text: /*
   *    Copyright IBM Corp. 2007, 2009
   *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
   *		 Frank Pavlic <fpavlic@de.ibm.com>,
   *		 Thomas Spatzier <tspat@de.ibm.com>,
   *		 Frank Blaschka <frank.blaschka@de.ibm.com>
   */
  
  #define KMSG_COMPONENT "qeth"
  #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
  
  #include <linux/module.h>
  #include <linux/moduleparam.h>
  #include <linux/string.h>
  #include <linux/errno.h>
  #include <linux/kernel.h>
  #include <linux/ip.h>
  #include <linux/tcp.h>
  #include <linux/mii.h>
  #include <linux/kthread.h>
  #include <linux/slab.h>
  #include <net/iucv/af_iucv.h>
  #include <net/dsfield.h>
  
  #include <asm/ebcdic.h>
  #include <asm/chpid.h>
  #include <asm/io.h>
  #include <asm/sysinfo.h>
  #include <asm/compat.h>
  
  #include "qeth_core.h"
  
  struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
  	/* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
  	/*                   N  P  A    M  L  V                      H  */
  	[QETH_DBF_SETUP] = {"qeth_setup",
  				8, 1,   8, 5, &debug_hex_ascii_view, NULL},
  	[QETH_DBF_MSG]	 = {"qeth_msg", 8, 1, 11 * sizeof(long), 3,
  			    &debug_sprintf_view, NULL},
  	[QETH_DBF_CTRL]  = {"qeth_control",
  		8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL},
  };
  EXPORT_SYMBOL_GPL(qeth_dbf);
  
  struct qeth_card_list_struct qeth_core_card_list;
  EXPORT_SYMBOL_GPL(qeth_core_card_list);
  struct kmem_cache *qeth_core_header_cache;
  EXPORT_SYMBOL_GPL(qeth_core_header_cache);
  static struct kmem_cache *qeth_qdio_outbuf_cache;
  
  static struct device *qeth_core_root_dev;
  static unsigned int known_devices[][6] = QETH_MODELLIST_ARRAY;
  static struct lock_class_key qdio_out_skb_queue_key;
  static struct mutex qeth_mod_mutex;
  
  static void qeth_send_control_data_cb(struct qeth_channel *,
  			struct qeth_cmd_buffer *);
  static int qeth_issue_next_read(struct qeth_card *);
  static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *);
  static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32);
  static void qeth_free_buffer_pool(struct qeth_card *);
  static int qeth_qdio_establish(struct qeth_card *);
  static void qeth_free_qdio_buffers(struct qeth_card *);
  static void qeth_notify_skbs(struct qeth_qdio_out_q *queue,
  		struct qeth_qdio_out_buffer *buf,
  		enum iucv_tx_notify notification);
  static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf);
  static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
  		struct qeth_qdio_out_buffer *buf,
  		enum qeth_qdio_buffer_states newbufstate);
  static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *, int);
  
  struct workqueue_struct *qeth_wq;
  EXPORT_SYMBOL_GPL(qeth_wq);
  
  int qeth_card_hw_is_reachable(struct qeth_card *card)
  {
  	return (card->state == CARD_STATE_SOFTSETUP) ||
  		(card->state == CARD_STATE_UP);
  }
  EXPORT_SYMBOL_GPL(qeth_card_hw_is_reachable);
  
  static void qeth_close_dev_handler(struct work_struct *work)
  {
  	struct qeth_card *card;
  
  	card = container_of(work, struct qeth_card, close_dev_work);
  	QETH_CARD_TEXT(card, 2, "cldevhdl");
  	rtnl_lock();
  	dev_close(card->dev);
  	rtnl_unlock();
  	ccwgroup_set_offline(card->gdev);
  }
  
  void qeth_close_dev(struct qeth_card *card)
  {
  	QETH_CARD_TEXT(card, 2, "cldevsubm");
  	queue_work(qeth_wq, &card->close_dev_work);
  }
  EXPORT_SYMBOL_GPL(qeth_close_dev);
  
  static inline const char *qeth_get_cardname(struct qeth_card *card)
  {
  	if (card->info.guestlan) {
  		switch (card->info.type) {
  		case QETH_CARD_TYPE_OSD:
  			return " Virtual NIC QDIO";
  		case QETH_CARD_TYPE_IQD:
  			return " Virtual NIC Hiper";
  		case QETH_CARD_TYPE_OSM:
  			return " Virtual NIC QDIO - OSM";
  		case QETH_CARD_TYPE_OSX:
  			return " Virtual NIC QDIO - OSX";
  		default:
  			return " unknown";
  		}
  	} else {
  		switch (card->info.type) {
  		case QETH_CARD_TYPE_OSD:
  			return " OSD Express";
  		case QETH_CARD_TYPE_IQD:
  			return " HiperSockets";
  		case QETH_CARD_TYPE_OSN:
  			return " OSN QDIO";
  		case QETH_CARD_TYPE_OSM:
  			return " OSM QDIO";
  		case QETH_CARD_TYPE_OSX:
  			return " OSX QDIO";
  		default:
  			return " unknown";
  		}
  	}
  	return " n/a";
  }
  
  /* max length to be returned: 14 */
  const char *qeth_get_cardname_short(struct qeth_card *card)
  {
  	if (card->info.guestlan) {
  		switch (card->info.type) {
  		case QETH_CARD_TYPE_OSD:
  			return "Virt.NIC QDIO";
  		case QETH_CARD_TYPE_IQD:
  			return "Virt.NIC Hiper";
  		case QETH_CARD_TYPE_OSM:
  			return "Virt.NIC OSM";
  		case QETH_CARD_TYPE_OSX:
  			return "Virt.NIC OSX";
  		default:
  			return "unknown";
  		}
  	} else {
  		switch (card->info.type) {
  		case QETH_CARD_TYPE_OSD:
  			switch (card->info.link_type) {
  			case QETH_LINK_TYPE_FAST_ETH:
  				return "OSD_100";
  			case QETH_LINK_TYPE_HSTR:
  				return "HSTR";
  			case QETH_LINK_TYPE_GBIT_ETH:
  				return "OSD_1000";
  			case QETH_LINK_TYPE_10GBIT_ETH:
  				return "OSD_10GIG";
  			case QETH_LINK_TYPE_LANE_ETH100:
  				return "OSD_FE_LANE";
  			case QETH_LINK_TYPE_LANE_TR:
  				return "OSD_TR_LANE";
  			case QETH_LINK_TYPE_LANE_ETH1000:
  				return "OSD_GbE_LANE";
  			case QETH_LINK_TYPE_LANE:
  				return "OSD_ATM_LANE";
  			default:
  				return "OSD_Express";
  			}
  		case QETH_CARD_TYPE_IQD:
  			return "HiperSockets";
  		case QETH_CARD_TYPE_OSN:
  			return "OSN";
  		case QETH_CARD_TYPE_OSM:
  			return "OSM_1000";
  		case QETH_CARD_TYPE_OSX:
  			return "OSX_10GIG";
  		default:
  			return "unknown";
  		}
  	}
  	return "n/a";
  }
  
  void qeth_set_recovery_task(struct qeth_card *card)
  {
  	card->recovery_task = current;
  }
  EXPORT_SYMBOL_GPL(qeth_set_recovery_task);
  
  void qeth_clear_recovery_task(struct qeth_card *card)
  {
  	card->recovery_task = NULL;
  }
  EXPORT_SYMBOL_GPL(qeth_clear_recovery_task);
  
  static bool qeth_is_recovery_task(const struct qeth_card *card)
  {
  	return card->recovery_task == current;
  }
  
  void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
  			 int clear_start_mask)
  {
  	unsigned long flags;
  
  	spin_lock_irqsave(&card->thread_mask_lock, flags);
  	card->thread_allowed_mask = threads;
  	if (clear_start_mask)
  		card->thread_start_mask &= threads;
  	spin_unlock_irqrestore(&card->thread_mask_lock, flags);
  	wake_up(&card->wait_q);
  }
  EXPORT_SYMBOL_GPL(qeth_set_allowed_threads);
  
  int qeth_threads_running(struct qeth_card *card, unsigned long threads)
  {
  	unsigned long flags;
  	int rc = 0;
  
  	spin_lock_irqsave(&card->thread_mask_lock, flags);
  	rc = (card->thread_running_mask & threads);
  	spin_unlock_irqrestore(&card->thread_mask_lock, flags);
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_threads_running);
  
  int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
  {
  	if (qeth_is_recovery_task(card))
  		return 0;
  	return wait_event_interruptible(card->wait_q,
  			qeth_threads_running(card, threads) == 0);
  }
  EXPORT_SYMBOL_GPL(qeth_wait_for_threads);
  
  void qeth_clear_working_pool_list(struct qeth_card *card)
  {
  	struct qeth_buffer_pool_entry *pool_entry, *tmp;
  
  	QETH_CARD_TEXT(card, 5, "clwrklst");
  	list_for_each_entry_safe(pool_entry, tmp,
  			    &card->qdio.in_buf_pool.entry_list, list){
  			list_del(&pool_entry->list);
  	}
  }
  EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list);
  
  static int qeth_alloc_buffer_pool(struct qeth_card *card)
  {
  	struct qeth_buffer_pool_entry *pool_entry;
  	void *ptr;
  	int i, j;
  
  	QETH_CARD_TEXT(card, 5, "alocpool");
  	for (i = 0; i < card->qdio.init_pool.buf_count; ++i) {
  		pool_entry = kzalloc(sizeof(*pool_entry), GFP_KERNEL);
  		if (!pool_entry) {
  			qeth_free_buffer_pool(card);
  			return -ENOMEM;
  		}
  		for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) {
  			ptr = (void *) __get_free_page(GFP_KERNEL);
  			if (!ptr) {
  				while (j > 0)
  					free_page((unsigned long)
  						  pool_entry->elements[--j]);
  				kfree(pool_entry);
  				qeth_free_buffer_pool(card);
  				return -ENOMEM;
  			}
  			pool_entry->elements[j] = ptr;
  		}
  		list_add(&pool_entry->init_list,
  			 &card->qdio.init_pool.entry_list);
  	}
  	return 0;
  }
  
  int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
  {
  	QETH_CARD_TEXT(card, 2, "realcbp");
  
  	if ((card->state != CARD_STATE_DOWN) &&
  	    (card->state != CARD_STATE_RECOVER))
  		return -EPERM;
  
  	/* TODO: steel/add buffers from/to a running card's buffer pool (?) */
  	qeth_clear_working_pool_list(card);
  	qeth_free_buffer_pool(card);
  	card->qdio.in_buf_pool.buf_count = bufcnt;
  	card->qdio.init_pool.buf_count = bufcnt;
  	return qeth_alloc_buffer_pool(card);
  }
  EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool);
  
  static void qeth_free_qdio_queue(struct qeth_qdio_q *q)
  {
  	if (!q)
  		return;
  
  	qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q);
  	kfree(q);
  }
  
  static struct qeth_qdio_q *qeth_alloc_qdio_queue(void)
  {
  	struct qeth_qdio_q *q = kzalloc(sizeof(*q), GFP_KERNEL);
  	int i;
  
  	if (!q)
  		return NULL;
  
  	if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) {
  		kfree(q);
  		return NULL;
  	}
  
  	for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
  		q->bufs[i].buffer = q->qdio_bufs[i];
  
  	QETH_DBF_HEX(SETUP, 2, &q, sizeof(void *));
  	return q;
  }
  
  static inline int qeth_cq_init(struct qeth_card *card)
  {
  	int rc;
  
  	if (card->options.cq == QETH_CQ_ENABLED) {
  		QETH_DBF_TEXT(SETUP, 2, "cqinit");
  		qdio_reset_buffers(card->qdio.c_q->qdio_bufs,
  				   QDIO_MAX_BUFFERS_PER_Q);
  		card->qdio.c_q->next_buf_to_init = 127;
  		rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT,
  			     card->qdio.no_in_queues - 1, 0,
  			     127);
  		if (rc) {
  			QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
  			goto out;
  		}
  	}
  	rc = 0;
  out:
  	return rc;
  }
  
  static inline int qeth_alloc_cq(struct qeth_card *card)
  {
  	int rc;
  
  	if (card->options.cq == QETH_CQ_ENABLED) {
  		int i;
  		struct qdio_outbuf_state *outbuf_states;
  
  		QETH_DBF_TEXT(SETUP, 2, "cqon");
  		card->qdio.c_q = qeth_alloc_qdio_queue();
  		if (!card->qdio.c_q) {
  			rc = -1;
  			goto kmsg_out;
  		}
  		card->qdio.no_in_queues = 2;
  		card->qdio.out_bufstates =
  			kzalloc(card->qdio.no_out_queues *
  				QDIO_MAX_BUFFERS_PER_Q *
  				sizeof(struct qdio_outbuf_state), GFP_KERNEL);
  		outbuf_states = card->qdio.out_bufstates;
  		if (outbuf_states == NULL) {
  			rc = -1;
  			goto free_cq_out;
  		}
  		for (i = 0; i < card->qdio.no_out_queues; ++i) {
  			card->qdio.out_qs[i]->bufstates = outbuf_states;
  			outbuf_states += QDIO_MAX_BUFFERS_PER_Q;
  		}
  	} else {
  		QETH_DBF_TEXT(SETUP, 2, "nocq");
  		card->qdio.c_q = NULL;
  		card->qdio.no_in_queues = 1;
  	}
  	QETH_DBF_TEXT_(SETUP, 2, "iqc%d", card->qdio.no_in_queues);
  	rc = 0;
  out:
  	return rc;
  free_cq_out:
  	qeth_free_qdio_queue(card->qdio.c_q);
  	card->qdio.c_q = NULL;
  kmsg_out:
  	dev_err(&card->gdev->dev, "Failed to create completion queue\n");
  	goto out;
  }
  
  static inline void qeth_free_cq(struct qeth_card *card)
  {
  	if (card->qdio.c_q) {
  		--card->qdio.no_in_queues;
  		qeth_free_qdio_queue(card->qdio.c_q);
  		card->qdio.c_q = NULL;
  	}
  	kfree(card->qdio.out_bufstates);
  	card->qdio.out_bufstates = NULL;
  }
  
  static inline enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15,
  	int delayed) {
  	enum iucv_tx_notify n;
  
  	switch (sbalf15) {
  	case 0:
  		n = delayed ? TX_NOTIFY_DELAYED_OK : TX_NOTIFY_OK;
  		break;
  	case 4:
  	case 16:
  	case 17:
  	case 18:
  		n = delayed ? TX_NOTIFY_DELAYED_UNREACHABLE :
  			TX_NOTIFY_UNREACHABLE;
  		break;
  	default:
  		n = delayed ? TX_NOTIFY_DELAYED_GENERALERROR :
  			TX_NOTIFY_GENERALERROR;
  		break;
  	}
  
  	return n;
  }
  
  static inline void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q,
  	int bidx, int forced_cleanup)
  {
  	if (q->card->options.cq != QETH_CQ_ENABLED)
  		return;
  
  	if (q->bufs[bidx]->next_pending != NULL) {
  		struct qeth_qdio_out_buffer *head = q->bufs[bidx];
  		struct qeth_qdio_out_buffer *c = q->bufs[bidx]->next_pending;
  
  		while (c) {
  			if (forced_cleanup ||
  			    atomic_read(&c->state) ==
  			      QETH_QDIO_BUF_HANDLED_DELAYED) {
  				struct qeth_qdio_out_buffer *f = c;
  				QETH_CARD_TEXT(f->q->card, 5, "fp");
  				QETH_CARD_TEXT_(f->q->card, 5, "%lx", (long) f);
  				/* release here to avoid interleaving between
  				   outbound tasklet and inbound tasklet
  				   regarding notifications and lifecycle */
  				qeth_release_skbs(c);
  
  				c = f->next_pending;
  				WARN_ON_ONCE(head->next_pending != f);
  				head->next_pending = c;
  				kmem_cache_free(qeth_qdio_outbuf_cache, f);
  			} else {
  				head = c;
  				c = c->next_pending;
  			}
  
  		}
  	}
  	if (forced_cleanup && (atomic_read(&(q->bufs[bidx]->state)) ==
  					QETH_QDIO_BUF_HANDLED_DELAYED)) {
  		/* for recovery situations */
  		q->bufs[bidx]->aob = q->bufstates[bidx].aob;
  		qeth_init_qdio_out_buf(q, bidx);
  		QETH_CARD_TEXT(q->card, 2, "clprecov");
  	}
  }
  
  
  static inline void qeth_qdio_handle_aob(struct qeth_card *card,
  		unsigned long phys_aob_addr) {
  	struct qaob *aob;
  	struct qeth_qdio_out_buffer *buffer;
  	enum iucv_tx_notify notification;
  
  	aob = (struct qaob *) phys_to_virt(phys_aob_addr);
  	QETH_CARD_TEXT(card, 5, "haob");
  	QETH_CARD_TEXT_(card, 5, "%lx", phys_aob_addr);
  	buffer = (struct qeth_qdio_out_buffer *) aob->user1;
  	QETH_CARD_TEXT_(card, 5, "%lx", aob->user1);
  
  	if (atomic_cmpxchg(&buffer->state, QETH_QDIO_BUF_PRIMED,
  			   QETH_QDIO_BUF_IN_CQ) == QETH_QDIO_BUF_PRIMED) {
  		notification = TX_NOTIFY_OK;
  	} else {
  		WARN_ON_ONCE(atomic_read(&buffer->state) !=
  							QETH_QDIO_BUF_PENDING);
  		atomic_set(&buffer->state, QETH_QDIO_BUF_IN_CQ);
  		notification = TX_NOTIFY_DELAYED_OK;
  	}
  
  	if (aob->aorc != 0)  {
  		QETH_CARD_TEXT_(card, 2, "aorc%02X", aob->aorc);
  		notification = qeth_compute_cq_notification(aob->aorc, 1);
  	}
  	qeth_notify_skbs(buffer->q, buffer, notification);
  
  	buffer->aob = NULL;
  	qeth_clear_output_buffer(buffer->q, buffer,
  				 QETH_QDIO_BUF_HANDLED_DELAYED);
  
  	/* from here on: do not touch buffer anymore */
  	qdio_release_aob(aob);
  }
  
  static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue)
  {
  	return card->options.cq == QETH_CQ_ENABLED &&
  	    card->qdio.c_q != NULL &&
  	    queue != 0 &&
  	    queue == card->qdio.no_in_queues - 1;
  }
  
  
  static int qeth_issue_next_read(struct qeth_card *card)
  {
  	int rc;
  	struct qeth_cmd_buffer *iob;
  
  	QETH_CARD_TEXT(card, 5, "issnxrd");
  	if (card->read.state != CH_STATE_UP)
  		return -EIO;
  	iob = qeth_get_buffer(&card->read);
  	if (!iob) {
  		dev_warn(&card->gdev->dev, "The qeth device driver "
  			"failed to recover an error on the device\n");
  		QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
  			"available\n", dev_name(&card->gdev->dev));
  		return -ENOMEM;
  	}
  	qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
  	QETH_CARD_TEXT(card, 6, "noirqpnd");
  	rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
  			      (addr_t) iob, 0, 0);
  	if (rc) {
  		QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
  			"rc=%i\n", dev_name(&card->gdev->dev), rc);
  		atomic_set(&card->read.irq_pending, 0);
  		card->read_or_write_problem = 1;
  		qeth_schedule_recovery(card);
  		wake_up(&card->wait_q);
  	}
  	return rc;
  }
  
  static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
  {
  	struct qeth_reply *reply;
  
  	reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
  	if (reply) {
  		atomic_set(&reply->refcnt, 1);
  		atomic_set(&reply->received, 0);
  		reply->card = card;
  	}
  	return reply;
  }
  
  static void qeth_get_reply(struct qeth_reply *reply)
  {
  	WARN_ON(atomic_read(&reply->refcnt) <= 0);
  	atomic_inc(&reply->refcnt);
  }
  
  static void qeth_put_reply(struct qeth_reply *reply)
  {
  	WARN_ON(atomic_read(&reply->refcnt) <= 0);
  	if (atomic_dec_and_test(&reply->refcnt))
  		kfree(reply);
  }
  
  static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
  		struct qeth_card *card)
  {
  	char *ipa_name;
  	int com = cmd->hdr.command;
  	ipa_name = qeth_get_ipa_cmd_name(com);
  	if (rc)
  		QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned "
  				"x%X \"%s\"\n",
  				ipa_name, com, dev_name(&card->gdev->dev),
  				QETH_CARD_IFNAME(card), rc,
  				qeth_get_ipa_msg(rc));
  	else
  		QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n",
  				ipa_name, com, dev_name(&card->gdev->dev),
  				QETH_CARD_IFNAME(card));
  }
  
  static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
  		struct qeth_cmd_buffer *iob)
  {
  	struct qeth_ipa_cmd *cmd = NULL;
  
  	QETH_CARD_TEXT(card, 5, "chkipad");
  	if (IS_IPA(iob->data)) {
  		cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
  		if (IS_IPA_REPLY(cmd)) {
  			if (cmd->hdr.command != IPA_CMD_SETCCID &&
  			    cmd->hdr.command != IPA_CMD_DELCCID &&
  			    cmd->hdr.command != IPA_CMD_MODCCID &&
  			    cmd->hdr.command != IPA_CMD_SET_DIAG_ASS)
  				qeth_issue_ipa_msg(cmd,
  						cmd->hdr.return_code, card);
  			return cmd;
  		} else {
  			switch (cmd->hdr.command) {
  			case IPA_CMD_STOPLAN:
  				if (cmd->hdr.return_code ==
  						IPA_RC_VEPA_TO_VEB_TRANSITION) {
  					dev_err(&card->gdev->dev,
  					   "Interface %s is down because the "
  					   "adjacent port is no longer in "
  					   "reflective relay mode\n",
  					   QETH_CARD_IFNAME(card));
  					qeth_close_dev(card);
  				} else {
  					dev_warn(&card->gdev->dev,
  					   "The link for interface %s on CHPID"
  					   " 0x%X failed\n",
  					   QETH_CARD_IFNAME(card),
  					   card->info.chpid);
  					qeth_issue_ipa_msg(cmd,
  						cmd->hdr.return_code, card);
  				}
  				card->lan_online = 0;
  				if (card->dev && netif_carrier_ok(card->dev))
  					netif_carrier_off(card->dev);
  				return NULL;
  			case IPA_CMD_STARTLAN:
  				dev_info(&card->gdev->dev,
  					   "The link for %s on CHPID 0x%X has"
  					   " been restored\n",
  					   QETH_CARD_IFNAME(card),
  					   card->info.chpid);
  				netif_carrier_on(card->dev);
  				card->lan_online = 1;
  				if (card->info.hwtrap)
  					card->info.hwtrap = 2;
  				qeth_schedule_recovery(card);
  				return NULL;
  			case IPA_CMD_SETBRIDGEPORT_IQD:
  			case IPA_CMD_SETBRIDGEPORT_OSA:
  			case IPA_CMD_ADDRESS_CHANGE_NOTIF:
  				if (card->discipline->control_event_handler
  								(card, cmd))
  					return cmd;
  				else
  					return NULL;
  			case IPA_CMD_MODCCID:
  				return cmd;
  			case IPA_CMD_REGISTER_LOCAL_ADDR:
  				QETH_CARD_TEXT(card, 3, "irla");
  				break;
  			case IPA_CMD_UNREGISTER_LOCAL_ADDR:
  				QETH_CARD_TEXT(card, 3, "urla");
  				break;
  			default:
  				QETH_DBF_MESSAGE(2, "Received data is IPA "
  					   "but not a reply!\n");
  				break;
  			}
  		}
  	}
  	return cmd;
  }
  
  void qeth_clear_ipacmd_list(struct qeth_card *card)
  {
  	struct qeth_reply *reply, *r;
  	unsigned long flags;
  
  	QETH_CARD_TEXT(card, 4, "clipalst");
  
  	spin_lock_irqsave(&card->lock, flags);
  	list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
  		qeth_get_reply(reply);
  		reply->rc = -EIO;
  		atomic_inc(&reply->received);
  		list_del_init(&reply->list);
  		wake_up(&reply->wait_q);
  		qeth_put_reply(reply);
  	}
  	spin_unlock_irqrestore(&card->lock, flags);
  	atomic_set(&card->write.irq_pending, 0);
  }
  EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
  
  static int qeth_check_idx_response(struct qeth_card *card,
  	unsigned char *buffer)
  {
  	if (!buffer)
  		return 0;
  
  	QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN);
  	if ((buffer[2] & 0xc0) == 0xc0) {
  		QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
  			   "with cause code 0x%02x%s\n",
  			   buffer[4],
  			   ((buffer[4] == 0x22) ?
  			    " -- try another portname" : ""));
  		QETH_CARD_TEXT(card, 2, "ckidxres");
  		QETH_CARD_TEXT(card, 2, " idxterm");
  		QETH_CARD_TEXT_(card, 2, "  rc%d", -EIO);
  		if (buffer[4] == 0xf6) {
  			dev_err(&card->gdev->dev,
  			"The qeth device is not configured "
  			"for the OSI layer required by z/VM\n");
  			return -EPERM;
  		}
  		return -EIO;
  	}
  	return 0;
  }
  
  static struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
  {
  	struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
  		dev_get_drvdata(&cdev->dev))->dev);
  	return card;
  }
  
  static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
  		__u32 len)
  {
  	struct qeth_card *card;
  
  	card = CARD_FROM_CDEV(channel->ccwdev);
  	QETH_CARD_TEXT(card, 4, "setupccw");
  	if (channel == &card->read)
  		memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
  	else
  		memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
  	channel->ccw.count = len;
  	channel->ccw.cda = (__u32) __pa(iob);
  }
  
  static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
  {
  	__u8 index;
  
  	QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff");
  	index = channel->io_buf_no;
  	do {
  		if (channel->iob[index].state == BUF_STATE_FREE) {
  			channel->iob[index].state = BUF_STATE_LOCKED;
  			channel->io_buf_no = (channel->io_buf_no + 1) %
  				QETH_CMD_BUFFER_NO;
  			memset(channel->iob[index].data, 0, QETH_BUFSIZE);
  			return channel->iob + index;
  		}
  		index = (index + 1) % QETH_CMD_BUFFER_NO;
  	} while (index != channel->io_buf_no);
  
  	return NULL;
  }
  
  void qeth_release_buffer(struct qeth_channel *channel,
  		struct qeth_cmd_buffer *iob)
  {
  	unsigned long flags;
  
  	QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff");
  	spin_lock_irqsave(&channel->iob_lock, flags);
  	memset(iob->data, 0, QETH_BUFSIZE);
  	iob->state = BUF_STATE_FREE;
  	iob->callback = qeth_send_control_data_cb;
  	iob->rc = 0;
  	spin_unlock_irqrestore(&channel->iob_lock, flags);
  	wake_up(&channel->wait_q);
  }
  EXPORT_SYMBOL_GPL(qeth_release_buffer);
  
  static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
  {
  	struct qeth_cmd_buffer *buffer = NULL;
  	unsigned long flags;
  
  	spin_lock_irqsave(&channel->iob_lock, flags);
  	buffer = __qeth_get_buffer(channel);
  	spin_unlock_irqrestore(&channel->iob_lock, flags);
  	return buffer;
  }
  
  struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel)
  {
  	struct qeth_cmd_buffer *buffer;
  	wait_event(channel->wait_q,
  		   ((buffer = qeth_get_buffer(channel)) != NULL));
  	return buffer;
  }
  EXPORT_SYMBOL_GPL(qeth_wait_for_buffer);
  
  void qeth_clear_cmd_buffers(struct qeth_channel *channel)
  {
  	int cnt;
  
  	for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
  		qeth_release_buffer(channel, &channel->iob[cnt]);
  	channel->buf_no = 0;
  	channel->io_buf_no = 0;
  }
  EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
  
  static void qeth_send_control_data_cb(struct qeth_channel *channel,
  		  struct qeth_cmd_buffer *iob)
  {
  	struct qeth_card *card;
  	struct qeth_reply *reply, *r;
  	struct qeth_ipa_cmd *cmd;
  	unsigned long flags;
  	int keep_reply;
  	int rc = 0;
  
  	card = CARD_FROM_CDEV(channel->ccwdev);
  	QETH_CARD_TEXT(card, 4, "sndctlcb");
  	rc = qeth_check_idx_response(card, iob->data);
  	switch (rc) {
  	case 0:
  		break;
  	case -EIO:
  		qeth_clear_ipacmd_list(card);
  		qeth_schedule_recovery(card);
  		/* fall through */
  	default:
  		goto out;
  	}
  
  	cmd = qeth_check_ipa_data(card, iob);
  	if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
  		goto out;
  	/*in case of OSN : check if cmd is set */
  	if (card->info.type == QETH_CARD_TYPE_OSN &&
  	    cmd &&
  	    cmd->hdr.command != IPA_CMD_STARTLAN &&
  	    card->osn_info.assist_cb != NULL) {
  		card->osn_info.assist_cb(card->dev, cmd);
  		goto out;
  	}
  
  	spin_lock_irqsave(&card->lock, flags);
  	list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
  		if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
  		    ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
  			qeth_get_reply(reply);
  			list_del_init(&reply->list);
  			spin_unlock_irqrestore(&card->lock, flags);
  			keep_reply = 0;
  			if (reply->callback != NULL) {
  				if (cmd) {
  					reply->offset = (__u16)((char *)cmd -
  							(char *)iob->data);
  					keep_reply = reply->callback(card,
  							reply,
  							(unsigned long)cmd);
  				} else
  					keep_reply = reply->callback(card,
  							reply,
  							(unsigned long)iob);
  			}
  			if (cmd)
  				reply->rc = (u16) cmd->hdr.return_code;
  			else if (iob->rc)
  				reply->rc = iob->rc;
  			if (keep_reply) {
  				spin_lock_irqsave(&card->lock, flags);
  				list_add_tail(&reply->list,
  					      &card->cmd_waiter_list);
  				spin_unlock_irqrestore(&card->lock, flags);
  			} else {
  				atomic_inc(&reply->received);
  				wake_up(&reply->wait_q);
  			}
  			qeth_put_reply(reply);
  			goto out;
  		}
  	}
  	spin_unlock_irqrestore(&card->lock, flags);
  out:
  	memcpy(&card->seqno.pdu_hdr_ack,
  		QETH_PDU_HEADER_SEQ_NO(iob->data),
  		QETH_SEQ_NO_LENGTH);
  	qeth_release_buffer(channel, iob);
  }
  
  static int qeth_setup_channel(struct qeth_channel *channel)
  {
  	int cnt;
  
  	QETH_DBF_TEXT(SETUP, 2, "setupch");
  	for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
  		channel->iob[cnt].data =
  			kzalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
  		if (channel->iob[cnt].data == NULL)
  			break;
  		channel->iob[cnt].state = BUF_STATE_FREE;
  		channel->iob[cnt].channel = channel;
  		channel->iob[cnt].callback = qeth_send_control_data_cb;
  		channel->iob[cnt].rc = 0;
  	}
  	if (cnt < QETH_CMD_BUFFER_NO) {
  		while (cnt-- > 0)
  			kfree(channel->iob[cnt].data);
  		return -ENOMEM;
  	}
  	channel->buf_no = 0;
  	channel->io_buf_no = 0;
  	atomic_set(&channel->irq_pending, 0);
  	spin_lock_init(&channel->iob_lock);
  
  	init_waitqueue_head(&channel->wait_q);
  	return 0;
  }
  
  static int qeth_set_thread_start_bit(struct qeth_card *card,
  		unsigned long thread)
  {
  	unsigned long flags;
  
  	spin_lock_irqsave(&card->thread_mask_lock, flags);
  	if (!(card->thread_allowed_mask & thread) ||
  	      (card->thread_start_mask & thread)) {
  		spin_unlock_irqrestore(&card->thread_mask_lock, flags);
  		return -EPERM;
  	}
  	card->thread_start_mask |= thread;
  	spin_unlock_irqrestore(&card->thread_mask_lock, flags);
  	return 0;
  }
  
  void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
  {
  	unsigned long flags;
  
  	spin_lock_irqsave(&card->thread_mask_lock, flags);
  	card->thread_start_mask &= ~thread;
  	spin_unlock_irqrestore(&card->thread_mask_lock, flags);
  	wake_up(&card->wait_q);
  }
  EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit);
  
  void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
  {
  	unsigned long flags;
  
  	spin_lock_irqsave(&card->thread_mask_lock, flags);
  	card->thread_running_mask &= ~thread;
  	spin_unlock_irqrestore(&card->thread_mask_lock, flags);
  	wake_up(&card->wait_q);
  }
  EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
  
  static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
  {
  	unsigned long flags;
  	int rc = 0;
  
  	spin_lock_irqsave(&card->thread_mask_lock, flags);
  	if (card->thread_start_mask & thread) {
  		if ((card->thread_allowed_mask & thread) &&
  		    !(card->thread_running_mask & thread)) {
  			rc = 1;
  			card->thread_start_mask &= ~thread;
  			card->thread_running_mask |= thread;
  		} else
  			rc = -EPERM;
  	}
  	spin_unlock_irqrestore(&card->thread_mask_lock, flags);
  	return rc;
  }
  
  int qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
  {
  	int rc = 0;
  
  	wait_event(card->wait_q,
  		   (rc = __qeth_do_run_thread(card, thread)) >= 0);
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_do_run_thread);
  
  void qeth_schedule_recovery(struct qeth_card *card)
  {
  	QETH_CARD_TEXT(card, 2, "startrec");
  	if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
  		schedule_work(&card->kernel_thread_starter);
  }
  EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
  
  static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
  {
  	int dstat, cstat;
  	char *sense;
  	struct qeth_card *card;
  
  	sense = (char *) irb->ecw;
  	cstat = irb->scsw.cmd.cstat;
  	dstat = irb->scsw.cmd.dstat;
  	card = CARD_FROM_CDEV(cdev);
  
  	if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
  		     SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
  		     SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
  		QETH_CARD_TEXT(card, 2, "CGENCHK");
  		dev_warn(&cdev->dev, "The qeth device driver "
  			"failed to recover an error on the device\n");
  		QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n",
  			dev_name(&cdev->dev), dstat, cstat);
  		print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET,
  				16, 1, irb, 64, 1);
  		return 1;
  	}
  
  	if (dstat & DEV_STAT_UNIT_CHECK) {
  		if (sense[SENSE_RESETTING_EVENT_BYTE] &
  		    SENSE_RESETTING_EVENT_FLAG) {
  			QETH_CARD_TEXT(card, 2, "REVIND");
  			return 1;
  		}
  		if (sense[SENSE_COMMAND_REJECT_BYTE] &
  		    SENSE_COMMAND_REJECT_FLAG) {
  			QETH_CARD_TEXT(card, 2, "CMDREJi");
  			return 1;
  		}
  		if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
  			QETH_CARD_TEXT(card, 2, "AFFE");
  			return 1;
  		}
  		if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
  			QETH_CARD_TEXT(card, 2, "ZEROSEN");
  			return 0;
  		}
  		QETH_CARD_TEXT(card, 2, "DGENCHK");
  			return 1;
  	}
  	return 0;
  }
  
  static long __qeth_check_irb_error(struct ccw_device *cdev,
  		unsigned long intparm, struct irb *irb)
  {
  	struct qeth_card *card;
  
  	card = CARD_FROM_CDEV(cdev);
  
  	if (!card || !IS_ERR(irb))
  		return 0;
  
  	switch (PTR_ERR(irb)) {
  	case -EIO:
  		QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
  			dev_name(&cdev->dev));
  		QETH_CARD_TEXT(card, 2, "ckirberr");
  		QETH_CARD_TEXT_(card, 2, "  rc%d", -EIO);
  		break;
  	case -ETIMEDOUT:
  		dev_warn(&cdev->dev, "A hardware operation timed out"
  			" on the device\n");
  		QETH_CARD_TEXT(card, 2, "ckirberr");
  		QETH_CARD_TEXT_(card, 2, "  rc%d", -ETIMEDOUT);
  		if (intparm == QETH_RCD_PARM) {
  			if (card->data.ccwdev == cdev) {
  				card->data.state = CH_STATE_DOWN;
  				wake_up(&card->wait_q);
  			}
  		}
  		break;
  	default:
  		QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
  			dev_name(&cdev->dev), PTR_ERR(irb));
  		QETH_CARD_TEXT(card, 2, "ckirberr");
  		QETH_CARD_TEXT(card, 2, "  rc???");
  	}
  	return PTR_ERR(irb);
  }
  
  static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
  		struct irb *irb)
  {
  	int rc;
  	int cstat, dstat;
  	struct qeth_cmd_buffer *buffer;
  	struct qeth_channel *channel;
  	struct qeth_card *card;
  	struct qeth_cmd_buffer *iob;
  	__u8 index;
  
  	if (__qeth_check_irb_error(cdev, intparm, irb))
  		return;
  	cstat = irb->scsw.cmd.cstat;
  	dstat = irb->scsw.cmd.dstat;
  
  	card = CARD_FROM_CDEV(cdev);
  	if (!card)
  		return;
  
  	QETH_CARD_TEXT(card, 5, "irq");
  
  	if (card->read.ccwdev == cdev) {
  		channel = &card->read;
  		QETH_CARD_TEXT(card, 5, "read");
  	} else if (card->write.ccwdev == cdev) {
  		channel = &card->write;
  		QETH_CARD_TEXT(card, 5, "write");
  	} else {
  		channel = &card->data;
  		QETH_CARD_TEXT(card, 5, "data");
  	}
  	atomic_set(&channel->irq_pending, 0);
  
  	if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC))
  		channel->state = CH_STATE_STOPPED;
  
  	if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC))
  		channel->state = CH_STATE_HALTED;
  
  	/*let's wake up immediately on data channel*/
  	if ((channel == &card->data) && (intparm != 0) &&
  	    (intparm != QETH_RCD_PARM))
  		goto out;
  
  	if (intparm == QETH_CLEAR_CHANNEL_PARM) {
  		QETH_CARD_TEXT(card, 6, "clrchpar");
  		/* we don't have to handle this further */
  		intparm = 0;
  	}
  	if (intparm == QETH_HALT_CHANNEL_PARM) {
  		QETH_CARD_TEXT(card, 6, "hltchpar");
  		/* we don't have to handle this further */
  		intparm = 0;
  	}
  	if ((dstat & DEV_STAT_UNIT_EXCEP) ||
  	    (dstat & DEV_STAT_UNIT_CHECK) ||
  	    (cstat)) {
  		if (irb->esw.esw0.erw.cons) {
  			dev_warn(&channel->ccwdev->dev,
  				"The qeth device driver failed to recover "
  				"an error on the device\n");
  			QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
  				"0x%X dstat 0x%X\n",
  				dev_name(&channel->ccwdev->dev), cstat, dstat);
  			print_hex_dump(KERN_WARNING, "qeth: irb ",
  				DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1);
  			print_hex_dump(KERN_WARNING, "qeth: sense data ",
  				DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1);
  		}
  		if (intparm == QETH_RCD_PARM) {
  			channel->state = CH_STATE_DOWN;
  			goto out;
  		}
  		rc = qeth_get_problem(cdev, irb);
  		if (rc) {
  			qeth_clear_ipacmd_list(card);
  			qeth_schedule_recovery(card);
  			goto out;
  		}
  	}
  
  	if (intparm == QETH_RCD_PARM) {
  		channel->state = CH_STATE_RCD_DONE;
  		goto out;
  	}
  	if (intparm) {
  		buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
  		buffer->state = BUF_STATE_PROCESSED;
  	}
  	if (channel == &card->data)
  		return;
  	if (channel == &card->read &&
  	    channel->state == CH_STATE_UP)
  		qeth_issue_next_read(card);
  
  	iob = channel->iob;
  	index = channel->buf_no;
  	while (iob[index].state == BUF_STATE_PROCESSED) {
  		if (iob[index].callback != NULL)
  			iob[index].callback(channel, iob + index);
  
  		index = (index + 1) % QETH_CMD_BUFFER_NO;
  	}
  	channel->buf_no = index;
  out:
  	wake_up(&card->wait_q);
  	return;
  }
  
  static void qeth_notify_skbs(struct qeth_qdio_out_q *q,
  		struct qeth_qdio_out_buffer *buf,
  		enum iucv_tx_notify notification)
  {
  	struct sk_buff *skb;
  
  	if (skb_queue_empty(&buf->skb_list))
  		goto out;
  	skb = skb_peek(&buf->skb_list);
  	while (skb) {
  		QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification);
  		QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb);
  		if (skb->protocol == ETH_P_AF_IUCV) {
  			if (skb->sk) {
  				struct iucv_sock *iucv = iucv_sk(skb->sk);
  				iucv->sk_txnotify(skb, notification);
  			}
  		}
  		if (skb_queue_is_last(&buf->skb_list, skb))
  			skb = NULL;
  		else
  			skb = skb_queue_next(&buf->skb_list, skb);
  	}
  out:
  	return;
  }
  
  static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf)
  {
  	struct sk_buff *skb;
  	struct iucv_sock *iucv;
  	int notify_general_error = 0;
  
  	if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING)
  		notify_general_error = 1;
  
  	/* release may never happen from within CQ tasklet scope */
  	WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ);
  
  	skb = skb_dequeue(&buf->skb_list);
  	while (skb) {
  		QETH_CARD_TEXT(buf->q->card, 5, "skbr");
  		QETH_CARD_TEXT_(buf->q->card, 5, "%lx", (long) skb);
  		if (notify_general_error && skb->protocol == ETH_P_AF_IUCV) {
  			if (skb->sk) {
  				iucv = iucv_sk(skb->sk);
  				iucv->sk_txnotify(skb, TX_NOTIFY_GENERALERROR);
  			}
  		}
  		atomic_dec(&skb->users);
  		dev_kfree_skb_any(skb);
  		skb = skb_dequeue(&buf->skb_list);
  	}
  }
  
  static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
  		struct qeth_qdio_out_buffer *buf,
  		enum qeth_qdio_buffer_states newbufstate)
  {
  	int i;
  
  	/* is PCI flag set on buffer? */
  	if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ)
  		atomic_dec(&queue->set_pci_flags_count);
  
  	if (newbufstate == QETH_QDIO_BUF_EMPTY) {
  		qeth_release_skbs(buf);
  	}
  	for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
  		if (buf->buffer->element[i].addr && buf->is_header[i])
  			kmem_cache_free(qeth_core_header_cache,
  				buf->buffer->element[i].addr);
  		buf->is_header[i] = 0;
  		buf->buffer->element[i].length = 0;
  		buf->buffer->element[i].addr = NULL;
  		buf->buffer->element[i].eflags = 0;
  		buf->buffer->element[i].sflags = 0;
  	}
  	buf->buffer->element[15].eflags = 0;
  	buf->buffer->element[15].sflags = 0;
  	buf->next_element_to_fill = 0;
  	atomic_set(&buf->state, newbufstate);
  }
  
  static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free)
  {
  	int j;
  
  	for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
  		if (!q->bufs[j])
  			continue;
  		qeth_cleanup_handled_pending(q, j, 1);
  		qeth_clear_output_buffer(q, q->bufs[j], QETH_QDIO_BUF_EMPTY);
  		if (free) {
  			kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]);
  			q->bufs[j] = NULL;
  		}
  	}
  }
  
  void qeth_clear_qdio_buffers(struct qeth_card *card)
  {
  	int i;
  
  	QETH_CARD_TEXT(card, 2, "clearqdbf");
  	/* clear outbound buffers to free skbs */
  	for (i = 0; i < card->qdio.no_out_queues; ++i) {
  		if (card->qdio.out_qs[i]) {
  			qeth_clear_outq_buffers(card->qdio.out_qs[i], 0);
  		}
  	}
  }
  EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers);
  
  static void qeth_free_buffer_pool(struct qeth_card *card)
  {
  	struct qeth_buffer_pool_entry *pool_entry, *tmp;
  	int i = 0;
  	list_for_each_entry_safe(pool_entry, tmp,
  				 &card->qdio.init_pool.entry_list, init_list){
  		for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
  			free_page((unsigned long)pool_entry->elements[i]);
  		list_del(&pool_entry->init_list);
  		kfree(pool_entry);
  	}
  }
  
  static void qeth_clean_channel(struct qeth_channel *channel)
  {
  	int cnt;
  
  	QETH_DBF_TEXT(SETUP, 2, "freech");
  	for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
  		kfree(channel->iob[cnt].data);
  }
  
  static void qeth_set_single_write_queues(struct qeth_card *card)
  {
  	if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) &&
  	    (card->qdio.no_out_queues == 4))
  		qeth_free_qdio_buffers(card);
  
  	card->qdio.no_out_queues = 1;
  	if (card->qdio.default_out_queue != 0)
  		dev_info(&card->gdev->dev, "Priority Queueing not supported\n");
  
  	card->qdio.default_out_queue = 0;
  }
  
  static void qeth_set_multiple_write_queues(struct qeth_card *card)
  {
  	if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) &&
  	    (card->qdio.no_out_queues == 1)) {
  		qeth_free_qdio_buffers(card);
  		card->qdio.default_out_queue = 2;
  	}
  	card->qdio.no_out_queues = 4;
  }
  
  static void qeth_update_from_chp_desc(struct qeth_card *card)
  {
  	struct ccw_device *ccwdev;
  	struct channel_path_desc *chp_dsc;
  
  	QETH_DBF_TEXT(SETUP, 2, "chp_desc");
  
  	ccwdev = card->data.ccwdev;
  	chp_dsc = ccw_device_get_chp_desc(ccwdev, 0);
  	if (!chp_dsc)
  		goto out;
  
  	card->info.func_level = 0x4100 + chp_dsc->desc;
  	if (card->info.type == QETH_CARD_TYPE_IQD)
  		goto out;
  
  	/* CHPP field bit 6 == 1 -> single queue */
  	if ((chp_dsc->chpp & 0x02) == 0x02)
  		qeth_set_single_write_queues(card);
  	else
  		qeth_set_multiple_write_queues(card);
  out:
  	kfree(chp_dsc);
  	QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues);
  	QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level);
  }
  
  static void qeth_init_qdio_info(struct qeth_card *card)
  {
  	QETH_DBF_TEXT(SETUP, 4, "intqdinf");
  	atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
  	/* inbound */
  	card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
  	if (card->info.type == QETH_CARD_TYPE_IQD)
  		card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT;
  	else
  		card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
  	card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
  	INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
  	INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
  }
  
  static void qeth_set_intial_options(struct qeth_card *card)
  {
  	card->options.route4.type = NO_ROUTER;
  	card->options.route6.type = NO_ROUTER;
  	card->options.fake_broadcast = 0;
  	card->options.add_hhlen = DEFAULT_ADD_HHLEN;
  	card->options.performance_stats = 0;
  	card->options.rx_sg_cb = QETH_RX_SG_CB;
  	card->options.isolation = ISOLATION_MODE_NONE;
  	card->options.cq = QETH_CQ_DISABLED;
  }
  
  static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
  {
  	unsigned long flags;
  	int rc = 0;
  
  	spin_lock_irqsave(&card->thread_mask_lock, flags);
  	QETH_CARD_TEXT_(card, 4, "  %02x%02x%02x",
  			(u8) card->thread_start_mask,
  			(u8) card->thread_allowed_mask,
  			(u8) card->thread_running_mask);
  	rc = (card->thread_start_mask & thread);
  	spin_unlock_irqrestore(&card->thread_mask_lock, flags);
  	return rc;
  }
  
  static void qeth_start_kernel_thread(struct work_struct *work)
  {
  	struct task_struct *ts;
  	struct qeth_card *card = container_of(work, struct qeth_card,
  					kernel_thread_starter);
  	QETH_CARD_TEXT(card , 2, "strthrd");
  
  	if (card->read.state != CH_STATE_UP &&
  	    card->write.state != CH_STATE_UP)
  		return;
  	if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) {
  		ts = kthread_run(card->discipline->recover, (void *)card,
  				"qeth_recover");
  		if (IS_ERR(ts)) {
  			qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
  			qeth_clear_thread_running_bit(card,
  				QETH_RECOVER_THREAD);
  		}
  	}
  }
  
  static void qeth_buffer_reclaim_work(struct work_struct *);
  static int qeth_setup_card(struct qeth_card *card)
  {
  
  	QETH_DBF_TEXT(SETUP, 2, "setupcrd");
  	QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
  
  	card->read.state  = CH_STATE_DOWN;
  	card->write.state = CH_STATE_DOWN;
  	card->data.state  = CH_STATE_DOWN;
  	card->state = CARD_STATE_DOWN;
  	card->lan_online = 0;
  	card->read_or_write_problem = 0;
  	card->dev = NULL;
  	spin_lock_init(&card->vlanlock);
  	spin_lock_init(&card->mclock);
  	spin_lock_init(&card->lock);
  	spin_lock_init(&card->ip_lock);
  	spin_lock_init(&card->thread_mask_lock);
  	mutex_init(&card->conf_mutex);
  	mutex_init(&card->discipline_mutex);
  	card->thread_start_mask = 0;
  	card->thread_allowed_mask = 0;
  	card->thread_running_mask = 0;
  	INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
  	INIT_LIST_HEAD(&card->ip_list);
  	INIT_LIST_HEAD(card->ip_tbd_list);
  	INIT_LIST_HEAD(&card->cmd_waiter_list);
  	init_waitqueue_head(&card->wait_q);
  	/* initial options */
  	qeth_set_intial_options(card);
  	/* IP address takeover */
  	INIT_LIST_HEAD(&card->ipato.entries);
  	card->ipato.enabled = 0;
  	card->ipato.invert4 = 0;
  	card->ipato.invert6 = 0;
  	/* init QDIO stuff */
  	qeth_init_qdio_info(card);
  	INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work);
  	INIT_WORK(&card->close_dev_work, qeth_close_dev_handler);
  	return 0;
  }
  
  static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr)
  {
  	struct qeth_card *card = container_of(slr, struct qeth_card,
  					qeth_service_level);
  	if (card->info.mcl_level[0])
  		seq_printf(m, "qeth: %s firmware level %s\n",
  			CARD_BUS_ID(card), card->info.mcl_level);
  }
  
  static struct qeth_card *qeth_alloc_card(void)
  {
  	struct qeth_card *card;
  
  	QETH_DBF_TEXT(SETUP, 2, "alloccrd");
  	card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
  	if (!card)
  		goto out;
  	QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
  	card->ip_tbd_list = kzalloc(sizeof(struct list_head), GFP_KERNEL);
  	if (!card->ip_tbd_list) {
  		QETH_DBF_TEXT(SETUP, 0, "iptbdnom");
  		goto out_card;
  	}
  	if (qeth_setup_channel(&card->read))
  		goto out_ip;
  	if (qeth_setup_channel(&card->write))
  		goto out_channel;
  	card->options.layer2 = -1;
  	card->qeth_service_level.seq_print = qeth_core_sl_print;
  	register_service_level(&card->qeth_service_level);
  	return card;
  
  out_channel:
  	qeth_clean_channel(&card->read);
  out_ip:
  	kfree(card->ip_tbd_list);
  out_card:
  	kfree(card);
  out:
  	return NULL;
  }
  
  static int qeth_determine_card_type(struct qeth_card *card)
  {
  	int i = 0;
  
  	QETH_DBF_TEXT(SETUP, 2, "detcdtyp");
  
  	card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
  	card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
  	while (known_devices[i][QETH_DEV_MODEL_IND]) {
  		if ((CARD_RDEV(card)->id.dev_type ==
  				known_devices[i][QETH_DEV_TYPE_IND]) &&
  		    (CARD_RDEV(card)->id.dev_model ==
  				known_devices[i][QETH_DEV_MODEL_IND])) {
  			card->info.type = known_devices[i][QETH_DEV_MODEL_IND];
  			card->qdio.no_out_queues =
  				known_devices[i][QETH_QUEUE_NO_IND];
  			card->qdio.no_in_queues = 1;
  			card->info.is_multicast_different =
  				known_devices[i][QETH_MULTICAST_IND];
  			qeth_update_from_chp_desc(card);
  			return 0;
  		}
  		i++;
  	}
  	card->info.type = QETH_CARD_TYPE_UNKNOWN;
  	dev_err(&card->gdev->dev, "The adapter hardware is of an "
  		"unknown type\n");
  	return -ENOENT;
  }
  
  static int qeth_clear_channel(struct qeth_channel *channel)
  {
  	unsigned long flags;
  	struct qeth_card *card;
  	int rc;
  
  	card = CARD_FROM_CDEV(channel->ccwdev);
  	QETH_CARD_TEXT(card, 3, "clearch");
  	spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
  	rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
  	spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
  
  	if (rc)
  		return rc;
  	rc = wait_event_interruptible_timeout(card->wait_q,
  			channel->state == CH_STATE_STOPPED, QETH_TIMEOUT);
  	if (rc == -ERESTARTSYS)
  		return rc;
  	if (channel->state != CH_STATE_STOPPED)
  		return -ETIME;
  	channel->state = CH_STATE_DOWN;
  	return 0;
  }
  
  static int qeth_halt_channel(struct qeth_channel *channel)
  {
  	unsigned long flags;
  	struct qeth_card *card;
  	int rc;
  
  	card = CARD_FROM_CDEV(channel->ccwdev);
  	QETH_CARD_TEXT(card, 3, "haltch");
  	spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
  	rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
  	spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
  
  	if (rc)
  		return rc;
  	rc = wait_event_interruptible_timeout(card->wait_q,
  			channel->state == CH_STATE_HALTED, QETH_TIMEOUT);
  	if (rc == -ERESTARTSYS)
  		return rc;
  	if (channel->state != CH_STATE_HALTED)
  		return -ETIME;
  	return 0;
  }
  
  static int qeth_halt_channels(struct qeth_card *card)
  {
  	int rc1 = 0, rc2 = 0, rc3 = 0;
  
  	QETH_CARD_TEXT(card, 3, "haltchs");
  	rc1 = qeth_halt_channel(&card->read);
  	rc2 = qeth_halt_channel(&card->write);
  	rc3 = qeth_halt_channel(&card->data);
  	if (rc1)
  		return rc1;
  	if (rc2)
  		return rc2;
  	return rc3;
  }
  
  static int qeth_clear_channels(struct qeth_card *card)
  {
  	int rc1 = 0, rc2 = 0, rc3 = 0;
  
  	QETH_CARD_TEXT(card, 3, "clearchs");
  	rc1 = qeth_clear_channel(&card->read);
  	rc2 = qeth_clear_channel(&card->write);
  	rc3 = qeth_clear_channel(&card->data);
  	if (rc1)
  		return rc1;
  	if (rc2)
  		return rc2;
  	return rc3;
  }
  
  static int qeth_clear_halt_card(struct qeth_card *card, int halt)
  {
  	int rc = 0;
  
  	QETH_CARD_TEXT(card, 3, "clhacrd");
  
  	if (halt)
  		rc = qeth_halt_channels(card);
  	if (rc)
  		return rc;
  	return qeth_clear_channels(card);
  }
  
  int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
  {
  	int rc = 0;
  
  	QETH_CARD_TEXT(card, 3, "qdioclr");
  	switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
  		QETH_QDIO_CLEANING)) {
  	case QETH_QDIO_ESTABLISHED:
  		if (card->info.type == QETH_CARD_TYPE_IQD)
  			rc = qdio_shutdown(CARD_DDEV(card),
  				QDIO_FLAG_CLEANUP_USING_HALT);
  		else
  			rc = qdio_shutdown(CARD_DDEV(card),
  				QDIO_FLAG_CLEANUP_USING_CLEAR);
  		if (rc)
  			QETH_CARD_TEXT_(card, 3, "1err%d", rc);
  		atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
  		break;
  	case QETH_QDIO_CLEANING:
  		return rc;
  	default:
  		break;
  	}
  	rc = qeth_clear_halt_card(card, use_halt);
  	if (rc)
  		QETH_CARD_TEXT_(card, 3, "2err%d", rc);
  	card->state = CARD_STATE_DOWN;
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);
  
  static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
  			       int *length)
  {
  	struct ciw *ciw;
  	char *rcd_buf;
  	int ret;
  	struct qeth_channel *channel = &card->data;
  	unsigned long flags;
  
  	/*
  	 * scan for RCD command in extended SenseID data
  	 */
  	ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
  	if (!ciw || ciw->cmd == 0)
  		return -EOPNOTSUPP;
  	rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
  	if (!rcd_buf)
  		return -ENOMEM;
  
  	channel->ccw.cmd_code = ciw->cmd;
  	channel->ccw.cda = (__u32) __pa(rcd_buf);
  	channel->ccw.count = ciw->count;
  	channel->ccw.flags = CCW_FLAG_SLI;
  	channel->state = CH_STATE_RCD;
  	spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
  	ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
  				       QETH_RCD_PARM, LPM_ANYPATH, 0,
  				       QETH_RCD_TIMEOUT);
  	spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
  	if (!ret)
  		wait_event(card->wait_q,
  			   (channel->state == CH_STATE_RCD_DONE ||
  			    channel->state == CH_STATE_DOWN));
  	if (channel->state == CH_STATE_DOWN)
  		ret = -EIO;
  	else
  		channel->state = CH_STATE_DOWN;
  	if (ret) {
  		kfree(rcd_buf);
  		*buffer = NULL;
  		*length = 0;
  	} else {
  		*length = ciw->count;
  		*buffer = rcd_buf;
  	}
  	return ret;
  }
  
  static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd)
  {
  	QETH_DBF_TEXT(SETUP, 2, "cfgunit");
  	card->info.chpid = prcd[30];
  	card->info.unit_addr2 = prcd[31];
  	card->info.cula = prcd[63];
  	card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
  			       (prcd[0x11] == _ascebc['M']));
  }
  
  static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd)
  {
  	QETH_DBF_TEXT(SETUP, 2, "cfgblkt");
  
  	if (prcd[74] == 0xF0 && prcd[75] == 0xF0 &&
  	    prcd[76] >= 0xF1 && prcd[76] <= 0xF4) {
  		card->info.blkt.time_total = 0;
  		card->info.blkt.inter_packet = 0;
  		card->info.blkt.inter_packet_jumbo = 0;
  	} else {
  		card->info.blkt.time_total = 250;
  		card->info.blkt.inter_packet = 5;
  		card->info.blkt.inter_packet_jumbo = 15;
  	}
  }
  
  static void qeth_init_tokens(struct qeth_card *card)
  {
  	card->token.issuer_rm_w = 0x00010103UL;
  	card->token.cm_filter_w = 0x00010108UL;
  	card->token.cm_connection_w = 0x0001010aUL;
  	card->token.ulp_filter_w = 0x0001010bUL;
  	card->token.ulp_connection_w = 0x0001010dUL;
  }
  
  static void qeth_init_func_level(struct qeth_card *card)
  {
  	switch (card->info.type) {
  	case QETH_CARD_TYPE_IQD:
  		card->info.func_level =	QETH_IDX_FUNC_LEVEL_IQD;
  		break;
  	case QETH_CARD_TYPE_OSD:
  	case QETH_CARD_TYPE_OSN:
  		card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD;
  		break;
  	default:
  		break;
  	}
  }
  
  static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
  		void (*idx_reply_cb)(struct qeth_channel *,
  			struct qeth_cmd_buffer *))
  {
  	struct qeth_cmd_buffer *iob;
  	unsigned long flags;
  	int rc;
  	struct qeth_card *card;
  
  	QETH_DBF_TEXT(SETUP, 2, "idxanswr");
  	card = CARD_FROM_CDEV(channel->ccwdev);
  	iob = qeth_get_buffer(channel);
  	if (!iob)
  		return -ENOMEM;
  	iob->callback = idx_reply_cb;
  	memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
  	channel->ccw.count = QETH_BUFSIZE;
  	channel->ccw.cda = (__u32) __pa(iob->data);
  
  	wait_event(card->wait_q,
  		   atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
  	QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
  	spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
  	rc = ccw_device_start(channel->ccwdev,
  			      &channel->ccw, (addr_t) iob, 0, 0);
  	spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
  
  	if (rc) {
  		QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
  		QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
  		atomic_set(&channel->irq_pending, 0);
  		wake_up(&card->wait_q);
  		return rc;
  	}
  	rc = wait_event_interruptible_timeout(card->wait_q,
  			 channel->state == CH_STATE_UP, QETH_TIMEOUT);
  	if (rc == -ERESTARTSYS)
  		return rc;
  	if (channel->state != CH_STATE_UP) {
  		rc = -ETIME;
  		QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
  		qeth_clear_cmd_buffers(channel);
  	} else
  		rc = 0;
  	return rc;
  }
  
  static int qeth_idx_activate_channel(struct qeth_channel *channel,
  		void (*idx_reply_cb)(struct qeth_channel *,
  			struct qeth_cmd_buffer *))
  {
  	struct qeth_card *card;
  	struct qeth_cmd_buffer *iob;
  	unsigned long flags;
  	__u16 temp;
  	__u8 tmp;
  	int rc;
  	struct ccw_dev_id temp_devid;
  
  	card = CARD_FROM_CDEV(channel->ccwdev);
  
  	QETH_DBF_TEXT(SETUP, 2, "idxactch");
  
  	iob = qeth_get_buffer(channel);
  	if (!iob)
  		return -ENOMEM;
  	iob->callback = idx_reply_cb;
  	memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
  	channel->ccw.count = IDX_ACTIVATE_SIZE;
  	channel->ccw.cda = (__u32) __pa(iob->data);
  	if (channel == &card->write) {
  		memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
  		memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
  		       &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
  		card->seqno.trans_hdr++;
  	} else {
  		memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
  		memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
  		       &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
  	}
  	tmp = ((__u8)card->info.portno) | 0x80;
  	memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1);
  	memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
  	       &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH);
  	memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
  	       &card->info.func_level, sizeof(__u16));
  	ccw_device_get_id(CARD_DDEV(card), &temp_devid);
  	memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2);
  	temp = (card->info.cula << 8) + card->info.unit_addr2;
  	memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
  
  	wait_event(card->wait_q,
  		   atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
  	QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
  	spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
  	rc = ccw_device_start(channel->ccwdev,
  			      &channel->ccw, (addr_t) iob, 0, 0);
  	spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
  
  	if (rc) {
  		QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
  			rc);
  		QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
  		atomic_set(&channel->irq_pending, 0);
  		wake_up(&card->wait_q);
  		return rc;
  	}
  	rc = wait_event_interruptible_timeout(card->wait_q,
  			channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
  	if (rc == -ERESTARTSYS)
  		return rc;
  	if (channel->state != CH_STATE_ACTIVATING) {
  		dev_warn(&channel->ccwdev->dev, "The qeth device driver"
  			" failed to recover an error on the device\n");
  		QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
  			dev_name(&channel->ccwdev->dev));
  		QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
  		qeth_clear_cmd_buffers(channel);
  		return -ETIME;
  	}
  	return qeth_idx_activate_get_answer(channel, idx_reply_cb);
  }
  
  static int qeth_peer_func_level(int level)
  {
  	if ((level & 0xff) == 8)
  		return (level & 0xff) + 0x400;
  	if (((level >> 8) & 3) == 1)
  		return (level & 0xff) + 0x200;
  	return level;
  }
  
  static void qeth_idx_write_cb(struct qeth_channel *channel,
  		struct qeth_cmd_buffer *iob)
  {
  	struct qeth_card *card;
  	__u16 temp;
  
  	QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
  
  	if (channel->state == CH_STATE_DOWN) {
  		channel->state = CH_STATE_ACTIVATING;
  		goto out;
  	}
  	card = CARD_FROM_CDEV(channel->ccwdev);
  
  	if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
  		if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL)
  			dev_err(&card->write.ccwdev->dev,
  				"The adapter is used exclusively by another "
  				"host\n");
  		else
  			QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
  				" negative reply\n",
  				dev_name(&card->write.ccwdev->dev));
  		goto out;
  	}
  	memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
  	if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
  		QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
  			"function level mismatch (sent: 0x%x, received: "
  			"0x%x)\n", dev_name(&card->write.ccwdev->dev),
  			card->info.func_level, temp);
  		goto out;
  	}
  	channel->state = CH_STATE_UP;
  out:
  	qeth_release_buffer(channel, iob);
  }
  
  static void qeth_idx_read_cb(struct qeth_channel *channel,
  		struct qeth_cmd_buffer *iob)
  {
  	struct qeth_card *card;
  	__u16 temp;
  
  	QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
  	if (channel->state == CH_STATE_DOWN) {
  		channel->state = CH_STATE_ACTIVATING;
  		goto out;
  	}
  
  	card = CARD_FROM_CDEV(channel->ccwdev);
  	if (qeth_check_idx_response(card, iob->data))
  			goto out;
  
  	if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
  		switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) {
  		case QETH_IDX_ACT_ERR_EXCL:
  			dev_err(&card->write.ccwdev->dev,
  				"The adapter is used exclusively by another "
  				"host\n");
  			break;
  		case QETH_IDX_ACT_ERR_AUTH:
  		case QETH_IDX_ACT_ERR_AUTH_USER:
  			dev_err(&card->read.ccwdev->dev,
  				"Setting the device online failed because of "
  				"insufficient authorization\n");
  			break;
  		default:
  			QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
  				" negative reply\n",
  				dev_name(&card->read.ccwdev->dev));
  		}
  		QETH_CARD_TEXT_(card, 2, "idxread%c",
  			QETH_IDX_ACT_CAUSE_CODE(iob->data));
  		goto out;
  	}
  
  	memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
  	if (temp != qeth_peer_func_level(card->info.func_level)) {
  		QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
  			"level mismatch (sent: 0x%x, received: 0x%x)\n",
  			dev_name(&card->read.ccwdev->dev),
  			card->info.func_level, temp);
  		goto out;
  	}
  	memcpy(&card->token.issuer_rm_r,
  	       QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
  	       QETH_MPC_TOKEN_LENGTH);
  	memcpy(&card->info.mcl_level[0],
  	       QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
  	channel->state = CH_STATE_UP;
  out:
  	qeth_release_buffer(channel, iob);
  }
  
  void qeth_prepare_control_data(struct qeth_card *card, int len,
  		struct qeth_cmd_buffer *iob)
  {
  	qeth_setup_ccw(&card->write, iob->data, len);
  	iob->callback = qeth_release_buffer;
  
  	memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
  	       &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
  	card->seqno.trans_hdr++;
  	memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
  	       &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
  	card->seqno.pdu_hdr++;
  	memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
  	       &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
  	QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
  }
  EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
  
  /**
   * qeth_send_control_data() -	send control command to the card
   * @card:			qeth_card structure pointer
   * @len:			size of the command buffer
   * @iob:			qeth_cmd_buffer pointer
   * @reply_cb:			callback function pointer
   * @cb_card:			pointer to the qeth_card structure
   * @cb_reply:			pointer to the qeth_reply structure
   * @cb_cmd:			pointer to the original iob for non-IPA
   *				commands, or to the qeth_ipa_cmd structure
   *				for the IPA commands.
   * @reply_param:		private pointer passed to the callback
   *
   * Returns the value of the `return_code' field of the response
   * block returned from the hardware, or other error indication.
   * Value of zero indicates successful execution of the command.
   *
   * Callback function gets called one or more times, with cb_cmd
   * pointing to the response returned by the hardware. Callback
   * function must return non-zero if more reply blocks are expected,
   * and zero if the last or only reply block is received. Callback
   * function can get the value of the reply_param pointer from the
   * field 'param' of the structure qeth_reply.
   */
  
  int qeth_send_control_data(struct qeth_card *card, int len,
  		struct qeth_cmd_buffer *iob,
  		int (*reply_cb)(struct qeth_card *cb_card,
  				struct qeth_reply *cb_reply,
  				unsigned long cb_cmd),
  		void *reply_param)
  {
  	int rc;
  	unsigned long flags;
  	struct qeth_reply *reply = NULL;
  	unsigned long timeout, event_timeout;
  	struct qeth_ipa_cmd *cmd;
  
  	QETH_CARD_TEXT(card, 2, "sendctl");
  
  	if (card->read_or_write_problem) {
  		qeth_release_buffer(iob->channel, iob);
  		return -EIO;
  	}
  	reply = qeth_alloc_reply(card);
  	if (!reply) {
  		return -ENOMEM;
  	}
  	reply->callback = reply_cb;
  	reply->param = reply_param;
  	if (card->state == CARD_STATE_DOWN)
  		reply->seqno = QETH_IDX_COMMAND_SEQNO;
  	else
  		reply->seqno = card->seqno.ipa++;
  	init_waitqueue_head(&reply->wait_q);
  	spin_lock_irqsave(&card->lock, flags);
  	list_add_tail(&reply->list, &card->cmd_waiter_list);
  	spin_unlock_irqrestore(&card->lock, flags);
  	QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
  
  	while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
  	qeth_prepare_control_data(card, len, iob);
  
  	if (IS_IPA(iob->data))
  		event_timeout = QETH_IPA_TIMEOUT;
  	else
  		event_timeout = QETH_TIMEOUT;
  	timeout = jiffies + event_timeout;
  
  	QETH_CARD_TEXT(card, 6, "noirqpnd");
  	spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
  	rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
  			      (addr_t) iob, 0, 0);
  	spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
  	if (rc) {
  		QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
  			"ccw_device_start rc = %i\n",
  			dev_name(&card->write.ccwdev->dev), rc);
  		QETH_CARD_TEXT_(card, 2, " err%d", rc);
  		spin_lock_irqsave(&card->lock, flags);
  		list_del_init(&reply->list);
  		qeth_put_reply(reply);
  		spin_unlock_irqrestore(&card->lock, flags);
  		qeth_release_buffer(iob->channel, iob);
  		atomic_set(&card->write.irq_pending, 0);
  		wake_up(&card->wait_q);
  		return rc;
  	}
  
  	/* we have only one long running ipassist, since we can ensure
  	   process context of this command we can sleep */
  	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
  	if ((cmd->hdr.command == IPA_CMD_SETIP) &&
  	    (cmd->hdr.prot_version == QETH_PROT_IPV4)) {
  		if (!wait_event_timeout(reply->wait_q,
  		    atomic_read(&reply->received), event_timeout))
  			goto time_err;
  	} else {
  		while (!atomic_read(&reply->received)) {
  			if (time_after(jiffies, timeout))
  				goto time_err;
  			cpu_relax();
  		}
  	}
  
  	if (reply->rc == -EIO)
  		goto error;
  	rc = reply->rc;
  	qeth_put_reply(reply);
  	return rc;
  
  time_err:
  	reply->rc = -ETIME;
  	spin_lock_irqsave(&reply->card->lock, flags);
  	list_del_init(&reply->list);
  	spin_unlock_irqrestore(&reply->card->lock, flags);
  	atomic_inc(&reply->received);
  error:
  	atomic_set(&card->write.irq_pending, 0);
  	qeth_release_buffer(iob->channel, iob);
  	card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO;
  	rc = reply->rc;
  	qeth_put_reply(reply);
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_send_control_data);
  
  static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
  		unsigned long data)
  {
  	struct qeth_cmd_buffer *iob;
  
  	QETH_DBF_TEXT(SETUP, 2, "cmenblcb");
  
  	iob = (struct qeth_cmd_buffer *) data;
  	memcpy(&card->token.cm_filter_r,
  	       QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
  	       QETH_MPC_TOKEN_LENGTH);
  	QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
  	return 0;
  }
  
  static int qeth_cm_enable(struct qeth_card *card)
  {
  	int rc;
  	struct qeth_cmd_buffer *iob;
  
  	QETH_DBF_TEXT(SETUP, 2, "cmenable");
  
  	iob = qeth_wait_for_buffer(&card->write);
  	memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
  	memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
  	       &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
  	memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
  	       &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
  
  	rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
  				    qeth_cm_enable_cb, NULL);
  	return rc;
  }
  
  static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
  		unsigned long data)
  {
  
  	struct qeth_cmd_buffer *iob;
  
  	QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
  
  	iob = (struct qeth_cmd_buffer *) data;
  	memcpy(&card->token.cm_connection_r,
  	       QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
  	       QETH_MPC_TOKEN_LENGTH);
  	QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
  	return 0;
  }
  
  static int qeth_cm_setup(struct qeth_card *card)
  {
  	int rc;
  	struct qeth_cmd_buffer *iob;
  
  	QETH_DBF_TEXT(SETUP, 2, "cmsetup");
  
  	iob = qeth_wait_for_buffer(&card->write);
  	memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
  	memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
  	       &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
  	memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
  	       &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
  	memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
  	       &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
  	rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
  				    qeth_cm_setup_cb, NULL);
  	return rc;
  
  }
  
  static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
  {
  	switch (card->info.type) {
  	case QETH_CARD_TYPE_UNKNOWN:
  		return 1500;
  	case QETH_CARD_TYPE_IQD:
  		return card->info.max_mtu;
  	case QETH_CARD_TYPE_OSD:
  		switch (card->info.link_type) {
  		case QETH_LINK_TYPE_HSTR:
  		case QETH_LINK_TYPE_LANE_TR:
  			return 2000;
  		default:
  			return card->options.layer2 ? 1500 : 1492;
  		}
  	case QETH_CARD_TYPE_OSM:
  	case QETH_CARD_TYPE_OSX:
  		return card->options.layer2 ? 1500 : 1492;
  	default:
  		return 1500;
  	}
  }
  
  static inline int qeth_get_mtu_outof_framesize(int framesize)
  {
  	switch (framesize) {
  	case 0x4000:
  		return 8192;
  	case 0x6000:
  		return 16384;
  	case 0xa000:
  		return 32768;
  	case 0xffff:
  		return 57344;
  	default:
  		return 0;
  	}
  }
  
  static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
  {
  	switch (card->info.type) {
  	case QETH_CARD_TYPE_OSD:
  	case QETH_CARD_TYPE_OSM:
  	case QETH_CARD_TYPE_OSX:
  	case QETH_CARD_TYPE_IQD:
  		return ((mtu >= 576) &&
  			(mtu <= card->info.max_mtu));
  	case QETH_CARD_TYPE_OSN:
  	case QETH_CARD_TYPE_UNKNOWN:
  	default:
  		return 1;
  	}
  }
  
  static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
  		unsigned long data)
  {
  
  	__u16 mtu, framesize;
  	__u16 len;
  	__u8 link_type;
  	struct qeth_cmd_buffer *iob;
  
  	QETH_DBF_TEXT(SETUP, 2, "ulpenacb");
  
  	iob = (struct qeth_cmd_buffer *) data;
  	memcpy(&card->token.ulp_filter_r,
  	       QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
  	       QETH_MPC_TOKEN_LENGTH);
  	if (card->info.type == QETH_CARD_TYPE_IQD) {
  		memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
  		mtu = qeth_get_mtu_outof_framesize(framesize);
  		if (!mtu) {
  			iob->rc = -EINVAL;
  			QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
  			return 0;
  		}
  		if (card->info.initial_mtu && (card->info.initial_mtu != mtu)) {
  			/* frame size has changed */
  			if (card->dev &&
  			    ((card->dev->mtu == card->info.initial_mtu) ||
  			     (card->dev->mtu > mtu)))
  				card->dev->mtu = mtu;
  			qeth_free_qdio_buffers(card);
  		}
  		card->info.initial_mtu = mtu;
  		card->info.max_mtu = mtu;
  		card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
  	} else {
  		card->info.max_mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(
  			iob->data);
  		card->info.initial_mtu = min(card->info.max_mtu,
  					qeth_get_initial_mtu_for_card(card));
  		card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
  	}
  
  	memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
  	if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
  		memcpy(&link_type,
  		       QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
  		card->info.link_type = link_type;
  	} else
  		card->info.link_type = 0;
  	QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type);
  	QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
  	return 0;
  }
  
  static int qeth_ulp_enable(struct qeth_card *card)
  {
  	int rc;
  	char prot_type;
  	struct qeth_cmd_buffer *iob;
  
  	/*FIXME: trace view callbacks*/
  	QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
  
  	iob = qeth_wait_for_buffer(&card->write);
  	memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
  
  	*(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
  		(__u8) card->info.portno;
  	if (card->options.layer2)
  		if (card->info.type == QETH_CARD_TYPE_OSN)
  			prot_type = QETH_PROT_OSN2;
  		else
  			prot_type = QETH_PROT_LAYER2;
  	else
  		prot_type = QETH_PROT_TCPIP;
  
  	memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1);
  	memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
  	       &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
  	memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
  	       &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
  	rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
  				    qeth_ulp_enable_cb, NULL);
  	return rc;
  
  }
  
  static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
  		unsigned long data)
  {
  	struct qeth_cmd_buffer *iob;
  
  	QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
  
  	iob = (struct qeth_cmd_buffer *) data;
  	memcpy(&card->token.ulp_connection_r,
  	       QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
  	       QETH_MPC_TOKEN_LENGTH);
  	if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
  		     3)) {
  		QETH_DBF_TEXT(SETUP, 2, "olmlimit");
  		dev_err(&card->gdev->dev, "A connection could not be "
  			"established because of an OLM limit\n");
  		iob->rc = -EMLINK;
  	}
  	QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
  	return 0;
  }
  
  static int qeth_ulp_setup(struct qeth_card *card)
  {
  	int rc;
  	__u16 temp;
  	struct qeth_cmd_buffer *iob;
  	struct ccw_dev_id dev_id;
  
  	QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
  
  	iob = qeth_wait_for_buffer(&card->write);
  	memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
  
  	memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
  	       &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
  	memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
  	       &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
  	memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
  	       &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
  
  	ccw_device_get_id(CARD_DDEV(card), &dev_id);
  	memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
  	temp = (card->info.cula << 8) + card->info.unit_addr2;
  	memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
  	rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
  				    qeth_ulp_setup_cb, NULL);
  	return rc;
  }
  
  static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx)
  {
  	int rc;
  	struct qeth_qdio_out_buffer *newbuf;
  
  	rc = 0;
  	newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC);
  	if (!newbuf) {
  		rc = -ENOMEM;
  		goto out;
  	}
  	newbuf->buffer = q->qdio_bufs[bidx];
  	skb_queue_head_init(&newbuf->skb_list);
  	lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key);
  	newbuf->q = q;
  	newbuf->aob = NULL;
  	newbuf->next_pending = q->bufs[bidx];
  	atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY);
  	q->bufs[bidx] = newbuf;
  	if (q->bufstates) {
  		q->bufstates[bidx].user = newbuf;
  		QETH_CARD_TEXT_(q->card, 2, "nbs%d", bidx);
  		QETH_CARD_TEXT_(q->card, 2, "%lx", (long) newbuf);
  		QETH_CARD_TEXT_(q->card, 2, "%lx",
  				(long) newbuf->next_pending);
  	}
  out:
  	return rc;
  }
  
  static void qeth_free_qdio_out_buf(struct qeth_qdio_out_q *q)
  {
  	if (!q)
  		return;
  
  	qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q);
  	kfree(q);
  }
  
  static struct qeth_qdio_out_q *qeth_alloc_qdio_out_buf(void)
  {
  	struct qeth_qdio_out_q *q = kzalloc(sizeof(*q), GFP_KERNEL);
  
  	if (!q)
  		return NULL;
  
  	if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) {
  		kfree(q);
  		return NULL;
  	}
  	return q;
  }
  
  static int qeth_alloc_qdio_buffers(struct qeth_card *card)
  {
  	int i, j;
  
  	QETH_DBF_TEXT(SETUP, 2, "allcqdbf");
  
  	if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
  		QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
  		return 0;
  
  	QETH_DBF_TEXT(SETUP, 2, "inq");
  	card->qdio.in_q = qeth_alloc_qdio_queue();
  	if (!card->qdio.in_q)
  		goto out_nomem;
  
  	/* inbound buffer pool */
  	if (qeth_alloc_buffer_pool(card))
  		goto out_freeinq;
  
  	/* outbound */
  	card->qdio.out_qs =
  		kzalloc(card->qdio.no_out_queues *
  			sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
  	if (!card->qdio.out_qs)
  		goto out_freepool;
  	for (i = 0; i < card->qdio.no_out_queues; ++i) {
  		card->qdio.out_qs[i] = qeth_alloc_qdio_out_buf();
  		if (!card->qdio.out_qs[i])
  			goto out_freeoutq;
  		QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
  		QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
  		card->qdio.out_qs[i]->queue_no = i;
  		/* give outbound qeth_qdio_buffers their qdio_buffers */
  		for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
  			WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL);
  			if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j))
  				goto out_freeoutqbufs;
  		}
  	}
  
  	/* completion */
  	if (qeth_alloc_cq(card))
  		goto out_freeoutq;
  
  	return 0;
  
  out_freeoutqbufs:
  	while (j > 0) {
  		--j;
  		kmem_cache_free(qeth_qdio_outbuf_cache,
  				card->qdio.out_qs[i]->bufs[j]);
  		card->qdio.out_qs[i]->bufs[j] = NULL;
  	}
  out_freeoutq:
  	while (i > 0) {
  		qeth_free_qdio_out_buf(card->qdio.out_qs[--i]);
  		qeth_clear_outq_buffers(card->qdio.out_qs[i], 1);
  	}
  	kfree(card->qdio.out_qs);
  	card->qdio.out_qs = NULL;
  out_freepool:
  	qeth_free_buffer_pool(card);
  out_freeinq:
  	qeth_free_qdio_queue(card->qdio.in_q);
  	card->qdio.in_q = NULL;
  out_nomem:
  	atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
  	return -ENOMEM;
  }
  
  static void qeth_free_qdio_buffers(struct qeth_card *card)
  {
  	int i, j;
  
  	if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
  		QETH_QDIO_UNINITIALIZED)
  		return;
  
  	qeth_free_cq(card);
  	cancel_delayed_work_sync(&card->buffer_reclaim_work);
  	for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
  		if (card->qdio.in_q->bufs[j].rx_skb)
  			dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb);
  	}
  	qeth_free_qdio_queue(card->qdio.in_q);
  	card->qdio.in_q = NULL;
  	/* inbound buffer pool */
  	qeth_free_buffer_pool(card);
  	/* free outbound qdio_qs */
  	if (card->qdio.out_qs) {
  		for (i = 0; i < card->qdio.no_out_queues; ++i) {
  			qeth_clear_outq_buffers(card->qdio.out_qs[i], 1);
  			qeth_free_qdio_out_buf(card->qdio.out_qs[i]);
  		}
  		kfree(card->qdio.out_qs);
  		card->qdio.out_qs = NULL;
  	}
  }
  
  static void qeth_create_qib_param_field(struct qeth_card *card,
  		char *param_field)
  {
  
  	param_field[0] = _ascebc['P'];
  	param_field[1] = _ascebc['C'];
  	param_field[2] = _ascebc['I'];
  	param_field[3] = _ascebc['T'];
  	*((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
  	*((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
  	*((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
  }
  
  static void qeth_create_qib_param_field_blkt(struct qeth_card *card,
  		char *param_field)
  {
  	param_field[16] = _ascebc['B'];
  	param_field[17] = _ascebc['L'];
  	param_field[18] = _ascebc['K'];
  	param_field[19] = _ascebc['T'];
  	*((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
  	*((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
  	*((unsigned int *) (&param_field[28])) =
  		card->info.blkt.inter_packet_jumbo;
  }
  
  static int qeth_qdio_activate(struct qeth_card *card)
  {
  	QETH_DBF_TEXT(SETUP, 3, "qdioact");
  	return qdio_activate(CARD_DDEV(card));
  }
  
  static int qeth_dm_act(struct qeth_card *card)
  {
  	int rc;
  	struct qeth_cmd_buffer *iob;
  
  	QETH_DBF_TEXT(SETUP, 2, "dmact");
  
  	iob = qeth_wait_for_buffer(&card->write);
  	memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
  
  	memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
  	       &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
  	memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
  	       &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
  	rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
  	return rc;
  }
  
  static int qeth_mpc_initialize(struct qeth_card *card)
  {
  	int rc;
  
  	QETH_DBF_TEXT(SETUP, 2, "mpcinit");
  
  	rc = qeth_issue_next_read(card);
  	if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
  		return rc;
  	}
  	rc = qeth_cm_enable(card);
  	if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
  		goto out_qdio;
  	}
  	rc = qeth_cm_setup(card);
  	if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
  		goto out_qdio;
  	}
  	rc = qeth_ulp_enable(card);
  	if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
  		goto out_qdio;
  	}
  	rc = qeth_ulp_setup(card);
  	if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
  		goto out_qdio;
  	}
  	rc = qeth_alloc_qdio_buffers(card);
  	if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
  		goto out_qdio;
  	}
  	rc = qeth_qdio_establish(card);
  	if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
  		qeth_free_qdio_buffers(card);
  		goto out_qdio;
  	}
  	rc = qeth_qdio_activate(card);
  	if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
  		goto out_qdio;
  	}
  	rc = qeth_dm_act(card);
  	if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
  		goto out_qdio;
  	}
  
  	return 0;
  out_qdio:
  	qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
  	qdio_free(CARD_DDEV(card));
  	return rc;
  }
  
  void qeth_print_status_message(struct qeth_card *card)
  {
  	switch (card->info.type) {
  	case QETH_CARD_TYPE_OSD:
  	case QETH_CARD_TYPE_OSM:
  	case QETH_CARD_TYPE_OSX:
  		/* VM will use a non-zero first character
  		 * to indicate a HiperSockets like reporting
  		 * of the level OSA sets the first character to zero
  		 * */
  		if (!card->info.mcl_level[0]) {
  			sprintf(card->info.mcl_level, "%02x%02x",
  				card->info.mcl_level[2],
  				card->info.mcl_level[3]);
  			break;
  		}
  		/* fallthrough */
  	case QETH_CARD_TYPE_IQD:
  		if ((card->info.guestlan) ||
  		    (card->info.mcl_level[0] & 0x80)) {
  			card->info.mcl_level[0] = (char) _ebcasc[(__u8)
  				card->info.mcl_level[0]];
  			card->info.mcl_level[1] = (char) _ebcasc[(__u8)
  				card->info.mcl_level[1]];
  			card->info.mcl_level[2] = (char) _ebcasc[(__u8)
  				card->info.mcl_level[2]];
  			card->info.mcl_level[3] = (char) _ebcasc[(__u8)
  				card->info.mcl_level[3]];
  			card->info.mcl_level[QETH_MCL_LENGTH] = 0;
  		}
  		break;
  	default:
  		memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
  	}
  	dev_info(&card->gdev->dev,
  		 "Device is a%s card%s%s%s\nwith link type %s.\n",
  		 qeth_get_cardname(card),
  		 (card->info.mcl_level[0]) ? " (level: " : "",
  		 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
  		 (card->info.mcl_level[0]) ? ")" : "",
  		 qeth_get_cardname_short(card));
  }
  EXPORT_SYMBOL_GPL(qeth_print_status_message);
  
  static void qeth_initialize_working_pool_list(struct qeth_card *card)
  {
  	struct qeth_buffer_pool_entry *entry;
  
  	QETH_CARD_TEXT(card, 5, "inwrklst");
  
  	list_for_each_entry(entry,
  			    &card->qdio.init_pool.entry_list, init_list) {
  		qeth_put_buffer_pool_entry(card, entry);
  	}
  }
  
  static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
  		struct qeth_card *card)
  {
  	struct list_head *plh;
  	struct qeth_buffer_pool_entry *entry;
  	int i, free;
  	struct page *page;
  
  	if (list_empty(&card->qdio.in_buf_pool.entry_list))
  		return NULL;
  
  	list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
  		entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
  		free = 1;
  		for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
  			if (page_count(virt_to_page(entry->elements[i])) > 1) {
  				free = 0;
  				break;
  			}
  		}
  		if (free) {
  			list_del_init(&entry->list);
  			return entry;
  		}
  	}
  
  	/* no free buffer in pool so take first one and swap pages */
  	entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
  			struct qeth_buffer_pool_entry, list);
  	for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
  		if (page_count(virt_to_page(entry->elements[i])) > 1) {
  			page = alloc_page(GFP_ATOMIC);
  			if (!page) {
  				return NULL;
  			} else {
  				free_page((unsigned long)entry->elements[i]);
  				entry->elements[i] = page_address(page);
  				if (card->options.performance_stats)
  					card->perf_stats.sg_alloc_page_rx++;
  			}
  		}
  	}
  	list_del_init(&entry->list);
  	return entry;
  }
  
  static int qeth_init_input_buffer(struct qeth_card *card,
  		struct qeth_qdio_buffer *buf)
  {
  	struct qeth_buffer_pool_entry *pool_entry;
  	int i;
  
  	if ((card->options.cq == QETH_CQ_ENABLED) && (!buf->rx_skb)) {
  		buf->rx_skb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN);
  		if (!buf->rx_skb)
  			return 1;
  	}
  
  	pool_entry = qeth_find_free_buffer_pool_entry(card);
  	if (!pool_entry)
  		return 1;
  
  	/*
  	 * since the buffer is accessed only from the input_tasklet
  	 * there shouldn't be a need to synchronize; also, since we use
  	 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
  	 * buffers
  	 */
  
  	buf->pool_entry = pool_entry;
  	for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
  		buf->buffer->element[i].length = PAGE_SIZE;
  		buf->buffer->element[i].addr =  pool_entry->elements[i];
  		if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
  			buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY;
  		else
  			buf->buffer->element[i].eflags = 0;
  		buf->buffer->element[i].sflags = 0;
  	}
  	return 0;
  }
  
  int qeth_init_qdio_queues(struct qeth_card *card)
  {
  	int i, j;
  	int rc;
  
  	QETH_DBF_TEXT(SETUP, 2, "initqdqs");
  
  	/* inbound queue */
  	qdio_reset_buffers(card->qdio.in_q->qdio_bufs,
  			   QDIO_MAX_BUFFERS_PER_Q);
  	qeth_initialize_working_pool_list(card);
  	/*give only as many buffers to hardware as we have buffer pool entries*/
  	for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
  		qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
  	card->qdio.in_q->next_buf_to_init =
  		card->qdio.in_buf_pool.buf_count - 1;
  	rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
  		     card->qdio.in_buf_pool.buf_count - 1);
  	if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
  		return rc;
  	}
  
  	/* completion */
  	rc = qeth_cq_init(card);
  	if (rc) {
  		return rc;
  	}
  
  	/* outbound queue */
  	for (i = 0; i < card->qdio.no_out_queues; ++i) {
  		qdio_reset_buffers(card->qdio.out_qs[i]->qdio_bufs,
  				   QDIO_MAX_BUFFERS_PER_Q);
  		for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
  			qeth_clear_output_buffer(card->qdio.out_qs[i],
  					card->qdio.out_qs[i]->bufs[j],
  					QETH_QDIO_BUF_EMPTY);
  		}
  		card->qdio.out_qs[i]->card = card;
  		card->qdio.out_qs[i]->next_buf_to_fill = 0;
  		card->qdio.out_qs[i]->do_pack = 0;
  		atomic_set(&card->qdio.out_qs[i]->used_buffers, 0);
  		atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
  		atomic_set(&card->qdio.out_qs[i]->state,
  			   QETH_OUT_Q_UNLOCKED);
  	}
  	return 0;
  }
  EXPORT_SYMBOL_GPL(qeth_init_qdio_queues);
  
  static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
  {
  	switch (link_type) {
  	case QETH_LINK_TYPE_HSTR:
  		return 2;
  	default:
  		return 1;
  	}
  }
  
  static void qeth_fill_ipacmd_header(struct qeth_card *card,
  		struct qeth_ipa_cmd *cmd, __u8 command,
  		enum qeth_prot_versions prot)
  {
  	memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
  	cmd->hdr.command = command;
  	cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
  	cmd->hdr.seqno = card->seqno.ipa;
  	cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
  	cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
  	if (card->options.layer2)
  		cmd->hdr.prim_version_no = 2;
  	else
  		cmd->hdr.prim_version_no = 1;
  	cmd->hdr.param_count = 1;
  	cmd->hdr.prot_version = prot;
  	cmd->hdr.ipa_supported = 0;
  	cmd->hdr.ipa_enabled = 0;
  }
  
  struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
  		enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
  {
  	struct qeth_cmd_buffer *iob;
  	struct qeth_ipa_cmd *cmd;
  
  	iob = qeth_get_buffer(&card->write);
  	if (iob) {
  		cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
  		qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
  	} else {
  		dev_warn(&card->gdev->dev,
  			 "The qeth driver ran out of channel command buffers\n");
  		QETH_DBF_MESSAGE(1, "%s The qeth driver ran out of channel command buffers",
  				 dev_name(&card->gdev->dev));
  	}
  
  	return iob;
  }
  EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
  
  void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
  		char prot_type)
  {
  	memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
  	memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
  	memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
  	       &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
  }
  EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
  
  /**
   * qeth_send_ipa_cmd() - send an IPA command
   *
   * See qeth_send_control_data() for explanation of the arguments.
   */
  
  int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
  		int (*reply_cb)(struct qeth_card *, struct qeth_reply*,
  			unsigned long),
  		void *reply_param)
  {
  	int rc;
  	char prot_type;
  
  	QETH_CARD_TEXT(card, 4, "sendipa");
  
  	if (card->options.layer2)
  		if (card->info.type == QETH_CARD_TYPE_OSN)
  			prot_type = QETH_PROT_OSN2;
  		else
  			prot_type = QETH_PROT_LAYER2;
  	else
  		prot_type = QETH_PROT_TCPIP;
  	qeth_prepare_ipa_cmd(card, iob, prot_type);
  	rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
  						iob, reply_cb, reply_param);
  	if (rc == -ETIME) {
  		qeth_clear_ipacmd_list(card);
  		qeth_schedule_recovery(card);
  	}
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
  
  int qeth_send_startlan(struct qeth_card *card)
  {
  	int rc;
  	struct qeth_cmd_buffer *iob;
  
  	QETH_DBF_TEXT(SETUP, 2, "strtlan");
  
  	iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0);
  	if (!iob)
  		return -ENOMEM;
  	rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_send_startlan);
  
  static int qeth_default_setadapterparms_cb(struct qeth_card *card,
  		struct qeth_reply *reply, unsigned long data)
  {
  	struct qeth_ipa_cmd *cmd;
  
  	QETH_CARD_TEXT(card, 4, "defadpcb");
  
  	cmd = (struct qeth_ipa_cmd *) data;
  	if (cmd->hdr.return_code == 0)
  		cmd->hdr.return_code =
  			cmd->data.setadapterparms.hdr.return_code;
  	return 0;
  }
  
  static int qeth_query_setadapterparms_cb(struct qeth_card *card,
  		struct qeth_reply *reply, unsigned long data)
  {
  	struct qeth_ipa_cmd *cmd;
  
  	QETH_CARD_TEXT(card, 3, "quyadpcb");
  
  	cmd = (struct qeth_ipa_cmd *) data;
  	if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) {
  		card->info.link_type =
  		      cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
  		QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type);
  	}
  	card->options.adp.supported_funcs =
  		cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
  	return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
  }
  
  static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
  		__u32 command, __u32 cmdlen)
  {
  	struct qeth_cmd_buffer *iob;
  	struct qeth_ipa_cmd *cmd;
  
  	iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS,
  				     QETH_PROT_IPV4);
  	if (iob) {
  		cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
  		cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
  		cmd->data.setadapterparms.hdr.command_code = command;
  		cmd->data.setadapterparms.hdr.used_total = 1;
  		cmd->data.setadapterparms.hdr.seq_no = 1;
  	}
  
  	return iob;
  }
  
  int qeth_query_setadapterparms(struct qeth_card *card)
  {
  	int rc;
  	struct qeth_cmd_buffer *iob;
  
  	QETH_CARD_TEXT(card, 3, "queryadp");
  	iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
  				   sizeof(struct qeth_ipacmd_setadpparms));
  	if (!iob)
  		return -ENOMEM;
  	rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
  
  static int qeth_query_ipassists_cb(struct qeth_card *card,
  		struct qeth_reply *reply, unsigned long data)
  {
  	struct qeth_ipa_cmd *cmd;
  
  	QETH_DBF_TEXT(SETUP, 2, "qipasscb");
  
  	cmd = (struct qeth_ipa_cmd *) data;
  
  	switch (cmd->hdr.return_code) {
  	case IPA_RC_NOTSUPP:
  	case IPA_RC_L2_UNSUPPORTED_CMD:
  		QETH_DBF_TEXT(SETUP, 2, "ipaunsup");
  		card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS;
  		card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS;
  		return -0;
  	default:
  		if (cmd->hdr.return_code) {
  			QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled "
  						"rc=%d\n",
  						dev_name(&card->gdev->dev),
  						cmd->hdr.return_code);
  			return 0;
  		}
  	}
  
  	if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
  		card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
  		card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
  	} else if (cmd->hdr.prot_version == QETH_PROT_IPV6) {
  		card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
  		card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
  	} else
  		QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected"
  					"\n", dev_name(&card->gdev->dev));
  	return 0;
  }
  
  int qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
  {
  	int rc;
  	struct qeth_cmd_buffer *iob;
  
  	QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot);
  	iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot);
  	if (!iob)
  		return -ENOMEM;
  	rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_query_ipassists);
  
  static int qeth_query_switch_attributes_cb(struct qeth_card *card,
  				struct qeth_reply *reply, unsigned long data)
  {
  	struct qeth_ipa_cmd *cmd;
  	struct qeth_switch_info *sw_info;
  	struct qeth_query_switch_attributes *attrs;
  
  	QETH_CARD_TEXT(card, 2, "qswiatcb");
  	cmd = (struct qeth_ipa_cmd *) data;
  	sw_info = (struct qeth_switch_info *)reply->param;
  	if (cmd->data.setadapterparms.hdr.return_code == 0) {
  		attrs = &cmd->data.setadapterparms.data.query_switch_attributes;
  		sw_info->capabilities = attrs->capabilities;
  		sw_info->settings = attrs->settings;
  		QETH_CARD_TEXT_(card, 2, "%04x%04x", sw_info->capabilities,
  							sw_info->settings);
  	}
  	qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
  
  	return 0;
  }
  
  int qeth_query_switch_attributes(struct qeth_card *card,
  				 struct qeth_switch_info *sw_info)
  {
  	struct qeth_cmd_buffer *iob;
  
  	QETH_CARD_TEXT(card, 2, "qswiattr");
  	if (!qeth_adp_supported(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES))
  		return -EOPNOTSUPP;
  	if (!netif_carrier_ok(card->dev))
  		return -ENOMEDIUM;
  	iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES,
  				sizeof(struct qeth_ipacmd_setadpparms_hdr));
  	if (!iob)
  		return -ENOMEM;
  	return qeth_send_ipa_cmd(card, iob,
  				qeth_query_switch_attributes_cb, sw_info);
  }
  EXPORT_SYMBOL_GPL(qeth_query_switch_attributes);
  
  static int qeth_query_setdiagass_cb(struct qeth_card *card,
  		struct qeth_reply *reply, unsigned long data)
  {
  	struct qeth_ipa_cmd *cmd;
  	__u16 rc;
  
  	cmd = (struct qeth_ipa_cmd *)data;
  	rc = cmd->hdr.return_code;
  	if (rc)
  		QETH_CARD_TEXT_(card, 2, "diagq:%x", rc);
  	else
  		card->info.diagass_support = cmd->data.diagass.ext;
  	return 0;
  }
  
  static int qeth_query_setdiagass(struct qeth_card *card)
  {
  	struct qeth_cmd_buffer *iob;
  	struct qeth_ipa_cmd    *cmd;
  
  	QETH_DBF_TEXT(SETUP, 2, "qdiagass");
  	iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
  	if (!iob)
  		return -ENOMEM;
  	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
  	cmd->data.diagass.subcmd_len = 16;
  	cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY;
  	return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL);
  }
  
  static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid)
  {
  	unsigned long info = get_zeroed_page(GFP_KERNEL);
  	struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info;
  	struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info;
  	struct ccw_dev_id ccwid;
  	int level;
  
  	tid->chpid = card->info.chpid;
  	ccw_device_get_id(CARD_RDEV(card), &ccwid);
  	tid->ssid = ccwid.ssid;
  	tid->devno = ccwid.devno;
  	if (!info)
  		return;
  	level = stsi(NULL, 0, 0, 0);
  	if ((level >= 2) && (stsi(info222, 2, 2, 2) == 0))
  		tid->lparnr = info222->lpar_number;
  	if ((level >= 3) && (stsi(info322, 3, 2, 2) == 0)) {
  		EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name));
  		memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname));
  	}
  	free_page(info);
  	return;
  }
  
  static int qeth_hw_trap_cb(struct qeth_card *card,
  		struct qeth_reply *reply, unsigned long data)
  {
  	struct qeth_ipa_cmd *cmd;
  	__u16 rc;
  
  	cmd = (struct qeth_ipa_cmd *)data;
  	rc = cmd->hdr.return_code;
  	if (rc)
  		QETH_CARD_TEXT_(card, 2, "trapc:%x", rc);
  	return 0;
  }
  
  int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action)
  {
  	struct qeth_cmd_buffer *iob;
  	struct qeth_ipa_cmd *cmd;
  
  	QETH_DBF_TEXT(SETUP, 2, "diagtrap");
  	iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
  	if (!iob)
  		return -ENOMEM;
  	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
  	cmd->data.diagass.subcmd_len = 80;
  	cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP;
  	cmd->data.diagass.type = 1;
  	cmd->data.diagass.action = action;
  	switch (action) {
  	case QETH_DIAGS_TRAP_ARM:
  		cmd->data.diagass.options = 0x0003;
  		cmd->data.diagass.ext = 0x00010000 +
  			sizeof(struct qeth_trap_id);
  		qeth_get_trap_id(card,
  			(struct qeth_trap_id *)cmd->data.diagass.cdata);
  		break;
  	case QETH_DIAGS_TRAP_DISARM:
  		cmd->data.diagass.options = 0x0001;
  		break;
  	case QETH_DIAGS_TRAP_CAPTURE:
  		break;
  	}
  	return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL);
  }
  EXPORT_SYMBOL_GPL(qeth_hw_trap);
  
  int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf,
  		unsigned int qdio_error, const char *dbftext)
  {
  	if (qdio_error) {
  		QETH_CARD_TEXT(card, 2, dbftext);
  		QETH_CARD_TEXT_(card, 2, " F15=%02X",
  			       buf->element[15].sflags);
  		QETH_CARD_TEXT_(card, 2, " F14=%02X",
  			       buf->element[14].sflags);
  		QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error);
  		if ((buf->element[15].sflags) == 0x12) {
  			card->stats.rx_dropped++;
  			return 0;
  		} else
  			return 1;
  	}
  	return 0;
  }
  EXPORT_SYMBOL_GPL(qeth_check_qdio_errors);
  
  static void qeth_buffer_reclaim_work(struct work_struct *work)
  {
  	struct qeth_card *card = container_of(work, struct qeth_card,
  		buffer_reclaim_work.work);
  
  	QETH_CARD_TEXT_(card, 2, "brw:%x", card->reclaim_index);
  	qeth_queue_input_buffer(card, card->reclaim_index);
  }
  
  void qeth_queue_input_buffer(struct qeth_card *card, int index)
  {
  	struct qeth_qdio_q *queue = card->qdio.in_q;
  	struct list_head *lh;
  	int count;
  	int i;
  	int rc;
  	int newcount = 0;
  
  	count = (index < queue->next_buf_to_init)?
  		card->qdio.in_buf_pool.buf_count -
  		(queue->next_buf_to_init - index) :
  		card->qdio.in_buf_pool.buf_count -
  		(queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
  	/* only requeue at a certain threshold to avoid SIGAs */
  	if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) {
  		for (i = queue->next_buf_to_init;
  		     i < queue->next_buf_to_init + count; ++i) {
  			if (qeth_init_input_buffer(card,
  				&queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
  				break;
  			} else {
  				newcount++;
  			}
  		}
  
  		if (newcount < count) {
  			/* we are in memory shortage so we switch back to
  			   traditional skb allocation and drop packages */
  			atomic_set(&card->force_alloc_skb, 3);
  			count = newcount;
  		} else {
  			atomic_add_unless(&card->force_alloc_skb, -1, 0);
  		}
  
  		if (!count) {
  			i = 0;
  			list_for_each(lh, &card->qdio.in_buf_pool.entry_list)
  				i++;
  			if (i == card->qdio.in_buf_pool.buf_count) {
  				QETH_CARD_TEXT(card, 2, "qsarbw");
  				card->reclaim_index = index;
  				schedule_delayed_work(
  					&card->buffer_reclaim_work,
  					QETH_RECLAIM_WORK_TIME);
  			}
  			return;
  		}
  
  		/*
  		 * according to old code it should be avoided to requeue all
  		 * 128 buffers in order to benefit from PCI avoidance.
  		 * this function keeps at least one buffer (the buffer at
  		 * 'index') un-requeued -> this buffer is the first buffer that
  		 * will be requeued the next time
  		 */
  		if (card->options.performance_stats) {
  			card->perf_stats.inbound_do_qdio_cnt++;
  			card->perf_stats.inbound_do_qdio_start_time =
  				qeth_get_micros();
  		}
  		rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0,
  			     queue->next_buf_to_init, count);
  		if (card->options.performance_stats)
  			card->perf_stats.inbound_do_qdio_time +=
  				qeth_get_micros() -
  				card->perf_stats.inbound_do_qdio_start_time;
  		if (rc) {
  			QETH_CARD_TEXT(card, 2, "qinberr");
  		}
  		queue->next_buf_to_init = (queue->next_buf_to_init + count) %
  					  QDIO_MAX_BUFFERS_PER_Q;
  	}
  }
  EXPORT_SYMBOL_GPL(qeth_queue_input_buffer);
  
  static int qeth_handle_send_error(struct qeth_card *card,
  		struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
  {
  	int sbalf15 = buffer->buffer->element[15].sflags;
  
  	QETH_CARD_TEXT(card, 6, "hdsnderr");
  	if (card->info.type == QETH_CARD_TYPE_IQD) {
  		if (sbalf15 == 0) {
  			qdio_err = 0;
  		} else {
  			qdio_err = 1;
  		}
  	}
  	qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr");
  
  	if (!qdio_err)
  		return QETH_SEND_ERROR_NONE;
  
  	if ((sbalf15 >= 15) && (sbalf15 <= 31))
  		return QETH_SEND_ERROR_RETRY;
  
  	QETH_CARD_TEXT(card, 1, "lnkfail");
  	QETH_CARD_TEXT_(card, 1, "%04x %02x",
  		       (u16)qdio_err, (u8)sbalf15);
  	return QETH_SEND_ERROR_LINK_FAILURE;
  }
  
  /*
   * Switched to packing state if the number of used buffers on a queue
   * reaches a certain limit.
   */
  static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
  {
  	if (!queue->do_pack) {
  		if (atomic_read(&queue->used_buffers)
  		    >= QETH_HIGH_WATERMARK_PACK){
  			/* switch non-PACKING -> PACKING */
  			QETH_CARD_TEXT(queue->card, 6, "np->pack");
  			if (queue->card->options.performance_stats)
  				queue->card->perf_stats.sc_dp_p++;
  			queue->do_pack = 1;
  		}
  	}
  }
  
  /*
   * Switches from packing to non-packing mode. If there is a packing
   * buffer on the queue this buffer will be prepared to be flushed.
   * In that case 1 is returned to inform the caller. If no buffer
   * has to be flushed, zero is returned.
   */
  static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
  {
  	struct qeth_qdio_out_buffer *buffer;
  	int flush_count = 0;
  
  	if (queue->do_pack) {
  		if (atomic_read(&queue->used_buffers)
  		    <= QETH_LOW_WATERMARK_PACK) {
  			/* switch PACKING -> non-PACKING */
  			QETH_CARD_TEXT(queue->card, 6, "pack->np");
  			if (queue->card->options.performance_stats)
  				queue->card->perf_stats.sc_p_dp++;
  			queue->do_pack = 0;
  			/* flush packing buffers */
  			buffer = queue->bufs[queue->next_buf_to_fill];
  			if ((atomic_read(&buffer->state) ==
  						QETH_QDIO_BUF_EMPTY) &&
  			    (buffer->next_element_to_fill > 0)) {
  				atomic_set(&buffer->state,
  					   QETH_QDIO_BUF_PRIMED);
  				flush_count++;
  				queue->next_buf_to_fill =
  					(queue->next_buf_to_fill + 1) %
  					QDIO_MAX_BUFFERS_PER_Q;
  			}
  		}
  	}
  	return flush_count;
  }
  
  
  /*
   * Called to flush a packing buffer if no more pci flags are on the queue.
   * Checks if there is a packing buffer and prepares it to be flushed.
   * In that case returns 1, otherwise zero.
   */
  static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
  {
  	struct qeth_qdio_out_buffer *buffer;
  
  	buffer = queue->bufs[queue->next_buf_to_fill];
  	if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
  	   (buffer->next_element_to_fill > 0)) {
  		/* it's a packing buffer */
  		atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
  		queue->next_buf_to_fill =
  			(queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
  		return 1;
  	}
  	return 0;
  }
  
  static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
  			       int count)
  {
  	struct qeth_qdio_out_buffer *buf;
  	int rc;
  	int i;
  	unsigned int qdio_flags;
  
  	for (i = index; i < index + count; ++i) {
  		int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
  		buf = queue->bufs[bidx];
  		buf->buffer->element[buf->next_element_to_fill - 1].eflags |=
  				SBAL_EFLAGS_LAST_ENTRY;
  
  		if (queue->bufstates)
  			queue->bufstates[bidx].user = buf;
  
  		if (queue->card->info.type == QETH_CARD_TYPE_IQD)
  			continue;
  
  		if (!queue->do_pack) {
  			if ((atomic_read(&queue->used_buffers) >=
  				(QETH_HIGH_WATERMARK_PACK -
  				 QETH_WATERMARK_PACK_FUZZ)) &&
  			    !atomic_read(&queue->set_pci_flags_count)) {
  				/* it's likely that we'll go to packing
  				 * mode soon */
  				atomic_inc(&queue->set_pci_flags_count);
  				buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ;
  			}
  		} else {
  			if (!atomic_read(&queue->set_pci_flags_count)) {
  				/*
  				 * there's no outstanding PCI any more, so we
  				 * have to request a PCI to be sure the the PCI
  				 * will wake at some time in the future then we
  				 * can flush packed buffers that might still be
  				 * hanging around, which can happen if no
  				 * further send was requested by the stack
  				 */
  				atomic_inc(&queue->set_pci_flags_count);
  				buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ;
  			}
  		}
  	}
  
  	netif_trans_update(queue->card->dev);
  	if (queue->card->options.performance_stats) {
  		queue->card->perf_stats.outbound_do_qdio_cnt++;
  		queue->card->perf_stats.outbound_do_qdio_start_time =
  			qeth_get_micros();
  	}
  	qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
  	if (atomic_read(&queue->set_pci_flags_count))
  		qdio_flags |= QDIO_FLAG_PCI_OUT;
  	rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
  		     queue->queue_no, index, count);
  	if (queue->card->options.performance_stats)
  		queue->card->perf_stats.outbound_do_qdio_time +=
  			qeth_get_micros() -
  			queue->card->perf_stats.outbound_do_qdio_start_time;
  	atomic_add(count, &queue->used_buffers);
  	if (rc) {
  		queue->card->stats.tx_errors += count;
  		/* ignore temporary SIGA errors without busy condition */
  		if (rc == -ENOBUFS)
  			return;
  		QETH_CARD_TEXT(queue->card, 2, "flushbuf");
  		QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no);
  		QETH_CARD_TEXT_(queue->card, 2, " idx%d", index);
  		QETH_CARD_TEXT_(queue->card, 2, " c%d", count);
  		QETH_CARD_TEXT_(queue->card, 2, " err%d", rc);
  
  		/* this must not happen under normal circumstances. if it
  		 * happens something is really wrong -> recover */
  		qeth_schedule_recovery(queue->card);
  		return;
  	}
  	if (queue->card->options.performance_stats)
  		queue->card->perf_stats.bufs_sent += count;
  }
  
  static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
  {
  	int index;
  	int flush_cnt = 0;
  	int q_was_packing = 0;
  
  	/*
  	 * check if weed have to switch to non-packing mode or if
  	 * we have to get a pci flag out on the queue
  	 */
  	if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
  	    !atomic_read(&queue->set_pci_flags_count)) {
  		if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
  				QETH_OUT_Q_UNLOCKED) {
  			/*
  			 * If we get in here, there was no action in
  			 * do_send_packet. So, we check if there is a
  			 * packing buffer to be flushed here.
  			 */
  			netif_stop_queue(queue->card->dev);
  			index = queue->next_buf_to_fill;
  			q_was_packing = queue->do_pack;
  			/* queue->do_pack may change */
  			barrier();
  			flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
  			if (!flush_cnt &&
  			    !atomic_read(&queue->set_pci_flags_count))
  				flush_cnt +=
  					qeth_flush_buffers_on_no_pci(queue);
  			if (queue->card->options.performance_stats &&
  			    q_was_packing)
  				queue->card->perf_stats.bufs_sent_pack +=
  					flush_cnt;
  			if (flush_cnt)
  				qeth_flush_buffers(queue, index, flush_cnt);
  			atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
  		}
  	}
  }
  
  void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue,
  		unsigned long card_ptr)
  {
  	struct qeth_card *card = (struct qeth_card *)card_ptr;
  
  	if (card->dev && (card->dev->flags & IFF_UP))
  		napi_schedule(&card->napi);
  }
  EXPORT_SYMBOL_GPL(qeth_qdio_start_poll);
  
  int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq)
  {
  	int rc;
  
  	if (card->options.cq ==  QETH_CQ_NOTAVAILABLE) {
  		rc = -1;
  		goto out;
  	} else {
  		if (card->options.cq == cq) {
  			rc = 0;
  			goto out;
  		}
  
  		if (card->state != CARD_STATE_DOWN &&
  		    card->state != CARD_STATE_RECOVER) {
  			rc = -1;
  			goto out;
  		}
  
  		qeth_free_qdio_buffers(card);
  		card->options.cq = cq;
  		rc = 0;
  	}
  out:
  	return rc;
  
  }
  EXPORT_SYMBOL_GPL(qeth_configure_cq);
  
  
  static void qeth_qdio_cq_handler(struct qeth_card *card,
  		unsigned int qdio_err,
  		unsigned int queue, int first_element, int count) {
  	struct qeth_qdio_q *cq = card->qdio.c_q;
  	int i;
  	int rc;
  
  	if (!qeth_is_cq(card, queue))
  		goto out;
  
  	QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element);
  	QETH_CARD_TEXT_(card, 5, "qcqhc%d", count);
  	QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err);
  
  	if (qdio_err) {
  		netif_stop_queue(card->dev);
  		qeth_schedule_recovery(card);
  		goto out;
  	}
  
  	if (card->options.performance_stats) {
  		card->perf_stats.cq_cnt++;
  		card->perf_stats.cq_start_time = qeth_get_micros();
  	}
  
  	for (i = first_element; i < first_element + count; ++i) {
  		int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
  		struct qdio_buffer *buffer = cq->qdio_bufs[bidx];
  		int e;
  
  		e = 0;
  		while (buffer->element[e].addr) {
  			unsigned long phys_aob_addr;
  
  			phys_aob_addr = (unsigned long) buffer->element[e].addr;
  			qeth_qdio_handle_aob(card, phys_aob_addr);
  			buffer->element[e].addr = NULL;
  			buffer->element[e].eflags = 0;
  			buffer->element[e].sflags = 0;
  			buffer->element[e].length = 0;
  
  			++e;
  		}
  
  		buffer->element[15].eflags = 0;
  		buffer->element[15].sflags = 0;
  	}
  	rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue,
  		    card->qdio.c_q->next_buf_to_init,
  		    count);
  	if (rc) {
  		dev_warn(&card->gdev->dev,
  			"QDIO reported an error, rc=%i\n", rc);
  		QETH_CARD_TEXT(card, 2, "qcqherr");
  	}
  	card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init
  				   + count) % QDIO_MAX_BUFFERS_PER_Q;
  
  	netif_wake_queue(card->dev);
  
  	if (card->options.performance_stats) {
  		int delta_t = qeth_get_micros();
  		delta_t -= card->perf_stats.cq_start_time;
  		card->perf_stats.cq_time += delta_t;
  	}
  out:
  	return;
  }
  
  void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err,
  		unsigned int queue, int first_elem, int count,
  		unsigned long card_ptr)
  {
  	struct qeth_card *card = (struct qeth_card *)card_ptr;
  
  	QETH_CARD_TEXT_(card, 2, "qihq%d", queue);
  	QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err);
  
  	if (qeth_is_cq(card, queue))
  		qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count);
  	else if (qdio_err)
  		qeth_schedule_recovery(card);
  
  
  }
  EXPORT_SYMBOL_GPL(qeth_qdio_input_handler);
  
  void qeth_qdio_output_handler(struct ccw_device *ccwdev,
  		unsigned int qdio_error, int __queue, int first_element,
  		int count, unsigned long card_ptr)
  {
  	struct qeth_card *card        = (struct qeth_card *) card_ptr;
  	struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
  	struct qeth_qdio_out_buffer *buffer;
  	int i;
  
  	QETH_CARD_TEXT(card, 6, "qdouhdl");
  	if (qdio_error & QDIO_ERROR_FATAL) {
  		QETH_CARD_TEXT(card, 2, "achkcond");
  		netif_stop_queue(card->dev);
  		qeth_schedule_recovery(card);
  		return;
  	}
  	if (card->options.performance_stats) {
  		card->perf_stats.outbound_handler_cnt++;
  		card->perf_stats.outbound_handler_start_time =
  			qeth_get_micros();
  	}
  	for (i = first_element; i < (first_element + count); ++i) {
  		int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
  		buffer = queue->bufs[bidx];
  		qeth_handle_send_error(card, buffer, qdio_error);
  
  		if (queue->bufstates &&
  		    (queue->bufstates[bidx].flags &
  		     QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) {
  			WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED);
  
  			if (atomic_cmpxchg(&buffer->state,
  					   QETH_QDIO_BUF_PRIMED,
  					   QETH_QDIO_BUF_PENDING) ==
  				QETH_QDIO_BUF_PRIMED) {
  				qeth_notify_skbs(queue, buffer,
  						 TX_NOTIFY_PENDING);
  			}
  			buffer->aob = queue->bufstates[bidx].aob;
  			QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx);
  			QETH_CARD_TEXT(queue->card, 5, "aob");
  			QETH_CARD_TEXT_(queue->card, 5, "%lx",
  					virt_to_phys(buffer->aob));
  			if (qeth_init_qdio_out_buf(queue, bidx)) {
  				QETH_CARD_TEXT(card, 2, "outofbuf");
  				qeth_schedule_recovery(card);
  			}
  		} else {
  			if (card->options.cq == QETH_CQ_ENABLED) {
  				enum iucv_tx_notify n;
  
  				n = qeth_compute_cq_notification(
  					buffer->buffer->element[15].sflags, 0);
  				qeth_notify_skbs(queue, buffer, n);
  			}
  
  			qeth_clear_output_buffer(queue, buffer,
  						QETH_QDIO_BUF_EMPTY);
  		}
  		qeth_cleanup_handled_pending(queue, bidx, 0);
  	}
  	atomic_sub(count, &queue->used_buffers);
  	/* check if we need to do something on this outbound queue */
  	if (card->info.type != QETH_CARD_TYPE_IQD)
  		qeth_check_outbound_queue(queue);
  
  	netif_wake_queue(queue->card->dev);
  	if (card->options.performance_stats)
  		card->perf_stats.outbound_handler_time += qeth_get_micros() -
  			card->perf_stats.outbound_handler_start_time;
  }
  EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
  
  /**
   * Note: Function assumes that we have 4 outbound queues.
   */
  int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
  			int ipv, int cast_type)
  {
  	__be16 *tci;
  	u8 tos;
  
  	if (cast_type && card->info.is_multicast_different)
  		return card->info.is_multicast_different &
  			(card->qdio.no_out_queues - 1);
  
  	switch (card->qdio.do_prio_queueing) {
  	case QETH_PRIO_Q_ING_TOS:
  	case QETH_PRIO_Q_ING_PREC:
  		switch (ipv) {
  		case 4:
  			tos = ipv4_get_dsfield(ip_hdr(skb));
  			break;
  		case 6:
  			tos = ipv6_get_dsfield(ipv6_hdr(skb));
  			break;
  		default:
  			return card->qdio.default_out_queue;
  		}
  		if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_PREC)
  			return ~tos >> 6 & 3;
  		if (tos & IPTOS_MINCOST)
  			return 3;
  		if (tos & IPTOS_RELIABILITY)
  			return 2;
  		if (tos & IPTOS_THROUGHPUT)
  			return 1;
  		if (tos & IPTOS_LOWDELAY)
  			return 0;
  		break;
  	case QETH_PRIO_Q_ING_SKB:
  		if (skb->priority > 5)
  			return 0;
  		return ~skb->priority >> 1 & 3;
  	case QETH_PRIO_Q_ING_VLAN:
  		tci = &((struct ethhdr *)skb->data)->h_proto;
  		if (*tci == ETH_P_8021Q)
  			return ~*(tci + 1) >> (VLAN_PRIO_SHIFT + 1) & 3;
  		break;
  	default:
  		break;
  	}
  	return card->qdio.default_out_queue;
  }
  EXPORT_SYMBOL_GPL(qeth_get_priority_queue);
  
  int qeth_get_elements_for_frags(struct sk_buff *skb)
  {
  	int cnt, length, e, elements = 0;
  	struct skb_frag_struct *frag;
  	char *data;
  
  	for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
  		frag = &skb_shinfo(skb)->frags[cnt];
  		data = (char *)page_to_phys(skb_frag_page(frag)) +
  			frag->page_offset;
  		length = frag->size;
  		e = PFN_UP((unsigned long)data + length - 1) -
  			PFN_DOWN((unsigned long)data);
  		elements += e;
  	}
  	return elements;
  }
  EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags);
  
  int qeth_get_elements_no(struct qeth_card *card,
  		     struct sk_buff *skb, int elems)
  {
  	int dlen = skb->len - skb->data_len;
  	int elements_needed = PFN_UP((unsigned long)skb->data + dlen - 1) -
  		PFN_DOWN((unsigned long)skb->data);
  
  	elements_needed += qeth_get_elements_for_frags(skb);
  
  	if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
  		QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
  			"(Number=%d / Length=%d). Discarded.\n",
  			(elements_needed+elems), skb->len);
  		return 0;
  	}
  	return elements_needed;
  }
  EXPORT_SYMBOL_GPL(qeth_get_elements_no);
  
  int qeth_hdr_chk_and_bounce(struct sk_buff *skb, struct qeth_hdr **hdr, int len)
  {
  	int hroom, inpage, rest;
  
  	if (((unsigned long)skb->data & PAGE_MASK) !=
  	    (((unsigned long)skb->data + len - 1) & PAGE_MASK)) {
  		hroom = skb_headroom(skb);
  		inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE);
  		rest = len - inpage;
  		if (rest > hroom)
  			return 1;
  		memmove(skb->data - rest, skb->data, skb->len - skb->data_len);
  		skb->data -= rest;
  		skb->tail -= rest;
  		*hdr = (struct qeth_hdr *)skb->data;
  		QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest);
  	}
  	return 0;
  }
  EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce);
  
  static inline void __qeth_fill_buffer(struct sk_buff *skb,
  	struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill,
  	int offset)
  {
  	int length = skb->len - skb->data_len;
  	int length_here;
  	int element;
  	char *data;
  	int first_lap, cnt;
  	struct skb_frag_struct *frag;
  
  	element = *next_element_to_fill;
  	data = skb->data;
  	first_lap = (is_tso == 0 ? 1 : 0);
  
  	if (offset >= 0) {
  		data = skb->data + offset;
  		length -= offset;
  		first_lap = 0;
  	}
  
  	while (length > 0) {
  		/* length_here is the remaining amount of data in this page */
  		length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
  		if (length < length_here)
  			length_here = length;
  
  		buffer->element[element].addr = data;
  		buffer->element[element].length = length_here;
  		length -= length_here;
  		if (!length) {
  			if (first_lap)
  				if (skb_shinfo(skb)->nr_frags)
  					buffer->element[element].eflags =
  						SBAL_EFLAGS_FIRST_FRAG;
  				else
  					buffer->element[element].eflags = 0;
  			else
  				buffer->element[element].eflags =
  				    SBAL_EFLAGS_MIDDLE_FRAG;
  		} else {
  			if (first_lap)
  				buffer->element[element].eflags =
  				    SBAL_EFLAGS_FIRST_FRAG;
  			else
  				buffer->element[element].eflags =
  				    SBAL_EFLAGS_MIDDLE_FRAG;
  		}
  		data += length_here;
  		element++;
  		first_lap = 0;
  	}
  
  	for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
  		frag = &skb_shinfo(skb)->frags[cnt];
  		data = (char *)page_to_phys(skb_frag_page(frag)) +
  			frag->page_offset;
  		length = frag->size;
  		while (length > 0) {
  			length_here = PAGE_SIZE -
  				((unsigned long) data % PAGE_SIZE);
  			if (length < length_here)
  				length_here = length;
  
  			buffer->element[element].addr = data;
  			buffer->element[element].length = length_here;
  			buffer->element[element].eflags =
  				SBAL_EFLAGS_MIDDLE_FRAG;
  			length -= length_here;
  			data += length_here;
  			element++;
  		}
  	}
  
  	if (buffer->element[element - 1].eflags)
  		buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG;
  	*next_element_to_fill = element;
  }
  
  static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
  		struct qeth_qdio_out_buffer *buf, struct sk_buff *skb,
  		struct qeth_hdr *hdr, int offset, int hd_len)
  {
  	struct qdio_buffer *buffer;
  	int flush_cnt = 0, hdr_len, large_send = 0;
  
  	buffer = buf->buffer;
  	atomic_inc(&skb->users);
  	skb_queue_tail(&buf->skb_list, skb);
  
  	/*check first on TSO ....*/
  	if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) {
  		int element = buf->next_element_to_fill;
  
  		hdr_len = sizeof(struct qeth_hdr_tso) +
  			((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len;
  		/*fill first buffer entry only with header information */
  		buffer->element[element].addr = skb->data;
  		buffer->element[element].length = hdr_len;
  		buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG;
  		buf->next_element_to_fill++;
  		skb->data += hdr_len;
  		skb->len  -= hdr_len;
  		large_send = 1;
  	}
  
  	if (offset >= 0) {
  		int element = buf->next_element_to_fill;
  		buffer->element[element].addr = hdr;
  		buffer->element[element].length = sizeof(struct qeth_hdr) +
  							hd_len;
  		buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG;
  		buf->is_header[element] = 1;
  		buf->next_element_to_fill++;
  	}
  
  	__qeth_fill_buffer(skb, buffer, large_send,
  		(int *)&buf->next_element_to_fill, offset);
  
  	if (!queue->do_pack) {
  		QETH_CARD_TEXT(queue->card, 6, "fillbfnp");
  		/* set state to PRIMED -> will be flushed */
  		atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
  		flush_cnt = 1;
  	} else {
  		QETH_CARD_TEXT(queue->card, 6, "fillbfpa");
  		if (queue->card->options.performance_stats)
  			queue->card->perf_stats.skbs_sent_pack++;
  		if (buf->next_element_to_fill >=
  				QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
  			/*
  			 * packed buffer if full -> set state PRIMED
  			 * -> will be flushed
  			 */
  			atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
  			flush_cnt = 1;
  		}
  	}
  	return flush_cnt;
  }
  
  int qeth_do_send_packet_fast(struct qeth_card *card,
  		struct qeth_qdio_out_q *queue, struct sk_buff *skb,
  		struct qeth_hdr *hdr, int elements_needed,
  		int offset, int hd_len)
  {
  	struct qeth_qdio_out_buffer *buffer;
  	int index;
  
  	/* spin until we get the queue ... */
  	while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
  			      QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
  	/* ... now we've got the queue */
  	index = queue->next_buf_to_fill;
  	buffer = queue->bufs[queue->next_buf_to_fill];
  	/*
  	 * check if buffer is empty to make sure that we do not 'overtake'
  	 * ourselves and try to fill a buffer that is already primed
  	 */
  	if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
  		goto out;
  	queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
  					  QDIO_MAX_BUFFERS_PER_Q;
  	atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
  	qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
  	qeth_flush_buffers(queue, index, 1);
  	return 0;
  out:
  	atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
  	return -EBUSY;
  }
  EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
  
  int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
  		struct sk_buff *skb, struct qeth_hdr *hdr,
  		int elements_needed)
  {
  	struct qeth_qdio_out_buffer *buffer;
  	int start_index;
  	int flush_count = 0;
  	int do_pack = 0;
  	int tmp;
  	int rc = 0;
  
  	/* spin until we get the queue ... */
  	while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
  			      QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
  	start_index = queue->next_buf_to_fill;
  	buffer = queue->bufs[queue->next_buf_to_fill];
  	/*
  	 * check if buffer is empty to make sure that we do not 'overtake'
  	 * ourselves and try to fill a buffer that is already primed
  	 */
  	if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
  		atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
  		return -EBUSY;
  	}
  	/* check if we need to switch packing state of this queue */
  	qeth_switch_to_packing_if_needed(queue);
  	if (queue->do_pack) {
  		do_pack = 1;
  		/* does packet fit in current buffer? */
  		if ((QETH_MAX_BUFFER_ELEMENTS(card) -
  		    buffer->next_element_to_fill) < elements_needed) {
  			/* ... no -> set state PRIMED */
  			atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
  			flush_count++;
  			queue->next_buf_to_fill =
  				(queue->next_buf_to_fill + 1) %
  				QDIO_MAX_BUFFERS_PER_Q;
  			buffer = queue->bufs[queue->next_buf_to_fill];
  			/* we did a step forward, so check buffer state
  			 * again */
  			if (atomic_read(&buffer->state) !=
  			    QETH_QDIO_BUF_EMPTY) {
  				qeth_flush_buffers(queue, start_index,
  							   flush_count);
  				atomic_set(&queue->state,
  						QETH_OUT_Q_UNLOCKED);
  				return -EBUSY;
  			}
  		}
  	}
  	tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0);
  	queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
  				  QDIO_MAX_BUFFERS_PER_Q;
  	flush_count += tmp;
  	if (flush_count)
  		qeth_flush_buffers(queue, start_index, flush_count);
  	else if (!atomic_read(&queue->set_pci_flags_count))
  		atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
  	/*
  	 * queue->state will go from LOCKED -> UNLOCKED or from
  	 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
  	 * (switch packing state or flush buffer to get another pci flag out).
  	 * In that case we will enter this loop
  	 */
  	while (atomic_dec_return(&queue->state)) {
  		flush_count = 0;
  		start_index = queue->next_buf_to_fill;
  		/* check if we can go back to non-packing state */
  		flush_count += qeth_switch_to_nonpacking_if_needed(queue);
  		/*
  		 * check if we need to flush a packing buffer to get a pci
  		 * flag out on the queue
  		 */
  		if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
  			flush_count += qeth_flush_buffers_on_no_pci(queue);
  		if (flush_count)
  			qeth_flush_buffers(queue, start_index, flush_count);
  	}
  	/* at this point the queue is UNLOCKED again */
  	if (queue->card->options.performance_stats && do_pack)
  		queue->card->perf_stats.bufs_sent_pack += flush_count;
  
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_do_send_packet);
  
  static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
  		struct qeth_reply *reply, unsigned long data)
  {
  	struct qeth_ipa_cmd *cmd;
  	struct qeth_ipacmd_setadpparms *setparms;
  
  	QETH_CARD_TEXT(card, 4, "prmadpcb");
  
  	cmd = (struct qeth_ipa_cmd *) data;
  	setparms = &(cmd->data.setadapterparms);
  
  	qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
  	if (cmd->hdr.return_code) {
  		QETH_CARD_TEXT_(card, 4, "prmrc%x", cmd->hdr.return_code);
  		setparms->data.mode = SET_PROMISC_MODE_OFF;
  	}
  	card->info.promisc_mode = setparms->data.mode;
  	return 0;
  }
  
  void qeth_setadp_promisc_mode(struct qeth_card *card)
  {
  	enum qeth_ipa_promisc_modes mode;
  	struct net_device *dev = card->dev;
  	struct qeth_cmd_buffer *iob;
  	struct qeth_ipa_cmd *cmd;
  
  	QETH_CARD_TEXT(card, 4, "setprom");
  
  	if (((dev->flags & IFF_PROMISC) &&
  	     (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
  	    (!(dev->flags & IFF_PROMISC) &&
  	     (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
  		return;
  	mode = SET_PROMISC_MODE_OFF;
  	if (dev->flags & IFF_PROMISC)
  		mode = SET_PROMISC_MODE_ON;
  	QETH_CARD_TEXT_(card, 4, "mode:%x", mode);
  
  	iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
  			sizeof(struct qeth_ipacmd_setadpparms_hdr) + 8);
  	if (!iob)
  		return;
  	cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
  	cmd->data.setadapterparms.data.mode = mode;
  	qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
  }
  EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode);
  
  int qeth_change_mtu(struct net_device *dev, int new_mtu)
  {
  	struct qeth_card *card;
  	char dbf_text[15];
  
  	card = dev->ml_priv;
  
  	QETH_CARD_TEXT(card, 4, "chgmtu");
  	sprintf(dbf_text, "%8x", new_mtu);
  	QETH_CARD_TEXT(card, 4, dbf_text);
  
  	if (new_mtu < 64)
  		return -EINVAL;
  	if (new_mtu > 65535)
  		return -EINVAL;
  	if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) &&
  	    (!qeth_mtu_is_valid(card, new_mtu)))
  		return -EINVAL;
  	dev->mtu = new_mtu;
  	return 0;
  }
  EXPORT_SYMBOL_GPL(qeth_change_mtu);
  
  struct net_device_stats *qeth_get_stats(struct net_device *dev)
  {
  	struct qeth_card *card;
  
  	card = dev->ml_priv;
  
  	QETH_CARD_TEXT(card, 5, "getstat");
  
  	return &card->stats;
  }
  EXPORT_SYMBOL_GPL(qeth_get_stats);
  
  static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
  		struct qeth_reply *reply, unsigned long data)
  {
  	struct qeth_ipa_cmd *cmd;
  
  	QETH_CARD_TEXT(card, 4, "chgmaccb");
  
  	cmd = (struct qeth_ipa_cmd *) data;
  	if (!card->options.layer2 ||
  	    !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
  		memcpy(card->dev->dev_addr,
  		       &cmd->data.setadapterparms.data.change_addr.addr,
  		       OSA_ADDR_LEN);
  		card->info.mac_bits |= QETH_LAYER2_MAC_READ;
  	}
  	qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
  	return 0;
  }
  
  int qeth_setadpparms_change_macaddr(struct qeth_card *card)
  {
  	int rc;
  	struct qeth_cmd_buffer *iob;
  	struct qeth_ipa_cmd *cmd;
  
  	QETH_CARD_TEXT(card, 4, "chgmac");
  
  	iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS,
  				   sizeof(struct qeth_ipacmd_setadpparms_hdr) +
  				   sizeof(struct qeth_change_addr));
  	if (!iob)
  		return -ENOMEM;
  	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
  	cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
  	cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
  	memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
  	       card->dev->dev_addr, OSA_ADDR_LEN);
  	rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
  			       NULL);
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
  
  static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
  		struct qeth_reply *reply, unsigned long data)
  {
  	struct qeth_ipa_cmd *cmd;
  	struct qeth_set_access_ctrl *access_ctrl_req;
  	int fallback = *(int *)reply->param;
  
  	QETH_CARD_TEXT(card, 4, "setaccb");
  
  	cmd = (struct qeth_ipa_cmd *) data;
  	access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
  	QETH_DBF_TEXT_(SETUP, 2, "setaccb");
  	QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
  	QETH_DBF_TEXT_(SETUP, 2, "rc=%d",
  		cmd->data.setadapterparms.hdr.return_code);
  	if (cmd->data.setadapterparms.hdr.return_code !=
  						SET_ACCESS_CTRL_RC_SUCCESS)
  		QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
  				card->gdev->dev.kobj.name,
  				access_ctrl_req->subcmd_code,
  				cmd->data.setadapterparms.hdr.return_code);
  	switch (cmd->data.setadapterparms.hdr.return_code) {
  	case SET_ACCESS_CTRL_RC_SUCCESS:
  		if (card->options.isolation == ISOLATION_MODE_NONE) {
  			dev_info(&card->gdev->dev,
  			    "QDIO data connection isolation is deactivated\n");
  		} else {
  			dev_info(&card->gdev->dev,
  			    "QDIO data connection isolation is activated\n");
  		}
  		break;
  	case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED:
  		QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already "
  				"deactivated\n", dev_name(&card->gdev->dev));
  		if (fallback)
  			card->options.isolation = card->options.prev_isolation;
  		break;
  	case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED:
  		QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already"
  				" activated\n", dev_name(&card->gdev->dev));
  		if (fallback)
  			card->options.isolation = card->options.prev_isolation;
  		break;
  	case SET_ACCESS_CTRL_RC_NOT_SUPPORTED:
  		dev_err(&card->gdev->dev, "Adapter does not "
  			"support QDIO data connection isolation\n");
  		break;
  	case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER:
  		dev_err(&card->gdev->dev,
  			"Adapter is dedicated. "
  			"QDIO data connection isolation not supported\n");
  		if (fallback)
  			card->options.isolation = card->options.prev_isolation;
  		break;
  	case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF:
  		dev_err(&card->gdev->dev,
  			"TSO does not permit QDIO data connection isolation\n");
  		if (fallback)
  			card->options.isolation = card->options.prev_isolation;
  		break;
  	case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED:
  		dev_err(&card->gdev->dev, "The adjacent switch port does not "
  			"support reflective relay mode\n");
  		if (fallback)
  			card->options.isolation = card->options.prev_isolation;
  		break;
  	case SET_ACCESS_CTRL_RC_REFLREL_FAILED:
  		dev_err(&card->gdev->dev, "The reflective relay mode cannot be "
  					"enabled at the adjacent switch port");
  		if (fallback)
  			card->options.isolation = card->options.prev_isolation;
  		break;
  	case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED:
  		dev_warn(&card->gdev->dev, "Turning off reflective relay mode "
  					"at the adjacent switch failed\n");
  		break;
  	default:
  		/* this should never happen */
  		if (fallback)
  			card->options.isolation = card->options.prev_isolation;
  		break;
  	}
  	qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
  	return 0;
  }
  
  static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
  		enum qeth_ipa_isolation_modes isolation, int fallback)
  {
  	int rc;
  	struct qeth_cmd_buffer *iob;
  	struct qeth_ipa_cmd *cmd;
  	struct qeth_set_access_ctrl *access_ctrl_req;
  
  	QETH_CARD_TEXT(card, 4, "setacctl");
  
  	QETH_DBF_TEXT_(SETUP, 2, "setacctl");
  	QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
  
  	iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL,
  				   sizeof(struct qeth_ipacmd_setadpparms_hdr) +
  				   sizeof(struct qeth_set_access_ctrl));
  	if (!iob)
  		return -ENOMEM;
  	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
  	access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
  	access_ctrl_req->subcmd_code = isolation;
  
  	rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb,
  			       &fallback);
  	QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc);
  	return rc;
  }
  
  int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback)
  {
  	int rc = 0;
  
  	QETH_CARD_TEXT(card, 4, "setactlo");
  
  	if ((card->info.type == QETH_CARD_TYPE_OSD ||
  	     card->info.type == QETH_CARD_TYPE_OSX) &&
  	     qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) {
  		rc = qeth_setadpparms_set_access_ctrl(card,
  			card->options.isolation, fallback);
  		if (rc) {
  			QETH_DBF_MESSAGE(3,
  				"IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
  				card->gdev->dev.kobj.name,
  				rc);
  			rc = -EOPNOTSUPP;
  		}
  	} else if (card->options.isolation != ISOLATION_MODE_NONE) {
  		card->options.isolation = ISOLATION_MODE_NONE;
  
  		dev_err(&card->gdev->dev, "Adapter does not "
  			"support QDIO data connection isolation\n");
  		rc = -EOPNOTSUPP;
  	}
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online);
  
  void qeth_tx_timeout(struct net_device *dev)
  {
  	struct qeth_card *card;
  
  	card = dev->ml_priv;
  	QETH_CARD_TEXT(card, 4, "txtimeo");
  	card->stats.tx_errors++;
  	qeth_schedule_recovery(card);
  }
  EXPORT_SYMBOL_GPL(qeth_tx_timeout);
  
  int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
  {
  	struct qeth_card *card = dev->ml_priv;
  	int rc = 0;
  
  	switch (regnum) {
  	case MII_BMCR: /* Basic mode control register */
  		rc = BMCR_FULLDPLX;
  		if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) &&
  		    (card->info.link_type != QETH_LINK_TYPE_OSN) &&
  		    (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
  			rc |= BMCR_SPEED100;
  		break;
  	case MII_BMSR: /* Basic mode status register */
  		rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
  		     BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
  		     BMSR_100BASE4;
  		break;
  	case MII_PHYSID1: /* PHYS ID 1 */
  		rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
  		     dev->dev_addr[2];
  		rc = (rc >> 5) & 0xFFFF;
  		break;
  	case MII_PHYSID2: /* PHYS ID 2 */
  		rc = (dev->dev_addr[2] << 10) & 0xFFFF;
  		break;
  	case MII_ADVERTISE: /* Advertisement control reg */
  		rc = ADVERTISE_ALL;
  		break;
  	case MII_LPA: /* Link partner ability reg */
  		rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
  		     LPA_100BASE4 | LPA_LPACK;
  		break;
  	case MII_EXPANSION: /* Expansion register */
  		break;
  	case MII_DCOUNTER: /* disconnect counter */
  		break;
  	case MII_FCSCOUNTER: /* false carrier counter */
  		break;
  	case MII_NWAYTEST: /* N-way auto-neg test register */
  		break;
  	case MII_RERRCOUNTER: /* rx error counter */
  		rc = card->stats.rx_errors;
  		break;
  	case MII_SREVISION: /* silicon revision */
  		break;
  	case MII_RESV1: /* reserved 1 */
  		break;
  	case MII_LBRERROR: /* loopback, rx, bypass error */
  		break;
  	case MII_PHYADDR: /* physical address */
  		break;
  	case MII_RESV2: /* reserved 2 */
  		break;
  	case MII_TPISTATUS: /* TPI status for 10mbps */
  		break;
  	case MII_NCONFIG: /* network interface config */
  		break;
  	default:
  		break;
  	}
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_mdio_read);
  
  static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
  		struct qeth_cmd_buffer *iob, int len,
  		int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
  			unsigned long),
  		void *reply_param)
  {
  	u16 s1, s2;
  
  	QETH_CARD_TEXT(card, 4, "sendsnmp");
  
  	memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
  	memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
  	       &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
  	/* adjust PDU length fields in IPA_PDU_HEADER */
  	s1 = (u32) IPA_PDU_HEADER_SIZE + len;
  	s2 = (u32) len;
  	memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
  	memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
  	memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
  	memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
  	return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
  				      reply_cb, reply_param);
  }
  
  static int qeth_snmp_command_cb(struct qeth_card *card,
  		struct qeth_reply *reply, unsigned long sdata)
  {
  	struct qeth_ipa_cmd *cmd;
  	struct qeth_arp_query_info *qinfo;
  	struct qeth_snmp_cmd *snmp;
  	unsigned char *data;
  	__u16 data_len;
  
  	QETH_CARD_TEXT(card, 3, "snpcmdcb");
  
  	cmd = (struct qeth_ipa_cmd *) sdata;
  	data = (unsigned char *)((char *)cmd - reply->offset);
  	qinfo = (struct qeth_arp_query_info *) reply->param;
  	snmp = &cmd->data.setadapterparms.data.snmp;
  
  	if (cmd->hdr.return_code) {
  		QETH_CARD_TEXT_(card, 4, "scer1%x", cmd->hdr.return_code);
  		return 0;
  	}
  	if (cmd->data.setadapterparms.hdr.return_code) {
  		cmd->hdr.return_code =
  			cmd->data.setadapterparms.hdr.return_code;
  		QETH_CARD_TEXT_(card, 4, "scer2%x", cmd->hdr.return_code);
  		return 0;
  	}
  	data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
  	if (cmd->data.setadapterparms.hdr.seq_no == 1)
  		data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
  	else
  		data_len -= (__u16)((char *)&snmp->request - (char *)cmd);
  
  	/* check if there is enough room in userspace */
  	if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
  		QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM);
  		cmd->hdr.return_code = IPA_RC_ENOMEM;
  		return 0;
  	}
  	QETH_CARD_TEXT_(card, 4, "snore%i",
  		       cmd->data.setadapterparms.hdr.used_total);
  	QETH_CARD_TEXT_(card, 4, "sseqn%i",
  		cmd->data.setadapterparms.hdr.seq_no);
  	/*copy entries to user buffer*/
  	if (cmd->data.setadapterparms.hdr.seq_no == 1) {
  		memcpy(qinfo->udata + qinfo->udata_offset,
  		       (char *)snmp,
  		       data_len + offsetof(struct qeth_snmp_cmd, data));
  		qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
  	} else {
  		memcpy(qinfo->udata + qinfo->udata_offset,
  		       (char *)&snmp->request, data_len);
  	}
  	qinfo->udata_offset += data_len;
  	/* check if all replies received ... */
  		QETH_CARD_TEXT_(card, 4, "srtot%i",
  			       cmd->data.setadapterparms.hdr.used_total);
  		QETH_CARD_TEXT_(card, 4, "srseq%i",
  			       cmd->data.setadapterparms.hdr.seq_no);
  	if (cmd->data.setadapterparms.hdr.seq_no <
  	    cmd->data.setadapterparms.hdr.used_total)
  		return 1;
  	return 0;
  }
  
  int qeth_snmp_command(struct qeth_card *card, char __user *udata)
  {
  	struct qeth_cmd_buffer *iob;
  	struct qeth_ipa_cmd *cmd;
  	struct qeth_snmp_ureq *ureq;
  	unsigned int req_len;
  	struct qeth_arp_query_info qinfo = {0, };
  	int rc = 0;
  
  	QETH_CARD_TEXT(card, 3, "snmpcmd");
  
  	if (card->info.guestlan)
  		return -EOPNOTSUPP;
  
  	if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
  	    (!card->options.layer2)) {
  		return -EOPNOTSUPP;
  	}
  	/* skip 4 bytes (data_len struct member) to get req_len */
  	if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
  		return -EFAULT;
  	if (req_len > (QETH_BUFSIZE - IPA_PDU_HEADER_SIZE -
  		       sizeof(struct qeth_ipacmd_hdr) -
  		       sizeof(struct qeth_ipacmd_setadpparms_hdr)))
  		return -EINVAL;
  	ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr));
  	if (IS_ERR(ureq)) {
  		QETH_CARD_TEXT(card, 2, "snmpnome");
  		return PTR_ERR(ureq);
  	}
  	qinfo.udata_len = ureq->hdr.data_len;
  	qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
  	if (!qinfo.udata) {
  		kfree(ureq);
  		return -ENOMEM;
  	}
  	qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
  
  	iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
  				   QETH_SNMP_SETADP_CMDLENGTH + req_len);
  	if (!iob) {
  		rc = -ENOMEM;
  		goto out;
  	}
  	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
  	memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
  	rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
  				    qeth_snmp_command_cb, (void *)&qinfo);
  	if (rc)
  		QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
  			   QETH_CARD_IFNAME(card), rc);
  	else {
  		if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
  			rc = -EFAULT;
  	}
  out:
  	kfree(ureq);
  	kfree(qinfo.udata);
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_snmp_command);
  
  static int qeth_setadpparms_query_oat_cb(struct qeth_card *card,
  		struct qeth_reply *reply, unsigned long data)
  {
  	struct qeth_ipa_cmd *cmd;
  	struct qeth_qoat_priv *priv;
  	char *resdata;
  	int resdatalen;
  
  	QETH_CARD_TEXT(card, 3, "qoatcb");
  
  	cmd = (struct qeth_ipa_cmd *)data;
  	priv = (struct qeth_qoat_priv *)reply->param;
  	resdatalen = cmd->data.setadapterparms.hdr.cmdlength;
  	resdata = (char *)data + 28;
  
  	if (resdatalen > (priv->buffer_len - priv->response_len)) {
  		cmd->hdr.return_code = IPA_RC_FFFF;
  		return 0;
  	}
  
  	memcpy((priv->buffer + priv->response_len), resdata,
  		resdatalen);
  	priv->response_len += resdatalen;
  
  	if (cmd->data.setadapterparms.hdr.seq_no <
  	    cmd->data.setadapterparms.hdr.used_total)
  		return 1;
  	return 0;
  }
  
  int qeth_query_oat_command(struct qeth_card *card, char __user *udata)
  {
  	int rc = 0;
  	struct qeth_cmd_buffer *iob;
  	struct qeth_ipa_cmd *cmd;
  	struct qeth_query_oat *oat_req;
  	struct qeth_query_oat_data oat_data;
  	struct qeth_qoat_priv priv;
  	void __user *tmp;
  
  	QETH_CARD_TEXT(card, 3, "qoatcmd");
  
  	if (!qeth_adp_supported(card, IPA_SETADP_QUERY_OAT)) {
  		rc = -EOPNOTSUPP;
  		goto out;
  	}
  
  	if (copy_from_user(&oat_data, udata,
  	    sizeof(struct qeth_query_oat_data))) {
  			rc = -EFAULT;
  			goto out;
  	}
  
  	priv.buffer_len = oat_data.buffer_len;
  	priv.response_len = 0;
  	priv.buffer =  kzalloc(oat_data.buffer_len, GFP_KERNEL);
  	if (!priv.buffer) {
  		rc = -ENOMEM;
  		goto out;
  	}
  
  	iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_OAT,
  				   sizeof(struct qeth_ipacmd_setadpparms_hdr) +
  				   sizeof(struct qeth_query_oat));
  	if (!iob) {
  		rc = -ENOMEM;
  		goto out_free;
  	}
  	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
  	oat_req = &cmd->data.setadapterparms.data.query_oat;
  	oat_req->subcmd_code = oat_data.command;
  
  	rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_query_oat_cb,
  			       &priv);
  	if (!rc) {
  		if (is_compat_task())
  			tmp = compat_ptr(oat_data.ptr);
  		else
  			tmp = (void __user *)(unsigned long)oat_data.ptr;
  
  		if (copy_to_user(tmp, priv.buffer,
  		    priv.response_len)) {
  			rc = -EFAULT;
  			goto out_free;
  		}
  
  		oat_data.response_len = priv.response_len;
  
  		if (copy_to_user(udata, &oat_data,
  		    sizeof(struct qeth_query_oat_data)))
  			rc = -EFAULT;
  	} else
  		if (rc == IPA_RC_FFFF)
  			rc = -EFAULT;
  
  out_free:
  	kfree(priv.buffer);
  out:
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_query_oat_command);
  
  static int qeth_query_card_info_cb(struct qeth_card *card,
  				   struct qeth_reply *reply, unsigned long data)
  {
  	struct qeth_ipa_cmd *cmd;
  	struct qeth_query_card_info *card_info;
  	struct carrier_info *carrier_info;
  
  	QETH_CARD_TEXT(card, 2, "qcrdincb");
  	carrier_info = (struct carrier_info *)reply->param;
  	cmd = (struct qeth_ipa_cmd *)data;
  	card_info = &cmd->data.setadapterparms.data.card_info;
  	if (cmd->data.setadapterparms.hdr.return_code == 0) {
  		carrier_info->card_type = card_info->card_type;
  		carrier_info->port_mode = card_info->port_mode;
  		carrier_info->port_speed = card_info->port_speed;
  	}
  
  	qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
  	return 0;
  }
  
  static int qeth_query_card_info(struct qeth_card *card,
  				struct carrier_info *carrier_info)
  {
  	struct qeth_cmd_buffer *iob;
  
  	QETH_CARD_TEXT(card, 2, "qcrdinfo");
  	if (!qeth_adp_supported(card, IPA_SETADP_QUERY_CARD_INFO))
  		return -EOPNOTSUPP;
  	iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_CARD_INFO,
  		sizeof(struct qeth_ipacmd_setadpparms_hdr));
  	if (!iob)
  		return -ENOMEM;
  	return qeth_send_ipa_cmd(card, iob, qeth_query_card_info_cb,
  					(void *)carrier_info);
  }
  
  static inline int qeth_get_qdio_q_format(struct qeth_card *card)
  {
  	switch (card->info.type) {
  	case QETH_CARD_TYPE_IQD:
  		return 2;
  	default:
  		return 0;
  	}
  }
  
  static void qeth_determine_capabilities(struct qeth_card *card)
  {
  	int rc;
  	int length;
  	char *prcd;
  	struct ccw_device *ddev;
  	int ddev_offline = 0;
  
  	QETH_DBF_TEXT(SETUP, 2, "detcapab");
  	ddev = CARD_DDEV(card);
  	if (!ddev->online) {
  		ddev_offline = 1;
  		rc = ccw_device_set_online(ddev);
  		if (rc) {
  			QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
  			goto out;
  		}
  	}
  
  	rc = qeth_read_conf_data(card, (void **) &prcd, &length);
  	if (rc) {
  		QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
  			dev_name(&card->gdev->dev), rc);
  		QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
  		goto out_offline;
  	}
  	qeth_configure_unitaddr(card, prcd);
  	if (ddev_offline)
  		qeth_configure_blkt_default(card, prcd);
  	kfree(prcd);
  
  	rc = qdio_get_ssqd_desc(ddev, &card->ssqd);
  	if (rc)
  		QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
  
  	QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt);
  	QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac1);
  	QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac3);
  	QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt);
  	if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) ||
  	    ((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) ||
  	    ((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) {
  		dev_info(&card->gdev->dev,
  			"Completion Queueing supported\n");
  	} else {
  		card->options.cq = QETH_CQ_NOTAVAILABLE;
  	}
  
  
  out_offline:
  	if (ddev_offline == 1)
  		ccw_device_set_offline(ddev);
  out:
  	return;
  }
  
  static inline void qeth_qdio_establish_cq(struct qeth_card *card,
  	struct qdio_buffer **in_sbal_ptrs,
  	void (**queue_start_poll) (struct ccw_device *, int, unsigned long)) {
  	int i;
  
  	if (card->options.cq == QETH_CQ_ENABLED) {
  		int offset = QDIO_MAX_BUFFERS_PER_Q *
  			     (card->qdio.no_in_queues - 1);
  		i = QDIO_MAX_BUFFERS_PER_Q * (card->qdio.no_in_queues - 1);
  		for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
  			in_sbal_ptrs[offset + i] = (struct qdio_buffer *)
  				virt_to_phys(card->qdio.c_q->bufs[i].buffer);
  		}
  
  		queue_start_poll[card->qdio.no_in_queues - 1] = NULL;
  	}
  }
  
  static int qeth_qdio_establish(struct qeth_card *card)
  {
  	struct qdio_initialize init_data;
  	char *qib_param_field;
  	struct qdio_buffer **in_sbal_ptrs;
  	void (**queue_start_poll) (struct ccw_device *, int, unsigned long);
  	struct qdio_buffer **out_sbal_ptrs;
  	int i, j, k;
  	int rc = 0;
  
  	QETH_DBF_TEXT(SETUP, 2, "qdioest");
  
  	qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
  			      GFP_KERNEL);
  	if (!qib_param_field) {
  		rc =  -ENOMEM;
  		goto out_free_nothing;
  	}
  
  	qeth_create_qib_param_field(card, qib_param_field);
  	qeth_create_qib_param_field_blkt(card, qib_param_field);
  
  	in_sbal_ptrs = kzalloc(card->qdio.no_in_queues *
  			       QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
  			       GFP_KERNEL);
  	if (!in_sbal_ptrs) {
  		rc = -ENOMEM;
  		goto out_free_qib_param;
  	}
  	for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
  		in_sbal_ptrs[i] = (struct qdio_buffer *)
  			virt_to_phys(card->qdio.in_q->bufs[i].buffer);
  	}
  
  	queue_start_poll = kzalloc(sizeof(void *) * card->qdio.no_in_queues,
  				   GFP_KERNEL);
  	if (!queue_start_poll) {
  		rc = -ENOMEM;
  		goto out_free_in_sbals;
  	}
  	for (i = 0; i < card->qdio.no_in_queues; ++i)
  		queue_start_poll[i] = card->discipline->start_poll;
  
  	qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll);
  
  	out_sbal_ptrs =
  		kzalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
  			sizeof(void *), GFP_KERNEL);
  	if (!out_sbal_ptrs) {
  		rc = -ENOMEM;
  		goto out_free_queue_start_poll;
  	}
  	for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
  		for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
  			out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
  				card->qdio.out_qs[i]->bufs[j]->buffer);
  		}
  
  	memset(&init_data, 0, sizeof(struct qdio_initialize));
  	init_data.cdev                   = CARD_DDEV(card);
  	init_data.q_format               = qeth_get_qdio_q_format(card);
  	init_data.qib_param_field_format = 0;
  	init_data.qib_param_field        = qib_param_field;
  	init_data.no_input_qs            = card->qdio.no_in_queues;
  	init_data.no_output_qs           = card->qdio.no_out_queues;
  	init_data.input_handler 	 = card->discipline->input_handler;
  	init_data.output_handler	 = card->discipline->output_handler;
  	init_data.queue_start_poll_array = queue_start_poll;
  	init_data.int_parm               = (unsigned long) card;
  	init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
  	init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
  	init_data.output_sbal_state_array = card->qdio.out_bufstates;
  	init_data.scan_threshold =
  		(card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32;
  
  	if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
  		QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
  		rc = qdio_allocate(&init_data);
  		if (rc) {
  			atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
  			goto out;
  		}
  		rc = qdio_establish(&init_data);
  		if (rc) {
  			atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
  			qdio_free(CARD_DDEV(card));
  		}
  	}
  
  	switch (card->options.cq) {
  	case QETH_CQ_ENABLED:
  		dev_info(&card->gdev->dev, "Completion Queue support enabled");
  		break;
  	case QETH_CQ_DISABLED:
  		dev_info(&card->gdev->dev, "Completion Queue support disabled");
  		break;
  	default:
  		break;
  	}
  out:
  	kfree(out_sbal_ptrs);
  out_free_queue_start_poll:
  	kfree(queue_start_poll);
  out_free_in_sbals:
  	kfree(in_sbal_ptrs);
  out_free_qib_param:
  	kfree(qib_param_field);
  out_free_nothing:
  	return rc;
  }
  
  static void qeth_core_free_card(struct qeth_card *card)
  {
  
  	QETH_DBF_TEXT(SETUP, 2, "freecrd");
  	QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
  	qeth_clean_channel(&card->read);
  	qeth_clean_channel(&card->write);
  	if (card->dev)
  		free_netdev(card->dev);
  	kfree(card->ip_tbd_list);
  	qeth_free_qdio_buffers(card);
  	unregister_service_level(&card->qeth_service_level);
  	kfree(card);
  }
  
  void qeth_trace_features(struct qeth_card *card)
  {
  	QETH_CARD_TEXT(card, 2, "features");
  	QETH_CARD_HEX(card, 2, &card->options.ipa4, sizeof(card->options.ipa4));
  	QETH_CARD_HEX(card, 2, &card->options.ipa6, sizeof(card->options.ipa6));
  	QETH_CARD_HEX(card, 2, &card->options.adp, sizeof(card->options.adp));
  	QETH_CARD_HEX(card, 2, &card->info.diagass_support,
  		      sizeof(card->info.diagass_support));
  }
  EXPORT_SYMBOL_GPL(qeth_trace_features);
  
  static struct ccw_device_id qeth_ids[] = {
  	{CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
  					.driver_info = QETH_CARD_TYPE_OSD},
  	{CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05),
  					.driver_info = QETH_CARD_TYPE_IQD},
  	{CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06),
  					.driver_info = QETH_CARD_TYPE_OSN},
  	{CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03),
  					.driver_info = QETH_CARD_TYPE_OSM},
  	{CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02),
  					.driver_info = QETH_CARD_TYPE_OSX},
  	{},
  };
  MODULE_DEVICE_TABLE(ccw, qeth_ids);
  
  static struct ccw_driver qeth_ccw_driver = {
  	.driver = {
  		.owner = THIS_MODULE,
  		.name = "qeth",
  	},
  	.ids = qeth_ids,
  	.probe = ccwgroup_probe_ccwdev,
  	.remove = ccwgroup_remove_ccwdev,
  };
  
  int qeth_core_hardsetup_card(struct qeth_card *card)
  {
  	int retries = 3;
  	int rc;
  
  	QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
  	atomic_set(&card->force_alloc_skb, 0);
  	qeth_update_from_chp_desc(card);
  retry:
  	if (retries < 3)
  		QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
  			dev_name(&card->gdev->dev));
  	rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
  	ccw_device_set_offline(CARD_DDEV(card));
  	ccw_device_set_offline(CARD_WDEV(card));
  	ccw_device_set_offline(CARD_RDEV(card));
  	qdio_free(CARD_DDEV(card));
  	rc = ccw_device_set_online(CARD_RDEV(card));
  	if (rc)
  		goto retriable;
  	rc = ccw_device_set_online(CARD_WDEV(card));
  	if (rc)
  		goto retriable;
  	rc = ccw_device_set_online(CARD_DDEV(card));
  	if (rc)
  		goto retriable;
  retriable:
  	if (rc == -ERESTARTSYS) {
  		QETH_DBF_TEXT(SETUP, 2, "break1");
  		return rc;
  	} else if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
  		if (--retries < 0)
  			goto out;
  		else
  			goto retry;
  	}
  	qeth_determine_capabilities(card);
  	qeth_init_tokens(card);
  	qeth_init_func_level(card);
  	rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
  	if (rc == -ERESTARTSYS) {
  		QETH_DBF_TEXT(SETUP, 2, "break2");
  		return rc;
  	} else if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
  		if (--retries < 0)
  			goto out;
  		else
  			goto retry;
  	}
  	rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
  	if (rc == -ERESTARTSYS) {
  		QETH_DBF_TEXT(SETUP, 2, "break3");
  		return rc;
  	} else if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
  		if (--retries < 0)
  			goto out;
  		else
  			goto retry;
  	}
  	card->read_or_write_problem = 0;
  	rc = qeth_mpc_initialize(card);
  	if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
  		goto out;
  	}
  
  	card->options.ipa4.supported_funcs = 0;
  	card->options.ipa6.supported_funcs = 0;
  	card->options.adp.supported_funcs = 0;
  	card->options.sbp.supported_funcs = 0;
  	card->info.diagass_support = 0;
  	rc = qeth_query_ipassists(card, QETH_PROT_IPV4);
  	if (rc == -ENOMEM)
  		goto out;
  	if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
  		rc = qeth_query_setadapterparms(card);
  		if (rc < 0) {
  			QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
  			goto out;
  		}
  	}
  	if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
  		rc = qeth_query_setdiagass(card);
  		if (rc < 0) {
  			QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
  			goto out;
  		}
  	}
  	return 0;
  out:
  	dev_warn(&card->gdev->dev, "The qeth device driver failed to recover "
  		"an error on the device\n");
  	QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
  		dev_name(&card->gdev->dev), rc);
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
  
  static inline int qeth_create_skb_frag(struct qeth_qdio_buffer *qethbuffer,
  		struct qdio_buffer_element *element,
  		struct sk_buff **pskb, int offset, int *pfrag, int data_len)
  {
  	struct page *page = virt_to_page(element->addr);
  	if (*pskb == NULL) {
  		if (qethbuffer->rx_skb) {
  			/* only if qeth_card.options.cq == QETH_CQ_ENABLED */
  			*pskb = qethbuffer->rx_skb;
  			qethbuffer->rx_skb = NULL;
  		} else {
  			*pskb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN);
  			if (!(*pskb))
  				return -ENOMEM;
  		}
  
  		skb_reserve(*pskb, ETH_HLEN);
  		if (data_len <= QETH_RX_PULL_LEN) {
  			memcpy(skb_put(*pskb, data_len), element->addr + offset,
  				data_len);
  		} else {
  			get_page(page);
  			memcpy(skb_put(*pskb, QETH_RX_PULL_LEN),
  			       element->addr + offset, QETH_RX_PULL_LEN);
  			skb_fill_page_desc(*pskb, *pfrag, page,
  				offset + QETH_RX_PULL_LEN,
  				data_len - QETH_RX_PULL_LEN);
  			(*pskb)->data_len += data_len - QETH_RX_PULL_LEN;
  			(*pskb)->len      += data_len - QETH_RX_PULL_LEN;
  			(*pskb)->truesize += data_len - QETH_RX_PULL_LEN;
  			(*pfrag)++;
  		}
  	} else {
  		get_page(page);
  		skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
  		(*pskb)->data_len += data_len;
  		(*pskb)->len      += data_len;
  		(*pskb)->truesize += data_len;
  		(*pfrag)++;
  	}
  
  
  	return 0;
  }
  
  static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale)
  {
  	return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY);
  }
  
  struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
  		struct qeth_qdio_buffer *qethbuffer,
  		struct qdio_buffer_element **__element, int *__offset,
  		struct qeth_hdr **hdr)
  {
  	struct qdio_buffer_element *element = *__element;
  	struct qdio_buffer *buffer = qethbuffer->buffer;
  	int offset = *__offset;
  	struct sk_buff *skb = NULL;
  	int skb_len = 0;
  	void *data_ptr;
  	int data_len;
  	int headroom = 0;
  	int use_rx_sg = 0;
  	int frag = 0;
  
  	/* qeth_hdr must not cross element boundaries */
  	if (element->length < offset + sizeof(struct qeth_hdr)) {
  		if (qeth_is_last_sbale(element))
  			return NULL;
  		element++;
  		offset = 0;
  		if (element->length < sizeof(struct qeth_hdr))
  			return NULL;
  	}
  	*hdr = element->addr + offset;
  
  	offset += sizeof(struct qeth_hdr);
  	switch ((*hdr)->hdr.l2.id) {
  	case QETH_HEADER_TYPE_LAYER2:
  		skb_len = (*hdr)->hdr.l2.pkt_length;
  		break;
  	case QETH_HEADER_TYPE_LAYER3:
  		skb_len = (*hdr)->hdr.l3.length;
  		headroom = ETH_HLEN;
  		break;
  	case QETH_HEADER_TYPE_OSN:
  		skb_len = (*hdr)->hdr.osn.pdu_length;
  		headroom = sizeof(struct qeth_hdr);
  		break;
  	default:
  		break;
  	}
  
  	if (!skb_len)
  		return NULL;
  
  	if (((skb_len >= card->options.rx_sg_cb) &&
  	     (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
  	     (!atomic_read(&card->force_alloc_skb))) ||
  	    (card->options.cq == QETH_CQ_ENABLED)) {
  		use_rx_sg = 1;
  	} else {
  		skb = dev_alloc_skb(skb_len + headroom);
  		if (!skb)
  			goto no_mem;
  		if (headroom)
  			skb_reserve(skb, headroom);
  	}
  
  	data_ptr = element->addr + offset;
  	while (skb_len) {
  		data_len = min(skb_len, (int)(element->length - offset));
  		if (data_len) {
  			if (use_rx_sg) {
  				if (qeth_create_skb_frag(qethbuffer, element,
  				    &skb, offset, &frag, data_len))
  					goto no_mem;
  			} else {
  				memcpy(skb_put(skb, data_len), data_ptr,
  					data_len);
  			}
  		}
  		skb_len -= data_len;
  		if (skb_len) {
  			if (qeth_is_last_sbale(element)) {
  				QETH_CARD_TEXT(card, 4, "unexeob");
  				QETH_CARD_HEX(card, 2, buffer, sizeof(void *));
  				dev_kfree_skb_any(skb);
  				card->stats.rx_errors++;
  				return NULL;
  			}
  			element++;
  			offset = 0;
  			data_ptr = element->addr;
  		} else {
  			offset += data_len;
  		}
  	}
  	*__element = element;
  	*__offset = offset;
  	if (use_rx_sg && card->options.performance_stats) {
  		card->perf_stats.sg_skbs_rx++;
  		card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
  	}
  	return skb;
  no_mem:
  	if (net_ratelimit()) {
  		QETH_CARD_TEXT(card, 2, "noskbmem");
  	}
  	card->stats.rx_dropped++;
  	return NULL;
  }
  EXPORT_SYMBOL_GPL(qeth_core_get_next_skb);
  
  static int qeth_setassparms_cb(struct qeth_card *card,
  			       struct qeth_reply *reply, unsigned long data)
  {
  	struct qeth_ipa_cmd *cmd;
  
  	QETH_CARD_TEXT(card, 4, "defadpcb");
  
  	cmd = (struct qeth_ipa_cmd *) data;
  	if (cmd->hdr.return_code == 0) {
  		cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
  		if (cmd->hdr.prot_version == QETH_PROT_IPV4)
  			card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
  		if (cmd->hdr.prot_version == QETH_PROT_IPV6)
  			card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
  	}
  	if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
  	    cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
  		card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
  		QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
  	}
  	if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
  	    cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
  		card->info.tx_csum_mask =
  			cmd->data.setassparms.data.flags_32bit;
  		QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
  	}
  
  	return 0;
  }
  
  struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
  						 enum qeth_ipa_funcs ipa_func,
  						 __u16 cmd_code, __u16 len,
  						 enum qeth_prot_versions prot)
  {
  	struct qeth_cmd_buffer *iob;
  	struct qeth_ipa_cmd *cmd;
  
  	QETH_CARD_TEXT(card, 4, "getasscm");
  	iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
  
  	if (iob) {
  		cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
  		cmd->data.setassparms.hdr.assist_no = ipa_func;
  		cmd->data.setassparms.hdr.length = 8 + len;
  		cmd->data.setassparms.hdr.command_code = cmd_code;
  		cmd->data.setassparms.hdr.return_code = 0;
  		cmd->data.setassparms.hdr.seq_no = 0;
  	}
  
  	return iob;
  }
  EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd);
  
  int qeth_send_setassparms(struct qeth_card *card,
  			  struct qeth_cmd_buffer *iob, __u16 len, long data,
  			  int (*reply_cb)(struct qeth_card *,
  					  struct qeth_reply *, unsigned long),
  			  void *reply_param)
  {
  	int rc;
  	struct qeth_ipa_cmd *cmd;
  
  	QETH_CARD_TEXT(card, 4, "sendassp");
  
  	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
  	if (len <= sizeof(__u32))
  		cmd->data.setassparms.data.flags_32bit = (__u32) data;
  	else   /* (len > sizeof(__u32)) */
  		memcpy(&cmd->data.setassparms.data, (void *) data, len);
  
  	rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_send_setassparms);
  
  int qeth_send_simple_setassparms(struct qeth_card *card,
  				 enum qeth_ipa_funcs ipa_func,
  				 __u16 cmd_code, long data)
  {
  	int rc;
  	int length = 0;
  	struct qeth_cmd_buffer *iob;
  
  	QETH_CARD_TEXT(card, 4, "simassp4");
  	if (data)
  		length = sizeof(__u32);
  	iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
  				       length, QETH_PROT_IPV4);
  	if (!iob)
  		return -ENOMEM;
  	rc = qeth_send_setassparms(card, iob, length, data,
  				   qeth_setassparms_cb, NULL);
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms);
  
  static void qeth_unregister_dbf_views(void)
  {
  	int x;
  	for (x = 0; x < QETH_DBF_INFOS; x++) {
  		debug_unregister(qeth_dbf[x].id);
  		qeth_dbf[x].id = NULL;
  	}
  }
  
  void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...)
  {
  	char dbf_txt_buf[32];
  	va_list args;
  
  	if (!debug_level_enabled(id, level))
  		return;
  	va_start(args, fmt);
  	vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
  	va_end(args);
  	debug_text_event(id, level, dbf_txt_buf);
  }
  EXPORT_SYMBOL_GPL(qeth_dbf_longtext);
  
  static int qeth_register_dbf_views(void)
  {
  	int ret;
  	int x;
  
  	for (x = 0; x < QETH_DBF_INFOS; x++) {
  		/* register the areas */
  		qeth_dbf[x].id = debug_register(qeth_dbf[x].name,
  						qeth_dbf[x].pages,
  						qeth_dbf[x].areas,
  						qeth_dbf[x].len);
  		if (qeth_dbf[x].id == NULL) {
  			qeth_unregister_dbf_views();
  			return -ENOMEM;
  		}
  
  		/* register a view */
  		ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view);
  		if (ret) {
  			qeth_unregister_dbf_views();
  			return ret;
  		}
  
  		/* set a passing level */
  		debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level);
  	}
  
  	return 0;
  }
  
  int qeth_core_load_discipline(struct qeth_card *card,
  		enum qeth_discipline_id discipline)
  {
  	int rc = 0;
  	mutex_lock(&qeth_mod_mutex);
  	switch (discipline) {
  	case QETH_DISCIPLINE_LAYER3:
  		card->discipline = try_then_request_module(
  			symbol_get(qeth_l3_discipline), "qeth_l3");
  		break;
  	case QETH_DISCIPLINE_LAYER2:
  		card->discipline = try_then_request_module(
  			symbol_get(qeth_l2_discipline), "qeth_l2");
  		break;
  	}
  	if (!card->discipline) {
  		dev_err(&card->gdev->dev, "There is no kernel module to "
  			"support discipline %d\n", discipline);
  		rc = -EINVAL;
  	}
  	mutex_unlock(&qeth_mod_mutex);
  	return rc;
  }
  
  void qeth_core_free_discipline(struct qeth_card *card)
  {
  	if (card->options.layer2)
  		symbol_put(qeth_l2_discipline);
  	else
  		symbol_put(qeth_l3_discipline);
  	card->discipline = NULL;
  }
  
  static const struct device_type qeth_generic_devtype = {
  	.name = "qeth_generic",
  	.groups = qeth_generic_attr_groups,
  };
  static const struct device_type qeth_osn_devtype = {
  	.name = "qeth_osn",
  	.groups = qeth_osn_attr_groups,
  };
  
  #define DBF_NAME_LEN	20
  
  struct qeth_dbf_entry {
  	char dbf_name[DBF_NAME_LEN];
  	debug_info_t *dbf_info;
  	struct list_head dbf_list;
  };
  
  static LIST_HEAD(qeth_dbf_list);
  static DEFINE_MUTEX(qeth_dbf_list_mutex);
  
  static debug_info_t *qeth_get_dbf_entry(char *name)
  {
  	struct qeth_dbf_entry *entry;
  	debug_info_t *rc = NULL;
  
  	mutex_lock(&qeth_dbf_list_mutex);
  	list_for_each_entry(entry, &qeth_dbf_list, dbf_list) {
  		if (strcmp(entry->dbf_name, name) == 0) {
  			rc = entry->dbf_info;
  			break;
  		}
  	}
  	mutex_unlock(&qeth_dbf_list_mutex);
  	return rc;
  }
  
  static int qeth_add_dbf_entry(struct qeth_card *card, char *name)
  {
  	struct qeth_dbf_entry *new_entry;
  
  	card->debug = debug_register(name, 2, 1, 8);
  	if (!card->debug) {
  		QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf");
  		goto err;
  	}
  	if (debug_register_view(card->debug, &debug_hex_ascii_view))
  		goto err_dbg;
  	new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL);
  	if (!new_entry)
  		goto err_dbg;
  	strncpy(new_entry->dbf_name, name, DBF_NAME_LEN);
  	new_entry->dbf_info = card->debug;
  	mutex_lock(&qeth_dbf_list_mutex);
  	list_add(&new_entry->dbf_list, &qeth_dbf_list);
  	mutex_unlock(&qeth_dbf_list_mutex);
  
  	return 0;
  
  err_dbg:
  	debug_unregister(card->debug);
  err:
  	return -ENOMEM;
  }
  
  static void qeth_clear_dbf_list(void)
  {
  	struct qeth_dbf_entry *entry, *tmp;
  
  	mutex_lock(&qeth_dbf_list_mutex);
  	list_for_each_entry_safe(entry, tmp, &qeth_dbf_list, dbf_list) {
  		list_del(&entry->dbf_list);
  		debug_unregister(entry->dbf_info);
  		kfree(entry);
  	}
  	mutex_unlock(&qeth_dbf_list_mutex);
  }
  
  static int qeth_core_probe_device(struct ccwgroup_device *gdev)
  {
  	struct qeth_card *card;
  	struct device *dev;
  	int rc;
  	unsigned long flags;
  	char dbf_name[DBF_NAME_LEN];
  
  	QETH_DBF_TEXT(SETUP, 2, "probedev");
  
  	dev = &gdev->dev;
  	if (!get_device(dev))
  		return -ENODEV;
  
  	QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev));
  
  	card = qeth_alloc_card();
  	if (!card) {
  		QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM);
  		rc = -ENOMEM;
  		goto err_dev;
  	}
  
  	snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s",
  		dev_name(&gdev->dev));
  	card->debug = qeth_get_dbf_entry(dbf_name);
  	if (!card->debug) {
  		rc = qeth_add_dbf_entry(card, dbf_name);
  		if (rc)
  			goto err_card;
  	}
  
  	card->read.ccwdev  = gdev->cdev[0];
  	card->write.ccwdev = gdev->cdev[1];
  	card->data.ccwdev  = gdev->cdev[2];
  	dev_set_drvdata(&gdev->dev, card);
  	card->gdev = gdev;
  	gdev->cdev[0]->handler = qeth_irq;
  	gdev->cdev[1]->handler = qeth_irq;
  	gdev->cdev[2]->handler = qeth_irq;
  
  	rc = qeth_determine_card_type(card);
  	if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
  		goto err_card;
  	}
  	rc = qeth_setup_card(card);
  	if (rc) {
  		QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
  		goto err_card;
  	}
  
  	if (card->info.type == QETH_CARD_TYPE_OSN)
  		gdev->dev.type = &qeth_osn_devtype;
  	else
  		gdev->dev.type = &qeth_generic_devtype;
  
  	switch (card->info.type) {
  	case QETH_CARD_TYPE_OSN:
  	case QETH_CARD_TYPE_OSM:
  		rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
  		if (rc)
  			goto err_card;
  		rc = card->discipline->setup(card->gdev);
  		if (rc)
  			goto err_disc;
  	case QETH_CARD_TYPE_OSD:
  	case QETH_CARD_TYPE_OSX:
  	default:
  		break;
  	}
  
  	write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
  	list_add_tail(&card->list, &qeth_core_card_list.list);
  	write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
  
  	qeth_determine_capabilities(card);
  	return 0;
  
  err_disc:
  	qeth_core_free_discipline(card);
  err_card:
  	qeth_core_free_card(card);
  err_dev:
  	put_device(dev);
  	return rc;
  }
  
  static void qeth_core_remove_device(struct ccwgroup_device *gdev)
  {
  	unsigned long flags;
  	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
  
  	QETH_DBF_TEXT(SETUP, 2, "removedv");
  
  	if (card->discipline) {
  		card->discipline->remove(gdev);
  		qeth_core_free_discipline(card);
  	}
  
  	write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
  	list_del(&card->list);
  	write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
  	qeth_core_free_card(card);
  	dev_set_drvdata(&gdev->dev, NULL);
  	put_device(&gdev->dev);
  	return;
  }
  
  static int qeth_core_set_online(struct ccwgroup_device *gdev)
  {
  	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
  	int rc = 0;
  	int def_discipline;
  
  	if (!card->discipline) {
  		if (card->info.type == QETH_CARD_TYPE_IQD)
  			def_discipline = QETH_DISCIPLINE_LAYER3;
  		else
  			def_discipline = QETH_DISCIPLINE_LAYER2;
  		rc = qeth_core_load_discipline(card, def_discipline);
  		if (rc)
  			goto err;
  		rc = card->discipline->setup(card->gdev);
  		if (rc)
  			goto err;
  	}
  	rc = card->discipline->set_online(gdev);
  err:
  	return rc;
  }
  
  static int qeth_core_set_offline(struct ccwgroup_device *gdev)
  {
  	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
  	return card->discipline->set_offline(gdev);
  }
  
  static void qeth_core_shutdown(struct ccwgroup_device *gdev)
  {
  	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
  	if (card->discipline && card->discipline->shutdown)
  		card->discipline->shutdown(gdev);
  }
  
  static int qeth_core_prepare(struct ccwgroup_device *gdev)
  {
  	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
  	if (card->discipline && card->discipline->prepare)
  		return card->discipline->prepare(gdev);
  	return 0;
  }
  
  static void qeth_core_complete(struct ccwgroup_device *gdev)
  {
  	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
  	if (card->discipline && card->discipline->complete)
  		card->discipline->complete(gdev);
  }
  
  static int qeth_core_freeze(struct ccwgroup_device *gdev)
  {
  	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
  	if (card->discipline && card->discipline->freeze)
  		return card->discipline->freeze(gdev);
  	return 0;
  }
  
  static int qeth_core_thaw(struct ccwgroup_device *gdev)
  {
  	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
  	if (card->discipline && card->discipline->thaw)
  		return card->discipline->thaw(gdev);
  	return 0;
  }
  
  static int qeth_core_restore(struct ccwgroup_device *gdev)
  {
  	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
  	if (card->discipline && card->discipline->restore)
  		return card->discipline->restore(gdev);
  	return 0;
  }
  
  static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
  	.driver = {
  		.owner = THIS_MODULE,
  		.name = "qeth",
  	},
  	.setup = qeth_core_probe_device,
  	.remove = qeth_core_remove_device,
  	.set_online = qeth_core_set_online,
  	.set_offline = qeth_core_set_offline,
  	.shutdown = qeth_core_shutdown,
  	.prepare = qeth_core_prepare,
  	.complete = qeth_core_complete,
  	.freeze = qeth_core_freeze,
  	.thaw = qeth_core_thaw,
  	.restore = qeth_core_restore,
  };
  
  static ssize_t qeth_core_driver_group_store(struct device_driver *ddrv,
  					    const char *buf, size_t count)
  {
  	int err;
  
  	err = ccwgroup_create_dev(qeth_core_root_dev,
  				  &qeth_core_ccwgroup_driver, 3, buf);
  
  	return err ? err : count;
  }
  static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store);
  
  static struct attribute *qeth_drv_attrs[] = {
  	&driver_attr_group.attr,
  	NULL,
  };
  static struct attribute_group qeth_drv_attr_group = {
  	.attrs = qeth_drv_attrs,
  };
  static const struct attribute_group *qeth_drv_attr_groups[] = {
  	&qeth_drv_attr_group,
  	NULL,
  };
  
  static struct {
  	const char str[ETH_GSTRING_LEN];
  } qeth_ethtool_stats_keys[] = {
  /*  0 */{"rx skbs"},
  	{"rx buffers"},
  	{"tx skbs"},
  	{"tx buffers"},
  	{"tx skbs no packing"},
  	{"tx buffers no packing"},
  	{"tx skbs packing"},
  	{"tx buffers packing"},
  	{"tx sg skbs"},
  	{"tx sg frags"},
  /* 10 */{"rx sg skbs"},
  	{"rx sg frags"},
  	{"rx sg page allocs"},
  	{"tx large kbytes"},
  	{"tx large count"},
  	{"tx pk state ch n->p"},
  	{"tx pk state ch p->n"},
  	{"tx pk watermark low"},
  	{"tx pk watermark high"},
  	{"queue 0 buffer usage"},
  /* 20 */{"queue 1 buffer usage"},
  	{"queue 2 buffer usage"},
  	{"queue 3 buffer usage"},
  	{"rx poll time"},
  	{"rx poll count"},
  	{"rx do_QDIO time"},
  	{"rx do_QDIO count"},
  	{"tx handler time"},
  	{"tx handler count"},
  	{"tx time"},
  /* 30 */{"tx count"},
  	{"tx do_QDIO time"},
  	{"tx do_QDIO count"},
  	{"tx csum"},
  	{"tx lin"},
  	{"cq handler count"},
  	{"cq handler time"}
  };
  
  int qeth_core_get_sset_count(struct net_device *dev, int stringset)
  {
  	switch (stringset) {
  	case ETH_SS_STATS:
  		return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN);
  	default:
  		return -EINVAL;
  	}
  }
  EXPORT_SYMBOL_GPL(qeth_core_get_sset_count);
  
  void qeth_core_get_ethtool_stats(struct net_device *dev,
  		struct ethtool_stats *stats, u64 *data)
  {
  	struct qeth_card *card = dev->ml_priv;
  	data[0] = card->stats.rx_packets -
  				card->perf_stats.initial_rx_packets;
  	data[1] = card->perf_stats.bufs_rec;
  	data[2] = card->stats.tx_packets -
  				card->perf_stats.initial_tx_packets;
  	data[3] = card->perf_stats.bufs_sent;
  	data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
  			- card->perf_stats.skbs_sent_pack;
  	data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
  	data[6] = card->perf_stats.skbs_sent_pack;
  	data[7] = card->perf_stats.bufs_sent_pack;
  	data[8] = card->perf_stats.sg_skbs_sent;
  	data[9] = card->perf_stats.sg_frags_sent;
  	data[10] = card->perf_stats.sg_skbs_rx;
  	data[11] = card->perf_stats.sg_frags_rx;
  	data[12] = card->perf_stats.sg_alloc_page_rx;
  	data[13] = (card->perf_stats.large_send_bytes >> 10);
  	data[14] = card->perf_stats.large_send_cnt;
  	data[15] = card->perf_stats.sc_dp_p;
  	data[16] = card->perf_stats.sc_p_dp;
  	data[17] = QETH_LOW_WATERMARK_PACK;
  	data[18] = QETH_HIGH_WATERMARK_PACK;
  	data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
  	data[20] = (card->qdio.no_out_queues > 1) ?
  			atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
  	data[21] = (card->qdio.no_out_queues > 2) ?
  			atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
  	data[22] = (card->qdio.no_out_queues > 3) ?
  			atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
  	data[23] = card->perf_stats.inbound_time;
  	data[24] = card->perf_stats.inbound_cnt;
  	data[25] = card->perf_stats.inbound_do_qdio_time;
  	data[26] = card->perf_stats.inbound_do_qdio_cnt;
  	data[27] = card->perf_stats.outbound_handler_time;
  	data[28] = card->perf_stats.outbound_handler_cnt;
  	data[29] = card->perf_stats.outbound_time;
  	data[30] = card->perf_stats.outbound_cnt;
  	data[31] = card->perf_stats.outbound_do_qdio_time;
  	data[32] = card->perf_stats.outbound_do_qdio_cnt;
  	data[33] = card->perf_stats.tx_csum;
  	data[34] = card->perf_stats.tx_lin;
  	data[35] = card->perf_stats.cq_cnt;
  	data[36] = card->perf_stats.cq_time;
  }
  EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
  
  void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data)
  {
  	switch (stringset) {
  	case ETH_SS_STATS:
  		memcpy(data, &qeth_ethtool_stats_keys,
  			sizeof(qeth_ethtool_stats_keys));
  		break;
  	default:
  		WARN_ON(1);
  		break;
  	}
  }
  EXPORT_SYMBOL_GPL(qeth_core_get_strings);
  
  void qeth_core_get_drvinfo(struct net_device *dev,
  		struct ethtool_drvinfo *info)
  {
  	struct qeth_card *card = dev->ml_priv;
  
  	strlcpy(info->driver, card->options.layer2 ? "qeth_l2" : "qeth_l3",
  		sizeof(info->driver));
  	strlcpy(info->version, "1.0", sizeof(info->version));
  	strlcpy(info->fw_version, card->info.mcl_level,
  		sizeof(info->fw_version));
  	snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s",
  		 CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card));
  }
  EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
  
  /* Helper function to fill 'advertizing' and 'supported' which are the same. */
  /* Autoneg and full-duplex are supported and advertized uncondionally.	     */
  /* Always advertize and support all speeds up to specified, and only one     */
  /* specified port type.							     */
  static void qeth_set_ecmd_adv_sup(struct ethtool_cmd *ecmd,
  				int maxspeed, int porttype)
  {
  	int port_sup, port_adv, spd_sup, spd_adv;
  
  	switch (porttype) {
  	case PORT_TP:
  		port_sup = SUPPORTED_TP;
  		port_adv = ADVERTISED_TP;
  		break;
  	case PORT_FIBRE:
  		port_sup = SUPPORTED_FIBRE;
  		port_adv = ADVERTISED_FIBRE;
  		break;
  	default:
  		port_sup = SUPPORTED_TP;
  		port_adv = ADVERTISED_TP;
  		WARN_ON_ONCE(1);
  	}
  
  	/* "Fallthrough" case'es ordered from high to low result in setting  */
  	/* flags cumulatively, starting from the specified speed and down to */
  	/* the lowest possible.						     */
  	spd_sup = 0;
  	spd_adv = 0;
  	switch (maxspeed) {
  	case SPEED_10000:
  		spd_sup |= SUPPORTED_10000baseT_Full;
  		spd_adv |= ADVERTISED_10000baseT_Full;
  	case SPEED_1000:
  		spd_sup |= SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full;
  		spd_adv |= ADVERTISED_1000baseT_Half |
  						ADVERTISED_1000baseT_Full;
  	case SPEED_100:
  		spd_sup |= SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full;
  		spd_adv |= ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full;
  	case SPEED_10:
  		spd_sup |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full;
  		spd_adv |= ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full;
  	break;
  	default:
  		spd_sup = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full;
  		spd_adv = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full;
  		WARN_ON_ONCE(1);
  	}
  	ecmd->advertising = ADVERTISED_Autoneg | port_adv | spd_adv;
  	ecmd->supported = SUPPORTED_Autoneg | port_sup | spd_sup;
  }
  
  int qeth_core_ethtool_get_settings(struct net_device *netdev,
  					struct ethtool_cmd *ecmd)
  {
  	struct qeth_card *card = netdev->ml_priv;
  	enum qeth_link_types link_type;
  	struct carrier_info carrier_info;
  	int rc;
  	u32 speed;
  
  	if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
  		link_type = QETH_LINK_TYPE_10GBIT_ETH;
  	else
  		link_type = card->info.link_type;
  
  	ecmd->transceiver = XCVR_INTERNAL;
  	ecmd->duplex = DUPLEX_FULL;
  	ecmd->autoneg = AUTONEG_ENABLE;
  
  	switch (link_type) {
  	case QETH_LINK_TYPE_FAST_ETH:
  	case QETH_LINK_TYPE_LANE_ETH100:
  		qeth_set_ecmd_adv_sup(ecmd, SPEED_100, PORT_TP);
  		speed = SPEED_100;
  		ecmd->port = PORT_TP;
  		break;
  
  	case QETH_LINK_TYPE_GBIT_ETH:
  	case QETH_LINK_TYPE_LANE_ETH1000:
  		qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_FIBRE);
  		speed = SPEED_1000;
  		ecmd->port = PORT_FIBRE;
  		break;
  
  	case QETH_LINK_TYPE_10GBIT_ETH:
  		qeth_set_ecmd_adv_sup(ecmd, SPEED_10000, PORT_FIBRE);
  		speed = SPEED_10000;
  		ecmd->port = PORT_FIBRE;
  		break;
  
  	default:
  		qeth_set_ecmd_adv_sup(ecmd, SPEED_10, PORT_TP);
  		speed = SPEED_10;
  		ecmd->port = PORT_TP;
  	}
  	ethtool_cmd_speed_set(ecmd, speed);
  
  	/* Check if we can obtain more accurate information.	 */
  	/* If QUERY_CARD_INFO command is not supported or fails, */
  	/* just return the heuristics that was filled above.	 */
  	if (!qeth_card_hw_is_reachable(card))
  		return -ENODEV;
  	rc = qeth_query_card_info(card, &carrier_info);
  	if (rc == -EOPNOTSUPP) /* for old hardware, return heuristic */
  		return 0;
  	if (rc) /* report error from the hardware operation */
  		return rc;
  	/* on success, fill in the information got from the hardware */
  
  	netdev_dbg(netdev,
  	"card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n",
  			carrier_info.card_type,
  			carrier_info.port_mode,
  			carrier_info.port_speed);
  
  	/* Update attributes for which we've obtained more authoritative */
  	/* information, leave the rest the way they where filled above.  */
  	switch (carrier_info.card_type) {
  	case CARD_INFO_TYPE_1G_COPPER_A:
  	case CARD_INFO_TYPE_1G_COPPER_B:
  		qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_TP);
  		ecmd->port = PORT_TP;
  		break;
  	case CARD_INFO_TYPE_1G_FIBRE_A:
  	case CARD_INFO_TYPE_1G_FIBRE_B:
  		qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_FIBRE);
  		ecmd->port = PORT_FIBRE;
  		break;
  	case CARD_INFO_TYPE_10G_FIBRE_A:
  	case CARD_INFO_TYPE_10G_FIBRE_B:
  		qeth_set_ecmd_adv_sup(ecmd, SPEED_10000, PORT_FIBRE);
  		ecmd->port = PORT_FIBRE;
  		break;
  	}
  
  	switch (carrier_info.port_mode) {
  	case CARD_INFO_PORTM_FULLDUPLEX:
  		ecmd->duplex = DUPLEX_FULL;
  		break;
  	case CARD_INFO_PORTM_HALFDUPLEX:
  		ecmd->duplex = DUPLEX_HALF;
  		break;
  	}
  
  	switch (carrier_info.port_speed) {
  	case CARD_INFO_PORTS_10M:
  		speed = SPEED_10;
  		break;
  	case CARD_INFO_PORTS_100M:
  		speed = SPEED_100;
  		break;
  	case CARD_INFO_PORTS_1G:
  		speed = SPEED_1000;
  		break;
  	case CARD_INFO_PORTS_10G:
  		speed = SPEED_10000;
  		break;
  	}
  	ethtool_cmd_speed_set(ecmd, speed);
  
  	return 0;
  }
  EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings);
  
  static int qeth_send_checksum_command(struct qeth_card *card)
  {
  	int rc;
  
  	rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
  					  IPA_CMD_ASS_START, 0);
  	if (rc) {
  		dev_warn(&card->gdev->dev, "Starting HW checksumming for %s "
  			"failed, using SW checksumming\n",
  			QETH_CARD_IFNAME(card));
  		return rc;
  	}
  	rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
  					  IPA_CMD_ASS_ENABLE,
  					  card->info.csum_mask);
  	if (rc) {
  		dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s "
  			"failed, using SW checksumming\n",
  			QETH_CARD_IFNAME(card));
  		return rc;
  	}
  	return 0;
  }
  
  int qeth_set_rx_csum(struct qeth_card *card, int on)
  {
  	int rc;
  
  	if (on) {
  		rc = qeth_send_checksum_command(card);
  		if (rc)
  			return -EIO;
  		dev_info(&card->gdev->dev,
  			"HW Checksumming (inbound) enabled\n");
  	} else {
  		rc = qeth_send_simple_setassparms(card,
  			IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0);
  		if (rc)
  			return -EIO;
  	}
  	return 0;
  }
  EXPORT_SYMBOL_GPL(qeth_set_rx_csum);
  
  int qeth_start_ipa_tx_checksum(struct qeth_card *card)
  {
  	int rc = 0;
  
  	if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
  		return rc;
  	rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
  					  IPA_CMD_ASS_START, 0);
  	if (rc)
  		goto err_out;
  	rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
  					  IPA_CMD_ASS_ENABLE,
  					  card->info.tx_csum_mask);
  	if (rc)
  		goto err_out;
  
  	dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n");
  	return rc;
  err_out:
  	dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s "
  		"failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card));
  	return rc;
  }
  EXPORT_SYMBOL_GPL(qeth_start_ipa_tx_checksum);
  
  static int __init qeth_core_init(void)
  {
  	int rc;
  
  	pr_info("loading core functions\n");
  	INIT_LIST_HEAD(&qeth_core_card_list.list);
  	INIT_LIST_HEAD(&qeth_dbf_list);
  	rwlock_init(&qeth_core_card_list.rwlock);
  	mutex_init(&qeth_mod_mutex);
  
  	qeth_wq = create_singlethread_workqueue("qeth_wq");
  
  	rc = qeth_register_dbf_views();
  	if (rc)
  		goto out_err;
  	qeth_core_root_dev = root_device_register("qeth");
  	rc = PTR_ERR_OR_ZERO(qeth_core_root_dev);
  	if (rc)
  		goto register_err;
  	qeth_core_header_cache = kmem_cache_create("qeth_hdr",
  			sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL);
  	if (!qeth_core_header_cache) {
  		rc = -ENOMEM;
  		goto slab_err;
  	}
  	qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf",
  			sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL);
  	if (!qeth_qdio_outbuf_cache) {
  		rc = -ENOMEM;
  		goto cqslab_err;
  	}
  	rc = ccw_driver_register(&qeth_ccw_driver);
  	if (rc)
  		goto ccw_err;
  	qeth_core_ccwgroup_driver.driver.groups = qeth_drv_attr_groups;
  	rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
  	if (rc)
  		goto ccwgroup_err;
  
  	return 0;
  
  ccwgroup_err:
  	ccw_driver_unregister(&qeth_ccw_driver);
  ccw_err:
  	kmem_cache_destroy(qeth_qdio_outbuf_cache);
  cqslab_err:
  	kmem_cache_destroy(qeth_core_header_cache);
  slab_err:
  	root_device_unregister(qeth_core_root_dev);
  register_err:
  	qeth_unregister_dbf_views();
  out_err:
  	pr_err("Initializing the qeth device driver failed\n");
  	return rc;
  }
  
  static void __exit qeth_core_exit(void)
  {
  	qeth_clear_dbf_list();
  	destroy_workqueue(qeth_wq);
  	ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
  	ccw_driver_unregister(&qeth_ccw_driver);
  	kmem_cache_destroy(qeth_qdio_outbuf_cache);
  	kmem_cache_destroy(qeth_core_header_cache);
  	root_device_unregister(qeth_core_root_dev);
  	qeth_unregister_dbf_views();
  	pr_info("core functions removed\n");
  }
  
  module_init(qeth_core_init);
  module_exit(qeth_core_exit);
  MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
  MODULE_DESCRIPTION("qeth core functions");
  MODULE_LICENSE("GPL");
  