*--------------------------------------------------------------------*/
-
-static void
-claw_strt_out_IO( struct net_device *dev )
-{
-        int                    rc = 0;
-        unsigned long          parm;
-        struct claw_privbk     *privptr;
-        struct chbk            *p_ch;
-        struct ccwbk           *p_first_ccw;
-
-       if (!dev) {
-               return;
-       }
-       privptr = (struct claw_privbk *)dev->ml_priv;
-       p_ch = &privptr->channel[WRITE_CHANNEL];
-
-       CLAW_DBF_TEXT(4, trace, "strt_io");
-        p_first_ccw=privptr->p_write_active_first;
-
-        if (p_ch->claw_state == CLAW_STOP)
-                return;
-        if (p_first_ccw == NULL) {
-                return;
-        }
-        if (test_and_set_bit(0, (void *)&p_ch->IO_active) == 0) {
-                parm = (unsigned long) p_ch;
-               CLAW_DBF_TEXT(2, trace, "StWrtIO");
-               rc = ccw_device_start(p_ch->cdev, &p_first_ccw->write, parm,
-                                     0xff, 0);
-                if (rc != 0) {
-                        ccw_check_return_code(p_ch->cdev, rc);
-                }
-        }
-        dev->trans_start = jiffies;
-        return;
-}       /*    end of claw_strt_out_IO    */
-
-/*-------------------------------------------------------------------*
-*       Free write buffers                                           *
-*                                                                    *
-*--------------------------------------------------------------------*/
-
-static void
-claw_free_wrt_buf( struct net_device *dev )
-{
-
-       struct claw_privbk *privptr = (struct claw_privbk *)dev->ml_priv;
-       struct ccwbk*p_this_ccw;
-       struct ccwbk*p_next_ccw;
-
-       CLAW_DBF_TEXT(4, trace, "freewrtb");
-        /*  scan the write queue to free any completed write packets   */
-        p_this_ccw=privptr->p_write_active_first;
-        while ( (p_this_ccw!=NULL) && (p_this_ccw->header.flag!=CLAW_PENDING))
-        {
-                p_next_ccw = p_this_ccw->next;
-                if (((p_next_ccw!=NULL) &&
-                    (p_next_ccw->header.flag!=CLAW_PENDING)) ||
-                    ((p_this_ccw == privptr->p_write_active_last) &&
-                     (p_this_ccw->header.flag!=CLAW_PENDING))) {
-                        /* The next CCW is OK or this is  */
-                       /* the last CCW...free it   @A1A  */
-                        privptr->p_write_active_first=p_this_ccw->next;
-                       p_this_ccw->header.flag=CLAW_PENDING;
-                        p_this_ccw->next=privptr->p_write_free_chain;
-                       privptr->p_write_free_chain=p_this_ccw;
-                        ++privptr->write_free_count;
-                       privptr->stats.tx_bytes+= p_this_ccw->write.count;
-                       p_this_ccw=privptr->p_write_active_first;
-                        privptr->stats.tx_packets++;
-                }
-                else {
-                       break;
-                }
-        }
-        if (privptr->write_free_count!=0) {
-                claw_clearbit_busy(TB_NOBUFFER,dev);
-        }
-        /*   whole chain removed?   */
-        if (privptr->p_write_active_first==NULL) {
-                privptr->p_write_active_last=NULL;
-        }
-       CLAW_DBF_TEXT_(4, trace, "FWC=%d", privptr->write_free_count);
-        return;
-}
-
-/*-------------------------------------------------------------------*
-*       claw free netdevice                                          *
-*                                                                    *
-*--------------------------------------------------------------------*/
-static void
-claw_free_netdevice(struct net_device * dev, int free_dev)
-{
-       struct claw_privbk *privptr;
-
-       CLAW_DBF_TEXT(2, setup, "free_dev");
-       if (!dev)
-               return;
-       CLAW_DBF_TEXT_(2, setup, "%s", dev->name);
-       privptr = dev->ml_priv;
-       if (dev->flags & IFF_RUNNING)
-               claw_release(dev);
-       if (privptr) {
-               privptr->channel[READ_CHANNEL].ndev = NULL;  /* say it's free */
-       }
-       dev->ml_priv = NULL;
-#ifdef MODULE
-       if (free_dev) {
-               free_netdev(dev);
-       }
-#endif
-       CLAW_DBF_TEXT(2, setup, "free_ok");
-}
-
-/**
- * Claw init netdevice
- * Initialize everything of the net device except the name and the
- * channel structs.
- */
-static const struct net_device_ops claw_netdev_ops = {
-       .ndo_open               = claw_open,
-       .ndo_stop               = claw_release,
-       .ndo_get_stats          = claw_stats,
-       .ndo_start_xmit         = claw_tx,
-       .ndo_change_mtu         = claw_change_mtu,
-};
-
-static void
-claw_init_netdevice(struct net_device * dev)
-{
-       CLAW_DBF_TEXT(2, setup, "init_dev");
-       CLAW_DBF_TEXT_(2, setup, "%s", dev->name);
-       dev->mtu = CLAW_DEFAULT_MTU_SIZE;
-       dev->hard_header_len = 0;
-       dev->addr_len = 0;
-       dev->type = ARPHRD_SLIP;
-       dev->tx_queue_len = 1300;
-       dev->flags = IFF_POINTOPOINT | IFF_NOARP;
-       dev->netdev_ops = &claw_netdev_ops;
-       CLAW_DBF_TEXT(2, setup, "initok");
-       return;
-}
-
-/**
- * Init a new channel in the privptr->channel[i].
- *
- * @param cdev  The ccw_device to be added.
- *
- * @return 0 on success, !0 on error.
- */
-static int
-add_channel(struct ccw_device *cdev,int i,struct claw_privbk *privptr)
-{
-       struct chbk *p_ch;
-       struct ccw_dev_id dev_id;
-
-       CLAW_DBF_TEXT_(2, setup, "%s", dev_name(&cdev->dev));
-       privptr->channel[i].flag  = i+1;   /* Read is 1 Write is 2 */
-       p_ch = &privptr->channel[i];
-       p_ch->cdev = cdev;
-       snprintf(p_ch->id, CLAW_ID_SIZE, "cl-%s", dev_name(&cdev->dev));
-       ccw_device_get_id(cdev, &dev_id);
-       p_ch->devno = dev_id.devno;
-       if ((p_ch->irb = kzalloc(sizeof (struct irb),GFP_KERNEL)) == NULL) {
-               return -ENOMEM;
-       }
-       return 0;
-}
-
-
-/**
- *
- * Setup an interface.
- *
- * @param cgdev  Device to be setup.
- *
- * @returns 0 on success, !0 on failure.
- */
-static int
-claw_new_device(struct ccwgroup_device *cgdev)
-{
-       struct claw_privbk *privptr;
-       struct claw_env *p_env;
-       struct net_device *dev;
-       int ret;
-       struct ccw_dev_id dev_id;
-
-       dev_info(&cgdev->dev, "add for %s\n",
-                dev_name(&cgdev->cdev[READ_CHANNEL]->dev));
-       CLAW_DBF_TEXT(2, setup, "new_dev");
-       privptr = dev_get_drvdata(&cgdev->dev);
-       dev_set_drvdata(&cgdev->cdev[READ_CHANNEL]->dev, privptr);
-       dev_set_drvdata(&cgdev->cdev[WRITE_CHANNEL]->dev, privptr);
-       if (!privptr)
-               return -ENODEV;
-       p_env = privptr->p_env;
-       ccw_device_get_id(cgdev->cdev[READ_CHANNEL], &dev_id);
-       p_env->devno[READ_CHANNEL] = dev_id.devno;
-       ccw_device_get_id(cgdev->cdev[WRITE_CHANNEL], &dev_id);
-       p_env->devno[WRITE_CHANNEL] = dev_id.devno;
-       ret = add_channel(cgdev->cdev[0],0,privptr);
-       if (ret == 0)
-               ret = add_channel(cgdev->cdev[1],1,privptr);
-       if (ret != 0) {
-               dev_warn(&cgdev->dev, "Creating a CLAW group device"
-                       " failed with error code %d\n", ret);
-               goto out;
-       }
-       ret = ccw_device_set_online(cgdev->cdev[READ_CHANNEL]);
-       if (ret != 0) {
-               dev_warn(&cgdev->dev,
-                       "Setting the read subchannel online"
-                       " failed with error code %d\n", ret);
-               goto out;
-       }
-       ret = ccw_device_set_online(cgdev->cdev[WRITE_CHANNEL]);
-       if (ret != 0) {
-               dev_warn(&cgdev->dev,
-                       "Setting the write subchannel online "
-                       "failed with error code %d\n", ret);
-               goto out;
-       }
-       dev = alloc_netdev(0, "claw%d", NET_NAME_UNKNOWN, claw_init_netdevice);
-       if (!dev) {
-               dev_warn(&cgdev->dev,
-                       "Activating the CLAW device failed\n");
-               goto out;
-       }
-       dev->ml_priv = privptr;
-       dev_set_drvdata(&cgdev->dev, privptr);
-       dev_set_drvdata(&cgdev->cdev[READ_CHANNEL]->dev, privptr);
-       dev_set_drvdata(&cgdev->cdev[WRITE_CHANNEL]->dev, privptr);
-       /* sysfs magic */
-        SET_NETDEV_DEV(dev, &cgdev->dev);
-       if (register_netdev(dev) != 0) {
-               claw_free_netdevice(dev, 1);
-               CLAW_DBF_TEXT(2, trace, "regfail");
-               goto out;
-       }
-       dev->flags &=~IFF_RUNNING;
-       if (privptr->buffs_alloc == 0) {
-               ret=init_ccw_bk(dev);
-               if (ret !=0) {
-                       unregister_netdev(dev);
-                       claw_free_netdevice(dev,1);
-                       CLAW_DBF_TEXT(2, trace, "ccwmem");
-                       goto out;
-               }
-       }
-       privptr->channel[READ_CHANNEL].ndev = dev;
-       privptr->channel[WRITE_CHANNEL].ndev = dev;
-       privptr->p_env->ndev = dev;
-
-       dev_info(&cgdev->dev, "%s:readsize=%d  writesize=%d "
-               "readbuffer=%d writebuffer=%d read=0x%04x write=0x%04x\n",
-                dev->name, p_env->read_size,
-               p_env->write_size, p_env->read_buffers,
-               p_env->write_buffers, p_env->devno[READ_CHANNEL],
-               p_env->devno[WRITE_CHANNEL]);
-       dev_info(&cgdev->dev, "%s:host_name:%.8s, adapter_name "
-               ":%.8s api_type: %.8s\n",
-                dev->name, p_env->host_name,
-               p_env->adapter_name , p_env->api_type);
-       return 0;
-out:
-       ccw_device_set_offline(cgdev->cdev[1]);
-       ccw_device_set_offline(cgdev->cdev[0]);
-       return -ENODEV;
-}
-
-static void
-claw_purge_skb_queue(struct sk_buff_head *q)
-{
-        struct sk_buff *skb;
-
-       CLAW_DBF_TEXT(4, trace, "purgque");
-        while ((skb = skb_dequeue(q))) {
-                atomic_dec(&skb->users);
-                dev_kfree_skb_any(skb);
-        }
-}
-
-/**
- * Shutdown an interface.
- *
- * @param cgdev  Device to be shut down.
- *
- * @returns 0 on success, !0 on failure.
- */
-static int
-claw_shutdown_device(struct ccwgroup_device *cgdev)
-{
-       struct claw_privbk *priv;
-       struct net_device *ndev;
-       int ret = 0;
-
-       CLAW_DBF_TEXT_(2, setup, "%s", dev_name(&cgdev->dev));
-       priv = dev_get_drvdata(&cgdev->dev);
-       if (!priv)
-               return -ENODEV;
-       ndev = priv->channel[READ_CHANNEL].ndev;
-       if (ndev) {
-               /* Close the device */
-               dev_info(&cgdev->dev, "%s: shutting down\n",
-                       ndev->name);
-               if (ndev->flags & IFF_RUNNING)
-                       ret = claw_release(ndev);
-               ndev->flags &=~IFF_RUNNING;
-               unregister_netdev(ndev);
-               ndev->ml_priv = NULL;  /* cgdev data, not ndev's to free */
-               claw_free_netdevice(ndev, 1);
-               priv->channel[READ_CHANNEL].ndev = NULL;
-               priv->channel[WRITE_CHANNEL].ndev = NULL;
-               priv->p_env->ndev = NULL;
-       }
-       ccw_device_set_offline(cgdev->cdev[1]);
-       ccw_device_set_offline(cgdev->cdev[0]);
-       return ret;
-}
-
-static void
-claw_remove_device(struct ccwgroup_device *cgdev)
-{
-       struct claw_privbk *priv;
-
-       CLAW_DBF_TEXT_(2, setup, "%s", dev_name(&cgdev->dev));
-       priv = dev_get_drvdata(&cgdev->dev);
-       dev_info(&cgdev->dev, " will be removed.\n");
-       if (cgdev->state == CCWGROUP_ONLINE)
-               claw_shutdown_device(cgdev);
-       kfree(priv->p_mtc_envelope);
-       priv->p_mtc_envelope=NULL;
-       kfree(priv->p_env);
-       priv->p_env=NULL;
-       kfree(priv->channel[0].irb);
-       priv->channel[0].irb=NULL;
-       kfree(priv->channel[1].irb);
-       priv->channel[1].irb=NULL;
-       kfree(priv);
-       dev_set_drvdata(&cgdev->dev, NULL);
-       dev_set_drvdata(&cgdev->cdev[READ_CHANNEL]->dev, NULL);
-       dev_set_drvdata(&cgdev->cdev[WRITE_CHANNEL]->dev, NULL);
-       put_device(&cgdev->dev);
-
-       return;
-}
-
-
-/*
- * sysfs attributes
- */
-static ssize_t
-claw_hname_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
-       struct claw_privbk *priv;
-       struct claw_env *  p_env;
-
-       priv = dev_get_drvdata(dev);
-       if (!priv)
-               return -ENODEV;
-       p_env = priv->p_env;
-       return sprintf(buf, "%s\n",p_env->host_name);
-}
-
-static ssize_t
-claw_hname_write(struct device *dev, struct device_attribute *attr,
-        const char *buf, size_t count)
-{
-       struct claw_privbk *priv;
-       struct claw_env *  p_env;
-
-       priv = dev_get_drvdata(dev);
-       if (!priv)
-               return -ENODEV;
-       p_env = priv->p_env;
-       if (count > MAX_NAME_LEN+1)
-               return -EINVAL;
-       memset(p_env->host_name, 0x20, MAX_NAME_LEN);
-       strncpy(p_env->host_name,buf, count);
-       p_env->host_name[count-1] = 0x20;  /* clear extra 0x0a */
-       p_env->host_name[MAX_NAME_LEN] = 0x00;
-       CLAW_DBF_TEXT(2, setup, "HstnSet");
-       CLAW_DBF_TEXT_(2, setup, "%s", p_env->host_name);
-
-       return count;
-}
-
-static DEVICE_ATTR(host_name, 0644, claw_hname_show, claw_hname_write);
-
-static ssize_t
-claw_adname_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
-       struct claw_privbk *priv;
-       struct claw_env *  p_env;
-
-       priv = dev_get_drvdata(dev);
-       if (!priv)
-               return -ENODEV;
-       p_env = priv->p_env;
-       return sprintf(buf, "%s\n", p_env->adapter_name);
-}
-
-static ssize_t
-claw_adname_write(struct device *dev, struct device_attribute *attr,
-        const char *buf, size_t count)
-{
-       struct claw_privbk *priv;
-       struct claw_env *  p_env;
-
-       priv = dev_get_drvdata(dev);
-       if (!priv)
-               return -ENODEV;
-       p_env = priv->p_env;
-       if (count > MAX_NAME_LEN+1)
-               return -EINVAL;
-       memset(p_env->adapter_name, 0x20, MAX_NAME_LEN);
-       strncpy(p_env->adapter_name,buf, count);
-       p_env->adapter_name[count-1] = 0x20; /* clear extra 0x0a */
-       p_env->adapter_name[MAX_NAME_LEN] = 0x00;
-       CLAW_DBF_TEXT(2, setup, "AdnSet");
-       CLAW_DBF_TEXT_(2, setup, "%s", p_env->adapter_name);
-
-       return count;
-}
-
-static DEVICE_ATTR(adapter_name, 0644, claw_adname_show, claw_adname_write);
-
-static ssize_t
-claw_apname_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
-       struct claw_privbk *priv;
-       struct claw_env *  p_env;
-
-       priv = dev_get_drvdata(dev);
-       if (!priv)
-               return -ENODEV;
-       p_env = priv->p_env;
-       return sprintf(buf, "%s\n",
-                      p_env->api_type);
-}
-
-static ssize_t
-claw_apname_write(struct device *dev, struct device_attribute *attr,
-       const char *buf, size_t count)
-{
-       struct claw_privbk *priv;
-       struct claw_env *  p_env;
-
-       priv = dev_get_drvdata(dev);
-       if (!priv)
-               return -ENODEV;
-       p_env = priv->p_env;
-       if (count > MAX_NAME_LEN+1)
-               return -EINVAL;
-       memset(p_env->api_type, 0x20, MAX_NAME_LEN);
-       strncpy(p_env->api_type,buf, count);
-       p_env->api_type[count-1] = 0x20;  /* we get a loose 0x0a */
-       p_env->api_type[MAX_NAME_LEN] = 0x00;
-       if(strncmp(p_env->api_type,WS_APPL_NAME_PACKED,6) == 0) {
-               p_env->read_size=DEF_PACK_BUFSIZE;
-               p_env->write_size=DEF_PACK_BUFSIZE;
-               p_env->packing=PACKING_ASK;
-               CLAW_DBF_TEXT(2, setup, "PACKING");
-       }
-       else {
-               p_env->packing=0;
-               p_env->read_size=CLAW_FRAME_SIZE;
-               p_env->write_size=CLAW_FRAME_SIZE;
-               CLAW_DBF_TEXT(2, setup, "ApiSet");
-       }
-       CLAW_DBF_TEXT_(2, setup, "%s", p_env->api_type);
-       return count;
-}
-
-static DEVICE_ATTR(api_type, 0644, claw_apname_show, claw_apname_write);
-
-static ssize_t
-claw_wbuff_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
-       struct claw_privbk *priv;
-       struct claw_env * p_env;
-
-       priv = dev_get_drvdata(dev);
-       if (!priv)
-               return -ENODEV;
-       p_env = priv->p_env;
-       return sprintf(buf, "%d\n", p_env->write_buffers);
-}
-
-static ssize_t
-claw_wbuff_write(struct device *dev, struct device_attribute *attr,
-       const char *buf, size_t count)
-{
-       struct claw_privbk *priv;
-       struct claw_env *  p_env;
-       int nnn,max;
-
-       priv = dev_get_drvdata(dev);
-       if (!priv)
-               return -ENODEV;
-       p_env = priv->p_env;
-       sscanf(buf, "%i", &nnn);
-       if (p_env->packing) {
-               max = 64;
-       }
-       else {
-               max = 512;
-       }
-       if ((nnn > max ) || (nnn < 2))
-               return -EINVAL;
-       p_env->write_buffers = nnn;
-       CLAW_DBF_TEXT(2, setup, "Wbufset");
-       CLAW_DBF_TEXT_(2, setup, "WB=%d", p_env->write_buffers);
-       return count;
-}
-
-static DEVICE_ATTR(write_buffer, 0644, claw_wbuff_show, claw_wbuff_write);
-
-static ssize_t
-claw_rbuff_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
-       struct claw_privbk *priv;
-       struct claw_env *  p_env;
-
-       priv = dev_get_drvdata(dev);
-       if (!priv)
-               return -ENODEV;
-       p_env = priv->p_env;
-       return sprintf(buf, "%d\n", p_env->read_buffers);
-}
-
-static ssize_t
-claw_rbuff_write(struct device *dev, struct device_attribute *attr,
-       const char *buf, size_t count)
-{
-       struct claw_privbk *priv;
-       struct claw_env *p_env;
-       int nnn,max;
-
-       priv = dev_get_drvdata(dev);
-       if (!priv)
-               return -ENODEV;
-       p_env = priv->p_env;
-       sscanf(buf, "%i", &nnn);
-       if (p_env->packing) {
-               max = 64;
-       }
-       else {
-               max = 512;
-       }
-       if ((nnn > max ) || (nnn < 2))
-               return -EINVAL;
-       p_env->read_buffers = nnn;
-       CLAW_DBF_TEXT(2, setup, "Rbufset");
-       CLAW_DBF_TEXT_(2, setup, "RB=%d", p_env->read_buffers);
-       return count;
-}
-static DEVICE_ATTR(read_buffer, 0644, claw_rbuff_show, claw_rbuff_write);
-
-static struct attribute *claw_attr[] = {
-       &dev_attr_read_buffer.attr,
-       &dev_attr_write_buffer.attr,
-       &dev_attr_adapter_name.attr,
-       &dev_attr_api_type.attr,
-       &dev_attr_host_name.attr,
-       NULL,
-};
-static struct attribute_group claw_attr_group = {
-       .attrs = claw_attr,
-};
-static const struct attribute_group *claw_attr_groups[] = {
-       &claw_attr_group,
-       NULL,
-};
-static const struct device_type claw_devtype = {
-       .name = "claw",
-       .groups = claw_attr_groups,
-};
-
-/*----------------------------------------------------------------*
- *   claw_probe                                                  *
- *     this function is called for each CLAW device.             *
- *----------------------------------------------------------------*/
-static int claw_probe(struct ccwgroup_device *cgdev)
-{
-       struct claw_privbk *privptr = NULL;
-
-       CLAW_DBF_TEXT(2, setup, "probe");
-       if (!get_device(&cgdev->dev))
-               return -ENODEV;
-       privptr = kzalloc(sizeof(struct claw_privbk), GFP_KERNEL);
-       dev_set_drvdata(&cgdev->dev, privptr);
-       if (privptr == NULL) {
-               probe_error(cgdev);
-               put_device(&cgdev->dev);
-               CLAW_DBF_TEXT_(2, setup, "probex%d", -ENOMEM);
-               return -ENOMEM;
-       }
-       privptr->p_mtc_envelope = kzalloc(MAX_ENVELOPE_SIZE, GFP_KERNEL);
-       privptr->p_env = kzalloc(sizeof(struct claw_env), GFP_KERNEL);
-       if ((privptr->p_mtc_envelope == NULL) || (privptr->p_env == NULL)) {
-               probe_error(cgdev);
-               put_device(&cgdev->dev);
-               CLAW_DBF_TEXT_(2, setup, "probex%d", -ENOMEM);
-               return -ENOMEM;
-       }
-       memcpy(privptr->p_env->adapter_name, WS_NAME_NOT_DEF, 8);
-       memcpy(privptr->p_env->host_name, WS_NAME_NOT_DEF, 8);
-       memcpy(privptr->p_env->api_type, WS_NAME_NOT_DEF, 8);
-       privptr->p_env->packing = 0;
-       privptr->p_env->write_buffers = 5;
-       privptr->p_env->read_buffers = 5;
-       privptr->p_env->read_size = CLAW_FRAME_SIZE;
-       privptr->p_env->write_size = CLAW_FRAME_SIZE;
-       privptr->p_env->p_priv = privptr;
-       cgdev->cdev[0]->handler = claw_irq_handler;
-       cgdev->cdev[1]->handler = claw_irq_handler;
-       cgdev->dev.type = &claw_devtype;
-       CLAW_DBF_TEXT(2, setup, "prbext 0");
-
-       return 0;
-}  /*  end of claw_probe       */
-
-/*--------------------------------------------------------------------*
-*    claw_init  and cleanup                                           *
-*---------------------------------------------------------------------*/
-
-static void __exit claw_cleanup(void)
-{
-       ccwgroup_driver_unregister(&claw_group_driver);
-       ccw_driver_unregister(&claw_ccw_driver);
-       root_device_unregister(claw_root_dev);
-       claw_unregister_debug_facility();
-       pr_info("Driver unloaded\n");
-}
-
-/**
- * Initialize module.
- * This is called just after the module is loaded.
- *
- * @return 0 on success, !0 on error.
- */
-static int __init claw_init(void)
-{
-       int ret = 0;
-
-       pr_info("Loading %s\n", version);
-       ret = claw_register_debug_facility();
-       if (ret) {
-               pr_err("Registering with the S/390 debug feature"
-                       " failed with error code %d\n", ret);
-               goto out_err;
-       }
-       CLAW_DBF_TEXT(2, setup, "init_mod");
-       claw_root_dev = root_device_register("claw");
-       ret = PTR_ERR_OR_ZERO(claw_root_dev);
-       if (ret)
-               goto register_err;
-       ret = ccw_driver_register(&claw_ccw_driver);
-       if (ret)
-               goto ccw_err;
-       claw_group_driver.driver.groups = claw_drv_attr_groups;
-       ret = ccwgroup_driver_register(&claw_group_driver);
-       if (ret)
-               goto ccwgroup_err;
-       return 0;
-
-ccwgroup_err:
-       ccw_driver_unregister(&claw_ccw_driver);
-ccw_err:
-       root_device_unregister(claw_root_dev);
-register_err:
-       CLAW_DBF_TEXT(2, setup, "init_bad");
-       claw_unregister_debug_facility();
-out_err:
-       pr_err("Initializing the claw device driver failed\n");
-       return ret;
-}
-
-module_init(claw_init);
-module_exit(claw_cleanup);
-
-MODULE_AUTHOR("Andy Richter <richtera@us.ibm.com>");
-MODULE_DESCRIPTION("Linux for System z CLAW Driver\n" \
-                       "Copyright IBM Corp. 2000, 2008\n");
-MODULE_LICENSE("GPL");
diff --git a/drivers/s390/net/claw.h b/drivers/s390/net/claw.h
deleted file mode 100644 (file)
index 3339b9b..0000000
+++ /dev/null
@@ -1,348 +0,0 @@
-/*******************************************************
-*  Define constants                                    *
-*                                                      *
-********************************************************/
-
-/*-----------------------------------------------------*
-*     CCW command codes for CLAW protocol              *
-*------------------------------------------------------*/
-
-#define CCW_CLAW_CMD_WRITE           0x01      /* write - not including link */
-#define CCW_CLAW_CMD_READ            0x02      /* read */
-#define CCW_CLAW_CMD_NOP             0x03      /* NOP */
-#define CCW_CLAW_CMD_SENSE           0x04      /* Sense */
-#define CCW_CLAW_CMD_SIGNAL_SMOD     0x05      /* Signal Status Modifier */
-#define CCW_CLAW_CMD_TIC             0x08      /* TIC */
-#define CCW_CLAW_CMD_READHEADER      0x12      /* read header data */
-#define CCW_CLAW_CMD_READFF          0x22      /* read an FF */
-#define CCW_CLAW_CMD_SENSEID         0xe4      /* Sense ID */
-
-
-/*-----------------------------------------------------*
-*    CLAW Unique constants                             *
-*------------------------------------------------------*/
-
-#define MORE_to_COME_FLAG       0x04   /* OR with write CCW in case of m-t-c */
-#define CLAW_IDLE               0x00   /* flag to indicate CLAW is idle */
-#define CLAW_BUSY               0xff   /* flag to indicate CLAW is busy */
-#define CLAW_PENDING            0x00   /* flag to indicate i/o is pending */
-#define CLAW_COMPLETE           0xff   /* flag to indicate i/o completed */
-
-/*-----------------------------------------------------*
-*     CLAW control command code                        *
-*------------------------------------------------------*/
-
-#define SYSTEM_VALIDATE_REQUEST   0x01  /* System Validate request */
-#define SYSTEM_VALIDATE_RESPONSE  0x02  /* System Validate response */
-#define CONNECTION_REQUEST        0x21  /* Connection request */
-#define CONNECTION_RESPONSE       0x22  /* Connection response */
-#define CONNECTION_CONFIRM        0x23  /* Connection confirm */
-#define DISCONNECT                0x24  /* Disconnect */
-#define CLAW_ERROR                0x41  /* CLAW error message */
-#define CLAW_VERSION_ID           2     /* CLAW version ID */
-
-/*-----------------------------------------------------*
-*  CLAW adater sense bytes                             *
-*------------------------------------------------------*/
-
-#define CLAW_ADAPTER_SENSE_BYTE 0x41   /* Stop command issued to adapter */
-
-/*-----------------------------------------------------*
-*      CLAW control command return codes               *
-*------------------------------------------------------*/
-
-#define CLAW_RC_NAME_MISMATCH       166  /*  names do not match */
-#define CLAW_RC_WRONG_VERSION       167  /*  wrong CLAW version number */
-#define CLAW_RC_HOST_RCV_TOO_SMALL  180  /*  Host maximum receive is   */
-                                        /*  less than Linux on zSeries*/
-                                         /*  transmit size             */
-
-/*-----------------------------------------------------*
-*      CLAW Constants application name                 *
-*------------------------------------------------------*/
-
-#define HOST_APPL_NAME          "TCPIP   "
-#define WS_APPL_NAME_IP_LINK    "TCPIP   "
-#define WS_APPL_NAME_IP_NAME   "IP      "
-#define WS_APPL_NAME_API_LINK   "API     "
-#define WS_APPL_NAME_PACKED     "PACKED  "
-#define WS_NAME_NOT_DEF         "NOT_DEF "
-#define PACKING_ASK            1
-#define PACK_SEND              2
-#define DO_PACKED              3
-
-#define MAX_ENVELOPE_SIZE       65536
-#define CLAW_DEFAULT_MTU_SIZE   4096
-#define DEF_PACK_BUFSIZE       32768
-#define READ_CHANNEL           0
-#define WRITE_CHANNEL          1
-
-#define TB_TX                   0          /* sk buffer handling in process  */
-#define TB_STOP                 1          /* network device stop in process */
-#define TB_RETRY                2          /* retry in process               */
-#define TB_NOBUFFER             3          /* no buffer on free queue        */
-#define CLAW_MAX_LINK_ID        1
-#define CLAW_MAX_DEV            256        /*      max claw devices          */
-#define MAX_NAME_LEN            8          /* host name, adapter name length */
-#define CLAW_FRAME_SIZE         4096
-#define CLAW_ID_SIZE           20+3
-
-/* state machine codes used in claw_irq_handler */
-
-#define CLAW_STOP                0
-#define CLAW_START_HALT_IO       1
-#define CLAW_START_SENSEID       2
-#define CLAW_START_READ          3
-#define CLAW_START_WRITE         4
-
-/*-----------------------------------------------------*
-*    Lock flag                                         *
-*------------------------------------------------------*/
-#define LOCK_YES             0
-#define LOCK_NO              1
-
-/*-----------------------------------------------------*
-*    DBF Debug macros                                  *
-*------------------------------------------------------*/
-#define CLAW_DBF_TEXT(level, name, text) \
-       do { \
-               debug_text_event(claw_dbf_##name, level, text); \
-       } while (0)
-
-#define CLAW_DBF_HEX(level,name,addr,len) \
-do { \
-       debug_event(claw_dbf_##name,level,(void*)(addr),len); \
-} while (0)
-
-#define CLAW_DBF_TEXT_(level,name,text...) \
-       do { \
-               if (debug_level_enabled(claw_dbf_##name, level)) { \
-                       sprintf(debug_buffer, text); \
-                       debug_text_event(claw_dbf_##name, level, \
-                                               debug_buffer); \
-               } \
-       } while (0)
-
-/**
- * Enum for classifying detected devices.
- */
-enum claw_channel_types {
-       /* Device is not a channel  */
-       claw_channel_type_none,
-
-       /* Device is a CLAW channel device */
-       claw_channel_type_claw
-};
-
-
-/*******************************************************
-*  Define Control Blocks                               *
-*                                                      *
-********************************************************/
-
-/*------------------------------------------------------*/
-/*     CLAW header                                      */
-/*------------------------------------------------------*/
-
-struct clawh {
-        __u16  length;     /* length of data read by preceding read CCW */
-        __u8   opcode;     /* equivalent read CCW */
-        __u8   flag;       /* flag of FF to indicate read was completed */
-};
-
-/*------------------------------------------------------*/
-/*     CLAW Packing header   4 bytes                    */
-/*------------------------------------------------------*/
-struct clawph {
-       __u16 len;      /* Length of Packed Data Area   */
-       __u8  flag;     /* Reserved not used            */
-       __u8  link_num; /* Link ID                      */
-};
-
-/*------------------------------------------------------*/
-/*     CLAW Ending struct ccwbk                         */
-/*------------------------------------------------------*/
-struct endccw {
-       __u32     real;            /* real address of this block */
-       __u8      write1;          /* write 1 is active */
-        __u8      read1;           /* read 1 is active  */
-        __u16     reserved;        /* reserved for future use */
-        struct ccw1    write1_nop1;
-        struct ccw1    write1_nop2;
-        struct ccw1    write2_nop1;
-        struct ccw1    write2_nop2;
-        struct ccw1    read1_nop1;
-        struct ccw1    read1_nop2;
-        struct ccw1    read2_nop1;
-        struct ccw1    read2_nop2;
-};
-
-/*------------------------------------------------------*/
-/*     CLAW struct ccwbk                                       */
-/*------------------------------------------------------*/
-struct ccwbk {
-        void   *next;        /* pointer to next ccw block */
-        __u32     real;         /* real address of this ccw */
-        void      *p_buffer;    /* virtual address of data */
-        struct clawh     header;       /* claw header */
-        struct ccw1    write;   /* write CCW    */
-        struct ccw1    w_read_FF; /* read FF */
-        struct ccw1    w_TIC_1;        /* TIC */
-        struct ccw1    read;         /* read CCW  */
-        struct ccw1    read_h;        /* read header */
-        struct ccw1    signal;       /* signal SMOD  */
-        struct ccw1    r_TIC_1;        /* TIC1 */
-        struct ccw1    r_read_FF;      /* read FF  */
-        struct ccw1    r_TIC_2;        /* TIC2 */
-};
-
-/*------------------------------------------------------*/
-/*     CLAW control block                               */
-/*------------------------------------------------------*/
-struct clawctl {
-        __u8    command;      /* control command */
-        __u8    version;      /* CLAW protocol version */
-        __u8    linkid;       /* link ID   */
-        __u8    correlator;   /* correlator */
-        __u8    rc;           /* return code */
-        __u8    reserved1;    /* reserved */
-        __u8    reserved2;    /* reserved */
-        __u8    reserved3;    /* reserved */
-        __u8    data[24];     /* command specific fields */
-};
-
-/*------------------------------------------------------*/
-/*     Data for SYSTEMVALIDATE command                  */
-/*------------------------------------------------------*/
-struct sysval  {
-        char    WS_name[8];        /* Workstation System name  */
-        char    host_name[8];      /* Host system name     */
-        __u16   read_frame_size;   /* read frame size */
-        __u16   write_frame_size;  /* write frame size */
-        __u8    reserved[4];       /* reserved */
-};
-
-/*------------------------------------------------------*/
-/*     Data for Connect command                         */
-/*------------------------------------------------------*/
-struct conncmd  {
-        char     WS_name[8];       /* Workstation application name  */
-        char     host_name[8];     /* Host application name      */
-        __u16    reserved1[2];     /* read frame size */
-        __u8     reserved2[4];     /* reserved  */
-};
-
-/*------------------------------------------------------*/
-/*     Data for CLAW error                              */
-/*------------------------------------------------------*/
-struct clawwerror  {
-        char      reserved1[8];   /* reserved */
-        char      reserved2[8];   /* reserved  */
-        char      reserved3[8];   /* reserved  */
-};
-
-/*------------------------------------------------------*/
-/*     Data buffer for CLAW                             */
-/*------------------------------------------------------*/
-struct clawbuf  {
-       char      buffer[MAX_ENVELOPE_SIZE];   /* data buffer */
-};
-
-/*------------------------------------------------------*/
-/*     Channel control block for read and write channel */
-/*------------------------------------------------------*/
-
-struct chbk {
-        unsigned int        devno;
-        int                 irq;
-       char                id[CLAW_ID_SIZE];
-       __u32               IO_active;
-        __u8                claw_state;
-        struct irb          *irb;
-               struct ccw_device   *cdev;  /* pointer to the channel device */
-       struct net_device   *ndev;
-        wait_queue_head_t   wait;
-        struct tasklet_struct    tasklet;
-        struct timer_list   timer;
-        unsigned long       flag_a;    /* atomic flags */
-#define CLAW_BH_ACTIVE      0
-        unsigned long       flag_b;    /* atomic flags */
-#define CLAW_WRITE_ACTIVE   0
-        __u8                last_dstat;
-        __u8                flag;
-       struct sk_buff_head collect_queue;
-       spinlock_t collect_lock;
-#define CLAW_WRITE      0x02      /* - Set if this is a write channel */
-#define CLAW_READ      0x01      /* - Set if this is a read channel  */
-#define CLAW_TIMER      0x80      /* - Set if timer made the wake_up  */
-};
-
-/*--------------------------------------------------------------*
-*           CLAW  environment block                             *
-*---------------------------------------------------------------*/
-
-struct claw_env {
-        unsigned int            devno[2];       /* device number */
-        char                    host_name[9];   /* Host name */
-        char                    adapter_name [9]; /* adapter name */
-        char                    api_type[9];    /* TCPIP, API or PACKED */
-        void                    *p_priv;        /* privptr */
-        __u16                   read_buffers;   /* read buffer number */
-        __u16                   write_buffers;  /* write buffer number */
-        __u16                   read_size;      /* read buffer size */
-        __u16                   write_size;     /* write buffer size */
-        __u16                   dev_id;         /* device ident */
-       __u8                    packing;        /* are we packing? */
-        __u8                    in_use;         /* device active flag */
-        struct net_device       *ndev;         /* backward ptr to the net dev*/
-};
-
-/*--------------------------------------------------------------*
-*           CLAW  main control block                            *
-*---------------------------------------------------------------*/
-
-struct claw_privbk {
-        void *p_buff_ccw;
-        __u32      p_buff_ccw_num;
-        void  *p_buff_read;
-        __u32      p_buff_read_num;
-        __u32      p_buff_pages_perread;
-        void  *p_buff_write;
-        __u32      p_buff_write_num;
-        __u32      p_buff_pages_perwrite;
-        long       active_link_ID;           /* Active logical link ID */
-        struct ccwbk *p_write_free_chain;     /* pointer to free ccw chain */
-        struct ccwbk *p_write_active_first;   /* ptr to the first write ccw */
-        struct ccwbk *p_write_active_last;    /* ptr to the last write ccw */
-        struct ccwbk *p_read_active_first;    /* ptr to the first read ccw */
-        struct ccwbk *p_read_active_last;     /* ptr to the last read ccw */
-        struct endccw *p_end_ccw;              /*ptr to ending ccw */
-        struct ccwbk *p_claw_signal_blk;      /* ptr to signal block */
-        __u32      write_free_count;       /* number of free bufs for write */
-       struct     net_device_stats  stats; /*   device status    */
-        struct chbk channel[2];            /* Channel control blocks */
-        __u8       mtc_skipping;
-        int        mtc_offset;
-        int        mtc_logical_link;
-        void       *p_mtc_envelope;
-       struct     sk_buff      *pk_skb;        /* packing buffer    */
-       int        pk_cnt;
-        struct clawctl ctl_bk;
-        struct claw_env *p_env;
-        __u8       system_validate_comp;
-        __u8       release_pend;
-        __u8      checksum_received_ip_pkts;
-       __u8      buffs_alloc;
-        struct endccw  end_ccw;
-        unsigned long  tbusy;
-
-};
-
-
-/************************************************************/
-/* define global constants                                  */
-/************************************************************/
-
-#define CCWBK_SIZE sizeof(struct ccwbk)
-
-