Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:
 "Highlights:

   1) Support AES128-CCM ciphers in kTLS, from Vakul Garg.

   2) Add fib_sync_mem to control the amount of dirty memory we allow to
      queue up between synchronize RCU calls, from David Ahern.

   3) Make flow classifier more lockless, from Vlad Buslov.

   4) Add PHY downshift support to aquantia driver, from Heiner
      Kallweit.

   5) Add SKB cache for TCP rx and tx, from Eric Dumazet. This reduces
      contention on SLAB spinlocks in heavy RPC workloads.

   6) Partial GSO offload support in XFRM, from Boris Pismenny.

   7) Add fast link down support to ethtool, from Heiner Kallweit.

   8) Use siphash for IP ID generator, from Eric Dumazet.

   9) Pull nexthops even further out from ipv4/ipv6 routes and FIB
      entries, from David Ahern.

  10) Move skb->xmit_more into a per-cpu variable, from Florian
      Westphal.

  11) Improve eBPF verifier speed and increase maximum program size,
      from Alexei Starovoitov.

  12) Eliminate per-bucket spinlocks in rhashtable, and instead use bit
      spinlocks. From Neil Brown.

  13) Allow tunneling with GUE encap in ipvs, from Jacky Hu.

  14) Improve link partner cap detection in generic PHY code, from
      Heiner Kallweit.

  15) Add layer 2 encap support to bpf_skb_adjust_room(), from Alan
      Maguire.

  16) Remove SKB list implementation assumptions in SCTP, your's truly.

  17) Various cleanups, optimizations, and simplifications in r8169
      driver. From Heiner Kallweit.

  18) Add memory accounting on TX and RX path of SCTP, from Xin Long.

  19) Switch PHY drivers over to use dynamic featue detection, from
      Heiner Kallweit.

  20) Support flow steering without masking in dpaa2-eth, from Ioana
      Ciocoi.

  21) Implement ndo_get_devlink_port in netdevsim driver, from Jiri
      Pirko.

  22) Increase the strict parsing of current and future netlink
      attributes, also export such policies to userspace. From Johannes
      Berg.

  23) Allow DSA tag drivers to be modular, from Andrew Lunn.

  24) Remove legacy DSA probing support, also from Andrew Lunn.

  25) Allow ll_temac driver to be used on non-x86 platforms, from Esben
      Haabendal.

  26) Add a generic tracepoint for TX queue timeouts to ease debugging,
      from Cong Wang.

  27) More indirect call optimizations, from Paolo Abeni"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1763 commits)
  cxgb4: Fix error path in cxgb4_init_module
  net: phy: improve pause mode reporting in phy_print_status
  dt-bindings: net: Fix a typo in the phy-mode list for ethernet bindings
  net: macb: Change interrupt and napi enable order in open
  net: ll_temac: Improve error message on error IRQ
  net/sched: remove block pointer from common offload structure
  net: ethernet: support of_get_mac_address new ERR_PTR error
  net: usb: smsc: fix warning reported by kbuild test robot
  staging: octeon-ethernet: Fix of_get_mac_address ERR_PTR check
  net: dsa: support of_get_mac_address new ERR_PTR error
  net: dsa: sja1105: Fix status initialization in sja1105_get_ethtool_stats
  vrf: sit mtu should not be updated when vrf netdev is the link
  net: dsa: Fix error cleanup path in dsa_init_module
  l2tp: Fix possible NULL pointer dereference
  taprio: add null check on sched_nest to avoid potential null pointer dereference
  net: mvpp2: cls: fix less than zero check on a u32 variable
  net_sched: sch_fq: handle non connected flows
  net_sched: sch_fq: do not assume EDT packets are ordered
  net: hns3: use devm_kcalloc when allocating desc_cb
  net: hns3: some cleanup for struct hns3_enet_ring
  ...

1 files changed, 466 insertions, 453 deletions

diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 44bd6f04c145..009f2c0ec504 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -61,13 +61,13 @@ static struct kmem_cache *qeth_qdio_outbuf_cache;
 static struct device *qeth_core_root_dev;
 static struct lock_class_key qdio_out_skb_queue_key;
 
-static void qeth_send_control_data_cb(struct qeth_card *card,
-				      struct qeth_channel *channel,
-				      struct qeth_cmd_buffer *iob);
+static void qeth_issue_next_read_cb(struct qeth_card *card,
+				    struct qeth_channel *channel,
+				    struct qeth_cmd_buffer *iob);
 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *);
 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_free_qdio_queues(struct qeth_card *card);
 static void qeth_notify_skbs(struct qeth_qdio_out_q *queue,
 		struct qeth_qdio_out_buffer *buf,
 		enum iucv_tx_notify notification);
@@ -85,7 +85,7 @@ static void qeth_close_dev_handler(struct work_struct *work)
 
 static const char *qeth_get_cardname(struct qeth_card *card)
 {
-	if (card->info.guestlan) {
+	if (IS_VM_NIC(card)) {
 		switch (card->info.type) {
 		case QETH_CARD_TYPE_OSD:
 			return " Virtual NIC QDIO";
@@ -120,7 +120,7 @@ static const char *qeth_get_cardname(struct qeth_card *card)
 /* max length to be returned: 14 */
 const char *qeth_get_cardname_short(struct qeth_card *card)
 {
-	if (card->info.guestlan) {
+	if (IS_VM_NIC(card)) {
 		switch (card->info.type) {
 		case QETH_CARD_TYPE_OSD:
 			return "Virt.NIC QDIO";
@@ -511,7 +511,9 @@ static int __qeth_issue_next_read(struct qeth_card *card)
 				 CARD_DEVID(card));
 		return -ENOMEM;
 	}
+
 	qeth_setup_ccw(channel->ccw, CCW_CMD_READ, QETH_BUFSIZE, iob->data);
+	iob->callback = qeth_issue_next_read_cb;
 	QETH_CARD_TEXT(card, 6, "noirqpnd");
 	rc = ccw_device_start(channel->ccwdev, channel->ccw,
 			      (addr_t) iob, 0, 0);
@@ -542,11 +544,10 @@ static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
 {
 	struct qeth_reply *reply;
 
-	reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
+	reply = kzalloc(sizeof(*reply), GFP_KERNEL);
 	if (reply) {
 		refcount_set(&reply->refcnt, 1);
-		atomic_set(&reply->received, 0);
-		init_waitqueue_head(&reply->wait_q);
+		init_completion(&reply->received);
 	}
 	return reply;
 }
@@ -576,10 +577,10 @@ static void qeth_dequeue_reply(struct qeth_card *card, struct qeth_reply *reply)
 	spin_unlock_irq(&card->lock);
 }
 
-static void qeth_notify_reply(struct qeth_reply *reply)
+static void qeth_notify_reply(struct qeth_reply *reply, int reason)
 {
-	atomic_inc(&reply->received);
-	wake_up(&reply->wait_q);
+	reply->rc = reason;
+	complete(&reply->received);
 }
 
 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
@@ -664,10 +665,8 @@ void qeth_clear_ipacmd_list(struct qeth_card *card)
 	QETH_CARD_TEXT(card, 4, "clipalst");
 
 	spin_lock_irqsave(&card->lock, flags);
-	list_for_each_entry(reply, &card->cmd_waiter_list, list) {
-		reply->rc = -EIO;
-		qeth_notify_reply(reply);
-	}
+	list_for_each_entry(reply, &card->cmd_waiter_list, list)
+		qeth_notify_reply(reply, -EIO);
 	spin_unlock_irqrestore(&card->lock, flags);
 }
 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
@@ -675,9 +674,6 @@ 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 %#04x\n",
@@ -704,6 +700,7 @@ static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
 	do {
 		if (channel->iob[index].state == BUF_STATE_FREE) {
 			channel->iob[index].state = BUF_STATE_LOCKED;
+			channel->iob[index].timeout = QETH_TIMEOUT;
 			channel->io_buf_no = (channel->io_buf_no + 1) %
 				QETH_CMD_BUFFER_NO;
 			memset(channel->iob[index].data, 0, QETH_BUFSIZE);
@@ -722,7 +719,7 @@ void qeth_release_buffer(struct qeth_channel *channel,
 
 	spin_lock_irqsave(&channel->iob_lock, flags);
 	iob->state = BUF_STATE_FREE;
-	iob->callback = qeth_send_control_data_cb;
+	iob->callback = NULL;
 	if (iob->reply) {
 		qeth_put_reply(iob->reply);
 		iob->reply = NULL;
@@ -743,10 +740,8 @@ static void qeth_cancel_cmd(struct qeth_cmd_buffer *iob, int rc)
 {
 	struct qeth_reply *reply = iob->reply;
 
-	if (reply) {
-		reply->rc = rc;
-		qeth_notify_reply(reply);
-	}
+	if (reply)
+		qeth_notify_reply(reply, rc);
 	qeth_release_buffer(iob->channel, iob);
 }
 
@@ -780,9 +775,9 @@ void qeth_clear_cmd_buffers(struct qeth_channel *channel)
 }
 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
 
-static void qeth_send_control_data_cb(struct qeth_card *card,
-				      struct qeth_channel *channel,
-				      struct qeth_cmd_buffer *iob)
+static void qeth_issue_next_read_cb(struct qeth_card *card,
+				    struct qeth_channel *channel,
+				    struct qeth_cmd_buffer *iob)
 {
 	struct qeth_ipa_cmd *cmd = NULL;
 	struct qeth_reply *reply = NULL;
@@ -846,11 +841,8 @@ static void qeth_send_control_data_cb(struct qeth_card *card,
 		}
 	}
 
-	if (rc <= 0) {
-		reply->rc = rc;
-		qeth_notify_reply(reply);
-	}
-
+	if (rc <= 0)
+		qeth_notify_reply(reply, rc);
 	qeth_put_reply(reply);
 
 out:
@@ -1173,20 +1165,19 @@ static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
 
 	qeth_release_skbs(buf);
 
-	for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
+	for (i = 0; i < queue->max_elements; ++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;
 	}
 
-	qeth_scrub_qdio_buffer(buf->buffer,
-			       QETH_MAX_BUFFER_ELEMENTS(queue->card));
+	qeth_scrub_qdio_buffer(buf->buffer, queue->max_elements);
 	buf->next_element_to_fill = 0;
 	atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
 }
 
-static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free)
+static void qeth_drain_output_queue(struct qeth_qdio_out_q *q, bool free)
 {
 	int j;
 
@@ -1202,19 +1193,18 @@ static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free)
 	}
 }
 
-void qeth_clear_qdio_buffers(struct qeth_card *card)
+void qeth_drain_output_queues(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);
-		}
+		if (card->qdio.out_qs[i])
+			qeth_drain_output_queue(card->qdio.out_qs[i], false);
 	}
 }
-EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers);
+EXPORT_SYMBOL_GPL(qeth_drain_output_queues);
 
 static void qeth_free_buffer_pool(struct qeth_card *card)
 {
@@ -1273,7 +1263,6 @@ static int qeth_setup_channel(struct qeth_channel *channel, bool alloc_buffers)
 			break;
 		channel->iob[cnt].state = BUF_STATE_FREE;
 		channel->iob[cnt].channel = channel;
-		channel->iob[cnt].callback = qeth_send_control_data_cb;
 	}
 	if (cnt < QETH_CMD_BUFFER_NO) {
 		qeth_clean_channel(channel);
@@ -1285,30 +1274,28 @@ static int qeth_setup_channel(struct qeth_channel *channel, bool alloc_buffers)
 	return 0;
 }
 
-static void qeth_set_single_write_queues(struct qeth_card *card)
+static void qeth_osa_set_output_queues(struct qeth_card *card, bool single)
 {
-	if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) &&
-	    (card->qdio.no_out_queues == 4))
-		qeth_free_qdio_buffers(card);
+	unsigned int count = single ? 1 : card->dev->num_tx_queues;
 
-	card->qdio.no_out_queues = 1;
-	if (card->qdio.default_out_queue != 0)
-		dev_info(&card->gdev->dev, "Priority Queueing not supported\n");
+	rtnl_lock();
+	netif_set_real_num_tx_queues(card->dev, count);
+	rtnl_unlock();
 
-	card->qdio.default_out_queue = 0;
-}
+	if (card->qdio.no_out_queues == count)
+		return;
 
-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;
+	if (atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED)
+		qeth_free_qdio_queues(card);
+
+	if (count == 1)
+		dev_info(&card->gdev->dev, "Priority Queueing not supported\n");
+
+	card->qdio.default_out_queue = single ? 0 : QETH_DEFAULT_QUEUE;
+	card->qdio.no_out_queues = count;
 }
 
-static void qeth_update_from_chp_desc(struct qeth_card *card)
+static int qeth_update_from_chp_desc(struct qeth_card *card)
 {
 	struct ccw_device *ccwdev;
 	struct channel_path_desc_fmt0 *chp_dsc;
@@ -1318,21 +1305,18 @@ static void qeth_update_from_chp_desc(struct qeth_card *card)
 	ccwdev = card->data.ccwdev;
 	chp_dsc = ccw_device_get_chp_desc(ccwdev, 0);
 	if (!chp_dsc)
-		goto out;
+		return -ENOMEM;
 
 	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:
+	if (IS_OSD(card) || IS_OSX(card))
+		/* CHPP field bit 6 == 1 -> single queue */
+		qeth_osa_set_output_queues(card, chp_dsc->chpp & 0x02);
+
 	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);
+	return 0;
 }
 
 static void qeth_init_qdio_info(struct qeth_card *card)
@@ -1341,12 +1325,11 @@ static void qeth_init_qdio_info(struct qeth_card *card)
 	atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
 	card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
 	card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
-	card->qdio.no_out_queues = QETH_MAX_QUEUES;
 
 	/* inbound */
 	card->qdio.no_in_queues = 1;
 	card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
-	if (card->info.type == QETH_CARD_TYPE_IQD)
+	if (IS_IQD(card))
 		card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT;
 	else
 		card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
@@ -1409,9 +1392,7 @@ static void qeth_setup_card(struct qeth_card *card)
 
 	card->info.type = CARD_RDEV(card)->id.driver_info;
 	card->state = CARD_STATE_DOWN;
-	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);
@@ -1451,7 +1432,8 @@ static struct qeth_card *qeth_alloc_card(struct ccwgroup_device *gdev)
 	CARD_WDEV(card) = gdev->cdev[1];
 	CARD_DDEV(card) = gdev->cdev[2];
 
-	card->event_wq = alloc_ordered_workqueue("%s", 0, dev_name(&gdev->dev));
+	card->event_wq = alloc_ordered_workqueue("%s_event", 0,
+						 dev_name(&gdev->dev));
 	if (!card->event_wq)
 		goto out_wq;
 	if (qeth_setup_channel(&card->read, true))
@@ -1571,7 +1553,7 @@ int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
 	switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
 		QETH_QDIO_CLEANING)) {
 	case QETH_QDIO_ESTABLISHED:
-		if (card->info.type == QETH_CARD_TYPE_IQD)
+		if (IS_IQD(card))
 			rc = qdio_shutdown(CARD_DDEV(card),
 				QDIO_FLAG_CLEANUP_USING_HALT);
 		else
@@ -1644,8 +1626,8 @@ static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd)
 	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']));
+	card->info.is_vm_nic = ((prcd[0x10] == _ascebc['V']) &&
+				(prcd[0x11] == _ascebc['M']));
 }
 
 static enum qeth_discipline_id qeth_vm_detect_layer(struct qeth_card *card)
@@ -1709,13 +1691,11 @@ static enum qeth_discipline_id qeth_enforce_discipline(struct qeth_card *card)
 {
 	enum qeth_discipline_id disc = QETH_DISCIPLINE_UNDETERMINED;
 
-	if (card->info.type == QETH_CARD_TYPE_OSM ||
-	    card->info.type == QETH_CARD_TYPE_OSN)
+	if (IS_OSM(card) || IS_OSN(card))
 		disc = QETH_DISCIPLINE_LAYER2;
-	else if (card->info.guestlan)
-		disc = (card->info.type == QETH_CARD_TYPE_IQD) ?
-				QETH_DISCIPLINE_LAYER3 :
-				qeth_vm_detect_layer(card);
+	else if (IS_VM_NIC(card))
+		disc = IS_IQD(card) ? QETH_DISCIPLINE_LAYER3 :
+				      qeth_vm_detect_layer(card);
 
 	switch (disc) {
 	case QETH_DISCIPLINE_LAYER2:
@@ -1771,121 +1751,16 @@ static void qeth_init_func_level(struct qeth_card *card)
 	}
 }
 
-static int qeth_idx_activate_get_answer(struct qeth_card *card,
-					struct qeth_channel *channel,
-					void (*reply_cb)(struct qeth_card *,
-							 struct qeth_channel *,
-							 struct qeth_cmd_buffer *))
-{
-	struct qeth_cmd_buffer *iob;
-	int rc;
-
-	QETH_DBF_TEXT(SETUP, 2, "idxanswr");
-	iob = qeth_get_buffer(channel);
-	if (!iob)
-		return -ENOMEM;
-	iob->callback = reply_cb;
-	qeth_setup_ccw(channel->ccw, CCW_CMD_READ, QETH_BUFSIZE, iob->data);
-
-	wait_event(card->wait_q,
-		   atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
-	QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
-	spin_lock_irq(get_ccwdev_lock(channel->ccwdev));
-	rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw,
-				      (addr_t) iob, 0, 0, QETH_TIMEOUT);
-	spin_unlock_irq(get_ccwdev_lock(channel->ccwdev));
-
-	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);
-		qeth_release_buffer(channel, iob);
-		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);
-	} else
-		rc = 0;
-	return rc;
-}
-
-static int qeth_idx_activate_channel(struct qeth_card *card,
-				     struct qeth_channel *channel,
-				     void (*reply_cb)(struct qeth_card *,
-						      struct qeth_channel *,
-						      struct qeth_cmd_buffer *))
+static void qeth_idx_finalize_cmd(struct qeth_card *card,
+				  struct qeth_cmd_buffer *iob,
+				  unsigned int length)
 {
-	struct qeth_cmd_buffer *iob;
-	__u16 temp;
-	__u8 tmp;
-	int rc;
-	struct ccw_dev_id temp_devid;
-
-	QETH_DBF_TEXT(SETUP, 2, "idxactch");
+	qeth_setup_ccw(iob->channel->ccw, CCW_CMD_WRITE, length, iob->data);
 
-	iob = qeth_get_buffer(channel);
-	if (!iob)
-		return -ENOMEM;
-	iob->callback = reply_cb;
-	qeth_setup_ccw(channel->ccw, CCW_CMD_WRITE, IDX_ACTIVATE_SIZE,
-		       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);
+	memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), &card->seqno.trans_hdr,
+	       QETH_SEQ_NO_LENGTH);
+	if (iob->channel == &card->write)
 		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->dev->dev_port) | 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_irq(get_ccwdev_lock(channel->ccwdev));
-	rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw,
-				      (addr_t) iob, 0, 0, QETH_TIMEOUT);
-	spin_unlock_irq(get_ccwdev_lock(channel->ccwdev));
-
-	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);
-		qeth_release_buffer(channel, iob);
-		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, "IDX activate timed out on channel %x\n",
-				 CCW_DEVID(channel->ccwdev));
-		QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
-		return -ETIME;
-	}
-	return qeth_idx_activate_get_answer(card, channel, reply_cb);
 }
 
 static int qeth_peer_func_level(int level)
@@ -1897,112 +1772,21 @@ static int qeth_peer_func_level(int level)
 	return level;
 }
 
-static void qeth_idx_write_cb(struct qeth_card *card,
-			      struct qeth_channel *channel,
-			      struct qeth_cmd_buffer *iob)
-{
-	__u16 temp;
-
-	QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
-
-	if (channel->state == CH_STATE_DOWN) {
-		channel->state = CH_STATE_ACTIVATING;
-		goto out;
-	}
-
-	if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
-		if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL)
-			dev_err(&channel->ccwdev->dev,
-				"The adapter is used exclusively by another "
-				"host\n");
-		else
-			QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: negative reply\n",
-					 CCW_DEVID(channel->ccwdev));
-		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, "IDX_ACTIVATE on channel %x: function level mismatch (sent: %#x, received: %#x)\n",
-				 CCW_DEVID(channel->ccwdev),
-				 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_card *card,
-			     struct qeth_channel *channel,
-			     struct qeth_cmd_buffer *iob)
-{
-	__u16 temp;
-
-	QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
-	if (channel->state == CH_STATE_DOWN) {
-		channel->state = CH_STATE_ACTIVATING;
-		goto out;
-	}
-
-	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(&channel->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(&channel->ccwdev->dev,
-				"Setting the device online failed because of "
-				"insufficient authorization\n");
-			break;
-		default:
-			QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: negative reply\n",
-					 CCW_DEVID(channel->ccwdev));
-		}
-		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, "IDX_ACTIVATE on channel %x: function level mismatch (sent: %#x, received: %#x)\n",
-				 CCW_DEVID(channel->ccwdev),
-				 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)
+static void qeth_mpc_finalize_cmd(struct qeth_card *card,
+				  struct qeth_cmd_buffer *iob,
+				  unsigned int length)
 {
-	qeth_setup_ccw(iob->channel->ccw, CCW_CMD_WRITE, len, iob->data);
-	iob->callback = qeth_release_buffer_cb;
+	qeth_idx_finalize_cmd(card, iob, length);
 
-	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, min(len, QETH_DBF_CTRL_LEN));
+
+	iob->reply->seqno = QETH_IDX_COMMAND_SEQNO;
+	iob->callback = qeth_release_buffer_cb;
 }
-EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
 
 /**
  * qeth_send_control_data() -	send control command to the card
@@ -2035,17 +1819,12 @@ static int qeth_send_control_data(struct qeth_card *card, int len,
 				  void *reply_param)
 {
 	struct qeth_channel *channel = iob->channel;
+	long timeout = iob->timeout;
 	int rc;
 	struct qeth_reply *reply = NULL;
-	unsigned long timeout, event_timeout;
-	struct qeth_ipa_cmd *cmd = NULL;
 
 	QETH_CARD_TEXT(card, 2, "sendctl");
 
-	if (card->read_or_write_problem) {
-		qeth_release_buffer(channel, iob);
-		return -EIO;
-	}
 	reply = qeth_alloc_reply(card);
 	if (!reply) {
 		qeth_release_buffer(channel, iob);
@@ -2058,27 +1837,24 @@ static int qeth_send_control_data(struct qeth_card *card, int len,
 	qeth_get_reply(reply);
 	iob->reply = reply;
 
-	while (atomic_cmpxchg(&channel->irq_pending, 0, 1)) ;
-
-	if (IS_IPA(iob->data)) {
-		cmd = __ipa_cmd(iob);
-		cmd->hdr.seqno = card->seqno.ipa++;
-		reply->seqno = cmd->hdr.seqno;
-		event_timeout = QETH_IPA_TIMEOUT;
-	} else {
-		reply->seqno = QETH_IDX_COMMAND_SEQNO;
-		event_timeout = QETH_TIMEOUT;
+	timeout = wait_event_interruptible_timeout(card->wait_q,
+						   qeth_trylock_channel(channel),
+						   timeout);
+	if (timeout <= 0) {
+		qeth_put_reply(reply);
+		qeth_release_buffer(channel, iob);
+		return (timeout == -ERESTARTSYS) ? -EINTR : -ETIME;
 	}
-	qeth_prepare_control_data(card, len, iob);
 
-	qeth_enqueue_reply(card, reply);
+	iob->finalize(card, iob, len);
+	QETH_DBF_HEX(CTRL, 2, iob->data, min(len, QETH_DBF_CTRL_LEN));
 
-	timeout = jiffies + event_timeout;
+	qeth_enqueue_reply(card, reply);
 
 	QETH_CARD_TEXT(card, 6, "noirqpnd");
 	spin_lock_irq(get_ccwdev_lock(channel->ccwdev));
 	rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw,
-				      (addr_t) iob, 0, 0, event_timeout);
+				      (addr_t) iob, 0, 0, timeout);
 	spin_unlock_irq(get_ccwdev_lock(channel->ccwdev));
 	if (rc) {
 		QETH_DBF_MESSAGE(2, "qeth_send_control_data on device %x: ccw_device_start rc = %i\n",
@@ -2092,30 +1868,211 @@ static int qeth_send_control_data(struct qeth_card *card, int len,
 		return rc;
 	}
 
-	/* we have only one long running ipassist, since we can ensure
-	   process context of this command we can sleep */
-	if (cmd && 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();
-		}
-	}
+	timeout = wait_for_completion_interruptible_timeout(&reply->received,
+							    timeout);
+	if (timeout <= 0)
+		rc = (timeout == -ERESTARTSYS) ? -EINTR : -ETIME;
 
 	qeth_dequeue_reply(card, reply);
-	rc = reply->rc;
+	if (!rc)
+		rc = reply->rc;
 	qeth_put_reply(reply);
 	return rc;
+}
 
-time_err:
-	qeth_dequeue_reply(card, reply);
-	qeth_put_reply(reply);
-	return -ETIME;
+static int qeth_idx_check_activate_response(struct qeth_card *card,
+					    struct qeth_channel *channel,
+					    struct qeth_cmd_buffer *iob)
+{
+	int rc;
+
+	rc = qeth_check_idx_response(card, iob->data);
+	if (rc)
+		return rc;
+
+	if (QETH_IS_IDX_ACT_POS_REPLY(iob->data))
+		return 0;
+
+	/* negative reply: */
+	QETH_DBF_TEXT_(SETUP, 2, "idxneg%c",
+		       QETH_IDX_ACT_CAUSE_CODE(iob->data));
+
+	switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) {
+	case QETH_IDX_ACT_ERR_EXCL:
+		dev_err(&channel->ccwdev->dev,
+			"The adapter is used exclusively by another host\n");
+		return -EBUSY;
+	case QETH_IDX_ACT_ERR_AUTH:
+	case QETH_IDX_ACT_ERR_AUTH_USER:
+		dev_err(&channel->ccwdev->dev,
+			"Setting the device online failed because of insufficient authorization\n");
+		return -EPERM;
+	default:
+		QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: negative reply\n",
+				 CCW_DEVID(channel->ccwdev));
+		return -EIO;
+	}
+}
+
+static void qeth_idx_query_read_cb(struct qeth_card *card,
+				   struct qeth_channel *channel,
+				   struct qeth_cmd_buffer *iob)
+{
+	u16 peer_level;
+	int rc;
+
+	QETH_DBF_TEXT(SETUP, 2, "idxrdcb");
+
+	rc = qeth_idx_check_activate_response(card, channel, iob);
+	if (rc)
+		goto out;
+
+	memcpy(&peer_level, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
+	if (peer_level != qeth_peer_func_level(card->info.func_level)) {
+		QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: function level mismatch (sent: %#x, received: %#x)\n",
+				 CCW_DEVID(channel->ccwdev),
+				 card->info.func_level, peer_level);
+		rc = -EINVAL;
+		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);
+
+out:
+	qeth_notify_reply(iob->reply, rc);
+	qeth_release_buffer(channel, iob);
+}
+
+static void qeth_idx_query_write_cb(struct qeth_card *card,
+				    struct qeth_channel *channel,
+				    struct qeth_cmd_buffer *iob)
+{
+	u16 peer_level;
+	int rc;
+
+	QETH_DBF_TEXT(SETUP, 2, "idxwrcb");
+
+	rc = qeth_idx_check_activate_response(card, channel, iob);
+	if (rc)
+		goto out;
+
+	memcpy(&peer_level, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
+	if ((peer_level & ~0x0100) !=
+	    qeth_peer_func_level(card->info.func_level)) {
+		QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: function level mismatch (sent: %#x, received: %#x)\n",
+				 CCW_DEVID(channel->ccwdev),
+				 card->info.func_level, peer_level);
+		rc = -EINVAL;
+	}
+
+out:
+	qeth_notify_reply(iob->reply, rc);
+	qeth_release_buffer(channel, iob);
+}
+
+static void qeth_idx_finalize_query_cmd(struct qeth_card *card,
+					struct qeth_cmd_buffer *iob,
+					unsigned int length)
+{
+	qeth_setup_ccw(iob->channel->ccw, CCW_CMD_READ, length, iob->data);
+}
+
+static void qeth_idx_activate_cb(struct qeth_card *card,
+				 struct qeth_channel *channel,
+				 struct qeth_cmd_buffer *iob)
+{
+	qeth_notify_reply(iob->reply, 0);
+	qeth_release_buffer(channel, iob);
+}
+
+static void qeth_idx_setup_activate_cmd(struct qeth_card *card,
+					struct qeth_cmd_buffer *iob)
+{
+	u16 addr = (card->info.cula << 8) + card->info.unit_addr2;
+	u8 port = ((u8)card->dev->dev_port) | 0x80;
+	struct ccw_dev_id dev_id;
+
+	ccw_device_get_id(CARD_DDEV(card), &dev_id);
+	iob->finalize = qeth_idx_finalize_cmd;
+	iob->callback = qeth_idx_activate_cb;
+
+	memcpy(QETH_IDX_ACT_PNO(iob->data), &port, 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, 2);
+	memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &dev_id.devno, 2);
+	memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &addr, 2);
+}
+
+static int qeth_idx_activate_read_channel(struct qeth_card *card)
+{
+	struct qeth_channel *channel = &card->read;
+	struct qeth_cmd_buffer *iob;
+	int rc;
+
+	QETH_DBF_TEXT(SETUP, 2, "idxread");
+
+	iob = qeth_get_buffer(channel);
+	if (!iob)
+		return -ENOMEM;
+
+	memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
+	qeth_idx_setup_activate_cmd(card, iob);
+
+	rc = qeth_send_control_data(card, IDX_ACTIVATE_SIZE, iob, NULL, NULL);
+	if (rc)
+		return rc;
+
+	iob = qeth_get_buffer(channel);
+	if (!iob)
+		return -ENOMEM;
+
+	iob->finalize = qeth_idx_finalize_query_cmd;
+	iob->callback = qeth_idx_query_read_cb;
+	rc = qeth_send_control_data(card, QETH_BUFSIZE, iob, NULL, NULL);
+	if (rc)
+		return rc;
+
+	channel->state = CH_STATE_UP;
+	return 0;
+}
+
+static int qeth_idx_activate_write_channel(struct qeth_card *card)
+{
+	struct qeth_channel *channel = &card->write;
+	struct qeth_cmd_buffer *iob;
+	int rc;
+
+	QETH_DBF_TEXT(SETUP, 2, "idxwrite");
+
+	iob = qeth_get_buffer(channel);
+	if (!iob)
+		return -ENOMEM;
+
+	memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
+	qeth_idx_setup_activate_cmd(card, iob);
+
+	rc = qeth_send_control_data(card, IDX_ACTIVATE_SIZE, iob, NULL, NULL);
+	if (rc)
+		return rc;
+
+	iob = qeth_get_buffer(channel);
+	if (!iob)
+		return -ENOMEM;
+
+	iob->finalize = qeth_idx_finalize_query_cmd;
+	iob->callback = qeth_idx_query_write_cb;
+	rc = qeth_send_control_data(card, QETH_BUFSIZE, iob, NULL, NULL);
+	if (rc)
+		return rc;
+
+	channel->state = CH_STATE_UP;
+	return 0;
 }
 
 static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
@@ -2140,7 +2097,9 @@ static int qeth_cm_enable(struct qeth_card *card)
 	QETH_DBF_TEXT(SETUP, 2, "cmenable");
 
 	iob = qeth_wait_for_buffer(&card->write);
+	iob->finalize = qeth_mpc_finalize_cmd;
 	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),
@@ -2173,7 +2132,9 @@ static int qeth_cm_setup(struct qeth_card *card)
 	QETH_DBF_TEXT(SETUP, 2, "cmsetup");
 
 	iob = qeth_wait_for_buffer(&card->write);
+	iob->finalize = qeth_mpc_finalize_cmd;
 	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),
@@ -2206,7 +2167,7 @@ static int qeth_update_max_mtu(struct qeth_card *card, unsigned int max_mtu)
 		/* adjust RX buffer size to new max MTU: */
 		card->qdio.in_buf_size = max_mtu + 2 * PAGE_SIZE;
 		if (dev->max_mtu && dev->max_mtu != max_mtu)
-			qeth_free_qdio_buffers(card);
+			qeth_free_qdio_queues(card);
 	} else {
 		if (dev->mtu)
 			new_mtu = dev->mtu;
@@ -2253,7 +2214,7 @@ static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
 	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) {
+	if (IS_IQD(card)) {
 		memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
 		mtu = qeth_get_mtu_outof_framesize(framesize);
 	} else {
@@ -2290,6 +2251,7 @@ static int qeth_ulp_enable(struct qeth_card *card)
 	QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
 
 	iob = qeth_wait_for_buffer(&card->write);
+	iob->finalize = qeth_mpc_finalize_cmd;
 	memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
 
 	*(QETH_ULP_ENABLE_LINKNUM(iob->data)) = (u8) card->dev->dev_port;
@@ -2336,6 +2298,7 @@ static int qeth_ulp_setup(struct qeth_card *card)
 	QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
 
 	iob = qeth_wait_for_buffer(&card->write);
+	iob->finalize = qeth_mpc_finalize_cmd;
 	memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
 
 	memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
@@ -2377,12 +2340,12 @@ static void qeth_free_output_queue(struct qeth_qdio_out_q *q)
 	if (!q)
 		return;
 
-	qeth_clear_outq_buffers(q, 1);
+	qeth_drain_output_queue(q, true);
 	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)
+static struct qeth_qdio_out_q *qeth_alloc_output_queue(void)
 {
 	struct qeth_qdio_out_q *q = kzalloc(sizeof(*q), GFP_KERNEL);
 
@@ -2396,7 +2359,7 @@ static struct qeth_qdio_out_q *qeth_alloc_qdio_out_buf(void)
 	return q;
 }
 
-static int qeth_alloc_qdio_buffers(struct qeth_card *card)
+static int qeth_alloc_qdio_queues(struct qeth_card *card)
 {
 	int i, j;
 
@@ -2417,11 +2380,12 @@ static int qeth_alloc_qdio_buffers(struct qeth_card *card)
 
 	/* outbound */
 	for (i = 0; i < card->qdio.no_out_queues; ++i) {
-		card->qdio.out_qs[i] = qeth_alloc_qdio_out_buf();
+		card->qdio.out_qs[i] = qeth_alloc_output_queue();
 		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]->card = card;
 		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) {
@@ -2458,7 +2422,7 @@ out_nomem:
 	return -ENOMEM;
 }
 
-static void qeth_free_qdio_buffers(struct qeth_card *card)
+static void qeth_free_qdio_queues(struct qeth_card *card)
 {
 	int i, j;
 
@@ -2523,6 +2487,7 @@ static int qeth_dm_act(struct qeth_card *card)
 	QETH_DBF_TEXT(SETUP, 2, "dmact");
 
 	iob = qeth_wait_for_buffer(&card->write);
+	iob->finalize = qeth_mpc_finalize_cmd;
 	memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
 
 	memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
@@ -2564,7 +2529,7 @@ static int qeth_mpc_initialize(struct qeth_card *card)
 		QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
 		goto out_qdio;
 	}
-	rc = qeth_alloc_qdio_buffers(card);
+	rc = qeth_alloc_qdio_queues(card);
 	if (rc) {
 		QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
 		goto out_qdio;
@@ -2572,7 +2537,7 @@ static int qeth_mpc_initialize(struct qeth_card *card)
 	rc = qeth_qdio_establish(card);
 	if (rc) {
 		QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
-		qeth_free_qdio_buffers(card);
+		qeth_free_qdio_queues(card);
 		goto out_qdio;
 	}
 	rc = qeth_qdio_activate(card);
@@ -2588,7 +2553,7 @@ static int qeth_mpc_initialize(struct qeth_card *card)
 
 	return 0;
 out_qdio:
-	qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
+	qeth_qdio_clear_card(card, !IS_IQD(card));
 	qdio_free(CARD_DDEV(card));
 	return rc;
 }
@@ -2611,8 +2576,7 @@ void qeth_print_status_message(struct qeth_card *card)
 		}
 		/* fallthrough */
 	case QETH_CARD_TYPE_IQD:
-		if ((card->info.guestlan) ||
-		    (card->info.mcl_level[0] & 0x80)) {
+		if (IS_VM_NIC(card) || (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)
@@ -2733,7 +2697,7 @@ static int qeth_init_input_buffer(struct qeth_card *card,
 
 int qeth_init_qdio_queues(struct qeth_card *card)
 {
-	int i, j;
+	unsigned int i;
 	int rc;
 
 	QETH_DBF_TEXT(SETUP, 2, "initqdqs");
@@ -2762,19 +2726,15 @@ int qeth_init_qdio_queues(struct qeth_card *card)
 
 	/* 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]);
-		}
-		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);
+		struct qeth_qdio_out_q *queue = card->qdio.out_qs[i];
+
+		qdio_reset_buffers(queue->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q);
+		queue->max_elements = QETH_MAX_BUFFER_ELEMENTS(card);
+		queue->next_buf_to_fill = 0;
+		queue->do_pack = 0;
+		atomic_set(&queue->used_buffers, 0);
+		atomic_set(&queue->set_pci_flags_count, 0);
+		atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
 	}
 	return 0;
 }
@@ -2805,12 +2765,26 @@ static void qeth_fill_ipacmd_header(struct qeth_card *card,
 	cmd->hdr.prot_version = prot;
 }
 
+static void qeth_ipa_finalize_cmd(struct qeth_card *card,
+				  struct qeth_cmd_buffer *iob,
+				  unsigned int length)
+{
+	qeth_mpc_finalize_cmd(card, iob, length);
+
+	/* override with IPA-specific values: */
+	__ipa_cmd(iob)->hdr.seqno = card->seqno.ipa;
+	iob->reply->seqno = card->seqno.ipa++;
+}
+
 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
 			  u16 cmd_length)
 {
 	u16 total_length = IPA_PDU_HEADER_SIZE + cmd_length;
 	u8 prot_type = qeth_mpc_select_prot_type(card);
 
+	iob->finalize = qeth_ipa_finalize_cmd;
+	iob->timeout = QETH_IPA_TIMEOUT;
+
 	memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
 	memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &total_length, 2);
 	memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
@@ -2866,6 +2840,11 @@ int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
 
 	QETH_CARD_TEXT(card, 4, "sendipa");
 
+	if (card->read_or_write_problem) {
+		qeth_release_buffer(iob->channel, iob);
+		return -EIO;
+	}
+
 	if (reply_cb == NULL)
 		reply_cb = qeth_send_ipa_cmd_cb;
 	memcpy(&length, QETH_IPA_PDU_LEN_TOTAL(iob->data), 2);
@@ -3251,7 +3230,7 @@ static void qeth_handle_send_error(struct qeth_card *card,
 	int sbalf15 = buffer->buffer->element[15].sflags;
 
 	QETH_CARD_TEXT(card, 6, "hdsnderr");
-	if (card->info.type == QETH_CARD_TYPE_IQD) {
+	if (IS_IQD(card)) {
 		if (sbalf15 == 0) {
 			qdio_err = 0;
 		} else {
@@ -3348,7 +3327,7 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
 		if (queue->bufstates)
 			queue->bufstates[bidx].user = buf;
 
-		if (queue->card->info.type == QETH_CARD_TYPE_IQD)
+		if (IS_IQD(queue->card))
 			continue;
 
 		if (!queue->do_pack) {
@@ -3378,11 +3357,9 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
 	}
 
 	QETH_TXQ_STAT_ADD(queue, bufs, count);
-	netif_trans_update(queue->card->dev);
 	qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
 	if (atomic_read(&queue->set_pci_flags_count))
 		qdio_flags |= QDIO_FLAG_PCI_OUT;
-	atomic_add(count, &queue->used_buffers);
 	rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
 		     queue->queue_no, index, count);
 	if (rc) {
@@ -3422,7 +3399,6 @@ static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
 			 * 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 */
@@ -3467,7 +3443,7 @@ int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq)
 			goto out;
 		}
 
-		qeth_free_qdio_buffers(card);
+		qeth_free_qdio_queues(card);
 		card->options.cq = cq;
 		rc = 0;
 	}
@@ -3493,7 +3469,7 @@ static void qeth_qdio_cq_handler(struct qeth_card *card, unsigned int qdio_err,
 	QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err);
 
 	if (qdio_err) {
-		netif_stop_queue(card->dev);
+		netif_tx_stop_all_queues(card->dev);
 		qeth_schedule_recovery(card);
 		return;
 	}
@@ -3549,12 +3525,14 @@ static void qeth_qdio_output_handler(struct ccw_device *ccwdev,
 	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;
+	struct net_device *dev = card->dev;
+	struct netdev_queue *txq;
 	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);
+		netif_tx_stop_all_queues(dev);
 		qeth_schedule_recovery(card);
 		return;
 	}
@@ -3580,7 +3558,7 @@ static void qeth_qdio_output_handler(struct ccw_device *ccwdev,
 
 			/* prepare the queue slot for re-use: */
 			qeth_scrub_qdio_buffer(buffer->buffer,
-					       QETH_MAX_BUFFER_ELEMENTS(card));
+					       queue->max_elements);
 			if (qeth_init_qdio_out_buf(queue, bidx)) {
 				QETH_CARD_TEXT(card, 2, "outofbuf");
 				qeth_schedule_recovery(card);
@@ -3600,33 +3578,32 @@ static void qeth_qdio_output_handler(struct ccw_device *ccwdev,
 	}
 	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)
+	if (!IS_IQD(card))
 		qeth_check_outbound_queue(queue);
 
-	netif_wake_queue(queue->card->dev);
-}
-
-/* We cannot use outbound queue 3 for unicast packets on HiperSockets */
-static inline int qeth_cut_iqd_prio(struct qeth_card *card, int queue_num)
-{
-	if ((card->info.type == QETH_CARD_TYPE_IQD) && (queue_num == 3))
-		return 2;
-	return queue_num;
+	if (IS_IQD(card))
+		__queue = qeth_iqd_translate_txq(dev, __queue);
+	txq = netdev_get_tx_queue(dev, __queue);
+	/* xmit may have observed the full-condition, but not yet stopped the
+	 * txq. In which case the code below won't trigger. So before returning,
+	 * xmit will re-check the txq's fill level and wake it up if needed.
+	 */
+	if (netif_tx_queue_stopped(txq) && !qeth_out_queue_is_full(queue))
+		netif_tx_wake_queue(txq);
 }
 
 /**
  * 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 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb)
 {
-	__be16 *tci;
+	struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
 	u8 tos;
 
 	switch (card->qdio.do_prio_queueing) {
 	case QETH_PRIO_Q_ING_TOS:
 	case QETH_PRIO_Q_ING_PREC:
-		switch (ipv) {
+		switch (qeth_get_ip_version(skb)) {
 		case 4:
 			tos = ipv4_get_dsfield(ip_hdr(skb));
 			break;
@@ -3637,9 +3614,9 @@ int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
 			return card->qdio.default_out_queue;
 		}
 		if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_PREC)
-			return qeth_cut_iqd_prio(card, ~tos >> 6 & 3);
+			return ~tos >> 6 & 3;
 		if (tos & IPTOS_MINCOST)
-			return qeth_cut_iqd_prio(card, 3);
+			return 3;
 		if (tos & IPTOS_RELIABILITY)
 			return 2;
 		if (tos & IPTOS_THROUGHPUT)
@@ -3650,12 +3627,11 @@ int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
 	case QETH_PRIO_Q_ING_SKB:
 		if (skb->priority > 5)
 			return 0;
-		return qeth_cut_iqd_prio(card, ~skb->priority >> 1 & 3);
+		return ~skb->priority >> 1 & 3;
 	case QETH_PRIO_Q_ING_VLAN:
-		tci = &((struct ethhdr *)skb->data)->h_proto;
-		if (be16_to_cpu(*tci) == ETH_P_8021Q)
-			return qeth_cut_iqd_prio(card,
-			~be16_to_cpu(*(tci + 1)) >> (VLAN_PRIO_SHIFT + 1) & 3);
+		if (veth->h_vlan_proto == htons(ETH_P_8021Q))
+			return ~ntohs(veth->h_vlan_TCI) >>
+			       (VLAN_PRIO_SHIFT + 1) & 3;
 		break;
 	default:
 		break;
@@ -3729,8 +3705,8 @@ static int qeth_add_hw_header(struct qeth_qdio_out_q *queue,
 			      unsigned int hdr_len, unsigned int proto_len,
 			      unsigned int *elements)
 {
-	const unsigned int max_elements = QETH_MAX_BUFFER_ELEMENTS(queue->card);
 	const unsigned int contiguous = proto_len ? proto_len : 1;
+	const unsigned int max_elements = queue->max_elements;
 	unsigned int __elements;
 	addr_t start, end;
 	bool push_ok;
@@ -3867,11 +3843,13 @@ static void __qeth_fill_buffer(struct sk_buff *skb,
  *		from qeth_core_header_cache.
  * @offset:	when mapping the skb, start at skb->data + offset
  * @hd_len:	if > 0, build a dedicated header element of this size
+ * flush:	Prepare the buffer to be flushed, regardless of its fill level.
  */
 static int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
 			    struct qeth_qdio_out_buffer *buf,
 			    struct sk_buff *skb, struct qeth_hdr *hdr,
-			    unsigned int offset, unsigned int hd_len)
+			    unsigned int offset, unsigned int hd_len,
+			    bool flush)
 {
 	struct qdio_buffer *buffer = buf->buffer;
 	bool is_first_elem = true;
@@ -3900,8 +3878,8 @@ static int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
 
 		QETH_TXQ_STAT_INC(queue, skbs_pack);
 		/* If the buffer still has free elements, keep using it. */
-		if (buf->next_element_to_fill <
-		    QETH_MAX_BUFFER_ELEMENTS(queue->card))
+		if (!flush &&
+		    buf->next_element_to_fill < queue->max_elements)
 			return 0;
 	}
 
@@ -3918,15 +3896,31 @@ static int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue,
 {
 	int index = queue->next_buf_to_fill;
 	struct qeth_qdio_out_buffer *buffer = queue->bufs[index];
+	struct netdev_queue *txq;
+	bool stopped = false;
 
-	/*
-	 * check if buffer is empty to make sure that we do not 'overtake'
-	 * ourselves and try to fill a buffer that is already primed
+	/* Just a sanity check, the wake/stop logic should ensure that we always
+	 * get a free buffer.
 	 */
 	if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
 		return -EBUSY;
-	qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
+
+	txq = netdev_get_tx_queue(queue->card->dev, skb_get_queue_mapping(skb));
+
+	if (atomic_inc_return(&queue->used_buffers) >= QDIO_MAX_BUFFERS_PER_Q) {
+		/* If a TX completion happens right _here_ and misses to wake
+		 * the txq, then our re-check below will catch the race.
+		 */
+		QETH_TXQ_STAT_INC(queue, stopped);
+		netif_tx_stop_queue(txq);
+		stopped = true;
+	}
+
+	qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len, stopped);
 	qeth_flush_buffers(queue, index, 1);
+
+	if (stopped && !qeth_out_queue_is_full(queue))
+		netif_tx_start_queue(txq);
 	return 0;
 }
 
@@ -3936,6 +3930,8 @@ int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
 			int elements_needed)
 {
 	struct qeth_qdio_out_buffer *buffer;
+	struct netdev_queue *txq;
+	bool stopped = false;
 	int start_index;
 	int flush_count = 0;
 	int do_pack = 0;
@@ -3947,21 +3943,24 @@ int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
 			      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
+
+	/* Just a sanity check, the wake/stop logic should ensure that we always
+	 * get a free buffer.
 	 */
 	if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
 		atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
 		return -EBUSY;
 	}
+
+	txq = netdev_get_tx_queue(card->dev, skb_get_queue_mapping(skb));
+
 	/* 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) {
+		if (buffer->next_element_to_fill + elements_needed >
+		    queue->max_elements) {
 			/* ... no -> set state PRIMED */
 			atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
 			flush_count++;
@@ -3969,8 +3968,8 @@ int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
 				(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 */
+
+			/* We stepped forward, so sanity-check again: */
 			if (atomic_read(&buffer->state) !=
 			    QETH_QDIO_BUF_EMPTY) {
 				qeth_flush_buffers(queue, start_index,
@@ -3983,8 +3982,18 @@ int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
 		}
 	}
 
-	flush_count += qeth_fill_buffer(queue, buffer, skb, hdr, offset,
-					hd_len);
+	if (buffer->next_element_to_fill == 0 &&
+	    atomic_inc_return(&queue->used_buffers) >= QDIO_MAX_BUFFERS_PER_Q) {
+		/* If a TX completion happens right _here_ and misses to wake
+		 * the txq, then our re-check below will catch the race.
+		 */
+		QETH_TXQ_STAT_INC(queue, stopped);
+		netif_tx_stop_queue(txq);
+		stopped = true;
+	}
+
+	flush_count += qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len,
+					stopped);
 	if (flush_count)
 		qeth_flush_buffers(queue, start_index, flush_count);
 	else if (!atomic_read(&queue->set_pci_flags_count))
@@ -4015,6 +4024,8 @@ out:
 	if (do_pack)
 		QETH_TXQ_STAT_ADD(queue, bufs_pack, flush_count);
 
+	if (stopped && !qeth_out_queue_is_full(queue))
+		netif_tx_start_queue(txq);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(qeth_do_send_packet);
@@ -4101,9 +4112,6 @@ int qeth_xmit(struct qeth_card *card, struct sk_buff *skb,
 	} else {
 		if (!push_len)
 			kmem_cache_free(qeth_core_header_cache, hdr);
-		if (rc == -EBUSY)
-			/* roll back to ETH header */
-			skb_pull(skb, push_len);
 	}
 	return rc;
 }
@@ -4321,9 +4329,8 @@ int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback)
 
 	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)) {
+	if ((IS_OSD(card) || IS_OSX(card)) &&
+	    qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) {
 		rc = qeth_setadpparms_set_access_ctrl(card,
 			card->options.isolation, fallback);
 		if (rc) {
@@ -4348,7 +4355,6 @@ void qeth_tx_timeout(struct net_device *dev)
 
 	card = dev->ml_priv;
 	QETH_CARD_TEXT(card, 4, "txtimeo");
-	QETH_CARD_STAT_INC(card, tx_errors);
 	qeth_schedule_recovery(card);
 }
 EXPORT_SYMBOL_GPL(qeth_tx_timeout);
@@ -4489,7 +4495,7 @@ static int qeth_snmp_command(struct qeth_card *card, char __user *udata)
 
 	QETH_CARD_TEXT(card, 3, "snmpcmd");
 
-	if (card->info.guestlan)
+	if (IS_VM_NIC(card))
 		return -EOPNOTSUPP;
 
 	if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
@@ -4732,14 +4738,6 @@ out:
 }
 EXPORT_SYMBOL_GPL(qeth_vm_request_mac);
 
-static int qeth_get_qdio_q_format(struct qeth_card *card)
-{
-	if (card->info.type == QETH_CARD_TYPE_IQD)
-		return QDIO_IQDIO_QFMT;
-	else
-		return QDIO_QETH_QFMT;
-}
-
 static void qeth_determine_capabilities(struct qeth_card *card)
 {
 	int rc;
@@ -4878,7 +4876,8 @@ static int qeth_qdio_establish(struct qeth_card *card)
 
 	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.q_format		 = IS_IQD(card) ? QDIO_IQDIO_QFMT :
+							  QDIO_QETH_QFMT;
 	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;
@@ -4890,8 +4889,7 @@ static int qeth_qdio_establish(struct qeth_card *card)
 	init_data.input_sbal_addr_array  = in_sbal_ptrs;
 	init_data.output_sbal_addr_array = 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;
+	init_data.scan_threshold	 = IS_IQD(card) ? 1 : 32;
 
 	if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
 		QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
@@ -4937,7 +4935,7 @@ static void qeth_core_free_card(struct qeth_card *card)
 	qeth_clean_channel(&card->write);
 	qeth_clean_channel(&card->data);
 	destroy_workqueue(card->event_wq);
-	qeth_free_qdio_buffers(card);
+	qeth_free_qdio_queues(card);
 	unregister_service_level(&card->qeth_service_level);
 	dev_set_drvdata(&card->gdev->dev, NULL);
 	kfree(card);
@@ -4986,12 +4984,14 @@ int qeth_core_hardsetup_card(struct qeth_card *card, bool *carrier_ok)
 
 	QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
 	atomic_set(&card->force_alloc_skb, 0);
-	qeth_update_from_chp_desc(card);
+	rc = qeth_update_from_chp_desc(card);
+	if (rc)
+		return rc;
 retry:
 	if (retries < 3)
 		QETH_DBF_MESSAGE(2, "Retrying to do IDX activates on device %x.\n",
 				 CARD_DEVID(card));
-	rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
+	rc = qeth_qdio_clear_card(card, !IS_IQD(card));
 	ccw_device_set_offline(CARD_DDEV(card));
 	ccw_device_set_offline(CARD_WDEV(card));
 	ccw_device_set_offline(CARD_RDEV(card));
@@ -5019,8 +5019,9 @@ retriable:
 	qeth_determine_capabilities(card);
 	qeth_init_tokens(card);
 	qeth_init_func_level(card);
-	rc = qeth_idx_activate_channel(card, &card->read, qeth_idx_read_cb);
-	if (rc == -ERESTARTSYS) {
+
+	rc = qeth_idx_activate_read_channel(card);
+	if (rc == -EINTR) {
 		QETH_DBF_TEXT(SETUP, 2, "break2");
 		return rc;
 	} else if (rc) {
@@ -5030,8 +5031,9 @@ retriable:
 		else
 			goto retry;
 	}
-	rc = qeth_idx_activate_channel(card, &card->write, qeth_idx_write_cb);
-	if (rc == -ERESTARTSYS) {
+
+	rc = qeth_idx_activate_write_channel(card);
+	if (rc == -EINTR) {
 		QETH_DBF_TEXT(SETUP, 2, "break3");
 		return rc;
 	} else if (rc) {
@@ -5171,7 +5173,7 @@ struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
 		return NULL;
 
 	if (((skb_len >= card->options.rx_sg_cb) &&
-	     (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
+	     !IS_OSN(card) &&
 	     (!atomic_read(&card->force_alloc_skb))) ||
 	    (card->options.cq == QETH_CQ_ENABLED))
 		use_rx_sg = 1;
@@ -5562,13 +5564,17 @@ static struct net_device *qeth_alloc_netdev(struct qeth_card *card)
 
 	switch (card->info.type) {
 	case QETH_CARD_TYPE_IQD:
-		dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN, ether_setup);
+		dev = alloc_netdev_mqs(0, "hsi%d", NET_NAME_UNKNOWN,
+				       ether_setup, QETH_MAX_QUEUES, 1);
+		break;
+	case QETH_CARD_TYPE_OSM:
+		dev = alloc_etherdev(0);
 		break;
 	case QETH_CARD_TYPE_OSN:
 		dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN, ether_setup);
 		break;
 	default:
-		dev = alloc_etherdev(0);
+		dev = alloc_etherdev_mqs(0, QETH_MAX_QUEUES, 1);
 	}
 
 	if (!dev)
@@ -5590,8 +5596,10 @@ static struct net_device *qeth_alloc_netdev(struct qeth_card *card)
 		dev->priv_flags &= ~IFF_TX_SKB_SHARING;
 		dev->hw_features |= NETIF_F_SG;
 		dev->vlan_features |= NETIF_F_SG;
-		if (IS_IQD(card))
+		if (IS_IQD(card)) {
+			netif_set_real_num_tx_queues(dev, QETH_IQD_MIN_TXQ);
 			dev->features |= NETIF_F_SG;
+		}
 	}
 
 	return dev;
@@ -5641,14 +5649,16 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev)
 	}
 
 	qeth_setup_card(card);
-	qeth_update_from_chp_desc(card);
-
 	card->dev = qeth_alloc_netdev(card);
 	if (!card->dev) {
 		rc = -ENOMEM;
 		goto err_card;
 	}
 
+	card->qdio.no_out_queues = card->dev->num_tx_queues;
+	rc = qeth_update_from_chp_desc(card);
+	if (rc)
+		goto err_chp_desc;
 	qeth_determine_capabilities(card);
 	enforced_disc = qeth_enforce_discipline(card);
 	switch (enforced_disc) {
@@ -5661,9 +5671,8 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev)
 		if (rc)
 			goto err_load;
 
-		gdev->dev.type = (card->info.type != QETH_CARD_TYPE_OSN)
-					? card->discipline->devtype
-					: &qeth_osn_devtype;
+		gdev->dev.type = IS_OSN(card) ? &qeth_osn_devtype :
+						card->discipline->devtype;
 		rc = card->discipline->setup(card->gdev);
 		if (rc)
 			goto err_disc;
@@ -5675,6 +5684,7 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev)
 err_disc:
 	qeth_core_free_discipline(card);
 err_load:
+err_chp_desc:
 	free_netdev(card->dev);
 err_card:
 	qeth_core_free_card(card);
@@ -5706,10 +5716,8 @@ static int qeth_core_set_online(struct ccwgroup_device *gdev)
 	enum qeth_discipline_id def_discipline;
 
 	if (!card->discipline) {
-		if (card->info.type == QETH_CARD_TYPE_IQD)
-			def_discipline = QETH_DISCIPLINE_LAYER3;
-		else
-			def_discipline = QETH_DISCIPLINE_LAYER2;
+		def_discipline = IS_IQD(card) ? QETH_DISCIPLINE_LAYER3 :
+						QETH_DISCIPLINE_LAYER2;
 		rc = qeth_core_load_discipline(card, def_discipline);
 		if (rc)
 			goto err;
@@ -5737,7 +5745,7 @@ static void qeth_core_shutdown(struct ccwgroup_device *gdev)
 	if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
 		qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
 	qeth_qdio_clear_card(card, 0);
-	qeth_clear_qdio_buffers(card);
+	qeth_drain_output_queues(card);
 	qdio_free(CARD_DDEV(card));
 }
 
@@ -5837,13 +5845,10 @@ int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 		rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
 		break;
 	case SIOC_QETH_GET_CARD_TYPE:
-		if ((card->info.type == QETH_CARD_TYPE_OSD ||
-		     card->info.type == QETH_CARD_TYPE_OSM ||
-		     card->info.type == QETH_CARD_TYPE_OSX) &&
-		    !card->info.guestlan)
+		if ((IS_OSD(card) || IS_OSM(card) || IS_OSX(card)) &&
+		    !IS_VM_NIC(card))
 			return 1;
-		else
-			return 0;
+		return 0;
 	case SIOCGMIIPHY:
 		mii_data = if_mii(rq);
 		mii_data->phy_id = 0;
@@ -6193,7 +6198,6 @@ void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
 	stats->rx_errors = card->stats.rx_errors;
 	stats->rx_dropped = card->stats.rx_dropped;
 	stats->multicast = card->stats.rx_multicast;
-	stats->tx_errors = card->stats.tx_errors;
 
 	for (i = 0; i < card->qdio.no_out_queues; i++) {
 		queue = card->qdio.out_qs[i];
@@ -6206,6 +6210,15 @@ void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
 }
 EXPORT_SYMBOL_GPL(qeth_get_stats64);
 
+u16 qeth_iqd_select_queue(struct net_device *dev, struct sk_buff *skb,
+			  u8 cast_type, struct net_device *sb_dev)
+{
+	if (cast_type != RTN_UNICAST)
+		return QETH_IQD_MCAST_TXQ;
+	return QETH_IQD_MIN_UCAST_TXQ;
+}
+EXPORT_SYMBOL_GPL(qeth_iqd_select_queue);
+
 int qeth_open(struct net_device *dev)
 {
 	struct qeth_card *card = dev->ml_priv;
@@ -6216,7 +6229,7 @@ int qeth_open(struct net_device *dev)
 		return -EIO;
 
 	card->data.state = CH_STATE_UP;
-	netif_start_queue(dev);
+	netif_tx_start_all_queues(dev);
 
 	napi_enable(&card->napi);
 	local_bh_disable();