Merge tag 'v5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into mlx5-next

Linux 5.1-rc1

We forgot to reset the branch last merge window thus mlx5-next is outdated
and still based on 5.0-rc2. This merge commit is needed to sync mlx5-next
branch with 5.1-rc1.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

1 files changed, 186 insertions, 370 deletions

diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index f108d4b44605..8efb2e8ff8f4 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -25,7 +25,6 @@
 #include "qeth_l2.h"
 
 static int qeth_l2_set_offline(struct ccwgroup_device *);
-static int qeth_l2_stop(struct net_device *);
 static void qeth_bridgeport_query_support(struct qeth_card *card);
 static void qeth_bridge_state_change(struct qeth_card *card,
 					struct qeth_ipa_cmd *cmd);
@@ -36,7 +35,7 @@ static void qeth_l2_vnicc_init(struct qeth_card *card);
 static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc,
 					  u32 *timeout);
 
-static int qeth_setdelmac_makerc(struct qeth_card *card, int retcode)
+static int qeth_l2_setdelmac_makerc(struct qeth_card *card, u16 retcode)
 {
 	int rc;
 
@@ -63,9 +62,6 @@ static int qeth_setdelmac_makerc(struct qeth_card *card, int retcode)
 	case IPA_RC_L2_MAC_NOT_FOUND:
 		rc = -ENOENT;
 		break;
-	case -ENOMEM:
-		rc = -ENOMEM;
-		break;
 	default:
 		rc = -EIO;
 		break;
@@ -73,6 +69,15 @@ static int qeth_setdelmac_makerc(struct qeth_card *card, int retcode)
 	return rc;
 }
 
+static int qeth_l2_send_setdelmac_cb(struct qeth_card *card,
+				     struct qeth_reply *reply,
+				     unsigned long data)
+{
+	struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
+
+	return qeth_l2_setdelmac_makerc(card, cmd->hdr.return_code);
+}
+
 static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
 			   enum qeth_ipa_cmds ipacmd)
 {
@@ -86,8 +91,7 @@ static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
 	cmd = __ipa_cmd(iob);
 	cmd->data.setdelmac.mac_length = ETH_ALEN;
 	ether_addr_copy(cmd->data.setdelmac.mac, mac);
-	return qeth_setdelmac_makerc(card, qeth_send_ipa_cmd(card, iob,
-					   NULL, NULL));
+	return qeth_send_ipa_cmd(card, iob, qeth_l2_send_setdelmac_cb, NULL);
 }
 
 static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
@@ -98,8 +102,7 @@ static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
 	rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC);
 	if (rc == 0) {
 		dev_info(&card->gdev->dev,
-			 "MAC address %pM successfully registered on device %s\n",
-			 mac, card->dev->name);
+			 "MAC address %pM successfully registered\n", mac);
 	} else {
 		switch (rc) {
 		case -EEXIST:
@@ -171,9 +174,9 @@ static int qeth_l2_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
 	return RTN_UNICAST;
 }
 
-static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
-				struct sk_buff *skb, int ipv, int cast_type,
-				unsigned int data_len)
+static void qeth_l2_fill_header(struct qeth_qdio_out_q *queue,
+				struct qeth_hdr *hdr, struct sk_buff *skb,
+				int ipv, int cast_type, unsigned int data_len)
 {
 	struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
 
@@ -185,8 +188,7 @@ static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
 		hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
 		if (skb->ip_summed == CHECKSUM_PARTIAL) {
 			qeth_tx_csum(skb, &hdr->hdr.l2.flags[1], ipv);
-			if (card->options.performance_stats)
-				card->perf_stats.tx_csum++;
+			QETH_TXQ_STAT_INC(queue, skbs_csum);
 		}
 	}
 
@@ -207,7 +209,7 @@ static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
 	}
 }
 
-static int qeth_setdelvlan_makerc(struct qeth_card *card, int retcode)
+static int qeth_l2_setdelvlan_makerc(struct qeth_card *card, u16 retcode)
 {
 	if (retcode)
 		QETH_CARD_TEXT_(card, 2, "err%04x", retcode);
@@ -223,8 +225,6 @@ static int qeth_setdelvlan_makerc(struct qeth_card *card, int retcode)
 		return -ENOENT;
 	case IPA_RC_L2_VLAN_ID_NOT_ALLOWED:
 		return -EPERM;
-	case -ENOMEM:
-		return -ENOMEM;
 	default:
 		return -EIO;
 	}
@@ -242,9 +242,8 @@ static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card,
 				 cmd->data.setdelvlan.vlan_id,
 				 CARD_DEVID(card), cmd->hdr.return_code);
 		QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command);
-		QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code);
 	}
-	return 0;
+	return qeth_l2_setdelvlan_makerc(card, cmd->hdr.return_code);
 }
 
 static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
@@ -259,101 +258,40 @@ static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
 		return -ENOMEM;
 	cmd = __ipa_cmd(iob);
 	cmd->data.setdelvlan.vlan_id = i;
-	return qeth_setdelvlan_makerc(card, qeth_send_ipa_cmd(card, iob,
-					    qeth_l2_send_setdelvlan_cb, NULL));
-}
-
-static void qeth_l2_process_vlans(struct qeth_card *card)
-{
-	struct qeth_vlan_vid *id;
-
-	QETH_CARD_TEXT(card, 3, "L2prcvln");
-	mutex_lock(&card->vid_list_mutex);
-	list_for_each_entry(id, &card->vid_list, list) {
-		qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN);
-	}
-	mutex_unlock(&card->vid_list_mutex);
+	return qeth_send_ipa_cmd(card, iob, qeth_l2_send_setdelvlan_cb, NULL);
 }
 
 static int qeth_l2_vlan_rx_add_vid(struct net_device *dev,
 				   __be16 proto, u16 vid)
 {
 	struct qeth_card *card = dev->ml_priv;
-	struct qeth_vlan_vid *id;
-	int rc;
 
 	QETH_CARD_TEXT_(card, 4, "aid:%d", vid);
 	if (!vid)
 		return 0;
-	if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
-		QETH_CARD_TEXT(card, 3, "aidREC");
-		return 0;
-	}
-	id = kmalloc(sizeof(*id), GFP_KERNEL);
-	if (id) {
-		id->vid = vid;
-		rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
-		if (rc) {
-			kfree(id);
-			return rc;
-		}
-		mutex_lock(&card->vid_list_mutex);
-		list_add_tail(&id->list, &card->vid_list);
-		mutex_unlock(&card->vid_list_mutex);
-	} else {
-		return -ENOMEM;
-	}
-	return 0;
+
+	return qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
 }
 
 static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev,
 				    __be16 proto, u16 vid)
 {
-	struct qeth_vlan_vid *id, *tmpid = NULL;
 	struct qeth_card *card = dev->ml_priv;
-	int rc = 0;
 
 	QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
-	if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
-		QETH_CARD_TEXT(card, 3, "kidREC");
+	if (!vid)
 		return 0;
-	}
-	mutex_lock(&card->vid_list_mutex);
-	list_for_each_entry(id, &card->vid_list, list) {
-		if (id->vid == vid) {
-			list_del(&id->list);
-			tmpid = id;
-			break;
-		}
-	}
-	mutex_unlock(&card->vid_list_mutex);
-	if (tmpid) {
-		rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
-		kfree(tmpid);
-	}
-	return rc;
+
+	return qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
 }
 
-static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
+static void qeth_l2_stop_card(struct qeth_card *card)
 {
 	QETH_DBF_TEXT(SETUP , 2, "stopcard");
 	QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
 
 	qeth_set_allowed_threads(card, 0, 1);
-	if (card->read.state == CH_STATE_UP &&
-	    card->write.state == CH_STATE_UP &&
-	    (card->state == CARD_STATE_UP)) {
-		if (recovery_mode &&
-		    card->info.type != QETH_CARD_TYPE_OSN) {
-			qeth_l2_stop(card->dev);
-		} else {
-			rtnl_lock();
-			dev_close(card->dev);
-			rtnl_unlock();
-		}
-		card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
-		card->state = CARD_STATE_SOFTSETUP;
-	}
+
 	if (card->state == CARD_STATE_SOFTSETUP) {
 		qeth_l2_del_all_macs(card);
 		qeth_clear_ipacmd_list(card);
@@ -369,6 +307,9 @@ static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
 		qeth_clear_cmd_buffers(&card->read);
 		qeth_clear_cmd_buffers(&card->write);
 	}
+
+	flush_workqueue(card->event_wq);
+	card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
 }
 
 static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
@@ -416,8 +357,8 @@ static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
 		}
 		work_done++;
 		budget--;
-		card->stats.rx_packets++;
-		card->stats.rx_bytes += len;
+		QETH_CARD_STAT_INC(card, rx_packets);
+		QETH_CARD_STAT_ADD(card, rx_bytes, len);
 	}
 	return work_done;
 }
@@ -441,7 +382,7 @@ static int qeth_l2_request_initial_mac(struct qeth_card *card)
 
 	if (!IS_OSN(card)) {
 		rc = qeth_setadpparms_change_macaddr(card);
-		if (!rc && is_valid_ether_addr(card->dev->dev_addr))
+		if (!rc)
 			goto out;
 		QETH_DBF_MESSAGE(2, "READ_MAC Assist failed on device %x: %#x\n",
 				 CARD_DEVID(card), rc);
@@ -460,6 +401,26 @@ out:
 	return 0;
 }
 
+static void qeth_l2_register_dev_addr(struct qeth_card *card)
+{
+	if (!is_valid_ether_addr(card->dev->dev_addr))
+		qeth_l2_request_initial_mac(card);
+
+	if (!IS_OSN(card) && !qeth_l2_send_setmac(card, card->dev->dev_addr))
+		card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
+}
+
+static int qeth_l2_validate_addr(struct net_device *dev)
+{
+	struct qeth_card *card = dev->ml_priv;
+
+	if (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)
+		return eth_validate_addr(dev);
+
+	QETH_CARD_TEXT(card, 4, "nomacadr");
+	return -EPERM;
+}
+
 static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
 {
 	struct sockaddr *addr = p;
@@ -469,9 +430,7 @@ static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
 
 	QETH_CARD_TEXT(card, 3, "setmac");
 
-	if (card->info.type == QETH_CARD_TYPE_OSN ||
-	    card->info.type == QETH_CARD_TYPE_OSM ||
-	    card->info.type == QETH_CARD_TYPE_OSX) {
+	if (IS_OSM(card) || IS_OSX(card)) {
 		QETH_CARD_TEXT(card, 3, "setmcTYP");
 		return -EOPNOTSUPP;
 	}
@@ -479,39 +438,22 @@ static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
 	if (!is_valid_ether_addr(addr->sa_data))
 		return -EADDRNOTAVAIL;
 
-	if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
-		QETH_CARD_TEXT(card, 3, "setmcREC");
-		return -ERESTARTSYS;
-	}
-
-	/* avoid racing against concurrent state change: */
-	if (!mutex_trylock(&card->conf_mutex))
-		return -EAGAIN;
-
-	if (!qeth_card_hw_is_reachable(card)) {
-		ether_addr_copy(dev->dev_addr, addr->sa_data);
-		goto out_unlock;
-	}
-
 	/* don't register the same address twice */
 	if (ether_addr_equal_64bits(dev->dev_addr, addr->sa_data) &&
 	    (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
-		goto out_unlock;
+		return 0;
 
 	/* add the new address, switch over, drop the old */
 	rc = qeth_l2_send_setmac(card, addr->sa_data);
 	if (rc)
-		goto out_unlock;
+		return rc;
 	ether_addr_copy(old_addr, dev->dev_addr);
 	ether_addr_copy(dev->dev_addr, addr->sa_data);
 
 	if (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)
 		qeth_l2_remove_mac(card, old_addr);
 	card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
-
-out_unlock:
-	mutex_unlock(&card->conf_mutex);
-	return rc;
+	return 0;
 }
 
 static void qeth_promisc_to_bridge(struct qeth_card *card)
@@ -582,13 +524,7 @@ static void qeth_l2_set_rx_mode(struct net_device *dev)
 	int i;
 	int rc;
 
-	if (card->info.type == QETH_CARD_TYPE_OSN)
-		return;
-
 	QETH_CARD_TEXT(card, 3, "setmulti");
-	if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
-	    (card->state != CARD_STATE_UP))
-		return;
 
 	spin_lock_bh(&card->mclock);
 
@@ -673,17 +609,8 @@ static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb,
 	int tx_bytes = skb->len;
 	int rc;
 
-	if (card->state != CARD_STATE_UP) {
-		card->stats.tx_carrier_errors++;
-		goto tx_drop;
-	}
-
 	queue = qeth_get_tx_queue(card, skb, ipv, cast_type);
 
-	if (card->options.performance_stats) {
-		card->perf_stats.outbound_cnt++;
-		card->perf_stats.outbound_start_time = qeth_get_micros();
-	}
 	netif_stop_queue(dev);
 
 	if (IS_OSN(card))
@@ -693,81 +620,21 @@ static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb,
 			       qeth_l2_fill_header);
 
 	if (!rc) {
-		card->stats.tx_packets++;
-		card->stats.tx_bytes += tx_bytes;
-		if (card->options.performance_stats)
-			card->perf_stats.outbound_time += qeth_get_micros() -
-				card->perf_stats.outbound_start_time;
+		QETH_TXQ_STAT_INC(queue, tx_packets);
+		QETH_TXQ_STAT_ADD(queue, tx_bytes, tx_bytes);
 		netif_wake_queue(dev);
 		return NETDEV_TX_OK;
 	} else if (rc == -EBUSY) {
 		return NETDEV_TX_BUSY;
 	} /* else fall through */
 
-tx_drop:
-	card->stats.tx_dropped++;
-	card->stats.tx_errors++;
+	QETH_TXQ_STAT_INC(queue, tx_dropped);
+	QETH_TXQ_STAT_INC(queue, tx_errors);
 	dev_kfree_skb_any(skb);
 	netif_wake_queue(dev);
 	return NETDEV_TX_OK;
 }
 
-static int __qeth_l2_open(struct net_device *dev)
-{
-	struct qeth_card *card = dev->ml_priv;
-	int rc = 0;
-
-	QETH_CARD_TEXT(card, 4, "qethopen");
-	if (card->state == CARD_STATE_UP)
-		return rc;
-	if (card->state != CARD_STATE_SOFTSETUP)
-		return -ENODEV;
-
-	if ((card->info.type != QETH_CARD_TYPE_OSN) &&
-	     (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
-		QETH_CARD_TEXT(card, 4, "nomacadr");
-		return -EPERM;
-	}
-	card->data.state = CH_STATE_UP;
-	card->state = CARD_STATE_UP;
-	netif_start_queue(dev);
-
-	if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
-		napi_enable(&card->napi);
-		local_bh_disable();
-		napi_schedule(&card->napi);
-		/* kick-start the NAPI softirq: */
-		local_bh_enable();
-	} else
-		rc = -EIO;
-	return rc;
-}
-
-static int qeth_l2_open(struct net_device *dev)
-{
-	struct qeth_card *card = dev->ml_priv;
-
-	QETH_CARD_TEXT(card, 5, "qethope_");
-	if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
-		QETH_CARD_TEXT(card, 3, "openREC");
-		return -ERESTARTSYS;
-	}
-	return __qeth_l2_open(dev);
-}
-
-static int qeth_l2_stop(struct net_device *dev)
-{
-	struct qeth_card *card = dev->ml_priv;
-
-	QETH_CARD_TEXT(card, 4, "qethstop");
-	netif_tx_disable(dev);
-	if (card->state == CARD_STATE_UP) {
-		card->state = CARD_STATE_SOFTSETUP;
-		napi_disable(&card->napi);
-	}
-	return 0;
-}
-
 static const struct device_type qeth_l2_devtype = {
 	.name = "qeth_layer2",
 	.groups = qeth_l2_attr_groups,
@@ -783,7 +650,7 @@ static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
 		if (rc)
 			return rc;
 	}
-	INIT_LIST_HEAD(&card->vid_list);
+
 	hash_init(card->mac_htable);
 	card->info.hwtrap = 0;
 	qeth_l2_vnicc_set_defaults(card);
@@ -801,33 +668,19 @@ static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
 
 	if (cgdev->state == CCWGROUP_ONLINE)
 		qeth_l2_set_offline(cgdev);
+
+	cancel_work_sync(&card->close_dev_work);
 	if (qeth_netdev_is_registered(card->dev))
 		unregister_netdev(card->dev);
 }
 
-static const struct ethtool_ops qeth_l2_ethtool_ops = {
-	.get_link = ethtool_op_get_link,
-	.get_strings = qeth_core_get_strings,
-	.get_ethtool_stats = qeth_core_get_ethtool_stats,
-	.get_sset_count = qeth_core_get_sset_count,
-	.get_drvinfo = qeth_core_get_drvinfo,
-	.get_link_ksettings = qeth_core_ethtool_get_link_ksettings,
-};
-
-static const struct ethtool_ops qeth_l2_osn_ops = {
-	.get_strings = qeth_core_get_strings,
-	.get_ethtool_stats = qeth_core_get_ethtool_stats,
-	.get_sset_count = qeth_core_get_sset_count,
-	.get_drvinfo = qeth_core_get_drvinfo,
-};
-
 static const struct net_device_ops qeth_l2_netdev_ops = {
-	.ndo_open		= qeth_l2_open,
-	.ndo_stop		= qeth_l2_stop,
-	.ndo_get_stats		= qeth_get_stats,
+	.ndo_open		= qeth_open,
+	.ndo_stop		= qeth_stop,
+	.ndo_get_stats64	= qeth_get_stats64,
 	.ndo_start_xmit		= qeth_l2_hard_start_xmit,
 	.ndo_features_check	= qeth_features_check,
-	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_validate_addr	= qeth_l2_validate_addr,
 	.ndo_set_rx_mode	= qeth_l2_set_rx_mode,
 	.ndo_do_ioctl		= qeth_do_ioctl,
 	.ndo_set_mac_address    = qeth_l2_set_mac_address,
@@ -838,27 +691,36 @@ static const struct net_device_ops qeth_l2_netdev_ops = {
 	.ndo_set_features	= qeth_set_features
 };
 
+static const struct net_device_ops qeth_osn_netdev_ops = {
+	.ndo_open		= qeth_open,
+	.ndo_stop		= qeth_stop,
+	.ndo_get_stats64	= qeth_get_stats64,
+	.ndo_start_xmit		= qeth_l2_hard_start_xmit,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_tx_timeout		= qeth_tx_timeout,
+};
+
 static int qeth_l2_setup_netdev(struct qeth_card *card, bool carrier_ok)
 {
 	int rc;
 
-	if (qeth_netdev_is_registered(card->dev))
-		return 0;
-
-	card->dev->priv_flags |= IFF_UNICAST_FLT;
-	card->dev->netdev_ops = &qeth_l2_netdev_ops;
-	if (card->info.type == QETH_CARD_TYPE_OSN) {
-		card->dev->ethtool_ops = &qeth_l2_osn_ops;
+	if (IS_OSN(card)) {
+		card->dev->netdev_ops = &qeth_osn_netdev_ops;
 		card->dev->flags |= IFF_NOARP;
-	} else {
-		card->dev->ethtool_ops = &qeth_l2_ethtool_ops;
-		card->dev->needed_headroom = sizeof(struct qeth_hdr);
+		goto add_napi;
 	}
 
-	if (card->info.type == QETH_CARD_TYPE_OSM)
+	card->dev->needed_headroom = sizeof(struct qeth_hdr);
+	card->dev->netdev_ops = &qeth_l2_netdev_ops;
+	card->dev->priv_flags |= IFF_UNICAST_FLT;
+
+	if (IS_OSM(card)) {
 		card->dev->features |= NETIF_F_VLAN_CHALLENGED;
-	else
+	} else {
+		if (!IS_VM_NIC(card))
+			card->dev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
 		card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
+	}
 
 	if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
 		card->dev->features |= NETIF_F_SG;
@@ -892,8 +754,7 @@ static int qeth_l2_setup_netdev(struct qeth_card *card, bool carrier_ok)
 				       PAGE_SIZE * (QDIO_MAX_ELEMENTS_PER_BUFFER - 1));
 	}
 
-	if (!is_valid_ether_addr(card->dev->dev_addr))
-		qeth_l2_request_initial_mac(card);
+add_napi:
 	netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT);
 	rc = register_netdev(card->dev);
 	if (!rc && carrier_ok)
@@ -924,11 +785,11 @@ static void qeth_l2_trace_features(struct qeth_card *card)
 		      sizeof(card->options.vnicc.sup_chars));
 }
 
-static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
+static int qeth_l2_set_online(struct ccwgroup_device *gdev)
 {
 	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	struct net_device *dev = card->dev;
 	int rc = 0;
-	enum qeth_card_states recover_flag;
 	bool carrier_ok;
 
 	mutex_lock(&card->discipline_mutex);
@@ -936,25 +797,12 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 	QETH_DBF_TEXT(SETUP, 2, "setonlin");
 	QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
 
-	recover_flag = card->state;
 	rc = qeth_core_hardsetup_card(card, &carrier_ok);
 	if (rc) {
 		QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
 		rc = -ENODEV;
 		goto out_remove;
 	}
-	qeth_bridgeport_query_support(card);
-	if (card->options.sbp.supported_funcs)
-		dev_info(&card->gdev->dev,
-		"The device represents a Bridge Capable Port\n");
-
-	rc = qeth_l2_setup_netdev(card, carrier_ok);
-	if (rc)
-		goto out_remove;
-
-	if (card->info.type != QETH_CARD_TYPE_OSN &&
-	    !qeth_l2_send_setmac(card, card->dev->dev_addr))
-		card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
 
 	if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
 		if (card->info.hwtrap &&
@@ -963,6 +811,13 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 	} else
 		card->info.hwtrap = 0;
 
+	qeth_bridgeport_query_support(card);
+	if (card->options.sbp.supported_funcs)
+		dev_info(&card->gdev->dev,
+		"The device represents a Bridge Capable Port\n");
+
+	qeth_l2_register_dev_addr(card);
+
 	/* for the rx_bcast characteristic, init VNICC after setmac */
 	qeth_l2_vnicc_init(card);
 
@@ -984,11 +839,6 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 			goto out_remove;
 	}
 
-	if (card->info.type != QETH_CARD_TYPE_OSN)
-		qeth_l2_process_vlans(card);
-
-	netif_tx_disable(card->dev);
-
 	rc = qeth_init_qdio_queues(card);
 	if (rc) {
 		QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
@@ -999,17 +849,25 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 
 	qeth_set_allowed_threads(card, 0xffffffff, 0);
 
-	qeth_enable_hw_features(card->dev);
-	if (recover_flag == CARD_STATE_RECOVER) {
-		if (recovery_mode &&
-		    card->info.type != QETH_CARD_TYPE_OSN) {
-			__qeth_l2_open(card->dev);
-			qeth_l2_set_rx_mode(card->dev);
-		} else {
-			rtnl_lock();
-			dev_open(card->dev, NULL);
-			rtnl_unlock();
+	if (!qeth_netdev_is_registered(dev)) {
+		rc = qeth_l2_setup_netdev(card, carrier_ok);
+		if (rc)
+			goto out_remove;
+	} else {
+		rtnl_lock();
+		if (carrier_ok)
+			netif_carrier_on(dev);
+		else
+			netif_carrier_off(dev);
+
+		netif_device_attach(dev);
+		qeth_enable_hw_features(dev);
+
+		if (card->info.open_when_online) {
+			card->info.open_when_online = 0;
+			dev_open(dev, NULL);
 		}
+		rtnl_unlock();
 	}
 	/* let user_space know that device is online */
 	kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
@@ -1018,44 +876,42 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 	return 0;
 
 out_remove:
-	qeth_l2_stop_card(card, 0);
+	qeth_l2_stop_card(card);
 	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));
-	if (recover_flag == CARD_STATE_RECOVER)
-		card->state = CARD_STATE_RECOVER;
-	else
-		card->state = CARD_STATE_DOWN;
+	card->state = CARD_STATE_DOWN;
+
 	mutex_unlock(&card->conf_mutex);
 	mutex_unlock(&card->discipline_mutex);
 	return rc;
 }
 
-static int qeth_l2_set_online(struct ccwgroup_device *gdev)
-{
-	return __qeth_l2_set_online(gdev, 0);
-}
-
 static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
 					int recovery_mode)
 {
 	struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
 	int rc = 0, rc2 = 0, rc3 = 0;
-	enum qeth_card_states recover_flag;
 
 	mutex_lock(&card->discipline_mutex);
 	mutex_lock(&card->conf_mutex);
 	QETH_DBF_TEXT(SETUP, 3, "setoffl");
 	QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
 
-	netif_carrier_off(card->dev);
-	recover_flag = card->state;
 	if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
 		qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
 		card->info.hwtrap = 1;
 	}
-	qeth_l2_stop_card(card, recovery_mode);
+
+	rtnl_lock();
+	card->info.open_when_online = card->dev->flags & IFF_UP;
+	dev_close(card->dev);
+	netif_device_detach(card->dev);
+	netif_carrier_off(card->dev);
+	rtnl_unlock();
+
+	qeth_l2_stop_card(card);
 	rc  = ccw_device_set_offline(CARD_DDEV(card));
 	rc2 = ccw_device_set_offline(CARD_WDEV(card));
 	rc3 = ccw_device_set_offline(CARD_RDEV(card));
@@ -1064,8 +920,7 @@ static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
 	if (rc)
 		QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
 	qdio_free(CARD_DDEV(card));
-	if (recover_flag == CARD_STATE_UP)
-		card->state = CARD_STATE_RECOVER;
+
 	/* let user_space know that device is offline */
 	kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
 	mutex_unlock(&card->conf_mutex);
@@ -1090,18 +945,16 @@ static int qeth_l2_recover(void *ptr)
 	QETH_CARD_TEXT(card, 2, "recover2");
 	dev_warn(&card->gdev->dev,
 		"A recovery process has been started for the device\n");
-	qeth_set_recovery_task(card);
 	__qeth_l2_set_offline(card->gdev, 1);
-	rc = __qeth_l2_set_online(card->gdev, 1);
+	rc = qeth_l2_set_online(card->gdev);
 	if (!rc)
 		dev_info(&card->gdev->dev,
 			"Device successfully recovered!\n");
 	else {
-		qeth_close_dev(card);
+		ccwgroup_set_offline(card->gdev);
 		dev_warn(&card->gdev->dev, "The qeth device driver "
 				"failed to recover an error on the device\n");
 	}
-	qeth_clear_recovery_task(card);
 	qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 	qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 	return 0;
@@ -1122,37 +975,23 @@ static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
 {
 	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
 
-	netif_device_detach(card->dev);
 	qeth_set_allowed_threads(card, 0, 1);
 	wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
 	if (gdev->state == CCWGROUP_OFFLINE)
 		return 0;
-	if (card->state == CARD_STATE_UP) {
-		if (card->info.hwtrap)
-			qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
-		__qeth_l2_set_offline(card->gdev, 1);
-	} else
-		__qeth_l2_set_offline(card->gdev, 0);
+
+	qeth_l2_set_offline(gdev);
 	return 0;
 }
 
 static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
 {
 	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
-	int rc = 0;
+	int rc;
 
-	if (card->state == CARD_STATE_RECOVER) {
-		rc = __qeth_l2_set_online(card->gdev, 1);
-		if (rc) {
-			rtnl_lock();
-			dev_close(card->dev);
-			rtnl_unlock();
-		}
-	} else
-		rc = __qeth_l2_set_online(card->gdev, 0);
+	rc = qeth_l2_set_online(gdev);
 
 	qeth_set_allowed_threads(card, 0xffffffff, 0);
-	netif_device_attach(card->dev);
 	if (rc)
 		dev_warn(&card->gdev->dev, "The qeth device driver "
 			"failed to recover an error on the device\n");
@@ -1224,20 +1063,14 @@ static int qeth_osn_send_control_data(struct qeth_card *card, int len,
 }
 
 static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
-			struct qeth_cmd_buffer *iob, int data_len)
+				 struct qeth_cmd_buffer *iob)
 {
-	u16 s1, s2;
+	u16 length;
 
 	QETH_CARD_TEXT(card, 4, "osndipa");
 
-	qeth_prepare_ipa_cmd(card, iob);
-	s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
-	s2 = (u16)data_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_osn_send_control_data(card, s1, iob);
+	memcpy(&length, QETH_IPA_PDU_LEN_TOTAL(iob->data), 2);
+	return qeth_osn_send_control_data(card, length, iob);
 }
 
 int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
@@ -1254,8 +1087,9 @@ int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
 	if (!qeth_card_hw_is_reachable(card))
 		return -ENODEV;
 	iob = qeth_wait_for_buffer(&card->write);
+	qeth_prepare_ipa_cmd(card, iob, (u16) data_len);
 	memcpy(__ipa_cmd(iob), data, data_len);
-	return qeth_osn_send_ipa_cmd(card, iob, data_len);
+	return qeth_osn_send_ipa_cmd(card, iob);
 }
 EXPORT_SYMBOL(qeth_osn_assist);
 
@@ -1434,7 +1268,7 @@ static void qeth_bridge_state_change(struct qeth_card *card,
 	data->card = card;
 	memcpy(&data->qports, qports,
 			sizeof(struct qeth_sbp_state_change) + extrasize);
-	queue_work(qeth_wq, &data->worker);
+	queue_work(card->event_wq, &data->worker);
 }
 
 struct qeth_bridge_host_data {
@@ -1506,14 +1340,12 @@ static void qeth_bridge_host_event(struct qeth_card *card,
 	data->card = card;
 	memcpy(&data->hostevs, hostevs,
 			sizeof(struct qeth_ipacmd_addr_change) + extrasize);
-	queue_work(qeth_wq, &data->worker);
+	queue_work(card->event_wq, &data->worker);
 }
 
 /* SETBRIDGEPORT support; sending commands */
 
 struct _qeth_sbp_cbctl {
-	u16 ipa_rc;
-	u16 cmd_rc;
 	union {
 		u32 supported;
 		struct {
@@ -1523,23 +1355,21 @@ struct _qeth_sbp_cbctl {
 	} data;
 };
 
-/**
- * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
- * @card:		      qeth_card structure pointer, for debug messages.
- * @cbctl:		      state structure with hardware return codes.
- * @setcmd:		      IPA command code
- *
- * Returns negative errno-compatible error indication or 0 on success.
- */
 static int qeth_bridgeport_makerc(struct qeth_card *card,
-	struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
+				  struct qeth_ipa_cmd *cmd)
 {
+	struct qeth_ipacmd_setbridgeport *sbp = &cmd->data.sbp;
+	enum qeth_ipa_sbp_cmd setcmd = sbp->hdr.command_code;
+	u16 ipa_rc = cmd->hdr.return_code;
+	u16 sbp_rc = sbp->hdr.return_code;
 	int rc;
-	int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD);
 
-	if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) ||
-	    (!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc)))
-		switch (cbctl->cmd_rc) {
+	if (ipa_rc == IPA_RC_SUCCESS && sbp_rc == IPA_RC_SUCCESS)
+		return 0;
+
+	if ((IS_IQD(card) && ipa_rc == IPA_RC_SUCCESS) ||
+	    (!IS_IQD(card) && ipa_rc == sbp_rc)) {
+		switch (sbp_rc) {
 		case IPA_RC_SUCCESS:
 			rc = 0;
 			break;
@@ -1603,8 +1433,8 @@ static int qeth_bridgeport_makerc(struct qeth_card *card,
 		default:
 			rc = -EIO;
 		}
-	else
-		switch (cbctl->ipa_rc) {
+	} else {
+		switch (ipa_rc) {
 		case IPA_RC_NOTSUPP:
 			rc = -EOPNOTSUPP;
 			break;
@@ -1614,10 +1444,11 @@ static int qeth_bridgeport_makerc(struct qeth_card *card,
 		default:
 			rc = -EIO;
 		}
+	}
 
 	if (rc) {
-		QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc);
-		QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
+		QETH_CARD_TEXT_(card, 2, "SBPi%04x", ipa_rc);
+		QETH_CARD_TEXT_(card, 2, "SBPc%04x", sbp_rc);
 	}
 	return rc;
 }
@@ -1649,15 +1480,15 @@ static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
 {
 	struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
 	struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
+	int rc;
+
 	QETH_CARD_TEXT(card, 2, "brqsupcb");
-	cbctl->ipa_rc = cmd->hdr.return_code;
-	cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
-	if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
-		cbctl->data.supported =
-			cmd->data.sbp.data.query_cmds_supp.supported_cmds;
-	} else {
-		cbctl->data.supported = 0;
-	}
+	rc = qeth_bridgeport_makerc(card, cmd);
+	if (rc)
+		return rc;
+
+	cbctl->data.supported =
+		cmd->data.sbp.data.query_cmds_supp.supported_cmds;
 	return 0;
 }
 
@@ -1678,12 +1509,11 @@ static void qeth_bridgeport_query_support(struct qeth_card *card)
 				 sizeof(struct qeth_sbp_query_cmds_supp));
 	if (!iob)
 		return;
+
 	if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
-							(void *)&cbctl) ||
-	    qeth_bridgeport_makerc(card, &cbctl,
-					IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
-		/* non-zero makerc signifies failure, and produce messages */
+			      &cbctl)) {
 		card->options.sbp.role = QETH_SBP_ROLE_NONE;
+		card->options.sbp.supported_funcs = 0;
 		return;
 	}
 	card->options.sbp.supported_funcs = cbctl.data.supported;
@@ -1695,16 +1525,16 @@ static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
 	struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
 	struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
 	struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
+	int rc;
 
 	QETH_CARD_TEXT(card, 2, "brqprtcb");
-	cbctl->ipa_rc = cmd->hdr.return_code;
-	cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
-	if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
-		return 0;
+	rc = qeth_bridgeport_makerc(card, cmd);
+	if (rc)
+		return rc;
+
 	if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
-		cbctl->cmd_rc = 0xffff;
 		QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
-		return 0;
+		return -EINVAL;
 	}
 	/* first entry contains the state of the local port */
 	if (qports->num_entries > 0) {
@@ -1729,7 +1559,6 @@ static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
 int qeth_bridgeport_query_ports(struct qeth_card *card,
 	enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
 {
-	int rc = 0;
 	struct qeth_cmd_buffer *iob;
 	struct _qeth_sbp_cbctl cbctl = {
 		.data = {
@@ -1746,22 +1575,18 @@ int qeth_bridgeport_query_ports(struct qeth_card *card,
 	iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_BRIDGE_PORTS, 0);
 	if (!iob)
 		return -ENOMEM;
-	rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
-				(void *)&cbctl);
-	if (rc < 0)
-		return rc;
-	return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
+
+	return qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
+				 &cbctl);
 }
 
 static int qeth_bridgeport_set_cb(struct qeth_card *card,
 	struct qeth_reply *reply, unsigned long data)
 {
 	struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
-	struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
+
 	QETH_CARD_TEXT(card, 2, "brsetrcb");
-	cbctl->ipa_rc = cmd->hdr.return_code;
-	cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
-	return 0;
+	return qeth_bridgeport_makerc(card, cmd);
 }
 
 /**
@@ -1773,10 +1598,8 @@ static int qeth_bridgeport_set_cb(struct qeth_card *card,
  */
 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
 {
-	int rc = 0;
 	int cmdlength;
 	struct qeth_cmd_buffer *iob;
-	struct _qeth_sbp_cbctl cbctl;
 	enum qeth_ipa_sbp_cmd setcmd;
 
 	QETH_CARD_TEXT(card, 2, "brsetrol");
@@ -1801,11 +1624,8 @@ int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
 	iob = qeth_sbp_build_cmd(card, setcmd, cmdlength);
 	if (!iob)
 		return -ENOMEM;
-	rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
-				(void *)&cbctl);
-	if (rc < 0)
-		return rc;
-	return qeth_bridgeport_makerc(card, &cbctl, setcmd);
+
+	return qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb, NULL);
 }
 
 /**
@@ -1909,7 +1729,7 @@ static bool qeth_bridgeport_is_in_use(struct qeth_card *card)
 /* VNIC Characteristics support */
 
 /* handle VNICC IPA command return codes; convert to error codes */
-static int qeth_l2_vnicc_makerc(struct qeth_card *card, int ipa_rc)
+static int qeth_l2_vnicc_makerc(struct qeth_card *card, u16 ipa_rc)
 {
 	int rc;
 
@@ -1967,7 +1787,7 @@ static int qeth_l2_vnicc_request_cb(struct qeth_card *card,
 
 	QETH_CARD_TEXT(card, 2, "vniccrcb");
 	if (cmd->hdr.return_code)
-		return 0;
+		return qeth_l2_vnicc_makerc(card, cmd->hdr.return_code);
 	/* return results to caller */
 	card->options.vnicc.sup_chars = rep->hdr.sup;
 	card->options.vnicc.cur_chars = rep->hdr.cur;
@@ -1988,7 +1808,6 @@ static int qeth_l2_vnicc_request(struct qeth_card *card,
 	struct qeth_ipacmd_vnicc *req;
 	struct qeth_cmd_buffer *iob;
 	struct qeth_ipa_cmd *cmd;
-	int rc;
 
 	QETH_CARD_TEXT(card, 2, "vniccreq");
 
@@ -2031,10 +1850,7 @@ static int qeth_l2_vnicc_request(struct qeth_card *card,
 	}
 
 	/* send request */
-	rc = qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb,
-			       (void *) cbctl);
-
-	return qeth_l2_vnicc_makerc(card, rc);
+	return qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb, cbctl);
 }
 
 /* VNICC query VNIC characteristics request */