Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 3797 insertions, 0 deletions

diff --git a/kernel/drivers/s390/net/qeth_l3_main.c b/kernel/drivers/s390/net/qeth_l3_main.c
new file mode 100644
index 000000000..04e42c649
--- /dev/null
+++ b/kernel/drivers/s390/net/qeth_l3_main.c
@@ -0,0 +1,3797 @@
+/*
+ *    Copyright IBM Corp. 2007, 2009
+ *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
+ *		 Frank Pavlic <fpavlic@de.ibm.com>,
+ *		 Thomas Spatzier <tspat@de.ibm.com>,
+ *		 Frank Blaschka <frank.blaschka@de.ibm.com>
+ */
+
+#define KMSG_COMPONENT "qeth"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/bitops.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/etherdevice.h>
+#include <linux/mii.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/inetdevice.h>
+#include <linux/igmp.h>
+#include <linux/slab.h>
+#include <linux/if_vlan.h>
+
+#include <net/ip.h>
+#include <net/arp.h>
+#include <net/route.h>
+#include <net/ip6_fib.h>
+#include <net/ip6_checksum.h>
+#include <net/iucv/af_iucv.h>
+
+#include "qeth_l3.h"
+
+
+static int qeth_l3_set_offline(struct ccwgroup_device *);
+static int qeth_l3_recover(void *);
+static int qeth_l3_stop(struct net_device *);
+static void qeth_l3_set_multicast_list(struct net_device *);
+static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
+static int qeth_l3_register_addr_entry(struct qeth_card *,
+		struct qeth_ipaddr *);
+static int qeth_l3_deregister_addr_entry(struct qeth_card *,
+		struct qeth_ipaddr *);
+static int __qeth_l3_set_online(struct ccwgroup_device *, int);
+static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
+
+static int qeth_l3_isxdigit(char *buf)
+{
+	while (*buf) {
+		if (!isxdigit(*buf++))
+			return 0;
+	}
+	return 1;
+}
+
+static void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
+{
+	sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
+}
+
+static int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
+{
+	int count = 0, rc = 0;
+	unsigned int in[4];
+	char c;
+
+	rc = sscanf(buf, "%u.%u.%u.%u%c",
+		    &in[0], &in[1], &in[2], &in[3], &c);
+	if (rc != 4 && (rc != 5 || c != '\n'))
+		return -EINVAL;
+	for (count = 0; count < 4; count++) {
+		if (in[count] > 255)
+			return -EINVAL;
+		addr[count] = in[count];
+	}
+	return 0;
+}
+
+static void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
+{
+	sprintf(buf, "%pI6", addr);
+}
+
+static int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
+{
+	const char *end, *end_tmp, *start;
+	__u16 *in;
+	char num[5];
+	int num2, cnt, out, found, save_cnt;
+	unsigned short in_tmp[8] = {0, };
+
+	cnt = out = found = save_cnt = num2 = 0;
+	end = start = buf;
+	in = (__u16 *) addr;
+	memset(in, 0, 16);
+	while (*end) {
+		end = strchr(start, ':');
+		if (end == NULL) {
+			end = buf + strlen(buf);
+			end_tmp = strchr(start, '\n');
+			if (end_tmp != NULL)
+				end = end_tmp;
+			out = 1;
+		}
+		if ((end - start)) {
+			memset(num, 0, 5);
+			if ((end - start) > 4)
+				return -EINVAL;
+			memcpy(num, start, end - start);
+			if (!qeth_l3_isxdigit(num))
+				return -EINVAL;
+			sscanf(start, "%x", &num2);
+			if (found)
+				in_tmp[save_cnt++] = num2;
+			else
+				in[cnt++] = num2;
+			if (out)
+				break;
+		} else {
+			if (found)
+				return -EINVAL;
+			found = 1;
+		}
+		start = ++end;
+	}
+	if (cnt + save_cnt > 8)
+		return -EINVAL;
+	cnt = 7;
+	while (save_cnt)
+		in[cnt--] = in_tmp[--save_cnt];
+	return 0;
+}
+
+void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
+				char *buf)
+{
+	if (proto == QETH_PROT_IPV4)
+		qeth_l3_ipaddr4_to_string(addr, buf);
+	else if (proto == QETH_PROT_IPV6)
+		qeth_l3_ipaddr6_to_string(addr, buf);
+}
+
+int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
+				__u8 *addr)
+{
+	if (proto == QETH_PROT_IPV4)
+		return qeth_l3_string_to_ipaddr4(buf, addr);
+	else if (proto == QETH_PROT_IPV6)
+		return qeth_l3_string_to_ipaddr6(buf, addr);
+	else
+		return -EINVAL;
+}
+
+static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
+{
+	int i, j;
+	u8 octet;
+
+	for (i = 0; i < len; ++i) {
+		octet = addr[i];
+		for (j = 7; j >= 0; --j) {
+			bits[i*8 + j] = octet & 1;
+			octet >>= 1;
+		}
+	}
+}
+
+int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
+						struct qeth_ipaddr *addr)
+{
+	struct qeth_ipato_entry *ipatoe;
+	u8 addr_bits[128] = {0, };
+	u8 ipatoe_bits[128] = {0, };
+	int rc = 0;
+
+	if (!card->ipato.enabled)
+		return 0;
+
+	qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
+				  (addr->proto == QETH_PROT_IPV4)? 4:16);
+	list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
+		if (addr->proto != ipatoe->proto)
+			continue;
+		qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
+					  (ipatoe->proto == QETH_PROT_IPV4) ?
+					  4 : 16);
+		if (addr->proto == QETH_PROT_IPV4)
+			rc = !memcmp(addr_bits, ipatoe_bits,
+				     min(32, ipatoe->mask_bits));
+		else
+			rc = !memcmp(addr_bits, ipatoe_bits,
+				     min(128, ipatoe->mask_bits));
+		if (rc)
+			break;
+	}
+	/* invert? */
+	if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
+		rc = !rc;
+	else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
+		rc = !rc;
+
+	return rc;
+}
+
+/*
+ * Add IP to be added to todo list. If there is already an "add todo"
+ * in this list we just incremenent the reference count.
+ * Returns 0 if we  just incremented reference count.
+ */
+static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
+					struct qeth_ipaddr *addr, int add)
+{
+	struct qeth_ipaddr *tmp, *t;
+	int found = 0;
+
+	if (card->options.sniffer)
+		return 0;
+	list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
+		if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
+		    (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
+			return 0;
+		if ((tmp->proto        == QETH_PROT_IPV4)     &&
+		    (addr->proto       == QETH_PROT_IPV4)     &&
+		    (tmp->type         == addr->type)         &&
+		    (tmp->is_multicast == addr->is_multicast) &&
+		    (tmp->u.a4.addr    == addr->u.a4.addr)    &&
+		    (tmp->u.a4.mask    == addr->u.a4.mask)) {
+			found = 1;
+			break;
+		}
+		if ((tmp->proto        == QETH_PROT_IPV6)      &&
+		    (addr->proto       == QETH_PROT_IPV6)      &&
+		    (tmp->type         == addr->type)          &&
+		    (tmp->is_multicast == addr->is_multicast)  &&
+		    (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
+		    (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
+			    sizeof(struct in6_addr)) == 0)) {
+			found = 1;
+			break;
+		}
+	}
+	if (found) {
+		if (addr->users != 0)
+			tmp->users += addr->users;
+		else
+			tmp->users += add ? 1 : -1;
+		if (tmp->users == 0) {
+			list_del(&tmp->entry);
+			kfree(tmp);
+		}
+		return 0;
+	} else {
+		if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
+			list_add(&addr->entry, card->ip_tbd_list);
+		else {
+			if (addr->users == 0)
+				addr->users += add ? 1 : -1;
+			if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
+			    qeth_l3_is_addr_covered_by_ipato(card, addr)) {
+				QETH_CARD_TEXT(card, 2, "tkovaddr");
+				addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
+			}
+			list_add_tail(&addr->entry, card->ip_tbd_list);
+		}
+		return 1;
+	}
+}
+
+int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
+{
+	unsigned long flags;
+	int rc = 0;
+
+	QETH_CARD_TEXT(card, 4, "delip");
+
+	if (addr->proto == QETH_PROT_IPV4)
+		QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
+	else {
+		QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
+		QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
+	}
+	spin_lock_irqsave(&card->ip_lock, flags);
+	rc = __qeth_l3_insert_ip_todo(card, addr, 0);
+	spin_unlock_irqrestore(&card->ip_lock, flags);
+	return rc;
+}
+
+int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
+{
+	unsigned long flags;
+	int rc = 0;
+
+	QETH_CARD_TEXT(card, 4, "addip");
+	if (addr->proto == QETH_PROT_IPV4)
+		QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
+	else {
+		QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
+		QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
+	}
+	spin_lock_irqsave(&card->ip_lock, flags);
+	rc = __qeth_l3_insert_ip_todo(card, addr, 1);
+	spin_unlock_irqrestore(&card->ip_lock, flags);
+	return rc;
+}
+
+
+struct qeth_ipaddr *qeth_l3_get_addr_buffer(
+				enum qeth_prot_versions prot)
+{
+	struct qeth_ipaddr *addr;
+
+	addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
+	if (addr == NULL) {
+		return NULL;
+	}
+	addr->type = QETH_IP_TYPE_NORMAL;
+	addr->proto = prot;
+	return addr;
+}
+
+static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
+{
+	struct qeth_ipaddr *iptodo;
+	unsigned long flags;
+
+	QETH_CARD_TEXT(card, 4, "delmc");
+	iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
+	if (!iptodo) {
+		QETH_CARD_TEXT(card, 2, "dmcnomem");
+		return;
+	}
+	iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
+	spin_lock_irqsave(&card->ip_lock, flags);
+	if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
+		kfree(iptodo);
+	spin_unlock_irqrestore(&card->ip_lock, flags);
+}
+
+/*
+ * Add/remove address to/from card's ip list, i.e. try to add or remove
+ * reference to/from an IP address that is already registered on the card.
+ * Returns:
+ *	0  address was on card and its reference count has been adjusted,
+ *	   but is still > 0, so nothing has to be done
+ *	   also returns 0 if card was not on card and the todo was to delete
+ *	   the address -> there is also nothing to be done
+ *	1  address was not on card and the todo is to add it to the card's ip
+ *	   list
+ *	-1 address was on card and its reference count has been decremented
+ *	   to <= 0 by the todo -> address must be removed from card
+ */
+static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
+		struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
+{
+	struct qeth_ipaddr *addr;
+	int found = 0;
+
+	list_for_each_entry(addr, &card->ip_list, entry) {
+		if ((addr->proto == QETH_PROT_IPV4) &&
+		    (todo->proto == QETH_PROT_IPV4) &&
+		    (addr->type == todo->type) &&
+		    (addr->u.a4.addr == todo->u.a4.addr) &&
+		    (addr->u.a4.mask == todo->u.a4.mask)) {
+			found = 1;
+			break;
+		}
+		if ((addr->proto == QETH_PROT_IPV6) &&
+		    (todo->proto == QETH_PROT_IPV6) &&
+		    (addr->type == todo->type) &&
+		    (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
+		    (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
+			    sizeof(struct in6_addr)) == 0)) {
+			found = 1;
+			break;
+		}
+	}
+	if (found) {
+		addr->users += todo->users;
+		if (addr->users <= 0) {
+			*__addr = addr;
+			return -1;
+		} else {
+			/* for VIPA and RXIP limit refcount to 1 */
+			if (addr->type != QETH_IP_TYPE_NORMAL)
+				addr->users = 1;
+			return 0;
+		}
+	}
+	if (todo->users > 0) {
+		/* for VIPA and RXIP limit refcount to 1 */
+		if (todo->type != QETH_IP_TYPE_NORMAL)
+			todo->users = 1;
+		return 1;
+	} else
+		return 0;
+}
+
+static void __qeth_l3_delete_all_mc(struct qeth_card *card,
+					unsigned long *flags)
+{
+	struct list_head fail_list;
+	struct qeth_ipaddr *addr, *tmp;
+	int rc;
+
+	INIT_LIST_HEAD(&fail_list);
+again:
+	list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
+		if (addr->is_multicast) {
+			list_del(&addr->entry);
+			spin_unlock_irqrestore(&card->ip_lock, *flags);
+			rc = qeth_l3_deregister_addr_entry(card, addr);
+			spin_lock_irqsave(&card->ip_lock, *flags);
+			if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
+				kfree(addr);
+			else
+				list_add_tail(&addr->entry, &fail_list);
+			goto again;
+		}
+	}
+	list_splice(&fail_list, &card->ip_list);
+}
+
+void qeth_l3_set_ip_addr_list(struct qeth_card *card)
+{
+	struct list_head *tbd_list;
+	struct qeth_ipaddr *todo, *addr;
+	unsigned long flags;
+	int rc;
+
+	QETH_CARD_TEXT(card, 2, "sdiplist");
+	QETH_CARD_HEX(card, 2, &card, sizeof(void *));
+
+	if (!qeth_card_hw_is_reachable(card) || card->options.sniffer)
+		return;
+
+	spin_lock_irqsave(&card->ip_lock, flags);
+	tbd_list = card->ip_tbd_list;
+	card->ip_tbd_list = kzalloc(sizeof(struct list_head), GFP_ATOMIC);
+	if (!card->ip_tbd_list) {
+		QETH_CARD_TEXT(card, 0, "silnomem");
+		card->ip_tbd_list = tbd_list;
+		spin_unlock_irqrestore(&card->ip_lock, flags);
+		return;
+	} else
+		INIT_LIST_HEAD(card->ip_tbd_list);
+
+	while (!list_empty(tbd_list)) {
+		todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
+		list_del(&todo->entry);
+		if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
+			__qeth_l3_delete_all_mc(card, &flags);
+			kfree(todo);
+			continue;
+		}
+		rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
+		if (rc == 0) {
+			/* nothing to be done; only adjusted refcount */
+			kfree(todo);
+		} else if (rc == 1) {
+			/* new entry to be added to on-card list */
+			spin_unlock_irqrestore(&card->ip_lock, flags);
+			rc = qeth_l3_register_addr_entry(card, todo);
+			spin_lock_irqsave(&card->ip_lock, flags);
+			if (!rc || (rc == IPA_RC_LAN_OFFLINE))
+				list_add_tail(&todo->entry, &card->ip_list);
+			else
+				kfree(todo);
+		} else if (rc == -1) {
+			/* on-card entry to be removed */
+			list_del_init(&addr->entry);
+			spin_unlock_irqrestore(&card->ip_lock, flags);
+			rc = qeth_l3_deregister_addr_entry(card, addr);
+			spin_lock_irqsave(&card->ip_lock, flags);
+			if (!rc || (rc == IPA_RC_IP_ADDRESS_NOT_DEFINED))
+				kfree(addr);
+			else
+				list_add_tail(&addr->entry, &card->ip_list);
+			kfree(todo);
+		}
+	}
+	spin_unlock_irqrestore(&card->ip_lock, flags);
+	kfree(tbd_list);
+}
+
+static void qeth_l3_clear_ip_list(struct qeth_card *card, int recover)
+{
+	struct qeth_ipaddr *addr, *tmp;
+	unsigned long flags;
+
+	QETH_CARD_TEXT(card, 4, "clearip");
+	if (recover && card->options.sniffer)
+		return;
+	spin_lock_irqsave(&card->ip_lock, flags);
+	/* clear todo list */
+	list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
+		list_del(&addr->entry);
+		kfree(addr);
+	}
+
+	while (!list_empty(&card->ip_list)) {
+		addr = list_entry(card->ip_list.next,
+				  struct qeth_ipaddr, entry);
+		list_del_init(&addr->entry);
+		if (!recover || addr->is_multicast) {
+			kfree(addr);
+			continue;
+		}
+		list_add_tail(&addr->entry, card->ip_tbd_list);
+	}
+	spin_unlock_irqrestore(&card->ip_lock, flags);
+}
+
+static int qeth_l3_address_exists_in_list(struct list_head *list,
+		struct qeth_ipaddr *addr, int same_type)
+{
+	struct qeth_ipaddr *tmp;
+
+	list_for_each_entry(tmp, list, entry) {
+		if ((tmp->proto == QETH_PROT_IPV4) &&
+		    (addr->proto == QETH_PROT_IPV4) &&
+		    ((same_type && (tmp->type == addr->type)) ||
+		    (!same_type && (tmp->type != addr->type))) &&
+		    (tmp->u.a4.addr == addr->u.a4.addr))
+			return 1;
+
+		if ((tmp->proto == QETH_PROT_IPV6) &&
+		    (addr->proto == QETH_PROT_IPV6) &&
+		    ((same_type && (tmp->type == addr->type)) ||
+		    (!same_type && (tmp->type != addr->type))) &&
+		    (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
+			    sizeof(struct in6_addr)) == 0))
+			return 1;
+
+	}
+	return 0;
+}
+
+static int qeth_l3_send_setdelmc(struct qeth_card *card,
+			struct qeth_ipaddr *addr, int ipacmd)
+{
+	int rc;
+	struct qeth_cmd_buffer *iob;
+	struct qeth_ipa_cmd *cmd;
+
+	QETH_CARD_TEXT(card, 4, "setdelmc");
+
+	iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
+	if (!iob)
+		return -ENOMEM;
+	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+	memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
+	if (addr->proto == QETH_PROT_IPV6)
+		memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
+		       sizeof(struct in6_addr));
+	else
+		memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
+
+	rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
+
+	return rc;
+}
+
+static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
+{
+	int i, j;
+	for (i = 0; i < 16; i++) {
+		j = (len) - (i * 8);
+		if (j >= 8)
+			netmask[i] = 0xff;
+		else if (j > 0)
+			netmask[i] = (u8)(0xFF00 >> j);
+		else
+			netmask[i] = 0;
+	}
+}
+
+static int qeth_l3_send_setdelip(struct qeth_card *card,
+		struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
+{
+	int rc;
+	struct qeth_cmd_buffer *iob;
+	struct qeth_ipa_cmd *cmd;
+	__u8 netmask[16];
+
+	QETH_CARD_TEXT(card, 4, "setdelip");
+	QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
+
+	iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
+	if (!iob)
+		return -ENOMEM;
+	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+	if (addr->proto == QETH_PROT_IPV6) {
+		memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
+		       sizeof(struct in6_addr));
+		qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
+		memcpy(cmd->data.setdelip6.mask, netmask,
+		       sizeof(struct in6_addr));
+		cmd->data.setdelip6.flags = flags;
+	} else {
+		memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
+		memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
+		cmd->data.setdelip4.flags = flags;
+	}
+
+	rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
+
+	return rc;
+}
+
+static int qeth_l3_send_setrouting(struct qeth_card *card,
+	enum qeth_routing_types type, enum qeth_prot_versions prot)
+{
+	int rc;
+	struct qeth_ipa_cmd *cmd;
+	struct qeth_cmd_buffer *iob;
+
+	QETH_CARD_TEXT(card, 4, "setroutg");
+	iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
+	if (!iob)
+		return -ENOMEM;
+	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+	cmd->data.setrtg.type = (type);
+	rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
+
+	return rc;
+}
+
+static int qeth_l3_correct_routing_type(struct qeth_card *card,
+		enum qeth_routing_types *type, enum qeth_prot_versions prot)
+{
+	if (card->info.type == QETH_CARD_TYPE_IQD) {
+		switch (*type) {
+		case NO_ROUTER:
+		case PRIMARY_CONNECTOR:
+		case SECONDARY_CONNECTOR:
+		case MULTICAST_ROUTER:
+			return 0;
+		default:
+			goto out_inval;
+		}
+	} else {
+		switch (*type) {
+		case NO_ROUTER:
+		case PRIMARY_ROUTER:
+		case SECONDARY_ROUTER:
+			return 0;
+		case MULTICAST_ROUTER:
+			if (qeth_is_ipafunc_supported(card, prot,
+						      IPA_OSA_MC_ROUTER))
+				return 0;
+		default:
+			goto out_inval;
+		}
+	}
+out_inval:
+	*type = NO_ROUTER;
+	return -EINVAL;
+}
+
+int qeth_l3_setrouting_v4(struct qeth_card *card)
+{
+	int rc;
+
+	QETH_CARD_TEXT(card, 3, "setrtg4");
+
+	rc = qeth_l3_correct_routing_type(card, &card->options.route4.type,
+				  QETH_PROT_IPV4);
+	if (rc)
+		return rc;
+
+	rc = qeth_l3_send_setrouting(card, card->options.route4.type,
+				  QETH_PROT_IPV4);
+	if (rc) {
+		card->options.route4.type = NO_ROUTER;
+		QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
+			" on %s. Type set to 'no router'.\n", rc,
+			QETH_CARD_IFNAME(card));
+	}
+	return rc;
+}
+
+int qeth_l3_setrouting_v6(struct qeth_card *card)
+{
+	int rc = 0;
+
+	QETH_CARD_TEXT(card, 3, "setrtg6");
+#ifdef CONFIG_QETH_IPV6
+
+	if (!qeth_is_supported(card, IPA_IPV6))
+		return 0;
+	rc = qeth_l3_correct_routing_type(card, &card->options.route6.type,
+				  QETH_PROT_IPV6);
+	if (rc)
+		return rc;
+
+	rc = qeth_l3_send_setrouting(card, card->options.route6.type,
+				  QETH_PROT_IPV6);
+	if (rc) {
+		card->options.route6.type = NO_ROUTER;
+		QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
+			" on %s. Type set to 'no router'.\n", rc,
+			QETH_CARD_IFNAME(card));
+	}
+#endif
+	return rc;
+}
+
+/*
+ * IP address takeover related functions
+ */
+static void qeth_l3_clear_ipato_list(struct qeth_card *card)
+{
+
+	struct qeth_ipato_entry *ipatoe, *tmp;
+	unsigned long flags;
+
+	spin_lock_irqsave(&card->ip_lock, flags);
+	list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
+		list_del(&ipatoe->entry);
+		kfree(ipatoe);
+	}
+	spin_unlock_irqrestore(&card->ip_lock, flags);
+}
+
+int qeth_l3_add_ipato_entry(struct qeth_card *card,
+				struct qeth_ipato_entry *new)
+{
+	struct qeth_ipato_entry *ipatoe;
+	unsigned long flags;
+	int rc = 0;
+
+	QETH_CARD_TEXT(card, 2, "addipato");
+	spin_lock_irqsave(&card->ip_lock, flags);
+	list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
+		if (ipatoe->proto != new->proto)
+			continue;
+		if (!memcmp(ipatoe->addr, new->addr,
+			    (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
+		    (ipatoe->mask_bits == new->mask_bits)) {
+			rc = -EEXIST;
+			break;
+		}
+	}
+	if (!rc)
+		list_add_tail(&new->entry, &card->ipato.entries);
+
+	spin_unlock_irqrestore(&card->ip_lock, flags);
+	return rc;
+}
+
+void qeth_l3_del_ipato_entry(struct qeth_card *card,
+		enum qeth_prot_versions proto, u8 *addr, int mask_bits)
+{
+	struct qeth_ipato_entry *ipatoe, *tmp;
+	unsigned long flags;
+
+	QETH_CARD_TEXT(card, 2, "delipato");
+	spin_lock_irqsave(&card->ip_lock, flags);
+	list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
+		if (ipatoe->proto != proto)
+			continue;
+		if (!memcmp(ipatoe->addr, addr,
+			    (proto == QETH_PROT_IPV4)? 4:16) &&
+		    (ipatoe->mask_bits == mask_bits)) {
+			list_del(&ipatoe->entry);
+			kfree(ipatoe);
+		}
+	}
+	spin_unlock_irqrestore(&card->ip_lock, flags);
+}
+
+/*
+ * VIPA related functions
+ */
+int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
+	      const u8 *addr)
+{
+	struct qeth_ipaddr *ipaddr;
+	unsigned long flags;
+	int rc = 0;
+
+	ipaddr = qeth_l3_get_addr_buffer(proto);
+	if (ipaddr) {
+		if (proto == QETH_PROT_IPV4) {
+			QETH_CARD_TEXT(card, 2, "addvipa4");
+			memcpy(&ipaddr->u.a4.addr, addr, 4);
+			ipaddr->u.a4.mask = 0;
+		} else if (proto == QETH_PROT_IPV6) {
+			QETH_CARD_TEXT(card, 2, "addvipa6");
+			memcpy(&ipaddr->u.a6.addr, addr, 16);
+			ipaddr->u.a6.pfxlen = 0;
+		}
+		ipaddr->type = QETH_IP_TYPE_VIPA;
+		ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
+		ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
+	} else
+		return -ENOMEM;
+	spin_lock_irqsave(&card->ip_lock, flags);
+	if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
+	    qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
+		rc = -EEXIST;
+	spin_unlock_irqrestore(&card->ip_lock, flags);
+	if (rc) {
+		kfree(ipaddr);
+		return rc;
+	}
+	if (!qeth_l3_add_ip(card, ipaddr))
+		kfree(ipaddr);
+	qeth_l3_set_ip_addr_list(card);
+	return rc;
+}
+
+void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
+	      const u8 *addr)
+{
+	struct qeth_ipaddr *ipaddr;
+
+	ipaddr = qeth_l3_get_addr_buffer(proto);
+	if (ipaddr) {
+		if (proto == QETH_PROT_IPV4) {
+			QETH_CARD_TEXT(card, 2, "delvipa4");
+			memcpy(&ipaddr->u.a4.addr, addr, 4);
+			ipaddr->u.a4.mask = 0;
+		} else if (proto == QETH_PROT_IPV6) {
+			QETH_CARD_TEXT(card, 2, "delvipa6");
+			memcpy(&ipaddr->u.a6.addr, addr, 16);
+			ipaddr->u.a6.pfxlen = 0;
+		}
+		ipaddr->type = QETH_IP_TYPE_VIPA;
+	} else
+		return;
+	if (!qeth_l3_delete_ip(card, ipaddr))
+		kfree(ipaddr);
+	qeth_l3_set_ip_addr_list(card);
+}
+
+/*
+ * proxy ARP related functions
+ */
+int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
+	      const u8 *addr)
+{
+	struct qeth_ipaddr *ipaddr;
+	unsigned long flags;
+	int rc = 0;
+
+	ipaddr = qeth_l3_get_addr_buffer(proto);
+	if (ipaddr) {
+		if (proto == QETH_PROT_IPV4) {
+			QETH_CARD_TEXT(card, 2, "addrxip4");
+			memcpy(&ipaddr->u.a4.addr, addr, 4);
+			ipaddr->u.a4.mask = 0;
+		} else if (proto == QETH_PROT_IPV6) {
+			QETH_CARD_TEXT(card, 2, "addrxip6");
+			memcpy(&ipaddr->u.a6.addr, addr, 16);
+			ipaddr->u.a6.pfxlen = 0;
+		}
+		ipaddr->type = QETH_IP_TYPE_RXIP;
+		ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
+		ipaddr->del_flags = 0;
+	} else
+		return -ENOMEM;
+	spin_lock_irqsave(&card->ip_lock, flags);
+	if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
+	    qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
+		rc = -EEXIST;
+	spin_unlock_irqrestore(&card->ip_lock, flags);
+	if (rc) {
+		kfree(ipaddr);
+		return rc;
+	}
+	if (!qeth_l3_add_ip(card, ipaddr))
+		kfree(ipaddr);
+	qeth_l3_set_ip_addr_list(card);
+	return 0;
+}
+
+void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
+			const u8 *addr)
+{
+	struct qeth_ipaddr *ipaddr;
+
+	ipaddr = qeth_l3_get_addr_buffer(proto);
+	if (ipaddr) {
+		if (proto == QETH_PROT_IPV4) {
+			QETH_CARD_TEXT(card, 2, "addrxip4");
+			memcpy(&ipaddr->u.a4.addr, addr, 4);
+			ipaddr->u.a4.mask = 0;
+		} else if (proto == QETH_PROT_IPV6) {
+			QETH_CARD_TEXT(card, 2, "addrxip6");
+			memcpy(&ipaddr->u.a6.addr, addr, 16);
+			ipaddr->u.a6.pfxlen = 0;
+		}
+		ipaddr->type = QETH_IP_TYPE_RXIP;
+	} else
+		return;
+	if (!qeth_l3_delete_ip(card, ipaddr))
+		kfree(ipaddr);
+	qeth_l3_set_ip_addr_list(card);
+}
+
+static int qeth_l3_register_addr_entry(struct qeth_card *card,
+				struct qeth_ipaddr *addr)
+{
+	char buf[50];
+	int rc = 0;
+	int cnt = 3;
+
+	if (addr->proto == QETH_PROT_IPV4) {
+		QETH_CARD_TEXT(card, 2, "setaddr4");
+		QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
+	} else if (addr->proto == QETH_PROT_IPV6) {
+		QETH_CARD_TEXT(card, 2, "setaddr6");
+		QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
+		QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
+	} else {
+		QETH_CARD_TEXT(card, 2, "setaddr?");
+		QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
+	}
+	do {
+		if (addr->is_multicast)
+			rc =  qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
+		else
+			rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
+					addr->set_flags);
+		if (rc)
+			QETH_CARD_TEXT(card, 2, "failed");
+	} while ((--cnt > 0) && rc);
+	if (rc) {
+		QETH_CARD_TEXT(card, 2, "FAILED");
+		qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
+		dev_warn(&card->gdev->dev,
+			"Registering IP address %s failed\n", buf);
+	}
+	return rc;
+}
+
+static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
+						struct qeth_ipaddr *addr)
+{
+	int rc = 0;
+
+	if (addr->proto == QETH_PROT_IPV4) {
+		QETH_CARD_TEXT(card, 2, "deladdr4");
+		QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
+	} else if (addr->proto == QETH_PROT_IPV6) {
+		QETH_CARD_TEXT(card, 2, "deladdr6");
+		QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
+		QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
+	} else {
+		QETH_CARD_TEXT(card, 2, "deladdr?");
+		QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
+	}
+	if (addr->is_multicast)
+		rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
+	else
+		rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
+					addr->del_flags);
+	if (rc)
+		QETH_CARD_TEXT(card, 2, "failed");
+
+	return rc;
+}
+
+static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
+{
+	if (cast_type == RTN_MULTICAST)
+		return QETH_CAST_MULTICAST;
+	if (cast_type == RTN_BROADCAST)
+		return QETH_CAST_BROADCAST;
+	return QETH_CAST_UNICAST;
+}
+
+static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
+{
+	u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
+	if (cast_type == RTN_MULTICAST)
+		return ct | QETH_CAST_MULTICAST;
+	if (cast_type == RTN_ANYCAST)
+		return ct | QETH_CAST_ANYCAST;
+	if (cast_type == RTN_BROADCAST)
+		return ct | QETH_CAST_BROADCAST;
+	return ct | QETH_CAST_UNICAST;
+}
+
+static int qeth_l3_setadapter_parms(struct qeth_card *card)
+{
+	int rc;
+
+	QETH_DBF_TEXT(SETUP, 2, "setadprm");
+
+	if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
+		dev_info(&card->gdev->dev,
+			"set adapter parameters not supported.\n");
+		QETH_DBF_TEXT(SETUP, 2, " notsupp");
+		return 0;
+	}
+	rc = qeth_query_setadapterparms(card);
+	if (rc) {
+		QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
+			"0x%x\n", dev_name(&card->gdev->dev), rc);
+		return rc;
+	}
+	if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
+		rc = qeth_setadpparms_change_macaddr(card);
+		if (rc)
+			dev_warn(&card->gdev->dev, "Reading the adapter MAC"
+				" address failed\n");
+	}
+
+	return rc;
+}
+
+static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
+			struct qeth_reply *reply, unsigned long data)
+{
+	struct qeth_ipa_cmd *cmd;
+
+	QETH_CARD_TEXT(card, 4, "defadpcb");
+
+	cmd = (struct qeth_ipa_cmd *) data;
+	if (cmd->hdr.return_code == 0) {
+		cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
+		if (cmd->hdr.prot_version == QETH_PROT_IPV4)
+			card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
+		if (cmd->hdr.prot_version == QETH_PROT_IPV6)
+			card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
+	}
+	if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
+	    cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
+		card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
+		QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
+	}
+	if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
+	    cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
+		card->info.tx_csum_mask =
+			cmd->data.setassparms.data.flags_32bit;
+		QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
+	}
+
+	return 0;
+}
+
+static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
+	struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
+	__u16 len, enum qeth_prot_versions prot)
+{
+	struct qeth_cmd_buffer *iob;
+	struct qeth_ipa_cmd *cmd;
+
+	QETH_CARD_TEXT(card, 4, "getasscm");
+	iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
+
+	if (iob) {
+		cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+		cmd->data.setassparms.hdr.assist_no = ipa_func;
+		cmd->data.setassparms.hdr.length = 8 + len;
+		cmd->data.setassparms.hdr.command_code = cmd_code;
+		cmd->data.setassparms.hdr.return_code = 0;
+		cmd->data.setassparms.hdr.seq_no = 0;
+	}
+
+	return iob;
+}
+
+static int qeth_l3_send_setassparms(struct qeth_card *card,
+	struct qeth_cmd_buffer *iob, __u16 len, long data,
+	int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
+		unsigned long),
+	void *reply_param)
+{
+	int rc;
+	struct qeth_ipa_cmd *cmd;
+
+	QETH_CARD_TEXT(card, 4, "sendassp");
+
+	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+	if (len <= sizeof(__u32))
+		cmd->data.setassparms.data.flags_32bit = (__u32) data;
+	else   /* (len > sizeof(__u32)) */
+		memcpy(&cmd->data.setassparms.data, (void *) data, len);
+
+	rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
+	return rc;
+}
+
+#ifdef CONFIG_QETH_IPV6
+static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
+		enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
+{
+	int rc;
+	struct qeth_cmd_buffer *iob;
+
+	QETH_CARD_TEXT(card, 4, "simassp6");
+	iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
+				       0, QETH_PROT_IPV6);
+	if (!iob)
+		return -ENOMEM;
+	rc = qeth_l3_send_setassparms(card, iob, 0, 0,
+				   qeth_l3_default_setassparms_cb, NULL);
+	return rc;
+}
+#endif
+
+static int qeth_l3_send_simple_setassparms(struct qeth_card *card,
+		enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data)
+{
+	int rc;
+	int length = 0;
+	struct qeth_cmd_buffer *iob;
+
+	QETH_CARD_TEXT(card, 4, "simassp4");
+	if (data)
+		length = sizeof(__u32);
+	iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
+				       length, QETH_PROT_IPV4);
+	if (!iob)
+		return -ENOMEM;
+	rc = qeth_l3_send_setassparms(card, iob, length, data,
+				   qeth_l3_default_setassparms_cb, NULL);
+	return rc;
+}
+
+static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
+{
+	int rc;
+
+	QETH_CARD_TEXT(card, 3, "ipaarp");
+
+	if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
+		dev_info(&card->gdev->dev,
+			"ARP processing not supported on %s!\n",
+			QETH_CARD_IFNAME(card));
+		return 0;
+	}
+	rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
+					IPA_CMD_ASS_START, 0);
+	if (rc) {
+		dev_warn(&card->gdev->dev,
+			"Starting ARP processing support for %s failed\n",
+			QETH_CARD_IFNAME(card));
+	}
+	return rc;
+}
+
+static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
+{
+	int rc;
+
+	QETH_CARD_TEXT(card, 3, "ipaipfrg");
+
+	if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
+		dev_info(&card->gdev->dev,
+			"Hardware IP fragmentation not supported on %s\n",
+			QETH_CARD_IFNAME(card));
+		return  -EOPNOTSUPP;
+	}
+
+	rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
+					  IPA_CMD_ASS_START, 0);
+	if (rc) {
+		dev_warn(&card->gdev->dev,
+			"Starting IP fragmentation support for %s failed\n",
+			QETH_CARD_IFNAME(card));
+	} else
+		dev_info(&card->gdev->dev,
+			"Hardware IP fragmentation enabled \n");
+	return rc;
+}
+
+static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
+{
+	int rc;
+
+	QETH_CARD_TEXT(card, 3, "stsrcmac");
+
+	if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
+		dev_info(&card->gdev->dev,
+			"Inbound source MAC-address not supported on %s\n",
+			QETH_CARD_IFNAME(card));
+		return -EOPNOTSUPP;
+	}
+
+	rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC,
+					  IPA_CMD_ASS_START, 0);
+	if (rc)
+		dev_warn(&card->gdev->dev,
+			"Starting source MAC-address support for %s failed\n",
+			QETH_CARD_IFNAME(card));
+	return rc;
+}
+
+static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
+{
+	int rc = 0;
+
+	QETH_CARD_TEXT(card, 3, "strtvlan");
+
+	if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
+		dev_info(&card->gdev->dev,
+			"VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
+		return -EOPNOTSUPP;
+	}
+
+	rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO,
+					  IPA_CMD_ASS_START, 0);
+	if (rc) {
+		dev_warn(&card->gdev->dev,
+			"Starting VLAN support for %s failed\n",
+			QETH_CARD_IFNAME(card));
+	} else {
+		dev_info(&card->gdev->dev, "VLAN enabled\n");
+	}
+	return rc;
+}
+
+static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
+{
+	int rc;
+
+	QETH_CARD_TEXT(card, 3, "stmcast");
+
+	if (!qeth_is_supported(card, IPA_MULTICASTING)) {
+		dev_info(&card->gdev->dev,
+			"Multicast not supported on %s\n",
+			QETH_CARD_IFNAME(card));
+		return -EOPNOTSUPP;
+	}
+
+	rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING,
+					  IPA_CMD_ASS_START, 0);
+	if (rc) {
+		dev_warn(&card->gdev->dev,
+			"Starting multicast support for %s failed\n",
+			QETH_CARD_IFNAME(card));
+	} else {
+		dev_info(&card->gdev->dev, "Multicast enabled\n");
+		card->dev->flags |= IFF_MULTICAST;
+	}
+	return rc;
+}
+
+#ifdef CONFIG_QETH_IPV6
+static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
+{
+	int rc;
+
+	QETH_CARD_TEXT(card, 3, "softipv6");
+
+	if (card->info.type == QETH_CARD_TYPE_IQD)
+		goto out;
+
+	rc = qeth_query_ipassists(card, QETH_PROT_IPV6);
+	if (rc) {
+		dev_err(&card->gdev->dev,
+			"Activating IPv6 support for %s failed\n",
+			QETH_CARD_IFNAME(card));
+		return rc;
+	}
+	rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6,
+					  IPA_CMD_ASS_START, 3);
+	if (rc) {
+		dev_err(&card->gdev->dev,
+			"Activating IPv6 support for %s failed\n",
+			QETH_CARD_IFNAME(card));
+		return rc;
+	}
+	rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
+					       IPA_CMD_ASS_START);
+	if (rc) {
+		dev_err(&card->gdev->dev,
+			"Activating IPv6 support for %s failed\n",
+			 QETH_CARD_IFNAME(card));
+		return rc;
+	}
+	rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
+					       IPA_CMD_ASS_START);
+	if (rc) {
+		dev_warn(&card->gdev->dev,
+			"Enabling the passthrough mode for %s failed\n",
+			QETH_CARD_IFNAME(card));
+		return rc;
+	}
+out:
+	dev_info(&card->gdev->dev, "IPV6 enabled\n");
+	return 0;
+}
+#endif
+
+static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
+{
+	int rc = 0;
+
+	QETH_CARD_TEXT(card, 3, "strtipv6");
+
+	if (!qeth_is_supported(card, IPA_IPV6)) {
+		dev_info(&card->gdev->dev,
+			"IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
+		return 0;
+	}
+#ifdef CONFIG_QETH_IPV6
+	rc = qeth_l3_softsetup_ipv6(card);
+#endif
+	return rc ;
+}
+
+static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
+{
+	int rc;
+
+	QETH_CARD_TEXT(card, 3, "stbrdcst");
+	card->info.broadcast_capable = 0;
+	if (!qeth_is_supported(card, IPA_FILTERING)) {
+		dev_info(&card->gdev->dev,
+			"Broadcast not supported on %s\n",
+			QETH_CARD_IFNAME(card));
+		rc = -EOPNOTSUPP;
+		goto out;
+	}
+	rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
+					  IPA_CMD_ASS_START, 0);
+	if (rc) {
+		dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
+			"%s failed\n", QETH_CARD_IFNAME(card));
+		goto out;
+	}
+
+	rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
+					  IPA_CMD_ASS_CONFIGURE, 1);
+	if (rc) {
+		dev_warn(&card->gdev->dev,
+			"Setting up broadcast filtering for %s failed\n",
+			QETH_CARD_IFNAME(card));
+		goto out;
+	}
+	card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
+	dev_info(&card->gdev->dev, "Broadcast enabled\n");
+	rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
+					  IPA_CMD_ASS_ENABLE, 1);
+	if (rc) {
+		dev_warn(&card->gdev->dev, "Setting up broadcast echo "
+			"filtering for %s failed\n", QETH_CARD_IFNAME(card));
+		goto out;
+	}
+	card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
+out:
+	if (card->info.broadcast_capable)
+		card->dev->flags |= IFF_BROADCAST;
+	else
+		card->dev->flags &= ~IFF_BROADCAST;
+	return rc;
+}
+
+static int qeth_l3_send_checksum_command(struct qeth_card *card)
+{
+	int rc;
+
+	rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
+					  IPA_CMD_ASS_START, 0);
+	if (rc) {
+		dev_warn(&card->gdev->dev, "Starting HW checksumming for %s "
+			"failed, using SW checksumming\n",
+			QETH_CARD_IFNAME(card));
+		return rc;
+	}
+	rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
+					  IPA_CMD_ASS_ENABLE,
+					  card->info.csum_mask);
+	if (rc) {
+		dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s "
+			"failed, using SW checksumming\n",
+			QETH_CARD_IFNAME(card));
+		return rc;
+	}
+	return 0;
+}
+
+static int qeth_l3_set_rx_csum(struct qeth_card *card, int on)
+{
+	int rc = 0;
+
+	if (on) {
+		rc = qeth_l3_send_checksum_command(card);
+		if (rc)
+			return -EIO;
+		dev_info(&card->gdev->dev,
+			"HW Checksumming (inbound) enabled\n");
+	} else {
+		rc = qeth_l3_send_simple_setassparms(card,
+			IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0);
+		if (rc)
+			return -EIO;
+	}
+
+	return 0;
+}
+
+static int qeth_l3_start_ipa_checksum(struct qeth_card *card)
+{
+	QETH_CARD_TEXT(card, 3, "strtcsum");
+
+	if (card->dev->features & NETIF_F_RXCSUM) {
+		rtnl_lock();
+		/* force set_features call */
+		card->dev->features &= ~NETIF_F_RXCSUM;
+		netdev_update_features(card->dev);
+		rtnl_unlock();
+	}
+	return 0;
+}
+
+static int qeth_l3_start_ipa_tx_checksum(struct qeth_card *card)
+{
+	int rc = 0;
+
+	if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
+		return rc;
+	rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
+			  IPA_CMD_ASS_START, 0);
+	if (rc)
+		goto err_out;
+	rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
+			  IPA_CMD_ASS_ENABLE, card->info.tx_csum_mask);
+	if (rc)
+		goto err_out;
+	dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n");
+	return rc;
+err_out:
+	dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s "
+		"failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card));
+	return rc;
+}
+
+static int qeth_l3_start_ipa_tso(struct qeth_card *card)
+{
+	int rc;
+
+	QETH_CARD_TEXT(card, 3, "sttso");
+
+	if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
+		dev_info(&card->gdev->dev,
+			"Outbound TSO not supported on %s\n",
+			QETH_CARD_IFNAME(card));
+		rc = -EOPNOTSUPP;
+	} else {
+		rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
+						IPA_CMD_ASS_START, 0);
+		if (rc)
+			dev_warn(&card->gdev->dev, "Starting outbound TCP "
+				"segmentation offload for %s failed\n",
+				QETH_CARD_IFNAME(card));
+		else
+			dev_info(&card->gdev->dev,
+				"Outbound TSO enabled\n");
+	}
+	if (rc)
+		card->dev->features &= ~NETIF_F_TSO;
+	return rc;
+}
+
+static int qeth_l3_start_ipassists(struct qeth_card *card)
+{
+	QETH_CARD_TEXT(card, 3, "strtipas");
+
+	if (qeth_set_access_ctrl_online(card, 0))
+		return -EIO;
+	qeth_l3_start_ipa_arp_processing(card);	/* go on*/
+	qeth_l3_start_ipa_ip_fragmentation(card);	/* go on*/
+	qeth_l3_start_ipa_source_mac(card);	/* go on*/
+	qeth_l3_start_ipa_vlan(card);		/* go on*/
+	qeth_l3_start_ipa_multicast(card);		/* go on*/
+	qeth_l3_start_ipa_ipv6(card);		/* go on*/
+	qeth_l3_start_ipa_broadcast(card);		/* go on*/
+	qeth_l3_start_ipa_checksum(card);		/* go on*/
+	qeth_l3_start_ipa_tx_checksum(card);
+	qeth_l3_start_ipa_tso(card);		/* go on*/
+	return 0;
+}
+
+static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
+		struct qeth_reply *reply, unsigned long data)
+{
+	struct qeth_ipa_cmd *cmd;
+
+	cmd = (struct qeth_ipa_cmd *) data;
+	if (cmd->hdr.return_code == 0)
+		memcpy(card->dev->dev_addr,
+			cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
+	else
+		eth_random_addr(card->dev->dev_addr);
+
+	return 0;
+}
+
+static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
+{
+	int rc = 0;
+	struct qeth_cmd_buffer *iob;
+	struct qeth_ipa_cmd *cmd;
+
+	QETH_DBF_TEXT(SETUP, 2, "hsrmac");
+
+	iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
+				     QETH_PROT_IPV6);
+	if (!iob)
+		return -ENOMEM;
+	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+	*((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
+			card->info.unique_id;
+
+	rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
+				NULL);
+	return rc;
+}
+
+static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
+		struct qeth_reply *reply, unsigned long data)
+{
+	struct qeth_ipa_cmd *cmd;
+
+	cmd = (struct qeth_ipa_cmd *) data;
+	if (cmd->hdr.return_code == 0)
+		card->info.unique_id = *((__u16 *)
+				&cmd->data.create_destroy_addr.unique_id[6]);
+	else {
+		card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
+					UNIQUE_ID_NOT_BY_CARD;
+		dev_warn(&card->gdev->dev, "The network adapter failed to "
+			"generate a unique ID\n");
+	}
+	return 0;
+}
+
+static int qeth_l3_get_unique_id(struct qeth_card *card)
+{
+	int rc = 0;
+	struct qeth_cmd_buffer *iob;
+	struct qeth_ipa_cmd *cmd;
+
+	QETH_DBF_TEXT(SETUP, 2, "guniqeid");
+
+	if (!qeth_is_supported(card, IPA_IPV6)) {
+		card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
+					UNIQUE_ID_NOT_BY_CARD;
+		return 0;
+	}
+
+	iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
+				     QETH_PROT_IPV6);
+	if (!iob)
+		return -ENOMEM;
+	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+	*((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
+			card->info.unique_id;
+
+	rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
+	return rc;
+}
+
+static int
+qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
+			    unsigned long data)
+{
+	struct qeth_ipa_cmd	   *cmd;
+	__u16 rc;
+
+	QETH_DBF_TEXT(SETUP, 2, "diastrcb");
+
+	cmd = (struct qeth_ipa_cmd *)data;
+	rc = cmd->hdr.return_code;
+	if (rc)
+		QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
+	switch (cmd->data.diagass.action) {
+	case QETH_DIAGS_CMD_TRACE_QUERY:
+		break;
+	case QETH_DIAGS_CMD_TRACE_DISABLE:
+		switch (rc) {
+		case 0:
+		case IPA_RC_INVALID_SUBCMD:
+			card->info.promisc_mode = SET_PROMISC_MODE_OFF;
+			dev_info(&card->gdev->dev, "The HiperSockets network "
+				"traffic analyzer is deactivated\n");
+			break;
+		default:
+			break;
+		}
+		break;
+	case QETH_DIAGS_CMD_TRACE_ENABLE:
+		switch (rc) {
+		case 0:
+			card->info.promisc_mode = SET_PROMISC_MODE_ON;
+			dev_info(&card->gdev->dev, "The HiperSockets network "
+				"traffic analyzer is activated\n");
+			break;
+		case IPA_RC_HARDWARE_AUTH_ERROR:
+			dev_warn(&card->gdev->dev, "The device is not "
+				"authorized to run as a HiperSockets network "
+				"traffic analyzer\n");
+			break;
+		case IPA_RC_TRACE_ALREADY_ACTIVE:
+			dev_warn(&card->gdev->dev, "A HiperSockets "
+				"network traffic analyzer is already "
+				"active in the HiperSockets LAN\n");
+			break;
+		default:
+			break;
+		}
+		break;
+	default:
+		QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
+			cmd->data.diagass.action, QETH_CARD_IFNAME(card));
+	}
+
+	return 0;
+}
+
+static int
+qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
+{
+	struct qeth_cmd_buffer *iob;
+	struct qeth_ipa_cmd    *cmd;
+
+	QETH_DBF_TEXT(SETUP, 2, "diagtrac");
+
+	iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
+	if (!iob)
+		return -ENOMEM;
+	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+	cmd->data.diagass.subcmd_len = 16;
+	cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
+	cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
+	cmd->data.diagass.action = diags_cmd;
+	return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
+}
+
+static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
+				struct net_device *dev)
+{
+	ip_eth_mc_map(ipm, mac);
+}
+
+static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
+{
+	struct qeth_ipaddr *ipm;
+	struct ip_mc_list *im4;
+	char buf[MAX_ADDR_LEN];
+
+	QETH_CARD_TEXT(card, 4, "addmc");
+	for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
+	     im4 = rcu_dereference(im4->next_rcu)) {
+		qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
+		ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
+		if (!ipm)
+			continue;
+		ipm->u.a4.addr = im4->multiaddr;
+		memcpy(ipm->mac, buf, OSA_ADDR_LEN);
+		ipm->is_multicast = 1;
+		if (!qeth_l3_add_ip(card, ipm))
+			kfree(ipm);
+	}
+}
+
+/* called with rcu_read_lock */
+static void qeth_l3_add_vlan_mc(struct qeth_card *card)
+{
+	struct in_device *in_dev;
+	u16 vid;
+
+	QETH_CARD_TEXT(card, 4, "addmcvl");
+	if (!qeth_is_supported(card, IPA_FULL_VLAN))
+		return;
+
+	for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
+		struct net_device *netdev;
+
+		netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
+					      vid);
+		if (netdev == NULL ||
+		    !(netdev->flags & IFF_UP))
+			continue;
+		in_dev = __in_dev_get_rcu(netdev);
+		if (!in_dev)
+			continue;
+		qeth_l3_add_mc(card, in_dev);
+	}
+}
+
+static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
+{
+	struct in_device *in4_dev;
+
+	QETH_CARD_TEXT(card, 4, "chkmcv4");
+	rcu_read_lock();
+	in4_dev = __in_dev_get_rcu(card->dev);
+	if (in4_dev == NULL)
+		goto unlock;
+	qeth_l3_add_mc(card, in4_dev);
+	qeth_l3_add_vlan_mc(card);
+unlock:
+	rcu_read_unlock();
+}
+
+#ifdef CONFIG_QETH_IPV6
+static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
+{
+	struct qeth_ipaddr *ipm;
+	struct ifmcaddr6 *im6;
+	char buf[MAX_ADDR_LEN];
+
+	QETH_CARD_TEXT(card, 4, "addmc6");
+	for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
+		ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
+		ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
+		if (!ipm)
+			continue;
+		ipm->is_multicast = 1;
+		memcpy(ipm->mac, buf, OSA_ADDR_LEN);
+		memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
+		       sizeof(struct in6_addr));
+		if (!qeth_l3_add_ip(card, ipm))
+			kfree(ipm);
+	}
+}
+
+/* called with rcu_read_lock */
+static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
+{
+	struct inet6_dev *in_dev;
+	u16 vid;
+
+	QETH_CARD_TEXT(card, 4, "admc6vl");
+	if (!qeth_is_supported(card, IPA_FULL_VLAN))
+		return;
+
+	for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
+		struct net_device *netdev;
+
+		netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
+					      vid);
+		if (netdev == NULL ||
+		    !(netdev->flags & IFF_UP))
+			continue;
+		in_dev = in6_dev_get(netdev);
+		if (!in_dev)
+			continue;
+		read_lock_bh(&in_dev->lock);
+		qeth_l3_add_mc6(card, in_dev);
+		read_unlock_bh(&in_dev->lock);
+		in6_dev_put(in_dev);
+	}
+}
+
+static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
+{
+	struct inet6_dev *in6_dev;
+
+	QETH_CARD_TEXT(card, 4, "chkmcv6");
+	if (!qeth_is_supported(card, IPA_IPV6))
+		return ;
+	in6_dev = in6_dev_get(card->dev);
+	if (in6_dev == NULL)
+		return;
+	rcu_read_lock();
+	read_lock_bh(&in6_dev->lock);
+	qeth_l3_add_mc6(card, in6_dev);
+	qeth_l3_add_vlan_mc6(card);
+	read_unlock_bh(&in6_dev->lock);
+	rcu_read_unlock();
+	in6_dev_put(in6_dev);
+}
+#endif /* CONFIG_QETH_IPV6 */
+
+static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
+			unsigned short vid)
+{
+	struct in_device *in_dev;
+	struct in_ifaddr *ifa;
+	struct qeth_ipaddr *addr;
+	struct net_device *netdev;
+
+	QETH_CARD_TEXT(card, 4, "frvaddr4");
+
+	netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
+	if (!netdev)
+		return;
+	in_dev = in_dev_get(netdev);
+	if (!in_dev)
+		return;
+	for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
+		addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
+		if (addr) {
+			addr->u.a4.addr = ifa->ifa_address;
+			addr->u.a4.mask = ifa->ifa_mask;
+			addr->type = QETH_IP_TYPE_NORMAL;
+			if (!qeth_l3_delete_ip(card, addr))
+				kfree(addr);
+		}
+	}
+	in_dev_put(in_dev);
+}
+
+static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
+			unsigned short vid)
+{
+#ifdef CONFIG_QETH_IPV6
+	struct inet6_dev *in6_dev;
+	struct inet6_ifaddr *ifa;
+	struct qeth_ipaddr *addr;
+	struct net_device *netdev;
+
+	QETH_CARD_TEXT(card, 4, "frvaddr6");
+
+	netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
+	if (!netdev)
+		return;
+	in6_dev = in6_dev_get(netdev);
+	if (!in6_dev)
+		return;
+	list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
+		addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
+		if (addr) {
+			memcpy(&addr->u.a6.addr, &ifa->addr,
+			       sizeof(struct in6_addr));
+			addr->u.a6.pfxlen = ifa->prefix_len;
+			addr->type = QETH_IP_TYPE_NORMAL;
+			if (!qeth_l3_delete_ip(card, addr))
+				kfree(addr);
+		}
+	}
+	in6_dev_put(in6_dev);
+#endif /* CONFIG_QETH_IPV6 */
+}
+
+static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
+			unsigned short vid)
+{
+	rcu_read_lock();
+	qeth_l3_free_vlan_addresses4(card, vid);
+	qeth_l3_free_vlan_addresses6(card, vid);
+	rcu_read_unlock();
+}
+
+static int qeth_l3_vlan_rx_add_vid(struct net_device *dev,
+				   __be16 proto, u16 vid)
+{
+	struct qeth_card *card = dev->ml_priv;
+
+	set_bit(vid, card->active_vlans);
+	return 0;
+}
+
+static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev,
+				    __be16 proto, u16 vid)
+{
+	struct qeth_card *card = dev->ml_priv;
+	unsigned long flags;
+
+	QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
+	if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
+		QETH_CARD_TEXT(card, 3, "kidREC");
+		return 0;
+	}
+	spin_lock_irqsave(&card->vlanlock, flags);
+	/* unregister IP addresses of vlan device */
+	qeth_l3_free_vlan_addresses(card, vid);
+	clear_bit(vid, card->active_vlans);
+	spin_unlock_irqrestore(&card->vlanlock, flags);
+	qeth_l3_set_multicast_list(card->dev);
+	return 0;
+}
+
+static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
+			struct sk_buff *skb, struct qeth_hdr *hdr,
+			unsigned short *vlan_id)
+{
+	__be16 prot;
+	struct iphdr *ip_hdr;
+	unsigned char tg_addr[MAX_ADDR_LEN];
+	int is_vlan = 0;
+
+	if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
+		prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
+			      ETH_P_IP);
+		switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
+		case QETH_CAST_MULTICAST:
+			switch (prot) {
+#ifdef CONFIG_QETH_IPV6
+			case __constant_htons(ETH_P_IPV6):
+				ndisc_mc_map((struct in6_addr *)
+				     skb->data + 24,
+				     tg_addr, card->dev, 0);
+				break;
+#endif
+			case __constant_htons(ETH_P_IP):
+				ip_hdr = (struct iphdr *)skb->data;
+				ip_eth_mc_map(ip_hdr->daddr, tg_addr);
+				break;
+			default:
+				memcpy(tg_addr, card->dev->broadcast,
+					card->dev->addr_len);
+			}
+			card->stats.multicast++;
+			skb->pkt_type = PACKET_MULTICAST;
+			break;
+		case QETH_CAST_BROADCAST:
+			memcpy(tg_addr, card->dev->broadcast,
+				card->dev->addr_len);
+			card->stats.multicast++;
+			skb->pkt_type = PACKET_BROADCAST;
+			break;
+		case QETH_CAST_UNICAST:
+		case QETH_CAST_ANYCAST:
+		case QETH_CAST_NOCAST:
+		default:
+			if (card->options.sniffer)
+				skb->pkt_type = PACKET_OTHERHOST;
+			else
+				skb->pkt_type = PACKET_HOST;
+			memcpy(tg_addr, card->dev->dev_addr,
+				card->dev->addr_len);
+		}
+		if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
+			card->dev->header_ops->create(skb, card->dev, prot,
+				tg_addr, &hdr->hdr.l3.dest_addr[2],
+				card->dev->addr_len);
+		else
+			card->dev->header_ops->create(skb, card->dev, prot,
+				tg_addr, "FAKELL", card->dev->addr_len);
+	}
+
+	skb->protocol = eth_type_trans(skb, card->dev);
+
+	if (hdr->hdr.l3.ext_flags &
+	    (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
+		*vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
+		 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
+		is_vlan = 1;
+	}
+
+	if (card->dev->features & NETIF_F_RXCSUM) {
+		if ((hdr->hdr.l3.ext_flags &
+		    (QETH_HDR_EXT_CSUM_HDR_REQ |
+		     QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
+		    (QETH_HDR_EXT_CSUM_HDR_REQ |
+		     QETH_HDR_EXT_CSUM_TRANSP_REQ))
+			skb->ip_summed = CHECKSUM_UNNECESSARY;
+		else
+			skb->ip_summed = CHECKSUM_NONE;
+	} else
+		skb->ip_summed = CHECKSUM_NONE;
+
+	return is_vlan;
+}
+
+static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
+				int budget, int *done)
+{
+	int work_done = 0;
+	struct sk_buff *skb;
+	struct qeth_hdr *hdr;
+	__u16 vlan_tag = 0;
+	int is_vlan;
+	unsigned int len;
+	__u16 magic;
+
+	*done = 0;
+	WARN_ON_ONCE(!budget);
+	while (budget) {
+		skb = qeth_core_get_next_skb(card,
+			&card->qdio.in_q->bufs[card->rx.b_index],
+			&card->rx.b_element, &card->rx.e_offset, &hdr);
+		if (!skb) {
+			*done = 1;
+			break;
+		}
+		skb->dev = card->dev;
+		switch (hdr->hdr.l3.id) {
+		case QETH_HEADER_TYPE_LAYER3:
+			magic = *(__u16 *)skb->data;
+			if ((card->info.type == QETH_CARD_TYPE_IQD) &&
+			    (magic == ETH_P_AF_IUCV)) {
+				skb->protocol = ETH_P_AF_IUCV;
+				skb->pkt_type = PACKET_HOST;
+				skb->mac_header = NET_SKB_PAD;
+				skb->dev = card->dev;
+				len = skb->len;
+				card->dev->header_ops->create(skb, card->dev, 0,
+					card->dev->dev_addr, "FAKELL",
+					card->dev->addr_len);
+				netif_receive_skb(skb);
+			} else {
+				is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
+						      &vlan_tag);
+				len = skb->len;
+				if (is_vlan && !card->options.sniffer)
+					__vlan_hwaccel_put_tag(skb,
+						htons(ETH_P_8021Q), vlan_tag);
+				napi_gro_receive(&card->napi, skb);
+			}
+			break;
+		case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
+			skb->pkt_type = PACKET_HOST;
+			skb->protocol = eth_type_trans(skb, skb->dev);
+			len = skb->len;
+			netif_receive_skb(skb);
+			break;
+		default:
+			dev_kfree_skb_any(skb);
+			QETH_CARD_TEXT(card, 3, "inbunkno");
+			QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
+			continue;
+		}
+		work_done++;
+		budget--;
+		card->stats.rx_packets++;
+		card->stats.rx_bytes += len;
+	}
+	return work_done;
+}
+
+static int qeth_l3_poll(struct napi_struct *napi, int budget)
+{
+	struct qeth_card *card = container_of(napi, struct qeth_card, napi);
+	int work_done = 0;
+	struct qeth_qdio_buffer *buffer;
+	int done;
+	int new_budget = budget;
+
+	if (card->options.performance_stats) {
+		card->perf_stats.inbound_cnt++;
+		card->perf_stats.inbound_start_time = qeth_get_micros();
+	}
+
+	while (1) {
+		if (!card->rx.b_count) {
+			card->rx.qdio_err = 0;
+			card->rx.b_count = qdio_get_next_buffers(
+				card->data.ccwdev, 0, &card->rx.b_index,
+				&card->rx.qdio_err);
+			if (card->rx.b_count <= 0) {
+				card->rx.b_count = 0;
+				break;
+			}
+			card->rx.b_element =
+				&card->qdio.in_q->bufs[card->rx.b_index]
+				.buffer->element[0];
+			card->rx.e_offset = 0;
+		}
+
+		while (card->rx.b_count) {
+			buffer = &card->qdio.in_q->bufs[card->rx.b_index];
+			if (!(card->rx.qdio_err &&
+			    qeth_check_qdio_errors(card, buffer->buffer,
+			    card->rx.qdio_err, "qinerr")))
+				work_done += qeth_l3_process_inbound_buffer(
+					card, new_budget, &done);
+			else
+				done = 1;
+
+			if (done) {
+				if (card->options.performance_stats)
+					card->perf_stats.bufs_rec++;
+				qeth_put_buffer_pool_entry(card,
+					buffer->pool_entry);
+				qeth_queue_input_buffer(card, card->rx.b_index);
+				card->rx.b_count--;
+				if (card->rx.b_count) {
+					card->rx.b_index =
+						(card->rx.b_index + 1) %
+						QDIO_MAX_BUFFERS_PER_Q;
+					card->rx.b_element =
+						&card->qdio.in_q
+						->bufs[card->rx.b_index]
+						.buffer->element[0];
+					card->rx.e_offset = 0;
+				}
+			}
+
+			if (work_done >= budget)
+				goto out;
+			else
+				new_budget = budget - work_done;
+		}
+	}
+
+	napi_complete(napi);
+	if (qdio_start_irq(card->data.ccwdev, 0))
+		napi_schedule(&card->napi);
+out:
+	if (card->options.performance_stats)
+		card->perf_stats.inbound_time += qeth_get_micros() -
+			card->perf_stats.inbound_start_time;
+	return work_done;
+}
+
+static int qeth_l3_verify_vlan_dev(struct net_device *dev,
+			struct qeth_card *card)
+{
+	int rc = 0;
+	u16 vid;
+
+	for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
+		struct net_device *netdev;
+
+		rcu_read_lock();
+		netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
+					      vid);
+		rcu_read_unlock();
+		if (netdev == dev) {
+			rc = QETH_VLAN_CARD;
+			break;
+		}
+	}
+
+	if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
+		return 0;
+
+	return rc;
+}
+
+static int qeth_l3_verify_dev(struct net_device *dev)
+{
+	struct qeth_card *card;
+	unsigned long flags;
+	int rc = 0;
+
+	read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
+	list_for_each_entry(card, &qeth_core_card_list.list, list) {
+		if (card->dev == dev) {
+			rc = QETH_REAL_CARD;
+			break;
+		}
+		rc = qeth_l3_verify_vlan_dev(dev, card);
+		if (rc)
+			break;
+	}
+	read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
+
+	return rc;
+}
+
+static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
+{
+	struct qeth_card *card = NULL;
+	int rc;
+
+	rc = qeth_l3_verify_dev(dev);
+	if (rc == QETH_REAL_CARD)
+		card = dev->ml_priv;
+	else if (rc == QETH_VLAN_CARD)
+		card = vlan_dev_real_dev(dev)->ml_priv;
+	if (card && card->options.layer2)
+		card = NULL;
+	if (card)
+		QETH_CARD_TEXT_(card, 4, "%d", rc);
+	return card ;
+}
+
+static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
+{
+	int rc = 0;
+
+	QETH_DBF_TEXT(SETUP, 2, "stopcard");
+	QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
+
+	qeth_set_allowed_threads(card, 0, 1);
+	if (card->options.sniffer &&
+	    (card->info.promisc_mode == SET_PROMISC_MODE_ON))
+		qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
+	if (card->read.state == CH_STATE_UP &&
+	    card->write.state == CH_STATE_UP &&
+	    (card->state == CARD_STATE_UP)) {
+		if (recovery_mode)
+			qeth_l3_stop(card->dev);
+		else {
+			rtnl_lock();
+			dev_close(card->dev);
+			rtnl_unlock();
+		}
+		card->state = CARD_STATE_SOFTSETUP;
+	}
+	if (card->state == CARD_STATE_SOFTSETUP) {
+		qeth_l3_clear_ip_list(card, 1);
+		qeth_clear_ipacmd_list(card);
+		card->state = CARD_STATE_HARDSETUP;
+	}
+	if (card->state == CARD_STATE_HARDSETUP) {
+		qeth_qdio_clear_card(card, 0);
+		qeth_clear_qdio_buffers(card);
+		qeth_clear_working_pool_list(card);
+		card->state = CARD_STATE_DOWN;
+	}
+	if (card->state == CARD_STATE_DOWN) {
+		qeth_clear_cmd_buffers(&card->read);
+		qeth_clear_cmd_buffers(&card->write);
+	}
+	return rc;
+}
+
+/*
+ * test for and Switch promiscuous mode (on or off)
+ *  either for guestlan or HiperSocket Sniffer
+ */
+static void
+qeth_l3_handle_promisc_mode(struct qeth_card *card)
+{
+	struct net_device *dev = card->dev;
+
+	if (((dev->flags & IFF_PROMISC) &&
+	     (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
+	    (!(dev->flags & IFF_PROMISC) &&
+	     (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
+		return;
+
+	if (card->info.guestlan) {		/* Guestlan trace */
+		if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
+			qeth_setadp_promisc_mode(card);
+	} else if (card->options.sniffer &&	/* HiperSockets trace */
+		   qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
+		if (dev->flags & IFF_PROMISC) {
+			QETH_CARD_TEXT(card, 3, "+promisc");
+			qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
+		} else {
+			QETH_CARD_TEXT(card, 3, "-promisc");
+			qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
+		}
+	}
+}
+
+static void qeth_l3_set_multicast_list(struct net_device *dev)
+{
+	struct qeth_card *card = dev->ml_priv;
+
+	QETH_CARD_TEXT(card, 3, "setmulti");
+	if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
+	    (card->state != CARD_STATE_UP))
+		return;
+	if (!card->options.sniffer) {
+		qeth_l3_delete_mc_addresses(card);
+		qeth_l3_add_multicast_ipv4(card);
+#ifdef CONFIG_QETH_IPV6
+		qeth_l3_add_multicast_ipv6(card);
+#endif
+		qeth_l3_set_ip_addr_list(card);
+		if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
+			return;
+	}
+	qeth_l3_handle_promisc_mode(card);
+}
+
+static const char *qeth_l3_arp_get_error_cause(int *rc)
+{
+	switch (*rc) {
+	case QETH_IPA_ARP_RC_FAILED:
+		*rc = -EIO;
+		return "operation failed";
+	case QETH_IPA_ARP_RC_NOTSUPP:
+		*rc = -EOPNOTSUPP;
+		return "operation not supported";
+	case QETH_IPA_ARP_RC_OUT_OF_RANGE:
+		*rc = -EINVAL;
+		return "argument out of range";
+	case QETH_IPA_ARP_RC_Q_NOTSUPP:
+		*rc = -EOPNOTSUPP;
+		return "query operation not supported";
+	case QETH_IPA_ARP_RC_Q_NO_DATA:
+		*rc = -ENOENT;
+		return "no query data available";
+	default:
+		return "unknown error";
+	}
+}
+
+static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
+{
+	int tmp;
+	int rc;
+
+	QETH_CARD_TEXT(card, 3, "arpstnoe");
+
+	/*
+	 * currently GuestLAN only supports the ARP assist function
+	 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
+	 * thus we say EOPNOTSUPP for this ARP function
+	 */
+	if (card->info.guestlan)
+		return -EOPNOTSUPP;
+	if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
+		return -EOPNOTSUPP;
+	}
+	rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
+					  IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
+					  no_entries);
+	if (rc) {
+		tmp = rc;
+		QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
+			"%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
+			qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
+	}
+	return rc;
+}
+
+static __u32 get_arp_entry_size(struct qeth_card *card,
+			struct qeth_arp_query_data *qdata,
+			struct qeth_arp_entrytype *type, __u8 strip_entries)
+{
+	__u32 rc;
+	__u8 is_hsi;
+
+	is_hsi = qdata->reply_bits == 5;
+	if (type->ip == QETHARP_IP_ADDR_V4) {
+		QETH_CARD_TEXT(card, 4, "arpev4");
+		if (strip_entries) {
+			rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
+				sizeof(struct qeth_arp_qi_entry7_short);
+		} else {
+			rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
+				sizeof(struct qeth_arp_qi_entry7);
+		}
+	} else if (type->ip == QETHARP_IP_ADDR_V6) {
+		QETH_CARD_TEXT(card, 4, "arpev6");
+		if (strip_entries) {
+			rc = is_hsi ?
+				sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
+				sizeof(struct qeth_arp_qi_entry7_short_ipv6);
+		} else {
+			rc = is_hsi ?
+				sizeof(struct qeth_arp_qi_entry5_ipv6) :
+				sizeof(struct qeth_arp_qi_entry7_ipv6);
+		}
+	} else {
+		QETH_CARD_TEXT(card, 4, "arpinv");
+		rc = 0;
+	}
+
+	return rc;
+}
+
+static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
+{
+	return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
+		(type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
+}
+
+static int qeth_l3_arp_query_cb(struct qeth_card *card,
+		struct qeth_reply *reply, unsigned long data)
+{
+	struct qeth_ipa_cmd *cmd;
+	struct qeth_arp_query_data *qdata;
+	struct qeth_arp_query_info *qinfo;
+	int i;
+	int e;
+	int entrybytes_done;
+	int stripped_bytes;
+	__u8 do_strip_entries;
+
+	QETH_CARD_TEXT(card, 3, "arpquecb");
+
+	qinfo = (struct qeth_arp_query_info *) reply->param;
+	cmd = (struct qeth_ipa_cmd *) data;
+	QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
+	if (cmd->hdr.return_code) {
+		QETH_CARD_TEXT(card, 4, "arpcberr");
+		QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
+		return 0;
+	}
+	if (cmd->data.setassparms.hdr.return_code) {
+		cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
+		QETH_CARD_TEXT(card, 4, "setaperr");
+		QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
+		return 0;
+	}
+	qdata = &cmd->data.setassparms.data.query_arp;
+	QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
+
+	do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
+	stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
+	entrybytes_done = 0;
+	for (e = 0; e < qdata->no_entries; ++e) {
+		char *cur_entry;
+		__u32 esize;
+		struct qeth_arp_entrytype *etype;
+
+		cur_entry = &qdata->data + entrybytes_done;
+		etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
+		if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
+			QETH_CARD_TEXT(card, 4, "pmis");
+			QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
+			break;
+		}
+		esize = get_arp_entry_size(card, qdata, etype,
+			do_strip_entries);
+		QETH_CARD_TEXT_(card, 5, "esz%i", esize);
+		if (!esize)
+			break;
+
+		if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
+			QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
+			cmd->hdr.return_code = IPA_RC_ENOMEM;
+			goto out_error;
+		}
+
+		memcpy(qinfo->udata + qinfo->udata_offset,
+			&qdata->data + entrybytes_done + stripped_bytes,
+			esize);
+		entrybytes_done += esize + stripped_bytes;
+		qinfo->udata_offset += esize;
+		++qinfo->no_entries;
+	}
+	/* check if all replies received ... */
+	if (cmd->data.setassparms.hdr.seq_no <
+	    cmd->data.setassparms.hdr.number_of_replies)
+		return 1;
+	QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
+	memcpy(qinfo->udata, &qinfo->no_entries, 4);
+	/* keep STRIP_ENTRIES flag so the user program can distinguish
+	 * stripped entries from normal ones */
+	if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
+		qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
+	memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
+	QETH_CARD_TEXT_(card, 4, "rc%i", 0);
+	return 0;
+out_error:
+	i = 0;
+	memcpy(qinfo->udata, &i, 4);
+	return 0;
+}
+
+static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
+		struct qeth_cmd_buffer *iob, int len,
+		int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
+			unsigned long),
+		void *reply_param)
+{
+	QETH_CARD_TEXT(card, 4, "sendarp");
+
+	memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
+	memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
+	       &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
+	return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
+				      reply_cb, reply_param);
+}
+
+static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
+	enum qeth_prot_versions prot,
+	struct qeth_arp_query_info *qinfo)
+{
+	struct qeth_cmd_buffer *iob;
+	struct qeth_ipa_cmd *cmd;
+	int tmp;
+	int rc;
+
+	QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
+
+	iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
+			IPA_CMD_ASS_ARP_QUERY_INFO,
+			sizeof(struct qeth_arp_query_data) - sizeof(char),
+			prot);
+	if (!iob)
+		return -ENOMEM;
+	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+	cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
+	cmd->data.setassparms.data.query_arp.reply_bits = 0;
+	cmd->data.setassparms.data.query_arp.no_entries = 0;
+	rc = qeth_l3_send_ipa_arp_cmd(card, iob,
+			   QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
+			   qeth_l3_arp_query_cb, (void *)qinfo);
+	if (rc) {
+		tmp = rc;
+		QETH_DBF_MESSAGE(2,
+			"Error while querying ARP cache on %s: %s "
+			"(0x%x/%d)\n", QETH_CARD_IFNAME(card),
+			qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
+	}
+
+	return rc;
+}
+
+static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
+{
+	struct qeth_arp_query_info qinfo = {0, };
+	int rc;
+
+	QETH_CARD_TEXT(card, 3, "arpquery");
+
+	if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
+			       IPA_ARP_PROCESSING)) {
+		QETH_CARD_TEXT(card, 3, "arpqnsup");
+		rc = -EOPNOTSUPP;
+		goto out;
+	}
+	/* get size of userspace buffer and mask_bits -> 6 bytes */
+	if (copy_from_user(&qinfo, udata, 6)) {
+		rc = -EFAULT;
+		goto out;
+	}
+	qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
+	if (!qinfo.udata) {
+		rc = -ENOMEM;
+		goto out;
+	}
+	qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
+	rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
+	if (rc) {
+		if (copy_to_user(udata, qinfo.udata, 4))
+			rc = -EFAULT;
+			goto free_and_out;
+	} else {
+#ifdef CONFIG_QETH_IPV6
+		if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
+			/* fails in case of GuestLAN QDIO mode */
+			qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6,
+				&qinfo);
+		}
+#endif
+		if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
+			QETH_CARD_TEXT(card, 4, "qactf");
+			rc = -EFAULT;
+			goto free_and_out;
+		}
+		QETH_CARD_TEXT(card, 4, "qacts");
+	}
+free_and_out:
+	kfree(qinfo.udata);
+out:
+	return rc;
+}
+
+static int qeth_l3_arp_add_entry(struct qeth_card *card,
+				struct qeth_arp_cache_entry *entry)
+{
+	struct qeth_cmd_buffer *iob;
+	char buf[16];
+	int tmp;
+	int rc;
+
+	QETH_CARD_TEXT(card, 3, "arpadent");
+
+	/*
+	 * currently GuestLAN only supports the ARP assist function
+	 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
+	 * thus we say EOPNOTSUPP for this ARP function
+	 */
+	if (card->info.guestlan)
+		return -EOPNOTSUPP;
+	if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
+		return -EOPNOTSUPP;
+	}
+
+	iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
+				       IPA_CMD_ASS_ARP_ADD_ENTRY,
+				       sizeof(struct qeth_arp_cache_entry),
+				       QETH_PROT_IPV4);
+	if (!iob)
+		return -ENOMEM;
+	rc = qeth_l3_send_setassparms(card, iob,
+				   sizeof(struct qeth_arp_cache_entry),
+				   (unsigned long) entry,
+				   qeth_l3_default_setassparms_cb, NULL);
+	if (rc) {
+		tmp = rc;
+		qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
+		QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
+			"on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
+			qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
+	}
+	return rc;
+}
+
+static int qeth_l3_arp_remove_entry(struct qeth_card *card,
+				struct qeth_arp_cache_entry *entry)
+{
+	struct qeth_cmd_buffer *iob;
+	char buf[16] = {0, };
+	int tmp;
+	int rc;
+
+	QETH_CARD_TEXT(card, 3, "arprment");
+
+	/*
+	 * currently GuestLAN only supports the ARP assist function
+	 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
+	 * thus we say EOPNOTSUPP for this ARP function
+	 */
+	if (card->info.guestlan)
+		return -EOPNOTSUPP;
+	if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
+		return -EOPNOTSUPP;
+	}
+	memcpy(buf, entry, 12);
+	iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
+				       IPA_CMD_ASS_ARP_REMOVE_ENTRY,
+				       12,
+				       QETH_PROT_IPV4);
+	if (!iob)
+		return -ENOMEM;
+	rc = qeth_l3_send_setassparms(card, iob,
+				   12, (unsigned long)buf,
+				   qeth_l3_default_setassparms_cb, NULL);
+	if (rc) {
+		tmp = rc;
+		memset(buf, 0, 16);
+		qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
+		QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
+			" on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
+			qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
+	}
+	return rc;
+}
+
+static int qeth_l3_arp_flush_cache(struct qeth_card *card)
+{
+	int rc;
+	int tmp;
+
+	QETH_CARD_TEXT(card, 3, "arpflush");
+
+	/*
+	 * currently GuestLAN only supports the ARP assist function
+	 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
+	 * thus we say EOPNOTSUPP for this ARP function
+	*/
+	if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
+		return -EOPNOTSUPP;
+	if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
+		return -EOPNOTSUPP;
+	}
+	rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
+					  IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
+	if (rc) {
+		tmp = rc;
+		QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
+			"(0x%x/%d)\n", QETH_CARD_IFNAME(card),
+			qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
+	}
+	return rc;
+}
+
+static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+	struct qeth_card *card = dev->ml_priv;
+	struct qeth_arp_cache_entry arp_entry;
+	struct mii_ioctl_data *mii_data;
+	int rc = 0;
+
+	if (!card)
+		return -ENODEV;
+
+	if (!qeth_card_hw_is_reachable(card))
+		return -ENODEV;
+
+	switch (cmd) {
+	case SIOC_QETH_ARP_SET_NO_ENTRIES:
+		if (!capable(CAP_NET_ADMIN)) {
+			rc = -EPERM;
+			break;
+		}
+		rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
+		break;
+	case SIOC_QETH_ARP_QUERY_INFO:
+		if (!capable(CAP_NET_ADMIN)) {
+			rc = -EPERM;
+			break;
+		}
+		rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
+		break;
+	case SIOC_QETH_ARP_ADD_ENTRY:
+		if (!capable(CAP_NET_ADMIN)) {
+			rc = -EPERM;
+			break;
+		}
+		if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
+				   sizeof(struct qeth_arp_cache_entry)))
+			rc = -EFAULT;
+		else
+			rc = qeth_l3_arp_add_entry(card, &arp_entry);
+		break;
+	case SIOC_QETH_ARP_REMOVE_ENTRY:
+		if (!capable(CAP_NET_ADMIN)) {
+			rc = -EPERM;
+			break;
+		}
+		if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
+				   sizeof(struct qeth_arp_cache_entry)))
+			rc = -EFAULT;
+		else
+			rc = qeth_l3_arp_remove_entry(card, &arp_entry);
+		break;
+	case SIOC_QETH_ARP_FLUSH_CACHE:
+		if (!capable(CAP_NET_ADMIN)) {
+			rc = -EPERM;
+			break;
+		}
+		rc = qeth_l3_arp_flush_cache(card);
+		break;
+	case SIOC_QETH_ADP_SET_SNMP_CONTROL:
+		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_OSX) &&
+		    !card->info.guestlan)
+			return 1;
+		return 0;
+		break;
+	case SIOCGMIIPHY:
+		mii_data = if_mii(rq);
+		mii_data->phy_id = 0;
+		break;
+	case SIOCGMIIREG:
+		mii_data = if_mii(rq);
+		if (mii_data->phy_id != 0)
+			rc = -EINVAL;
+		else
+			mii_data->val_out = qeth_mdio_read(dev,
+							mii_data->phy_id,
+							mii_data->reg_num);
+		break;
+	case SIOC_QETH_QUERY_OAT:
+		rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
+		break;
+	default:
+		rc = -EOPNOTSUPP;
+	}
+	if (rc)
+		QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
+	return rc;
+}
+
+int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
+{
+	int cast_type = RTN_UNSPEC;
+	struct neighbour *n = NULL;
+	struct dst_entry *dst;
+
+	rcu_read_lock();
+	dst = skb_dst(skb);
+	if (dst)
+		n = dst_neigh_lookup_skb(dst, skb);
+	if (n) {
+		cast_type = n->type;
+		rcu_read_unlock();
+		neigh_release(n);
+		if ((cast_type == RTN_BROADCAST) ||
+		    (cast_type == RTN_MULTICAST) ||
+		    (cast_type == RTN_ANYCAST))
+			return cast_type;
+		else
+			return RTN_UNSPEC;
+	}
+	rcu_read_unlock();
+
+	/* try something else */
+	if (skb->protocol == ETH_P_IPV6)
+		return (skb_network_header(skb)[24] == 0xff) ?
+				RTN_MULTICAST : 0;
+	else if (skb->protocol == ETH_P_IP)
+		return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
+				RTN_MULTICAST : 0;
+	/* ... */
+	if (!memcmp(skb->data, skb->dev->broadcast, 6))
+		return RTN_BROADCAST;
+	else {
+		u16 hdr_mac;
+
+		hdr_mac = *((u16 *)skb->data);
+		/* tr multicast? */
+		switch (card->info.link_type) {
+		case QETH_LINK_TYPE_HSTR:
+		case QETH_LINK_TYPE_LANE_TR:
+			if ((hdr_mac == QETH_TR_MAC_NC) ||
+			    (hdr_mac == QETH_TR_MAC_C))
+				return RTN_MULTICAST;
+			break;
+		/* eth or so multicast? */
+		default:
+		if ((hdr_mac == QETH_ETH_MAC_V4) ||
+			    (hdr_mac == QETH_ETH_MAC_V6))
+				return RTN_MULTICAST;
+		}
+	}
+	return cast_type;
+}
+
+static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card,
+		struct qeth_hdr *hdr, struct sk_buff *skb)
+{
+	char daddr[16];
+	struct af_iucv_trans_hdr *iucv_hdr;
+
+	skb_pull(skb, 14);
+	card->dev->header_ops->create(skb, card->dev, 0,
+				      card->dev->dev_addr, card->dev->dev_addr,
+				      card->dev->addr_len);
+	skb_pull(skb, 14);
+	iucv_hdr = (struct af_iucv_trans_hdr *)skb->data;
+	memset(hdr, 0, sizeof(struct qeth_hdr));
+	hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
+	hdr->hdr.l3.ext_flags = 0;
+	hdr->hdr.l3.length = skb->len;
+	hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
+	memset(daddr, 0, sizeof(daddr));
+	daddr[0] = 0xfe;
+	daddr[1] = 0x80;
+	memcpy(&daddr[8], iucv_hdr->destUserID, 8);
+	memcpy(hdr->hdr.l3.dest_addr, daddr, 16);
+}
+
+static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
+		struct sk_buff *skb, int ipv, int cast_type)
+{
+	struct dst_entry *dst;
+
+	memset(hdr, 0, sizeof(struct qeth_hdr));
+	hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
+	hdr->hdr.l3.ext_flags = 0;
+
+	/*
+	 * before we're going to overwrite this location with next hop ip.
+	 * v6 uses passthrough, v4 sets the tag in the QDIO header.
+	 */
+	if (skb_vlan_tag_present(skb)) {
+		if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
+			hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
+		else
+			hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
+		hdr->hdr.l3.vlan_id = skb_vlan_tag_get(skb);
+	}
+
+	hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
+
+	rcu_read_lock();
+	dst = skb_dst(skb);
+	if (ipv == 4) {
+		struct rtable *rt = (struct rtable *) dst;
+		__be32 *pkey = &ip_hdr(skb)->daddr;
+
+		if (rt->rt_gateway)
+			pkey = &rt->rt_gateway;
+
+		/* IPv4 */
+		hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
+		memset(hdr->hdr.l3.dest_addr, 0, 12);
+		*((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey;
+	} else if (ipv == 6) {
+		struct rt6_info *rt = (struct rt6_info *) dst;
+		struct in6_addr *pkey = &ipv6_hdr(skb)->daddr;
+
+		if (!ipv6_addr_any(&rt->rt6i_gateway))
+			pkey = &rt->rt6i_gateway;
+
+		/* IPv6 */
+		hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
+		if (card->info.type == QETH_CARD_TYPE_IQD)
+			hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
+		memcpy(hdr->hdr.l3.dest_addr, pkey, 16);
+	} else {
+		if (!memcmp(skb->data + sizeof(struct qeth_hdr),
+			    skb->dev->broadcast, 6)) {
+			/* broadcast? */
+			hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
+						QETH_HDR_PASSTHRU;
+		} else {
+			hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
+				QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
+				QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
+		}
+	}
+	rcu_read_unlock();
+}
+
+static inline void qeth_l3_hdr_csum(struct qeth_card *card,
+		struct qeth_hdr *hdr, struct sk_buff *skb)
+{
+	struct iphdr *iph = ip_hdr(skb);
+
+	/* tcph->check contains already the pseudo hdr checksum
+	 * so just set the header flags
+	 */
+	if (iph->protocol == IPPROTO_UDP)
+		hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
+	hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
+		QETH_HDR_EXT_CSUM_HDR_REQ;
+	iph->check = 0;
+	if (card->options.performance_stats)
+		card->perf_stats.tx_csum++;
+}
+
+static void qeth_tso_fill_header(struct qeth_card *card,
+		struct qeth_hdr *qhdr, struct sk_buff *skb)
+{
+	struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
+	struct tcphdr *tcph = tcp_hdr(skb);
+	struct iphdr *iph = ip_hdr(skb);
+	struct ipv6hdr *ip6h = ipv6_hdr(skb);
+
+	/*fix header to TSO values ...*/
+	hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
+	hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
+	/*set values which are fix for the first approach ...*/
+	hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
+	hdr->ext.imb_hdr_no  = 1;
+	hdr->ext.hdr_type    = 1;
+	hdr->ext.hdr_version = 1;
+	hdr->ext.hdr_len     = 28;
+	/*insert non-fix values */
+	hdr->ext.mss = skb_shinfo(skb)->gso_size;
+	hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
+	hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
+				       sizeof(struct qeth_hdr_tso));
+	tcph->check = 0;
+	if (skb->protocol == ETH_P_IPV6) {
+		ip6h->payload_len = 0;
+		tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
+					       0, IPPROTO_TCP, 0);
+	} else {
+		/*OSA want us to set these values ...*/
+		tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
+					 0, IPPROTO_TCP, 0);
+		iph->tot_len = 0;
+		iph->check = 0;
+	}
+}
+
+static inline int qeth_l3_tso_elements(struct sk_buff *skb)
+{
+	unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
+		tcp_hdr(skb)->doff * 4;
+	int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
+	int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
+
+	elements += qeth_get_elements_for_frags(skb);
+
+	return elements;
+}
+
+static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	int rc;
+	u16 *tag;
+	struct qeth_hdr *hdr = NULL;
+	int elements_needed = 0;
+	int elems;
+	struct qeth_card *card = dev->ml_priv;
+	struct sk_buff *new_skb = NULL;
+	int ipv = qeth_get_ip_version(skb);
+	int cast_type = qeth_l3_get_cast_type(card, skb);
+	struct qeth_qdio_out_q *queue =
+		card->qdio.out_qs[card->qdio.do_prio_queueing
+			|| (cast_type && card->info.is_multicast_different) ?
+			qeth_get_priority_queue(card, skb, ipv, cast_type) :
+			card->qdio.default_out_queue];
+	int tx_bytes = skb->len;
+	bool large_send;
+	int data_offset = -1;
+	int nr_frags;
+
+	if (((card->info.type == QETH_CARD_TYPE_IQD) &&
+	     (((card->options.cq != QETH_CQ_ENABLED) && !ipv) ||
+	      ((card->options.cq == QETH_CQ_ENABLED) &&
+	       (skb->protocol != ETH_P_AF_IUCV)))) ||
+	    card->options.sniffer)
+			goto tx_drop;
+
+	if ((card->state != CARD_STATE_UP) || !card->lan_online) {
+		card->stats.tx_carrier_errors++;
+		goto tx_drop;
+	}
+
+	if ((cast_type == RTN_BROADCAST) &&
+	    (card->info.broadcast_capable == 0))
+		goto tx_drop;
+
+	if (card->options.performance_stats) {
+		card->perf_stats.outbound_cnt++;
+		card->perf_stats.outbound_start_time = qeth_get_micros();
+	}
+
+	large_send = skb_is_gso(skb);
+
+	if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
+	    (skb_shinfo(skb)->nr_frags == 0)) {
+		new_skb = skb;
+		if (new_skb->protocol == ETH_P_AF_IUCV)
+			data_offset = 0;
+		else
+			data_offset = ETH_HLEN;
+		hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
+		if (!hdr)
+			goto tx_drop;
+		elements_needed++;
+	} else {
+		/* create a clone with writeable headroom */
+		new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
+					+ VLAN_HLEN);
+		if (!new_skb)
+			goto tx_drop;
+	}
+
+	if (card->info.type == QETH_CARD_TYPE_IQD) {
+		if (data_offset < 0)
+			skb_pull(new_skb, ETH_HLEN);
+	} else {
+		if (ipv == 4) {
+			skb_pull(new_skb, ETH_HLEN);
+		}
+
+		if (ipv != 4 && skb_vlan_tag_present(new_skb)) {
+			skb_push(new_skb, VLAN_HLEN);
+			skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
+			skb_copy_to_linear_data_offset(new_skb, 4,
+				new_skb->data + 8, 4);
+			skb_copy_to_linear_data_offset(new_skb, 8,
+				new_skb->data + 12, 4);
+			tag = (u16 *)(new_skb->data + 12);
+			*tag = __constant_htons(ETH_P_8021Q);
+			*(tag + 1) = htons(skb_vlan_tag_get(new_skb));
+		}
+	}
+
+	netif_stop_queue(dev);
+
+	/* fix hardware limitation: as long as we do not have sbal
+	 * chaining we can not send long frag lists
+	 */
+	if (large_send) {
+		if (qeth_l3_tso_elements(new_skb) + 1 > 16) {
+			if (skb_linearize(new_skb))
+				goto tx_drop;
+			if (card->options.performance_stats)
+				card->perf_stats.tx_lin++;
+		}
+	}
+
+	if (large_send && (cast_type == RTN_UNSPEC)) {
+		hdr = (struct qeth_hdr *)skb_push(new_skb,
+						sizeof(struct qeth_hdr_tso));
+		memset(hdr, 0, sizeof(struct qeth_hdr_tso));
+		qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
+		qeth_tso_fill_header(card, hdr, new_skb);
+		elements_needed++;
+	} else {
+		if (data_offset < 0) {
+			hdr = (struct qeth_hdr *)skb_push(new_skb,
+						sizeof(struct qeth_hdr));
+			qeth_l3_fill_header(card, hdr, new_skb, ipv,
+						cast_type);
+		} else {
+			if (new_skb->protocol == ETH_P_AF_IUCV)
+				qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb);
+			else {
+				qeth_l3_fill_header(card, hdr, new_skb, ipv,
+							cast_type);
+				hdr->hdr.l3.length = new_skb->len - data_offset;
+			}
+		}
+
+		if (skb->ip_summed == CHECKSUM_PARTIAL)
+			qeth_l3_hdr_csum(card, hdr, new_skb);
+	}
+
+	elems = qeth_get_elements_no(card, new_skb, elements_needed);
+	if (!elems) {
+		if (data_offset >= 0)
+			kmem_cache_free(qeth_core_header_cache, hdr);
+		goto tx_drop;
+	}
+	elements_needed += elems;
+	nr_frags = skb_shinfo(new_skb)->nr_frags;
+
+	if (card->info.type != QETH_CARD_TYPE_IQD) {
+		int len;
+		if (large_send)
+			len = ((unsigned long)tcp_hdr(new_skb) +
+				tcp_hdr(new_skb)->doff * 4) -
+				(unsigned long)new_skb->data;
+		else
+			len = sizeof(struct qeth_hdr_layer3);
+
+		if (qeth_hdr_chk_and_bounce(new_skb, &hdr, len))
+			goto tx_drop;
+		rc = qeth_do_send_packet(card, queue, new_skb, hdr,
+					 elements_needed);
+	} else
+		rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
+					elements_needed, data_offset, 0);
+
+	if (!rc) {
+		card->stats.tx_packets++;
+		card->stats.tx_bytes += tx_bytes;
+		if (new_skb != skb)
+			dev_kfree_skb_any(skb);
+		if (card->options.performance_stats) {
+			if (large_send) {
+				card->perf_stats.large_send_bytes += tx_bytes;
+				card->perf_stats.large_send_cnt++;
+			}
+			if (nr_frags) {
+				card->perf_stats.sg_skbs_sent++;
+				/* nr_frags + skb->data */
+				card->perf_stats.sg_frags_sent += nr_frags + 1;
+			}
+		}
+		rc = NETDEV_TX_OK;
+	} else {
+		if (data_offset >= 0)
+			kmem_cache_free(qeth_core_header_cache, hdr);
+
+		if (rc == -EBUSY) {
+			if (new_skb != skb)
+				dev_kfree_skb_any(new_skb);
+			return NETDEV_TX_BUSY;
+		} else
+			goto tx_drop;
+	}
+
+	netif_wake_queue(dev);
+	if (card->options.performance_stats)
+		card->perf_stats.outbound_time += qeth_get_micros() -
+			card->perf_stats.outbound_start_time;
+	return rc;
+
+tx_drop:
+	card->stats.tx_dropped++;
+	card->stats.tx_errors++;
+	if ((new_skb != skb) && new_skb)
+		dev_kfree_skb_any(new_skb);
+	dev_kfree_skb_any(skb);
+	netif_wake_queue(dev);
+	return NETDEV_TX_OK;
+}
+
+static int __qeth_l3_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;
+	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);
+		napi_schedule(&card->napi);
+	} else
+		rc = -EIO;
+	return rc;
+}
+
+static int qeth_l3_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_l3_open(dev);
+}
+
+static int qeth_l3_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 netdev_features_t qeth_l3_fix_features(struct net_device *dev,
+	netdev_features_t features)
+{
+	struct qeth_card *card = dev->ml_priv;
+
+	if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
+		features &= ~NETIF_F_IP_CSUM;
+	if (!qeth_is_supported(card, IPA_OUTBOUND_TSO))
+		features &= ~NETIF_F_TSO;
+	if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
+		features &= ~NETIF_F_RXCSUM;
+
+	return features;
+}
+
+static int qeth_l3_set_features(struct net_device *dev,
+	netdev_features_t features)
+{
+	struct qeth_card *card = dev->ml_priv;
+	u32 changed = dev->features ^ features;
+	int err;
+
+	if (!(changed & NETIF_F_RXCSUM))
+		return 0;
+
+	if (card->state == CARD_STATE_DOWN ||
+	    card->state == CARD_STATE_RECOVER)
+		return 0;
+
+	err = qeth_l3_set_rx_csum(card, features & NETIF_F_RXCSUM);
+	if (err)
+		dev->features = features ^ NETIF_F_RXCSUM;
+
+	return err;
+}
+
+static const struct ethtool_ops qeth_l3_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_settings = qeth_core_ethtool_get_settings,
+};
+
+/*
+ * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
+ * NOARP on the netdevice is no option because it also turns off neighbor
+ * solicitation. For IPv4 we install a neighbor_setup function. We don't want
+ * arp resolution but we want the hard header (packet socket will work
+ * e.g. tcpdump)
+ */
+static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
+{
+	n->nud_state = NUD_NOARP;
+	memcpy(n->ha, "FAKELL", 6);
+	n->output = n->ops->connected_output;
+	return 0;
+}
+
+static int
+qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
+{
+	if (np->tbl->family == AF_INET)
+		np->neigh_setup = qeth_l3_neigh_setup_noarp;
+
+	return 0;
+}
+
+static const struct net_device_ops qeth_l3_netdev_ops = {
+	.ndo_open		= qeth_l3_open,
+	.ndo_stop		= qeth_l3_stop,
+	.ndo_get_stats		= qeth_get_stats,
+	.ndo_start_xmit		= qeth_l3_hard_start_xmit,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_rx_mode	= qeth_l3_set_multicast_list,
+	.ndo_do_ioctl		= qeth_l3_do_ioctl,
+	.ndo_change_mtu		= qeth_change_mtu,
+	.ndo_fix_features	= qeth_l3_fix_features,
+	.ndo_set_features	= qeth_l3_set_features,
+	.ndo_vlan_rx_add_vid	= qeth_l3_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid   = qeth_l3_vlan_rx_kill_vid,
+	.ndo_tx_timeout		= qeth_tx_timeout,
+};
+
+static const struct net_device_ops qeth_l3_osa_netdev_ops = {
+	.ndo_open		= qeth_l3_open,
+	.ndo_stop		= qeth_l3_stop,
+	.ndo_get_stats		= qeth_get_stats,
+	.ndo_start_xmit		= qeth_l3_hard_start_xmit,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_rx_mode	= qeth_l3_set_multicast_list,
+	.ndo_do_ioctl		= qeth_l3_do_ioctl,
+	.ndo_change_mtu		= qeth_change_mtu,
+	.ndo_fix_features	= qeth_l3_fix_features,
+	.ndo_set_features	= qeth_l3_set_features,
+	.ndo_vlan_rx_add_vid	= qeth_l3_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid   = qeth_l3_vlan_rx_kill_vid,
+	.ndo_tx_timeout		= qeth_tx_timeout,
+	.ndo_neigh_setup	= qeth_l3_neigh_setup,
+};
+
+static int qeth_l3_setup_netdev(struct qeth_card *card)
+{
+	int rc;
+
+	if (card->info.type == QETH_CARD_TYPE_OSD ||
+	    card->info.type == QETH_CARD_TYPE_OSX) {
+		if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
+		    (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
+			pr_info("qeth_l3: ignoring TR device\n");
+			return -ENODEV;
+		} else {
+			card->dev = alloc_etherdev(0);
+			if (!card->dev)
+				return -ENODEV;
+			card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
+
+			/*IPv6 address autoconfiguration stuff*/
+			qeth_l3_get_unique_id(card);
+			if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
+				card->dev->dev_id = card->info.unique_id &
+							 0xffff;
+			if (!card->info.guestlan) {
+				card->dev->hw_features = NETIF_F_SG |
+					NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
+					NETIF_F_TSO;
+				card->dev->features = NETIF_F_RXCSUM;
+			}
+		}
+	} else if (card->info.type == QETH_CARD_TYPE_IQD) {
+		card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
+					 ether_setup);
+		if (!card->dev)
+			return -ENODEV;
+		card->dev->flags |= IFF_NOARP;
+		card->dev->netdev_ops = &qeth_l3_netdev_ops;
+		rc = qeth_l3_iqd_read_initial_mac(card);
+		if (rc)
+			return rc;
+		if (card->options.hsuid[0])
+			memcpy(card->dev->perm_addr, card->options.hsuid, 9);
+	} else
+		return -ENODEV;
+
+	card->dev->ml_priv = card;
+	card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
+	card->dev->mtu = card->info.initial_mtu;
+	card->dev->ethtool_ops = &qeth_l3_ethtool_ops;
+	card->dev->features |=	NETIF_F_HW_VLAN_CTAG_TX |
+				NETIF_F_HW_VLAN_CTAG_RX |
+				NETIF_F_HW_VLAN_CTAG_FILTER;
+	netif_keep_dst(card->dev);
+	card->dev->gso_max_size = 15 * PAGE_SIZE;
+
+	SET_NETDEV_DEV(card->dev, &card->gdev->dev);
+	netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
+	return register_netdev(card->dev);
+}
+
+static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
+{
+	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+
+	qeth_l3_create_device_attributes(&gdev->dev);
+	card->options.layer2 = 0;
+	card->info.hwtrap = 0;
+	return 0;
+}
+
+static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
+{
+	struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
+
+	qeth_l3_remove_device_attributes(&cgdev->dev);
+
+	qeth_set_allowed_threads(card, 0, 1);
+	wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
+
+	if (cgdev->state == CCWGROUP_ONLINE)
+		qeth_l3_set_offline(cgdev);
+
+	if (card->dev) {
+		unregister_netdev(card->dev);
+		card->dev = NULL;
+	}
+
+	qeth_l3_clear_ip_list(card, 0);
+	qeth_l3_clear_ipato_list(card);
+	return;
+}
+
+static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
+{
+	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	int rc = 0;
+	enum qeth_card_states recover_flag;
+
+	mutex_lock(&card->discipline_mutex);
+	mutex_lock(&card->conf_mutex);
+	QETH_DBF_TEXT(SETUP, 2, "setonlin");
+	QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
+
+	recover_flag = card->state;
+	rc = qeth_core_hardsetup_card(card);
+	if (rc) {
+		QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
+		rc = -ENODEV;
+		goto out_remove;
+	}
+
+	if (!card->dev && qeth_l3_setup_netdev(card)) {
+		rc = -ENODEV;
+		goto out_remove;
+	}
+
+	if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
+		if (card->info.hwtrap &&
+		    qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
+			card->info.hwtrap = 0;
+	} else
+		card->info.hwtrap = 0;
+
+	card->state = CARD_STATE_HARDSETUP;
+	memset(&card->rx, 0, sizeof(struct qeth_rx));
+	qeth_print_status_message(card);
+
+	/* softsetup */
+	QETH_DBF_TEXT(SETUP, 2, "softsetp");
+
+	rc = qeth_send_startlan(card);
+	if (rc) {
+		QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
+		if (rc == 0xe080) {
+			dev_warn(&card->gdev->dev,
+				"The LAN is offline\n");
+			card->lan_online = 0;
+			goto contin;
+		}
+		rc = -ENODEV;
+		goto out_remove;
+	} else
+		card->lan_online = 1;
+
+contin:
+	rc = qeth_l3_setadapter_parms(card);
+	if (rc)
+		QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
+	if (!card->options.sniffer) {
+		rc = qeth_l3_start_ipassists(card);
+		if (rc) {
+			QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
+			goto out_remove;
+		}
+		rc = qeth_l3_setrouting_v4(card);
+		if (rc)
+			QETH_DBF_TEXT_(SETUP, 2, "4err%04x", rc);
+		rc = qeth_l3_setrouting_v6(card);
+		if (rc)
+			QETH_DBF_TEXT_(SETUP, 2, "5err%04x", rc);
+	}
+	netif_tx_disable(card->dev);
+
+	rc = qeth_init_qdio_queues(card);
+	if (rc) {
+		QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
+		rc = -ENODEV;
+		goto out_remove;
+	}
+	card->state = CARD_STATE_SOFTSETUP;
+
+	qeth_set_allowed_threads(card, 0xffffffff, 0);
+	qeth_l3_set_ip_addr_list(card);
+	if (card->lan_online)
+		netif_carrier_on(card->dev);
+	else
+		netif_carrier_off(card->dev);
+	if (recover_flag == CARD_STATE_RECOVER) {
+		rtnl_lock();
+		if (recovery_mode)
+			__qeth_l3_open(card->dev);
+		else
+			dev_open(card->dev);
+		qeth_l3_set_multicast_list(card->dev);
+		rtnl_unlock();
+	}
+	qeth_trace_features(card);
+	/* let user_space know that device is online */
+	kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
+	mutex_unlock(&card->conf_mutex);
+	mutex_unlock(&card->discipline_mutex);
+	return 0;
+out_remove:
+	qeth_l3_stop_card(card, 0);
+	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;
+	mutex_unlock(&card->conf_mutex);
+	mutex_unlock(&card->discipline_mutex);
+	return rc;
+}
+
+static int qeth_l3_set_online(struct ccwgroup_device *gdev)
+{
+	return __qeth_l3_set_online(gdev, 0);
+}
+
+static int __qeth_l3_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 *));
+
+	if (card->dev && netif_carrier_ok(card->dev))
+		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_l3_stop_card(card, recovery_mode);
+	if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) {
+		rtnl_lock();
+		call_netdevice_notifiers(NETDEV_REBOOT, card->dev);
+		rtnl_unlock();
+	}
+	rc  = ccw_device_set_offline(CARD_DDEV(card));
+	rc2 = ccw_device_set_offline(CARD_WDEV(card));
+	rc3 = ccw_device_set_offline(CARD_RDEV(card));
+	if (!rc)
+		rc = (rc2) ? rc2 : rc3;
+	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);
+	mutex_unlock(&card->discipline_mutex);
+	return 0;
+}
+
+static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
+{
+	return __qeth_l3_set_offline(cgdev, 0);
+}
+
+static int qeth_l3_recover(void *ptr)
+{
+	struct qeth_card *card;
+	int rc = 0;
+
+	card = (struct qeth_card *) ptr;
+	QETH_CARD_TEXT(card, 2, "recover1");
+	QETH_CARD_HEX(card, 2, &card, sizeof(void *));
+	if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
+		return 0;
+	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_l3_set_offline(card->gdev, 1);
+	rc = __qeth_l3_set_online(card->gdev, 1);
+	if (!rc)
+		dev_info(&card->gdev->dev,
+			"Device successfully recovered!\n");
+	else {
+		qeth_close_dev(card);
+		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;
+}
+
+static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
+{
+	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	qeth_set_allowed_threads(card, 0, 1);
+	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);
+	qdio_free(CARD_DDEV(card));
+}
+
+static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
+{
+	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+
+	if (card->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_l3_set_offline(card->gdev, 1);
+	} else
+		__qeth_l3_set_offline(card->gdev, 0);
+	return 0;
+}
+
+static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
+{
+	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	int rc = 0;
+
+	if (gdev->state == CCWGROUP_OFFLINE)
+		goto out;
+
+	if (card->state == CARD_STATE_RECOVER) {
+		rc = __qeth_l3_set_online(card->gdev, 1);
+		if (rc) {
+			rtnl_lock();
+			dev_close(card->dev);
+			rtnl_unlock();
+		}
+	} else
+		rc = __qeth_l3_set_online(card->gdev, 0);
+out:
+	qeth_set_allowed_threads(card, 0xffffffff, 0);
+	if (card->dev)
+		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");
+	return rc;
+}
+
+/* Returns zero if the command is successfully "consumed" */
+static int qeth_l3_control_event(struct qeth_card *card,
+					struct qeth_ipa_cmd *cmd)
+{
+	return 1;
+}
+
+struct qeth_discipline qeth_l3_discipline = {
+	.start_poll = qeth_qdio_start_poll,
+	.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
+	.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
+	.recover = qeth_l3_recover,
+	.setup = qeth_l3_probe_device,
+	.remove = qeth_l3_remove_device,
+	.set_online = qeth_l3_set_online,
+	.set_offline = qeth_l3_set_offline,
+	.shutdown = qeth_l3_shutdown,
+	.freeze = qeth_l3_pm_suspend,
+	.thaw = qeth_l3_pm_resume,
+	.restore = qeth_l3_pm_resume,
+	.control_event_handler = qeth_l3_control_event,
+};
+EXPORT_SYMBOL_GPL(qeth_l3_discipline);
+
+static int qeth_l3_ip_event(struct notifier_block *this,
+			    unsigned long event, void *ptr)
+{
+	struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
+	struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
+	struct qeth_ipaddr *addr;
+	struct qeth_card *card;
+
+	if (dev_net(dev) != &init_net)
+		return NOTIFY_DONE;
+
+	card = qeth_l3_get_card_from_dev(dev);
+	if (!card)
+		return NOTIFY_DONE;
+	QETH_CARD_TEXT(card, 3, "ipevent");
+
+	addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
+	if (addr != NULL) {
+		addr->u.a4.addr = ifa->ifa_address;
+		addr->u.a4.mask = ifa->ifa_mask;
+		addr->type = QETH_IP_TYPE_NORMAL;
+	} else
+		goto out;
+
+	switch (event) {
+	case NETDEV_UP:
+		if (!qeth_l3_add_ip(card, addr))
+			kfree(addr);
+		break;
+	case NETDEV_DOWN:
+		if (!qeth_l3_delete_ip(card, addr))
+			kfree(addr);
+		break;
+	default:
+		break;
+	}
+	qeth_l3_set_ip_addr_list(card);
+out:
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block qeth_l3_ip_notifier = {
+	qeth_l3_ip_event,
+	NULL,
+};
+
+#ifdef CONFIG_QETH_IPV6
+/**
+ * IPv6 event handler
+ */
+static int qeth_l3_ip6_event(struct notifier_block *this,
+			     unsigned long event, void *ptr)
+{
+	struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
+	struct net_device *dev = (struct net_device *)ifa->idev->dev;
+	struct qeth_ipaddr *addr;
+	struct qeth_card *card;
+
+	card = qeth_l3_get_card_from_dev(dev);
+	if (!card)
+		return NOTIFY_DONE;
+	QETH_CARD_TEXT(card, 3, "ip6event");
+	if (!qeth_is_supported(card, IPA_IPV6))
+		return NOTIFY_DONE;
+
+	addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
+	if (addr != NULL) {
+		memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
+		addr->u.a6.pfxlen = ifa->prefix_len;
+		addr->type = QETH_IP_TYPE_NORMAL;
+	} else
+		goto out;
+
+	switch (event) {
+	case NETDEV_UP:
+		if (!qeth_l3_add_ip(card, addr))
+			kfree(addr);
+		break;
+	case NETDEV_DOWN:
+		if (!qeth_l3_delete_ip(card, addr))
+			kfree(addr);
+		break;
+	default:
+		break;
+	}
+	qeth_l3_set_ip_addr_list(card);
+out:
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block qeth_l3_ip6_notifier = {
+	qeth_l3_ip6_event,
+	NULL,
+};
+#endif
+
+static int qeth_l3_register_notifiers(void)
+{
+	int rc;
+
+	QETH_DBF_TEXT(SETUP, 5, "regnotif");
+	rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
+	if (rc)
+		return rc;
+#ifdef CONFIG_QETH_IPV6
+	rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
+	if (rc) {
+		unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
+		return rc;
+	}
+#else
+	pr_warning("There is no IPv6 support for the layer 3 discipline\n");
+#endif
+	return 0;
+}
+
+static void qeth_l3_unregister_notifiers(void)
+{
+
+	QETH_DBF_TEXT(SETUP, 5, "unregnot");
+	WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
+#ifdef CONFIG_QETH_IPV6
+	WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
+#endif /* QETH_IPV6 */
+}
+
+static int __init qeth_l3_init(void)
+{
+	int rc = 0;
+
+	pr_info("register layer 3 discipline\n");
+	rc = qeth_l3_register_notifiers();
+	return rc;
+}
+
+static void __exit qeth_l3_exit(void)
+{
+	qeth_l3_unregister_notifiers();
+	pr_info("unregister layer 3 discipline\n");
+}
+
+module_init(qeth_l3_init);
+module_exit(qeth_l3_exit);
+MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
+MODULE_DESCRIPTION("qeth layer 3 discipline");
+MODULE_LICENSE("GPL");