ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/s390/net/qeth_l3_main.c b/marvell/linux/drivers/s390/net/qeth_l3_main.c
new file mode 100644
index 0000000..fe2bea2
--- /dev/null
+++ b/marvell/linux/drivers/s390/net/qeth_l3_main.c
@@ -0,0 +1,2657 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * 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/ip.h>
+#include <linux/in.h>
+#include <linux/ipv6.h>
+#include <linux/inetdevice.h>
+#include <linux/igmp.h>
+#include <linux/slab.h>
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <linux/skbuff.h>
+
+#include <net/ip.h>
+#include <net/arp.h>
+#include <net/route.h>
+#include <net/ipv6.h>
+#include <net/ip6_route.h>
+#include <net/iucv/af_iucv.h>
+#include <linux/hashtable.h>
+
+#include "qeth_l3.h"
+
+
+static int qeth_l3_set_offline(struct ccwgroup_device *);
+static void qeth_l3_set_rx_mode(struct net_device *dev);
+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 void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
+{
+ sprintf(buf, "%pI4", addr);
+}
+
+static void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
+{
+ sprintf(buf, "%pI6", addr);
+}
+
+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);
+}
+
+static struct qeth_ipaddr *qeth_l3_get_addr_buffer(enum qeth_prot_versions prot)
+{
+ struct qeth_ipaddr *addr = kmalloc(sizeof(*addr), GFP_ATOMIC);
+
+ if (addr)
+ qeth_l3_init_ipaddr(addr, QETH_IP_TYPE_NORMAL, prot);
+ return addr;
+}
+
+static struct qeth_ipaddr *qeth_l3_find_addr_by_ip(struct qeth_card *card,
+ struct qeth_ipaddr *query)
+{
+ u64 key = qeth_l3_ipaddr_hash(query);
+ struct qeth_ipaddr *addr;
+
+ if (query->is_multicast) {
+ hash_for_each_possible(card->ip_mc_htable, addr, hnode, key)
+ if (qeth_l3_addr_match_ip(addr, query))
+ return addr;
+ } else {
+ hash_for_each_possible(card->ip_htable, addr, hnode, key)
+ if (qeth_l3_addr_match_ip(addr, query))
+ return addr;
+ }
+ return NULL;
+}
+
+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;
+ }
+ }
+}
+
+static bool 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 false;
+ if (addr->type != QETH_IP_TYPE_NORMAL)
+ return false;
+
+ 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;
+}
+
+static int qeth_l3_delete_ip(struct qeth_card *card,
+ struct qeth_ipaddr *tmp_addr)
+{
+ int rc = 0;
+ struct qeth_ipaddr *addr;
+
+ if (tmp_addr->type == QETH_IP_TYPE_RXIP)
+ QETH_CARD_TEXT(card, 2, "delrxip");
+ else if (tmp_addr->type == QETH_IP_TYPE_VIPA)
+ QETH_CARD_TEXT(card, 2, "delvipa");
+ else
+ QETH_CARD_TEXT(card, 2, "delip");
+
+ if (tmp_addr->proto == QETH_PROT_IPV4)
+ QETH_CARD_HEX(card, 4, &tmp_addr->u.a4.addr, 4);
+ else {
+ QETH_CARD_HEX(card, 4, &tmp_addr->u.a6.addr, 8);
+ QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8);
+ }
+
+ addr = qeth_l3_find_addr_by_ip(card, tmp_addr);
+ if (!addr || !qeth_l3_addr_match_all(addr, tmp_addr))
+ return -ENOENT;
+
+ addr->ref_counter--;
+ if (addr->type == QETH_IP_TYPE_NORMAL && addr->ref_counter > 0)
+ return rc;
+ if (addr->in_progress)
+ return -EINPROGRESS;
+
+ if (qeth_card_hw_is_reachable(card))
+ rc = qeth_l3_deregister_addr_entry(card, addr);
+
+ hash_del(&addr->hnode);
+ kfree(addr);
+
+ return rc;
+}
+
+static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
+{
+ int rc = 0;
+ struct qeth_ipaddr *addr;
+ char buf[40];
+
+ if (tmp_addr->type == QETH_IP_TYPE_RXIP)
+ QETH_CARD_TEXT(card, 2, "addrxip");
+ else if (tmp_addr->type == QETH_IP_TYPE_VIPA)
+ QETH_CARD_TEXT(card, 2, "addvipa");
+ else
+ QETH_CARD_TEXT(card, 2, "addip");
+
+ if (tmp_addr->proto == QETH_PROT_IPV4)
+ QETH_CARD_HEX(card, 4, &tmp_addr->u.a4.addr, 4);
+ else {
+ QETH_CARD_HEX(card, 4, &tmp_addr->u.a6.addr, 8);
+ QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8);
+ }
+
+ addr = qeth_l3_find_addr_by_ip(card, tmp_addr);
+ if (addr) {
+ if (tmp_addr->type != QETH_IP_TYPE_NORMAL)
+ return -EADDRINUSE;
+ if (qeth_l3_addr_match_all(addr, tmp_addr)) {
+ addr->ref_counter++;
+ return 0;
+ }
+ qeth_l3_ipaddr_to_string(tmp_addr->proto, (u8 *)&tmp_addr->u,
+ buf);
+ dev_warn(&card->gdev->dev,
+ "Registering IP address %s failed\n", buf);
+ return -EADDRINUSE;
+ } else {
+ addr = qeth_l3_get_addr_buffer(tmp_addr->proto);
+ if (!addr)
+ return -ENOMEM;
+
+ memcpy(addr, tmp_addr, sizeof(struct qeth_ipaddr));
+ addr->ref_counter = 1;
+
+ if (qeth_l3_is_addr_covered_by_ipato(card, addr)) {
+ QETH_CARD_TEXT(card, 2, "tkovaddr");
+ addr->ipato = 1;
+ }
+ hash_add(card->ip_htable, &addr->hnode,
+ qeth_l3_ipaddr_hash(addr));
+
+ if (!qeth_card_hw_is_reachable(card)) {
+ addr->disp_flag = QETH_DISP_ADDR_ADD;
+ return 0;
+ }
+
+ /* qeth_l3_register_addr_entry can go to sleep
+ * if we add a IPV4 addr. It is caused by the reason
+ * that SETIP ipa cmd starts ARP staff for IPV4 addr.
+ * Thus we should unlock spinlock, and make a protection
+ * using in_progress variable to indicate that there is
+ * an hardware operation with this IPV4 address
+ */
+ if (addr->proto == QETH_PROT_IPV4) {
+ addr->in_progress = 1;
+ mutex_unlock(&card->ip_lock);
+ rc = qeth_l3_register_addr_entry(card, addr);
+ mutex_lock(&card->ip_lock);
+ addr->in_progress = 0;
+ } else
+ rc = qeth_l3_register_addr_entry(card, addr);
+
+ if (!rc || rc == -EADDRINUSE || rc == -ENETDOWN) {
+ addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
+ if (addr->ref_counter < 1) {
+ qeth_l3_deregister_addr_entry(card, addr);
+ hash_del(&addr->hnode);
+ kfree(addr);
+ }
+ } else {
+ hash_del(&addr->hnode);
+ kfree(addr);
+ }
+ }
+ return rc;
+}
+
+static int qeth_l3_modify_ip(struct qeth_card *card, struct qeth_ipaddr *addr,
+ bool add)
+{
+ int rc;
+
+ mutex_lock(&card->ip_lock);
+ rc = add ? qeth_l3_add_ip(card, addr) : qeth_l3_delete_ip(card, addr);
+ mutex_unlock(&card->ip_lock);
+
+ return rc;
+}
+
+static void qeth_l3_drain_rx_mode_cache(struct qeth_card *card)
+{
+ struct qeth_ipaddr *addr;
+ struct hlist_node *tmp;
+ int i;
+
+ hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
+ hash_del(&addr->hnode);
+ kfree(addr);
+ }
+}
+
+static void qeth_l3_clear_ip_htable(struct qeth_card *card, int recover)
+{
+ struct qeth_ipaddr *addr;
+ struct hlist_node *tmp;
+ int i;
+
+ QETH_CARD_TEXT(card, 4, "clearip");
+
+ mutex_lock(&card->ip_lock);
+
+ hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
+ if (!recover) {
+ hash_del(&addr->hnode);
+ kfree(addr);
+ } else {
+ /* prepare for recovery */
+ addr->disp_flag = QETH_DISP_ADDR_ADD;
+ }
+ }
+
+ mutex_unlock(&card->ip_lock);
+}
+
+static void qeth_l3_recover_ip(struct qeth_card *card)
+{
+ struct qeth_ipaddr *addr;
+ struct hlist_node *tmp;
+ int i;
+ int rc;
+
+ QETH_CARD_TEXT(card, 4, "recovrip");
+
+ mutex_lock(&card->ip_lock);
+
+ hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
+ if (addr->disp_flag == QETH_DISP_ADDR_ADD) {
+ if (addr->proto == QETH_PROT_IPV4) {
+ addr->in_progress = 1;
+ mutex_unlock(&card->ip_lock);
+ rc = qeth_l3_register_addr_entry(card, addr);
+ mutex_lock(&card->ip_lock);
+ addr->in_progress = 0;
+ } else
+ rc = qeth_l3_register_addr_entry(card, addr);
+
+ if (!rc || rc == -EADDRINUSE || rc == -ENETDOWN) {
+ /* keep it in the records */
+ addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
+ if (addr->ref_counter < 1)
+ qeth_l3_delete_ip(card, addr);
+ } else {
+ /* bad address */
+ hash_del(&addr->hnode);
+ kfree(addr);
+ }
+ }
+ }
+
+ mutex_unlock(&card->ip_lock);
+}
+
+static int qeth_l3_setdelip_cb(struct qeth_card *card, struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
+
+ switch (cmd->hdr.return_code) {
+ case IPA_RC_SUCCESS:
+ return 0;
+ case IPA_RC_DUPLICATE_IP_ADDRESS:
+ return -EADDRINUSE;
+ case IPA_RC_MC_ADDR_NOT_FOUND:
+ return -ENOENT;
+ case IPA_RC_LAN_OFFLINE:
+ return -ENETDOWN;
+ default:
+ return -EIO;
+ }
+}
+
+static int qeth_l3_send_setdelmc(struct qeth_card *card,
+ struct qeth_ipaddr *addr, int ipacmd)
+{
+ struct qeth_cmd_buffer *iob;
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_CARD_TEXT(card, 4, "setdelmc");
+
+ iob = qeth_ipa_alloc_cmd(card, ipacmd, addr->proto,
+ IPA_DATA_SIZEOF(setdelipm));
+ if (!iob)
+ return -ENOMEM;
+ cmd = __ipa_cmd(iob);
+ ether_addr_copy(cmd->data.setdelipm.mac, addr->mac);
+ 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);
+
+ return qeth_send_ipa_cmd(card, iob, qeth_l3_setdelip_cb, NULL);
+}
+
+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 u32 qeth_l3_get_setdelip_flags(struct qeth_ipaddr *addr, bool set)
+{
+ switch (addr->type) {
+ case QETH_IP_TYPE_RXIP:
+ return (set) ? QETH_IPA_SETIP_TAKEOVER_FLAG : 0;
+ case QETH_IP_TYPE_VIPA:
+ return (set) ? QETH_IPA_SETIP_VIPA_FLAG :
+ QETH_IPA_DELIP_VIPA_FLAG;
+ default:
+ return (set && addr->ipato) ? QETH_IPA_SETIP_TAKEOVER_FLAG : 0;
+ }
+}
+
+static int qeth_l3_send_setdelip(struct qeth_card *card,
+ struct qeth_ipaddr *addr,
+ enum qeth_ipa_cmds ipacmd)
+{
+ struct qeth_cmd_buffer *iob;
+ struct qeth_ipa_cmd *cmd;
+ __u8 netmask[16];
+ u32 flags;
+
+ QETH_CARD_TEXT(card, 4, "setdelip");
+
+ iob = qeth_ipa_alloc_cmd(card, ipacmd, addr->proto,
+ IPA_DATA_SIZEOF(setdelip6));
+ if (!iob)
+ return -ENOMEM;
+ cmd = __ipa_cmd(iob);
+
+ flags = qeth_l3_get_setdelip_flags(addr, ipacmd == IPA_CMD_SETIP);
+ QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
+
+ 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;
+ }
+
+ return qeth_send_ipa_cmd(card, iob, qeth_l3_setdelip_cb, NULL);
+}
+
+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_ipa_alloc_cmd(card, IPA_CMD_SETRTG, prot,
+ IPA_DATA_SIZEOF(setrtg));
+ if (!iob)
+ return -ENOMEM;
+ cmd = __ipa_cmd(iob);
+ 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 (IS_IQD(card)) {
+ 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 (%#06x) while setting routing type on device %x. Type set to 'no router'.\n",
+ rc, CARD_DEVID(card));
+ }
+ return rc;
+}
+
+int qeth_l3_setrouting_v6(struct qeth_card *card)
+{
+ int rc = 0;
+
+ QETH_CARD_TEXT(card, 3, "setrtg6");
+
+ 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 (%#06x) while setting routing type on device %x. Type set to 'no router'.\n",
+ rc, CARD_DEVID(card));
+ }
+ return rc;
+}
+
+/*
+ * IP address takeover related functions
+ */
+
+/**
+ * qeth_l3_update_ipato() - Update 'takeover' property, for all NORMAL IPs.
+ *
+ * Caller must hold ip_lock.
+ */
+void qeth_l3_update_ipato(struct qeth_card *card)
+{
+ struct qeth_ipaddr *addr;
+ unsigned int i;
+
+ hash_for_each(card->ip_htable, i, addr, hnode) {
+ if (addr->type != QETH_IP_TYPE_NORMAL)
+ continue;
+ addr->ipato = qeth_l3_is_addr_covered_by_ipato(card, addr);
+ }
+}
+
+static void qeth_l3_clear_ipato_list(struct qeth_card *card)
+{
+ struct qeth_ipato_entry *ipatoe, *tmp;
+
+ mutex_lock(&card->ip_lock);
+
+ list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
+ list_del(&ipatoe->entry);
+ kfree(ipatoe);
+ }
+
+ qeth_l3_update_ipato(card);
+ mutex_unlock(&card->ip_lock);
+}
+
+int qeth_l3_add_ipato_entry(struct qeth_card *card,
+ struct qeth_ipato_entry *new)
+{
+ struct qeth_ipato_entry *ipatoe;
+ int rc = 0;
+
+ QETH_CARD_TEXT(card, 2, "addipato");
+
+ mutex_lock(&card->ip_lock);
+
+ 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);
+ qeth_l3_update_ipato(card);
+ }
+
+ mutex_unlock(&card->ip_lock);
+
+ return rc;
+}
+
+int 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;
+ int rc = -ENOENT;
+
+ QETH_CARD_TEXT(card, 2, "delipato");
+
+ mutex_lock(&card->ip_lock);
+
+ 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);
+ qeth_l3_update_ipato(card);
+ kfree(ipatoe);
+ rc = 0;
+ }
+ }
+
+ mutex_unlock(&card->ip_lock);
+ return rc;
+}
+
+int qeth_l3_modify_rxip_vipa(struct qeth_card *card, bool add, const u8 *ip,
+ enum qeth_ip_types type,
+ enum qeth_prot_versions proto)
+{
+ struct qeth_ipaddr addr;
+
+ qeth_l3_init_ipaddr(&addr, type, proto);
+ if (proto == QETH_PROT_IPV4)
+ memcpy(&addr.u.a4.addr, ip, 4);
+ else
+ memcpy(&addr.u.a6.addr, ip, 16);
+
+ return qeth_l3_modify_ip(card, &addr, add);
+}
+
+int qeth_l3_modify_hsuid(struct qeth_card *card, bool add)
+{
+ struct qeth_ipaddr addr;
+ unsigned int i;
+
+ qeth_l3_init_ipaddr(&addr, QETH_IP_TYPE_NORMAL, QETH_PROT_IPV6);
+ addr.u.a6.addr.s6_addr[0] = 0xfe;
+ addr.u.a6.addr.s6_addr[1] = 0x80;
+ for (i = 0; i < 8; i++)
+ addr.u.a6.addr.s6_addr[8+i] = card->options.hsuid[i];
+
+ return qeth_l3_modify_ip(card, &addr, add);
+}
+
+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 (card->options.sniffer)
+ return 0;
+
+ 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);
+ 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 (card->options.sniffer)
+ return 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);
+ if (rc)
+ QETH_CARD_TEXT(card, 2, "failed");
+
+ return rc;
+}
+
+static int qeth_l3_setadapter_parms(struct qeth_card *card)
+{
+ int rc = 0;
+
+ QETH_CARD_TEXT(card, 2, "setadprm");
+
+ 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_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_send_simple_setassparms(card, IPA_ARP_PROCESSING,
+ IPA_CMD_ASS_START, NULL);
+ 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_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_send_simple_setassparms(card, IPA_SOURCE_MAC,
+ IPA_CMD_ASS_START, NULL);
+ 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_send_simple_setassparms(card, IPA_VLAN_PRIO,
+ IPA_CMD_ASS_START, NULL);
+ 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_send_simple_setassparms(card, IPA_MULTICASTING,
+ IPA_CMD_ASS_START, NULL);
+ 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;
+}
+
+static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
+{
+ u32 ipv6_data = 3;
+ int rc;
+
+ QETH_CARD_TEXT(card, 3, "softipv6");
+
+ if (IS_IQD(card))
+ goto out;
+
+ rc = qeth_send_simple_setassparms(card, IPA_IPV6, IPA_CMD_ASS_START,
+ &ipv6_data);
+ if (rc) {
+ dev_err(&card->gdev->dev,
+ "Activating IPv6 support for %s failed\n",
+ QETH_CARD_IFNAME(card));
+ return rc;
+ }
+ rc = qeth_send_simple_setassparms_v6(card, IPA_IPV6, IPA_CMD_ASS_START,
+ NULL);
+ if (rc) {
+ dev_err(&card->gdev->dev,
+ "Activating IPv6 support for %s failed\n",
+ QETH_CARD_IFNAME(card));
+ return rc;
+ }
+ rc = qeth_send_simple_setassparms_v6(card, IPA_PASSTHRU,
+ IPA_CMD_ASS_START, NULL);
+ 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;
+}
+
+static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
+{
+ 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;
+ }
+ return qeth_l3_softsetup_ipv6(card);
+}
+
+static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
+{
+ u32 filter_data = 1;
+ 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_send_simple_setassparms(card, IPA_FILTERING,
+ IPA_CMD_ASS_START, NULL);
+ if (rc) {
+ dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
+ "%s failed\n", QETH_CARD_IFNAME(card));
+ goto out;
+ }
+
+ rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
+ IPA_CMD_ASS_CONFIGURE, &filter_data);
+ 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_send_simple_setassparms(card, IPA_FILTERING,
+ IPA_CMD_ASS_ENABLE, &filter_data);
+ 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_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_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*/
+ 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 = (struct qeth_ipa_cmd *) data;
+
+ if (cmd->hdr.return_code)
+ return -EIO;
+
+ ether_addr_copy(card->dev->dev_addr,
+ cmd->data.create_destroy_addr.unique_id);
+ 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_CARD_TEXT(card, 2, "hsrmac");
+
+ iob = qeth_ipa_alloc_cmd(card, IPA_CMD_CREATE_ADDR, QETH_PROT_IPV6,
+ IPA_DATA_SIZEOF(create_destroy_addr));
+ if (!iob)
+ return -ENOMEM;
+ cmd = __ipa_cmd(iob);
+ *((__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 = (struct qeth_ipa_cmd *) data;
+
+ if (cmd->hdr.return_code == 0) {
+ card->info.unique_id = *((__u16 *)
+ &cmd->data.create_destroy_addr.unique_id[6]);
+ return 0;
+ }
+
+ 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 -EIO;
+}
+
+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_CARD_TEXT(card, 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_ipa_alloc_cmd(card, IPA_CMD_CREATE_ADDR, QETH_PROT_IPV6,
+ IPA_DATA_SIZEOF(create_destroy_addr));
+ if (!iob)
+ return -ENOMEM;
+ cmd = __ipa_cmd(iob);
+ *((__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_CARD_TEXT(card, 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 (%#06x) on device %x\n",
+ cmd->data.diagass.action, CARD_DEVID(card));
+ }
+
+ return rc ? -EIO : 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_CARD_TEXT(card, 2, "diagtrac");
+
+ iob = qeth_get_diag_cmd(card, QETH_DIAGS_CMD_TRACE, 0);
+ if (!iob)
+ return -ENOMEM;
+ cmd = __ipa_cmd(iob);
+ 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_add_mc_to_hash(struct qeth_card *card, struct in_device *in4_dev)
+{
+ struct ip_mc_list *im4;
+ struct qeth_ipaddr *tmp, *ipm;
+
+ QETH_CARD_TEXT(card, 4, "addmc");
+
+ tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
+ if (!tmp)
+ return;
+
+ for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
+ im4 = rcu_dereference(im4->next_rcu)) {
+ ip_eth_mc_map(im4->multiaddr, tmp->mac);
+ tmp->u.a4.addr = be32_to_cpu(im4->multiaddr);
+ tmp->is_multicast = 1;
+
+ ipm = qeth_l3_find_addr_by_ip(card, tmp);
+ if (ipm) {
+ /* for mcast, by-IP match means full match */
+ ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
+ } else {
+ ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
+ if (!ipm)
+ continue;
+ ether_addr_copy(ipm->mac, tmp->mac);
+ ipm->u.a4.addr = be32_to_cpu(im4->multiaddr);
+ ipm->is_multicast = 1;
+ ipm->disp_flag = QETH_DISP_ADDR_ADD;
+ hash_add(card->ip_mc_htable,
+ &ipm->hnode, qeth_l3_ipaddr_hash(ipm));
+ }
+ }
+
+ kfree(tmp);
+}
+
+/* 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_to_hash(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_to_hash(card, in4_dev);
+ qeth_l3_add_vlan_mc(card);
+unlock:
+ rcu_read_unlock();
+}
+
+static void qeth_l3_add_mc6_to_hash(struct qeth_card *card,
+ struct inet6_dev *in6_dev)
+{
+ struct qeth_ipaddr *ipm;
+ struct ifmcaddr6 *im6;
+ struct qeth_ipaddr *tmp;
+
+ QETH_CARD_TEXT(card, 4, "addmc6");
+
+ tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
+ if (!tmp)
+ return;
+
+ for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
+ ipv6_eth_mc_map(&im6->mca_addr, tmp->mac);
+ memcpy(&tmp->u.a6.addr, &im6->mca_addr.s6_addr,
+ sizeof(struct in6_addr));
+ tmp->is_multicast = 1;
+
+ ipm = qeth_l3_find_addr_by_ip(card, tmp);
+ if (ipm) {
+ /* for mcast, by-IP match means full match */
+ ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
+ continue;
+ }
+
+ ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
+ if (!ipm)
+ continue;
+
+ ether_addr_copy(ipm->mac, tmp->mac);
+ memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
+ sizeof(struct in6_addr));
+ ipm->is_multicast = 1;
+ ipm->disp_flag = QETH_DISP_ADDR_ADD;
+ hash_add(card->ip_mc_htable,
+ &ipm->hnode, qeth_l3_ipaddr_hash(ipm));
+
+ }
+ kfree(tmp);
+}
+
+/* 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_to_hash(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)
+ return;
+
+ rcu_read_lock();
+ read_lock_bh(&in6_dev->lock);
+ qeth_l3_add_mc6_to_hash(card, in6_dev);
+ qeth_l3_add_vlan_mc6(card);
+ read_unlock_bh(&in6_dev->lock);
+ rcu_read_unlock();
+ in6_dev_put(in6_dev);
+}
+
+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;
+
+ QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
+
+ clear_bit(vid, card->active_vlans);
+ qeth_l3_set_rx_mode(dev);
+ return 0;
+}
+
+static void qeth_l3_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
+ struct qeth_hdr *hdr)
+{
+ struct af_iucv_trans_hdr *iucv = (struct af_iucv_trans_hdr *) skb->data;
+ struct net_device *dev = skb->dev;
+
+ if (IS_IQD(card) && iucv->magic == ETH_P_AF_IUCV) {
+ dev_hard_header(skb, dev, ETH_P_AF_IUCV, dev->dev_addr,
+ "FAKELL", skb->len);
+ return;
+ }
+
+ if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
+ u16 prot = (hdr->hdr.l3.flags & QETH_HDR_IPV6) ? ETH_P_IPV6 :
+ ETH_P_IP;
+ unsigned char tg_addr[ETH_ALEN];
+
+ skb_reset_network_header(skb);
+ switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
+ case QETH_CAST_MULTICAST:
+ if (prot == ETH_P_IP)
+ ip_eth_mc_map(ip_hdr(skb)->daddr, tg_addr);
+ else
+ ipv6_eth_mc_map(&ipv6_hdr(skb)->daddr, tg_addr);
+ QETH_CARD_STAT_INC(card, rx_multicast);
+ break;
+ case QETH_CAST_BROADCAST:
+ ether_addr_copy(tg_addr, card->dev->broadcast);
+ QETH_CARD_STAT_INC(card, rx_multicast);
+ break;
+ default:
+ if (card->options.sniffer)
+ skb->pkt_type = PACKET_OTHERHOST;
+ ether_addr_copy(tg_addr, card->dev->dev_addr);
+ }
+
+ 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.next_hop.rx.src_mac,
+ skb->len);
+ else
+ card->dev->header_ops->create(skb, card->dev, prot,
+ tg_addr, "FAKELL", skb->len);
+ }
+
+ /* copy VLAN tag from hdr into skb */
+ if (!card->options.sniffer &&
+ (hdr->hdr.l3.ext_flags & (QETH_HDR_EXT_VLAN_FRAME |
+ QETH_HDR_EXT_INCLUDE_VLAN_TAG))) {
+ u16 tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
+ hdr->hdr.l3.vlan_id :
+ hdr->hdr.l3.next_hop.rx.vlan_id;
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), tag);
+ }
+
+ qeth_rx_csum(card, skb, hdr->hdr.l3.ext_flags);
+}
+
+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;
+ unsigned int len;
+
+ *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;
+ }
+ switch (hdr->hdr.l3.id) {
+ case QETH_HEADER_TYPE_LAYER3:
+ qeth_l3_rebuild_skb(card, skb, hdr);
+ /* fall through */
+ case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
+ skb->protocol = eth_type_trans(skb, skb->dev);
+ len = skb->len;
+ napi_gro_receive(&card->napi, skb);
+ break;
+ default:
+ dev_kfree_skb_any(skb);
+ QETH_CARD_TEXT(card, 3, "inbunkno");
+ QETH_DBF_HEX(CTRL, 3, hdr, sizeof(*hdr));
+ continue;
+ }
+ work_done++;
+ budget--;
+ QETH_CARD_STAT_INC(card, rx_packets);
+ QETH_CARD_STAT_ADD(card, rx_bytes, len);
+ }
+ return work_done;
+}
+
+static void qeth_l3_stop_card(struct qeth_card *card)
+{
+ QETH_CARD_TEXT(card, 2, "stopcard");
+
+ qeth_set_allowed_threads(card, 0, 1);
+
+ cancel_work_sync(&card->rx_mode_work);
+ qeth_l3_drain_rx_mode_cache(card);
+
+ if (card->options.sniffer &&
+ (card->info.promisc_mode == SET_PROMISC_MODE_ON))
+ qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
+
+ if (card->state == CARD_STATE_SOFTSETUP) {
+ qeth_l3_clear_ip_htable(card, 1);
+ qeth_clear_ipacmd_list(card);
+ card->state = CARD_STATE_HARDSETUP;
+ }
+ if (card->state == CARD_STATE_HARDSETUP) {
+ qeth_drain_output_queues(card);
+ qeth_clear_working_pool_list(card);
+ card->state = CARD_STATE_DOWN;
+ }
+
+ qeth_qdio_clear_card(card, 0);
+ flush_workqueue(card->event_wq);
+ card->info.promisc_mode = 0;
+}
+
+static void qeth_l3_set_promisc_mode(struct qeth_card *card)
+{
+ bool enable = card->dev->flags & IFF_PROMISC;
+
+ if (card->info.promisc_mode == enable)
+ return;
+
+ if (IS_VM_NIC(card)) { /* Guestlan trace */
+ if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
+ qeth_setadp_promisc_mode(card, enable);
+ } else if (card->options.sniffer && /* HiperSockets trace */
+ qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
+ if (enable) {
+ 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_rx_mode_work(struct work_struct *work)
+{
+ struct qeth_card *card = container_of(work, struct qeth_card,
+ rx_mode_work);
+ struct qeth_ipaddr *addr;
+ struct hlist_node *tmp;
+ int i, rc;
+
+ QETH_CARD_TEXT(card, 3, "setmulti");
+
+ if (!card->options.sniffer) {
+ qeth_l3_add_multicast_ipv4(card);
+ qeth_l3_add_multicast_ipv6(card);
+
+ hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
+ switch (addr->disp_flag) {
+ case QETH_DISP_ADDR_DELETE:
+ rc = qeth_l3_deregister_addr_entry(card, addr);
+ if (!rc || rc == -ENOENT) {
+ hash_del(&addr->hnode);
+ kfree(addr);
+ }
+ break;
+ case QETH_DISP_ADDR_ADD:
+ rc = qeth_l3_register_addr_entry(card, addr);
+ if (rc && rc != -ENETDOWN) {
+ hash_del(&addr->hnode);
+ kfree(addr);
+ break;
+ }
+ addr->ref_counter = 1;
+ /* fall through */
+ default:
+ /* for next call to set_rx_mode(): */
+ addr->disp_flag = QETH_DISP_ADDR_DELETE;
+ }
+ }
+ }
+
+ qeth_l3_set_promisc_mode(card);
+}
+
+static int qeth_l3_arp_makerc(u16 rc)
+{
+ switch (rc) {
+ case IPA_RC_SUCCESS:
+ return 0;
+ case QETH_IPA_ARP_RC_NOTSUPP:
+ case QETH_IPA_ARP_RC_Q_NOTSUPP:
+ return -EOPNOTSUPP;
+ case QETH_IPA_ARP_RC_OUT_OF_RANGE:
+ return -EINVAL;
+ case QETH_IPA_ARP_RC_Q_NO_DATA:
+ return -ENOENT;
+ default:
+ return -EIO;
+ }
+}
+
+static int qeth_l3_arp_cmd_cb(struct qeth_card *card, struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
+
+ qeth_setassparms_cb(card, reply, data);
+ return qeth_l3_arp_makerc(cmd->hdr.return_code);
+}
+
+static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
+{
+ struct qeth_cmd_buffer *iob;
+ 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 (IS_VM_NIC(card))
+ return -EOPNOTSUPP;
+ if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
+ return -EOPNOTSUPP;
+ }
+
+ iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
+ IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
+ SETASS_DATA_SIZEOF(flags_32bit),
+ QETH_PROT_IPV4);
+ if (!iob)
+ return -ENOMEM;
+
+ __ipa_cmd(iob)->data.setassparms.data.flags_32bit = (u32) no_entries;
+ rc = qeth_send_ipa_cmd(card, iob, qeth_l3_arp_cmd_cb, NULL);
+ if (rc)
+ QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on device %x: %#x\n",
+ CARD_DEVID(card), rc);
+ 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 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 qeth_l3_arp_makerc(cmd->hdr.return_code);
+ }
+ 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 qeth_l3_arp_makerc(cmd->hdr.return_code);
+ }
+ 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", -ENOSPC);
+ memset(qinfo->udata, 0, 4);
+ return -ENOSPC;
+ }
+
+ 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;
+}
+
+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 rc;
+
+ QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
+
+ iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
+ IPA_CMD_ASS_ARP_QUERY_INFO,
+ SETASS_DATA_SIZEOF(query_arp), prot);
+ if (!iob)
+ return -ENOMEM;
+ cmd = __ipa_cmd(iob);
+ cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
+ rc = qeth_send_ipa_cmd(card, iob, qeth_l3_arp_query_cb, qinfo);
+ if (rc)
+ QETH_DBF_MESSAGE(2, "Error while querying ARP cache on device %x: %#x\n",
+ CARD_DEVID(card), rc);
+ 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;
+ }
+ 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);
+ }
+ 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_modify_entry(struct qeth_card *card,
+ struct qeth_arp_cache_entry *entry,
+ enum qeth_arp_process_subcmds arp_cmd)
+{
+ struct qeth_arp_cache_entry *cmd_entry;
+ struct qeth_cmd_buffer *iob;
+ int rc;
+
+ if (arp_cmd == IPA_CMD_ASS_ARP_ADD_ENTRY)
+ QETH_CARD_TEXT(card, 3, "arpadd");
+ else
+ QETH_CARD_TEXT(card, 3, "arpdel");
+
+ /*
+ * 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 (IS_VM_NIC(card))
+ return -EOPNOTSUPP;
+ if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
+ return -EOPNOTSUPP;
+ }
+
+ iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING, arp_cmd,
+ SETASS_DATA_SIZEOF(arp_entry),
+ QETH_PROT_IPV4);
+ if (!iob)
+ return -ENOMEM;
+
+ cmd_entry = &__ipa_cmd(iob)->data.setassparms.data.arp_entry;
+ ether_addr_copy(cmd_entry->macaddr, entry->macaddr);
+ memcpy(cmd_entry->ipaddr, entry->ipaddr, 4);
+ rc = qeth_send_ipa_cmd(card, iob, qeth_l3_arp_cmd_cb, NULL);
+ if (rc)
+ QETH_DBF_MESSAGE(2, "Could not modify (cmd: %#x) ARP entry on device %x: %#x\n",
+ arp_cmd, CARD_DEVID(card), rc);
+ return rc;
+}
+
+static int qeth_l3_arp_flush_cache(struct qeth_card *card)
+{
+ struct qeth_cmd_buffer *iob;
+ int rc;
+
+ 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 (IS_VM_NIC(card) || IS_IQD(card))
+ return -EOPNOTSUPP;
+ if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
+ return -EOPNOTSUPP;
+ }
+
+ iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
+ IPA_CMD_ASS_ARP_FLUSH_CACHE, 0,
+ QETH_PROT_IPV4);
+ if (!iob)
+ return -ENOMEM;
+
+ rc = qeth_send_ipa_cmd(card, iob, qeth_l3_arp_cmd_cb, NULL);
+ if (rc)
+ QETH_DBF_MESSAGE(2, "Could not flush ARP cache on device %x: %#x\n",
+ CARD_DEVID(card), rc);
+ 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;
+ enum qeth_arp_process_subcmds arp_cmd;
+ int rc = 0;
+
+ 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:
+ case SIOC_QETH_ARP_REMOVE_ENTRY:
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+ if (copy_from_user(&arp_entry, rq->ifr_data, sizeof(arp_entry)))
+ return -EFAULT;
+
+ arp_cmd = (cmd == SIOC_QETH_ARP_ADD_ENTRY) ?
+ IPA_CMD_ASS_ARP_ADD_ENTRY :
+ IPA_CMD_ASS_ARP_REMOVE_ENTRY;
+ return qeth_l3_arp_modify_entry(card, &arp_entry, arp_cmd);
+ case SIOC_QETH_ARP_FLUSH_CACHE:
+ if (!capable(CAP_NET_ADMIN)) {
+ rc = -EPERM;
+ break;
+ }
+ rc = qeth_l3_arp_flush_cache(card);
+ break;
+ default:
+ rc = -EOPNOTSUPP;
+ }
+ return rc;
+}
+
+static int qeth_l3_get_cast_type_rcu(struct sk_buff *skb, struct dst_entry *dst,
+ int ipv)
+{
+ struct neighbour *n = NULL;
+
+ if (dst)
+ n = dst_neigh_lookup_skb(dst, skb);
+
+ if (n) {
+ int cast_type = n->type;
+
+ neigh_release(n);
+ if ((cast_type == RTN_BROADCAST) ||
+ (cast_type == RTN_MULTICAST) ||
+ (cast_type == RTN_ANYCAST))
+ return cast_type;
+ return RTN_UNICAST;
+ }
+
+ /* no neighbour (eg AF_PACKET), fall back to target's IP address ... */
+ switch (ipv) {
+ case 4:
+ if (ipv4_is_lbcast(ip_hdr(skb)->daddr))
+ return RTN_BROADCAST;
+ return ipv4_is_multicast(ip_hdr(skb)->daddr) ?
+ RTN_MULTICAST : RTN_UNICAST;
+ case 6:
+ return ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr) ?
+ RTN_MULTICAST : RTN_UNICAST;
+ default:
+ /* ... and MAC address */
+ return qeth_get_ether_cast_type(skb);
+ }
+}
+
+static int qeth_l3_get_cast_type(struct sk_buff *skb)
+{
+ int ipv = qeth_get_ip_version(skb);
+ struct dst_entry *dst;
+ int cast_type;
+
+ rcu_read_lock();
+ dst = qeth_dst_check_rcu(skb, ipv);
+ cast_type = qeth_l3_get_cast_type_rcu(skb, dst, ipv);
+ rcu_read_unlock();
+
+ return cast_type;
+}
+
+static u8 qeth_l3_cast_type_to_flag(int cast_type)
+{
+ if (cast_type == RTN_MULTICAST)
+ return QETH_CAST_MULTICAST;
+ if (cast_type == RTN_ANYCAST)
+ return QETH_CAST_ANYCAST;
+ if (cast_type == RTN_BROADCAST)
+ return QETH_CAST_BROADCAST;
+ return QETH_CAST_UNICAST;
+}
+
+static void qeth_l3_fill_header(struct qeth_qdio_out_q *queue,
+ struct qeth_hdr *hdr, struct sk_buff *skb,
+ int ipv, unsigned int data_len)
+{
+ struct qeth_hdr_layer3 *l3_hdr = &hdr->hdr.l3;
+ struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
+ struct qeth_card *card = queue->card;
+ struct dst_entry *dst;
+ int cast_type;
+
+ hdr->hdr.l3.length = data_len;
+
+ if (skb_is_gso(skb)) {
+ hdr->hdr.l3.id = QETH_HEADER_TYPE_L3_TSO;
+ } else {
+ hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
+
+ if (skb->protocol == htons(ETH_P_AF_IUCV)) {
+ l3_hdr->flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
+ l3_hdr->next_hop.ipv6_addr.s6_addr16[0] = htons(0xfe80);
+ memcpy(&l3_hdr->next_hop.ipv6_addr.s6_addr32[2],
+ iucv_trans_hdr(skb)->destUserID, 8);
+ return;
+ }
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ qeth_tx_csum(skb, &hdr->hdr.l3.ext_flags, ipv);
+ /* some HW requires combined L3+L4 csum offload: */
+ if (ipv == 4)
+ hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_HDR_REQ;
+ }
+ }
+
+ if (ipv == 4 || IS_IQD(card)) {
+ /* NETIF_F_HW_VLAN_CTAG_TX */
+ if (skb_vlan_tag_present(skb)) {
+ hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_VLAN_FRAME;
+ hdr->hdr.l3.vlan_id = skb_vlan_tag_get(skb);
+ }
+ } else if (veth->h_vlan_proto == htons(ETH_P_8021Q)) {
+ hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_INCLUDE_VLAN_TAG;
+ hdr->hdr.l3.vlan_id = ntohs(veth->h_vlan_TCI);
+ }
+
+ rcu_read_lock();
+ dst = qeth_dst_check_rcu(skb, ipv);
+
+ if (IS_IQD(card) && skb_get_queue_mapping(skb) != QETH_IQD_MCAST_TXQ)
+ cast_type = RTN_UNICAST;
+ else
+ cast_type = qeth_l3_get_cast_type_rcu(skb, dst, ipv);
+ l3_hdr->flags |= qeth_l3_cast_type_to_flag(cast_type);
+
+ if (ipv == 4) {
+ struct rtable *rt = (struct rtable *) dst;
+
+ *((__be32 *) &hdr->hdr.l3.next_hop.ipv4.addr) = (rt) ?
+ rt_nexthop(rt, ip_hdr(skb)->daddr) :
+ ip_hdr(skb)->daddr;
+ } else if (ipv == 6) {
+ struct rt6_info *rt = (struct rt6_info *) dst;
+
+ if (rt && !ipv6_addr_any(&rt->rt6i_gateway))
+ l3_hdr->next_hop.ipv6_addr = rt->rt6i_gateway;
+ else
+ l3_hdr->next_hop.ipv6_addr = ipv6_hdr(skb)->daddr;
+
+ hdr->hdr.l3.flags |= QETH_HDR_IPV6;
+ if (!IS_IQD(card))
+ hdr->hdr.l3.flags |= QETH_HDR_PASSTHRU;
+ } else {
+ /* OSA only: */
+ l3_hdr->flags |= QETH_HDR_PASSTHRU;
+ }
+ rcu_read_unlock();
+}
+
+static void qeth_l3_fixup_headers(struct sk_buff *skb)
+{
+ struct iphdr *iph = ip_hdr(skb);
+
+ /* this is safe, IPv6 traffic takes a different path */
+ if (skb->ip_summed == CHECKSUM_PARTIAL)
+ iph->check = 0;
+ if (skb_is_gso(skb)) {
+ iph->tot_len = 0;
+ tcp_hdr(skb)->check = ~tcp_v4_check(0, iph->saddr,
+ iph->daddr, 0);
+ }
+}
+
+static int qeth_l3_xmit(struct qeth_card *card, struct sk_buff *skb,
+ struct qeth_qdio_out_q *queue, int ipv)
+{
+ unsigned int hw_hdr_len;
+ int rc;
+
+ /* re-use the L2 header area for the HW header: */
+ hw_hdr_len = skb_is_gso(skb) ? sizeof(struct qeth_hdr_tso) :
+ sizeof(struct qeth_hdr);
+ rc = skb_cow_head(skb, hw_hdr_len - ETH_HLEN);
+ if (rc)
+ return rc;
+ skb_pull(skb, ETH_HLEN);
+
+ qeth_l3_fixup_headers(skb);
+ return qeth_xmit(card, skb, queue, ipv, qeth_l3_fill_header);
+}
+
+static netdev_tx_t qeth_l3_hard_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct qeth_card *card = dev->ml_priv;
+ u16 txq = skb_get_queue_mapping(skb);
+ int ipv = qeth_get_ip_version(skb);
+ struct qeth_qdio_out_q *queue;
+ int rc;
+
+ if (!skb_is_gso(skb))
+ qdisc_skb_cb(skb)->pkt_len = skb->len;
+ if (IS_IQD(card)) {
+ queue = card->qdio.out_qs[qeth_iqd_translate_txq(dev, txq)];
+
+ if (card->options.sniffer)
+ goto tx_drop;
+ if ((card->options.cq != QETH_CQ_ENABLED && !ipv) ||
+ (card->options.cq == QETH_CQ_ENABLED &&
+ skb->protocol != htons(ETH_P_AF_IUCV)))
+ goto tx_drop;
+ } else {
+ queue = card->qdio.out_qs[txq];
+ }
+
+ if (!(dev->flags & IFF_BROADCAST) &&
+ qeth_l3_get_cast_type(skb) == RTN_BROADCAST)
+ goto tx_drop;
+
+ if (ipv == 4 || IS_IQD(card))
+ rc = qeth_l3_xmit(card, skb, queue, ipv);
+ else
+ rc = qeth_xmit(card, skb, queue, ipv, qeth_l3_fill_header);
+
+ if (!rc)
+ return NETDEV_TX_OK;
+
+tx_drop:
+ QETH_TXQ_STAT_INC(queue, tx_dropped);
+ kfree_skb(skb);
+ return NETDEV_TX_OK;
+}
+
+static void qeth_l3_set_rx_mode(struct net_device *dev)
+{
+ struct qeth_card *card = dev->ml_priv;
+
+ schedule_work(&card->rx_mode_work);
+}
+
+/*
+ * 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 netdev_features_t qeth_l3_osa_features_check(struct sk_buff *skb,
+ struct net_device *dev,
+ netdev_features_t features)
+{
+ if (vlan_get_protocol(skb) != htons(ETH_P_IP))
+ features &= ~NETIF_F_HW_VLAN_CTAG_TX;
+ return qeth_features_check(skb, dev, features);
+}
+
+static u16 qeth_l3_iqd_select_queue(struct net_device *dev, struct sk_buff *skb,
+ struct net_device *sb_dev)
+{
+ return qeth_iqd_select_queue(dev, skb, qeth_l3_get_cast_type(skb),
+ sb_dev);
+}
+
+static u16 qeth_l3_osa_select_queue(struct net_device *dev, struct sk_buff *skb,
+ struct net_device *sb_dev)
+{
+ struct qeth_card *card = dev->ml_priv;
+
+ return qeth_get_priority_queue(card, skb);
+}
+
+static const struct net_device_ops qeth_l3_netdev_ops = {
+ .ndo_open = qeth_open,
+ .ndo_stop = qeth_stop,
+ .ndo_get_stats64 = qeth_get_stats64,
+ .ndo_start_xmit = qeth_l3_hard_start_xmit,
+ .ndo_select_queue = qeth_l3_iqd_select_queue,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_rx_mode = qeth_l3_set_rx_mode,
+ .ndo_do_ioctl = qeth_do_ioctl,
+ .ndo_fix_features = qeth_fix_features,
+ .ndo_set_features = qeth_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_open,
+ .ndo_stop = qeth_stop,
+ .ndo_get_stats64 = qeth_get_stats64,
+ .ndo_start_xmit = qeth_l3_hard_start_xmit,
+ .ndo_features_check = qeth_l3_osa_features_check,
+ .ndo_select_queue = qeth_l3_osa_select_queue,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_rx_mode = qeth_l3_set_rx_mode,
+ .ndo_do_ioctl = qeth_do_ioctl,
+ .ndo_fix_features = qeth_fix_features,
+ .ndo_set_features = qeth_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, bool carrier_ok)
+{
+ unsigned int headroom;
+ int rc;
+
+ if (IS_OSD(card) || IS_OSX(card)) {
+ 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;
+ }
+
+ 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 (!IS_VM_NIC(card)) {
+ card->dev->features |= NETIF_F_SG;
+ card->dev->hw_features |= NETIF_F_TSO |
+ NETIF_F_RXCSUM | NETIF_F_IP_CSUM;
+ card->dev->vlan_features |= NETIF_F_TSO |
+ NETIF_F_RXCSUM | NETIF_F_IP_CSUM;
+ }
+
+ if (qeth_is_supported6(card, IPA_OUTBOUND_CHECKSUM_V6)) {
+ card->dev->hw_features |= NETIF_F_IPV6_CSUM;
+ card->dev->vlan_features |= NETIF_F_IPV6_CSUM;
+ }
+ if (qeth_is_supported6(card, IPA_OUTBOUND_TSO)) {
+ card->dev->hw_features |= NETIF_F_TSO6;
+ card->dev->vlan_features |= NETIF_F_TSO6;
+ }
+
+ /* allow for de-acceleration of NETIF_F_HW_VLAN_CTAG_TX: */
+ if (card->dev->hw_features & NETIF_F_TSO6)
+ headroom = sizeof(struct qeth_hdr_tso) + VLAN_HLEN;
+ else if (card->dev->hw_features & NETIF_F_TSO)
+ headroom = sizeof(struct qeth_hdr_tso);
+ else
+ headroom = sizeof(struct qeth_hdr) + VLAN_HLEN;
+ } else if (IS_IQD(card)) {
+ card->dev->flags |= IFF_NOARP;
+ card->dev->netdev_ops = &qeth_l3_netdev_ops;
+ headroom = sizeof(struct qeth_hdr) - ETH_HLEN;
+
+ rc = qeth_l3_iqd_read_initial_mac(card);
+ if (rc)
+ goto out;
+ } else
+ return -ENODEV;
+
+ card->dev->needed_headroom = headroom;
+ 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);
+ if (card->dev->hw_features & (NETIF_F_TSO | NETIF_F_TSO6))
+ netif_set_gso_max_size(card->dev,
+ PAGE_SIZE * (QETH_MAX_BUFFER_ELEMENTS(card) - 1));
+
+ netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT);
+ rc = register_netdev(card->dev);
+ if (!rc && carrier_ok)
+ netif_carrier_on(card->dev);
+
+out:
+ if (rc)
+ card->dev->netdev_ops = NULL;
+ return rc;
+}
+
+static const struct device_type qeth_l3_devtype = {
+ .name = "qeth_layer3",
+ .groups = qeth_l3_attr_groups,
+};
+
+static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
+{
+ struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+ int rc;
+
+ hash_init(card->ip_htable);
+ mutex_init(&card->ip_lock);
+ card->cmd_wq = alloc_ordered_workqueue("%s_cmd", 0,
+ dev_name(&gdev->dev));
+ if (!card->cmd_wq)
+ return -ENOMEM;
+
+ if (gdev->dev.type == &qeth_generic_devtype) {
+ rc = qeth_l3_create_device_attributes(&gdev->dev);
+ if (rc) {
+ destroy_workqueue(card->cmd_wq);
+ return rc;
+ }
+ }
+
+ hash_init(card->ip_mc_htable);
+ INIT_WORK(&card->rx_mode_work, qeth_l3_rx_mode_work);
+ return 0;
+}
+
+static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
+{
+ struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
+
+ if (cgdev->dev.type == &qeth_generic_devtype)
+ 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);
+
+ cancel_work_sync(&card->close_dev_work);
+ if (qeth_netdev_is_registered(card->dev))
+ unregister_netdev(card->dev);
+
+ flush_workqueue(card->cmd_wq);
+ destroy_workqueue(card->cmd_wq);
+ qeth_l3_clear_ip_htable(card, 0);
+ qeth_l3_clear_ipato_list(card);
+}
+
+static int qeth_l3_set_online(struct ccwgroup_device *gdev)
+{
+ struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+ struct net_device *dev = card->dev;
+ int rc = 0;
+ bool carrier_ok;
+
+ mutex_lock(&card->discipline_mutex);
+ mutex_lock(&card->conf_mutex);
+ QETH_CARD_TEXT(card, 2, "setonlin");
+
+ rc = qeth_core_hardsetup_card(card, &carrier_ok);
+ if (rc) {
+ QETH_CARD_TEXT_(card, 2, "2err%04x", rc);
+ 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;
+ qeth_print_status_message(card);
+
+ /* softsetup */
+ QETH_CARD_TEXT(card, 2, "softsetp");
+
+ rc = qeth_l3_setadapter_parms(card);
+ if (rc)
+ QETH_CARD_TEXT_(card, 2, "2err%04x", rc);
+ if (!card->options.sniffer) {
+ rc = qeth_l3_start_ipassists(card);
+ if (rc) {
+ QETH_CARD_TEXT_(card, 2, "3err%d", rc);
+ goto out_remove;
+ }
+ rc = qeth_l3_setrouting_v4(card);
+ if (rc)
+ QETH_CARD_TEXT_(card, 2, "4err%04x", rc);
+ rc = qeth_l3_setrouting_v6(card);
+ if (rc)
+ QETH_CARD_TEXT_(card, 2, "5err%04x", rc);
+ }
+
+ rc = qeth_init_qdio_queues(card);
+ if (rc) {
+ QETH_CARD_TEXT_(card, 2, "6err%d", rc);
+ rc = -ENODEV;
+ goto out_remove;
+ }
+ card->state = CARD_STATE_SOFTSETUP;
+
+ qeth_set_allowed_threads(card, 0xffffffff, 0);
+ qeth_l3_recover_ip(card);
+
+ if (!qeth_netdev_is_registered(dev)) {
+ rc = qeth_l3_setup_netdev(card, carrier_ok);
+ if (rc)
+ goto out_remove;
+ } else {
+ rtnl_lock();
+ if (carrier_ok)
+ netif_carrier_on(dev);
+ else
+ netif_carrier_off(dev);
+
+ netif_device_attach(dev);
+ qeth_enable_hw_features(dev);
+
+ if (card->info.open_when_online) {
+ card->info.open_when_online = 0;
+ dev_open(dev, NULL);
+ }
+ rtnl_unlock();
+ }
+ 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);
+ qeth_stop_channel(&card->data);
+ qeth_stop_channel(&card->write);
+ qeth_stop_channel(&card->read);
+ qdio_free(CARD_DDEV(card));
+
+ mutex_unlock(&card->conf_mutex);
+ mutex_unlock(&card->discipline_mutex);
+ return rc;
+}
+
+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;
+
+ mutex_lock(&card->discipline_mutex);
+ mutex_lock(&card->conf_mutex);
+ QETH_CARD_TEXT(card, 3, "setoffl");
+
+ if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
+ qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
+ card->info.hwtrap = 1;
+ }
+
+ rtnl_lock();
+ card->info.open_when_online = card->dev->flags & IFF_UP;
+ dev_close(card->dev);
+ netif_device_detach(card->dev);
+ netif_carrier_off(card->dev);
+ rtnl_unlock();
+
+ qeth_l3_stop_card(card);
+ if (card->options.cq == QETH_CQ_ENABLED) {
+ rtnl_lock();
+ call_netdevice_notifiers(NETDEV_REBOOT, card->dev);
+ rtnl_unlock();
+ }
+
+ rc = qeth_stop_channel(&card->data);
+ rc2 = qeth_stop_channel(&card->write);
+ rc3 = qeth_stop_channel(&card->read);
+ if (!rc)
+ rc = (rc2) ? rc2 : rc3;
+ if (rc)
+ QETH_CARD_TEXT_(card, 2, "1err%d", rc);
+ qdio_free(CARD_DDEV(card));
+
+ /* 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_l3_set_offline(card->gdev, 1);
+ rc = qeth_l3_set_online(card->gdev);
+ if (!rc)
+ dev_info(&card->gdev->dev,
+ "Device successfully recovered!\n");
+ else {
+ ccwgroup_set_offline(card->gdev);
+ dev_warn(&card->gdev->dev, "The qeth device driver "
+ "failed to recover an error on the device\n");
+ }
+ qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
+ qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
+ return 0;
+}
+
+/* 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 = {
+ .devtype = &qeth_l3_devtype,
+ .process_rx_buffer = qeth_l3_process_inbound_buffer,
+ .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,
+ .do_ioctl = qeth_l3_do_ioctl,
+ .control_event_handler = qeth_l3_control_event,
+};
+EXPORT_SYMBOL_GPL(qeth_l3_discipline);
+
+static int qeth_l3_handle_ip_event(struct qeth_card *card,
+ struct qeth_ipaddr *addr,
+ unsigned long event)
+{
+ switch (event) {
+ case NETDEV_UP:
+ qeth_l3_modify_ip(card, addr, true);
+ return NOTIFY_OK;
+ case NETDEV_DOWN:
+ qeth_l3_modify_ip(card, addr, false);
+ return NOTIFY_OK;
+ default:
+ return NOTIFY_DONE;
+ }
+}
+
+struct qeth_l3_ip_event_work {
+ struct work_struct work;
+ struct qeth_card *card;
+ struct qeth_ipaddr addr;
+};
+
+#define to_ip_work(w) container_of((w), struct qeth_l3_ip_event_work, work)
+
+static void qeth_l3_add_ip_worker(struct work_struct *work)
+{
+ struct qeth_l3_ip_event_work *ip_work = to_ip_work(work);
+
+ qeth_l3_modify_ip(ip_work->card, &ip_work->addr, true);
+ kfree(work);
+}
+
+static void qeth_l3_delete_ip_worker(struct work_struct *work)
+{
+ struct qeth_l3_ip_event_work *ip_work = to_ip_work(work);
+
+ qeth_l3_modify_ip(ip_work->card, &ip_work->addr, false);
+ kfree(work);
+}
+
+static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
+{
+ if (is_vlan_dev(dev))
+ dev = vlan_dev_real_dev(dev);
+ if (dev->netdev_ops == &qeth_l3_osa_netdev_ops ||
+ dev->netdev_ops == &qeth_l3_netdev_ops)
+ return (struct qeth_card *) dev->ml_priv;
+ return NULL;
+}
+
+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 = 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");
+
+ qeth_l3_init_ipaddr(&addr, QETH_IP_TYPE_NORMAL, QETH_PROT_IPV4);
+ addr.u.a4.addr = be32_to_cpu(ifa->ifa_address);
+ addr.u.a4.mask = be32_to_cpu(ifa->ifa_mask);
+
+ return qeth_l3_handle_ip_event(card, &addr, event);
+}
+
+static struct notifier_block qeth_l3_ip_notifier = {
+ qeth_l3_ip_event,
+ NULL,
+};
+
+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 = ifa->idev->dev;
+ struct qeth_l3_ip_event_work *ip_work;
+ struct qeth_card *card;
+
+ if (event != NETDEV_UP && event != NETDEV_DOWN)
+ return NOTIFY_DONE;
+
+ 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;
+
+ ip_work = kmalloc(sizeof(*ip_work), GFP_ATOMIC);
+ if (!ip_work)
+ return NOTIFY_DONE;
+
+ if (event == NETDEV_UP)
+ INIT_WORK(&ip_work->work, qeth_l3_add_ip_worker);
+ else
+ INIT_WORK(&ip_work->work, qeth_l3_delete_ip_worker);
+
+ ip_work->card = card;
+ qeth_l3_init_ipaddr(&ip_work->addr, QETH_IP_TYPE_NORMAL,
+ QETH_PROT_IPV6);
+ ip_work->addr.u.a6.addr = ifa->addr;
+ ip_work->addr.u.a6.pfxlen = ifa->prefix_len;
+
+ queue_work(card->cmd_wq, &ip_work->work);
+ return NOTIFY_OK;
+}
+
+static struct notifier_block qeth_l3_ip6_notifier = {
+ qeth_l3_ip6_event,
+ NULL,
+};
+
+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;
+ rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
+ if (rc) {
+ unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
+ return rc;
+ }
+ return 0;
+}
+
+static void qeth_l3_unregister_notifiers(void)
+{
+ QETH_DBF_TEXT(SETUP, 5, "unregnot");
+ WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
+ WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
+}
+
+static int __init qeth_l3_init(void)
+{
+ pr_info("register layer 3 discipline\n");
+ return qeth_l3_register_notifiers();
+}
+
+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");