1 files changed, 209 insertions, 178 deletions

diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c
index ac1993708ae..adef5f5de11 100644
--- a/drivers/s390/net/qeth_l3_sys.c
+++ b/drivers/s390/net/qeth_l3_sys.c
@@ -1,6 +1,4 @@
 /*
- *  drivers/s390/net/qeth_l3_sys.c
- *
  *    Copyright IBM Corp. 2007
  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
  *		 Frank Pavlic <fpavlic@de.ibm.com>,
@@ -8,21 +6,13 @@
  *		 Frank Blaschka <frank.blaschka@de.ibm.com>
  */
 
+#include <linux/slab.h>
+#include <asm/ebcdic.h>
 #include "qeth_l3.h"
 
 #define QETH_DEVICE_ATTR(_id, _name, _mode, _show, _store) \
 struct device_attribute dev_attr_##_id = __ATTR(_name, _mode, _show, _store)
 
-static const char *qeth_l3_get_checksum_str(struct qeth_card *card)
-{
-	if (card->options.checksum_type == SW_CHECKSUMMING)
-		return "sw";
-	else if (card->options.checksum_type == HW_CHECKSUMMING)
-		return "hw";
-	else
-		return "no";
-}
-
 static ssize_t qeth_l3_dev_route_show(struct qeth_card *card,
 			struct qeth_routing_info *route, char *buf)
 {
@@ -68,10 +58,10 @@ static ssize_t qeth_l3_dev_route_store(struct qeth_card *card,
 {
 	enum qeth_routing_types old_route_type = route->type;
 	char *tmp;
-	int rc;
+	int rc = 0;
 
 	tmp = strsep((char **) &buf, "\n");
-
+	mutex_lock(&card->conf_mutex);
 	if (!strcmp(tmp, "no_router")) {
 		route->type = NO_ROUTER;
 	} else if (!strcmp(tmp, "primary_connector")) {
@@ -85,7 +75,8 @@ static ssize_t qeth_l3_dev_route_store(struct qeth_card *card,
 	} else if (!strcmp(tmp, "multicast_router")) {
 		route->type = MULTICAST_ROUTER;
 	} else {
-		return -EINVAL;
+		rc = -EINVAL;
+		goto out;
 	}
 	if (((card->state == CARD_STATE_SOFTSETUP) ||
 	     (card->state == CARD_STATE_UP)) &&
@@ -95,7 +86,11 @@ static ssize_t qeth_l3_dev_route_store(struct qeth_card *card,
 		else if (prot == QETH_PROT_IPV6)
 			rc = qeth_l3_setrouting_v6(card);
 	}
-	return count;
+out:
+	if (rc)
+		route->type = old_route_type;
+	mutex_unlock(&card->conf_mutex);
+	return rc ? rc : count;
 }
 
 static ssize_t qeth_l3_dev_route4_store(struct device *dev,
@@ -121,9 +116,6 @@ static ssize_t qeth_l3_dev_route6_show(struct device *dev,
 	if (!card)
 		return -EINVAL;
 
-	if (!qeth_is_supported(card, IPA_IPV6))
-		return sprintf(buf, "%s\n", "n/a");
-
 	return qeth_l3_dev_route_show(card, &card->options.route6, buf);
 }
 
@@ -135,10 +127,6 @@ static ssize_t qeth_l3_dev_route6_store(struct device *dev,
 	if (!card)
 		return -EINVAL;
 
-	if (!qeth_is_supported(card, IPA_IPV6)) {
-		return -ENOTSUPP;
-	}
-
 	return qeth_l3_dev_route_store(card, &card->options.route6,
 				QETH_PROT_IPV6, buf, count);
 }
@@ -162,176 +150,204 @@ static ssize_t qeth_l3_dev_fake_broadcast_store(struct device *dev,
 {
 	struct qeth_card *card = dev_get_drvdata(dev);
 	char *tmp;
-	int i;
+	int i, rc = 0;
 
 	if (!card)
 		return -EINVAL;
 
+	mutex_lock(&card->conf_mutex);
 	if ((card->state != CARD_STATE_DOWN) &&
-	    (card->state != CARD_STATE_RECOVER))
-		return -EPERM;
+	    (card->state != CARD_STATE_RECOVER)) {
+		rc = -EPERM;
+		goto out;
+	}
 
 	i = simple_strtoul(buf, &tmp, 16);
 	if ((i == 0) || (i == 1))
 		card->options.fake_broadcast = i;
-	else {
-		return -EINVAL;
-	}
-	return count;
+	else
+		rc = -EINVAL;
+out:
+	mutex_unlock(&card->conf_mutex);
+	return rc ? rc : count;
 }
 
 static DEVICE_ATTR(fake_broadcast, 0644, qeth_l3_dev_fake_broadcast_show,
 		   qeth_l3_dev_fake_broadcast_store);
 
-static ssize_t qeth_l3_dev_broadcast_mode_show(struct device *dev,
-				struct device_attribute *attr, char *buf)
+static ssize_t qeth_l3_dev_sniffer_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
 {
 	struct qeth_card *card = dev_get_drvdata(dev);
 
 	if (!card)
 		return -EINVAL;
 
-	if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
-	      (card->info.link_type == QETH_LINK_TYPE_LANE_TR)))
-		return sprintf(buf, "n/a\n");
-
-	return sprintf(buf, "%s\n", (card->options.broadcast_mode ==
-				     QETH_TR_BROADCAST_ALLRINGS)?
-		       "all rings":"local");
+	return sprintf(buf, "%i\n", card->options.sniffer ? 1 : 0);
 }
 
-static ssize_t qeth_l3_dev_broadcast_mode_store(struct device *dev,
+static ssize_t qeth_l3_dev_sniffer_store(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct qeth_card *card = dev_get_drvdata(dev);
-	char *tmp;
+	int rc = 0;
+	unsigned long i;
 
 	if (!card)
 		return -EINVAL;
 
-	if ((card->state != CARD_STATE_DOWN) &&
-	    (card->state != CARD_STATE_RECOVER))
+	if (card->info.type != QETH_CARD_TYPE_IQD)
+		return -EPERM;
+	if (card->options.cq == QETH_CQ_ENABLED)
 		return -EPERM;
 
-	if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
-	      (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) {
-		return -EINVAL;
+	mutex_lock(&card->conf_mutex);
+	if ((card->state != CARD_STATE_DOWN) &&
+	    (card->state != CARD_STATE_RECOVER)) {
+		rc = -EPERM;
+		goto out;
 	}
 
-	tmp = strsep((char **) &buf, "\n");
-
-	if (!strcmp(tmp, "local")) {
-		card->options.broadcast_mode = QETH_TR_BROADCAST_LOCAL;
-		return count;
-	} else if (!strcmp(tmp, "all_rings")) {
-		card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
-		return count;
-	} else {
-		return -EINVAL;
+	rc = kstrtoul(buf, 16, &i);
+	if (rc) {
+		rc = -EINVAL;
+		goto out;
 	}
-	return count;
+	switch (i) {
+	case 0:
+		card->options.sniffer = i;
+		break;
+	case 1:
+		qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd);
+		if (card->ssqd.qdioac2 & QETH_SNIFF_AVAIL) {
+			card->options.sniffer = i;
+			if (card->qdio.init_pool.buf_count !=
+					QETH_IN_BUF_COUNT_MAX)
+				qeth_realloc_buffer_pool(card,
+					QETH_IN_BUF_COUNT_MAX);
+		} else
+			rc = -EPERM;
+		break;
+	default:
+		rc = -EINVAL;
+	}
+out:
+	mutex_unlock(&card->conf_mutex);
+	return rc ? rc : count;
 }
 
-static DEVICE_ATTR(broadcast_mode, 0644, qeth_l3_dev_broadcast_mode_show,
-		   qeth_l3_dev_broadcast_mode_store);
+static DEVICE_ATTR(sniffer, 0644, qeth_l3_dev_sniffer_show,
+		qeth_l3_dev_sniffer_store);
 
-static ssize_t qeth_l3_dev_canonical_macaddr_show(struct device *dev,
-				struct device_attribute *attr, char *buf)
+
+static ssize_t qeth_l3_dev_hsuid_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
 {
 	struct qeth_card *card = dev_get_drvdata(dev);
+	char tmp_hsuid[9];
 
 	if (!card)
 		return -EINVAL;
 
-	if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
-	      (card->info.link_type == QETH_LINK_TYPE_LANE_TR)))
-		return sprintf(buf, "n/a\n");
+	if (card->info.type != QETH_CARD_TYPE_IQD)
+		return -EPERM;
+
+	if (card->state == CARD_STATE_DOWN)
+		return -EPERM;
 
-	return sprintf(buf, "%i\n", (card->options.macaddr_mode ==
-				     QETH_TR_MACADDR_CANONICAL)? 1:0);
+	memcpy(tmp_hsuid, card->options.hsuid, sizeof(tmp_hsuid));
+	EBCASC(tmp_hsuid, 8);
+	return sprintf(buf, "%s\n", tmp_hsuid);
 }
 
-static ssize_t qeth_l3_dev_canonical_macaddr_store(struct device *dev,
+static ssize_t qeth_l3_dev_hsuid_store(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct qeth_card *card = dev_get_drvdata(dev);
+	struct qeth_ipaddr *addr;
 	char *tmp;
 	int i;
 
 	if (!card)
 		return -EINVAL;
 
-	if ((card->state != CARD_STATE_DOWN) &&
-	    (card->state != CARD_STATE_RECOVER))
+	if (card->info.type != QETH_CARD_TYPE_IQD)
+		return -EPERM;
+	if (card->state != CARD_STATE_DOWN &&
+	    card->state != CARD_STATE_RECOVER)
+		return -EPERM;
+	if (card->options.sniffer)
+		return -EPERM;
+	if (card->options.cq == QETH_CQ_NOTAVAILABLE)
 		return -EPERM;
 
-	if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
-	      (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) {
+	tmp = strsep((char **)&buf, "\n");
+	if (strlen(tmp) > 8)
 		return -EINVAL;
-	}
 
-	i = simple_strtoul(buf, &tmp, 16);
-	if ((i == 0) || (i == 1))
-		card->options.macaddr_mode = i?
-			QETH_TR_MACADDR_CANONICAL :
-			QETH_TR_MACADDR_NONCANONICAL;
-	else {
-		return -EINVAL;
+	if (card->options.hsuid[0]) {
+		/* delete old ip address */
+		addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
+		if (addr != NULL) {
+			addr->u.a6.addr.s6_addr32[0] = 0xfe800000;
+			addr->u.a6.addr.s6_addr32[1] = 0x00000000;
+			for (i = 8; i < 16; i++)
+				addr->u.a6.addr.s6_addr[i] =
+					card->options.hsuid[i - 8];
+			addr->u.a6.pfxlen = 0;
+			addr->type = QETH_IP_TYPE_NORMAL;
+		} else
+			return -ENOMEM;
+		if (!qeth_l3_delete_ip(card, addr))
+			kfree(addr);
+		qeth_l3_set_ip_addr_list(card);
 	}
-	return count;
-}
-
-static DEVICE_ATTR(canonical_macaddr, 0644, qeth_l3_dev_canonical_macaddr_show,
-		   qeth_l3_dev_canonical_macaddr_store);
-
-static ssize_t qeth_l3_dev_checksum_show(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	struct qeth_card *card = dev_get_drvdata(dev);
-
-	if (!card)
-		return -EINVAL;
-
-	return sprintf(buf, "%s checksumming\n",
-			qeth_l3_get_checksum_str(card));
-}
-
-static ssize_t qeth_l3_dev_checksum_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct qeth_card *card = dev_get_drvdata(dev);
-	char *tmp;
 
-	if (!card)
-		return -EINVAL;
+	if (strlen(tmp) == 0) {
+		/* delete ip address only */
+		card->options.hsuid[0] = '\0';
+		if (card->dev)
+			memcpy(card->dev->perm_addr, card->options.hsuid, 9);
+		qeth_configure_cq(card, QETH_CQ_DISABLED);
+		return count;
+	}
 
-	if ((card->state != CARD_STATE_DOWN) &&
-	    (card->state != CARD_STATE_RECOVER))
+	if (qeth_configure_cq(card, QETH_CQ_ENABLED))
 		return -EPERM;
 
-	tmp = strsep((char **) &buf, "\n");
-	if (!strcmp(tmp, "sw_checksumming"))
-		card->options.checksum_type = SW_CHECKSUMMING;
-	else if (!strcmp(tmp, "hw_checksumming"))
-		card->options.checksum_type = HW_CHECKSUMMING;
-	else if (!strcmp(tmp, "no_checksumming"))
-		card->options.checksum_type = NO_CHECKSUMMING;
-	else {
-		return -EINVAL;
-	}
+	snprintf(card->options.hsuid, sizeof(card->options.hsuid),
+		 "%-8s", tmp);
+	ASCEBC(card->options.hsuid, 8);
+	if (card->dev)
+		memcpy(card->dev->perm_addr, card->options.hsuid, 9);
+
+	addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
+	if (addr != NULL) {
+		addr->u.a6.addr.s6_addr32[0] = 0xfe800000;
+		addr->u.a6.addr.s6_addr32[1] = 0x00000000;
+		for (i = 8; i < 16; i++)
+			addr->u.a6.addr.s6_addr[i] = card->options.hsuid[i - 8];
+		addr->u.a6.pfxlen = 0;
+		addr->type = QETH_IP_TYPE_NORMAL;
+	} else
+		return -ENOMEM;
+	if (!qeth_l3_add_ip(card, addr))
+		kfree(addr);
+	qeth_l3_set_ip_addr_list(card);
+
 	return count;
 }
 
-static DEVICE_ATTR(checksumming, 0644, qeth_l3_dev_checksum_show,
-		qeth_l3_dev_checksum_store);
+static DEVICE_ATTR(hsuid, 0644, qeth_l3_dev_hsuid_show,
+		   qeth_l3_dev_hsuid_store);
+
 
 static struct attribute *qeth_l3_device_attrs[] = {
 	&dev_attr_route4.attr,
 	&dev_attr_route6.attr,
 	&dev_attr_fake_broadcast.attr,
-	&dev_attr_broadcast_mode.attr,
-	&dev_attr_canonical_macaddr.attr,
-	&dev_attr_checksumming.attr,
+	&dev_attr_sniffer.attr,
+	&dev_attr_hsuid.attr,
 	NULL,
 };
 
@@ -354,26 +370,45 @@ static ssize_t qeth_l3_dev_ipato_enable_store(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct qeth_card *card = dev_get_drvdata(dev);
+	struct qeth_ipaddr *tmpipa, *t;
 	char *tmp;
+	int rc = 0;
 
 	if (!card)
 		return -EINVAL;
 
+	mutex_lock(&card->conf_mutex);
 	if ((card->state != CARD_STATE_DOWN) &&
-	    (card->state != CARD_STATE_RECOVER))
-		return -EPERM;
+	    (card->state != CARD_STATE_RECOVER)) {
+		rc = -EPERM;
+		goto out;
+	}
 
 	tmp = strsep((char **) &buf, "\n");
 	if (!strcmp(tmp, "toggle")) {
 		card->ipato.enabled = (card->ipato.enabled)? 0 : 1;
 	} else if (!strcmp(tmp, "1")) {
 		card->ipato.enabled = 1;
+		list_for_each_entry_safe(tmpipa, t, card->ip_tbd_list, entry) {
+			if ((tmpipa->type == QETH_IP_TYPE_NORMAL) &&
+				qeth_l3_is_addr_covered_by_ipato(card, tmpipa))
+				tmpipa->set_flags |=
+					QETH_IPA_SETIP_TAKEOVER_FLAG;
+		}
+
 	} else if (!strcmp(tmp, "0")) {
 		card->ipato.enabled = 0;
-	} else {
-		return -EINVAL;
-	}
-	return count;
+		list_for_each_entry_safe(tmpipa, t, card->ip_tbd_list, entry) {
+			if (tmpipa->set_flags &
+				QETH_IPA_SETIP_TAKEOVER_FLAG)
+				tmpipa->set_flags &=
+					~QETH_IPA_SETIP_TAKEOVER_FLAG;
+		}
+	} else
+		rc = -EINVAL;
+out:
+	mutex_unlock(&card->conf_mutex);
+	return rc ? rc : count;
 }
 
 static QETH_DEVICE_ATTR(ipato_enable, enable, 0644,
@@ -397,10 +432,12 @@ static ssize_t qeth_l3_dev_ipato_invert4_store(struct device *dev,
 {
 	struct qeth_card *card = dev_get_drvdata(dev);
 	char *tmp;
+	int rc = 0;
 
 	if (!card)
 		return -EINVAL;
 
+	mutex_lock(&card->conf_mutex);
 	tmp = strsep((char **) &buf, "\n");
 	if (!strcmp(tmp, "toggle")) {
 		card->ipato.invert4 = (card->ipato.invert4)? 0 : 1;
@@ -408,10 +445,10 @@ static ssize_t qeth_l3_dev_ipato_invert4_store(struct device *dev,
 		card->ipato.invert4 = 1;
 	} else if (!strcmp(tmp, "0")) {
 		card->ipato.invert4 = 0;
-	} else {
-		return -EINVAL;
-	}
-	return count;
+	} else
+		rc = -EINVAL;
+	mutex_unlock(&card->conf_mutex);
+	return rc ? rc : count;
 }
 
 static QETH_DEVICE_ATTR(ipato_invert4, invert4, 0644,
@@ -493,27 +530,28 @@ static ssize_t qeth_l3_dev_ipato_add_store(const char *buf, size_t count,
 	struct qeth_ipato_entry *ipatoe;
 	u8 addr[16];
 	int mask_bits;
-	int rc;
+	int rc = 0;
 
+	mutex_lock(&card->conf_mutex);
 	rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits);
 	if (rc)
-		return rc;
+		goto out;
 
 	ipatoe = kzalloc(sizeof(struct qeth_ipato_entry), GFP_KERNEL);
 	if (!ipatoe) {
-		return -ENOMEM;
+		rc = -ENOMEM;
+		goto out;
 	}
 	ipatoe->proto = proto;
 	memcpy(ipatoe->addr, addr, (proto == QETH_PROT_IPV4)? 4:16);
 	ipatoe->mask_bits = mask_bits;
 
 	rc = qeth_l3_add_ipato_entry(card, ipatoe);
-	if (rc) {
+	if (rc)
 		kfree(ipatoe);
-		return rc;
-	}
-
-	return count;
+out:
+	mutex_unlock(&card->conf_mutex);
+	return rc ? rc : count;
 }
 
 static ssize_t qeth_l3_dev_ipato_add4_store(struct device *dev,
@@ -536,15 +574,14 @@ static ssize_t qeth_l3_dev_ipato_del_store(const char *buf, size_t count,
 {
 	u8 addr[16];
 	int mask_bits;
-	int rc;
+	int rc = 0;
 
+	mutex_lock(&card->conf_mutex);
 	rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits);
-	if (rc)
-		return rc;
-
-	qeth_l3_del_ipato_entry(card, proto, addr, mask_bits);
-
-	return count;
+	if (!rc)
+		qeth_l3_del_ipato_entry(card, proto, addr, mask_bits);
+	mutex_unlock(&card->conf_mutex);
+	return rc ? rc : count;
 }
 
 static ssize_t qeth_l3_dev_ipato_del4_store(struct device *dev,
@@ -577,10 +614,12 @@ static ssize_t qeth_l3_dev_ipato_invert6_store(struct device *dev,
 {
 	struct qeth_card *card = dev_get_drvdata(dev);
 	char *tmp;
+	int rc = 0;
 
 	if (!card)
 		return -EINVAL;
 
+	mutex_lock(&card->conf_mutex);
 	tmp = strsep((char **) &buf, "\n");
 	if (!strcmp(tmp, "toggle")) {
 		card->ipato.invert6 = (card->ipato.invert6)? 0 : 1;
@@ -588,10 +627,10 @@ static ssize_t qeth_l3_dev_ipato_invert6_store(struct device *dev,
 		card->ipato.invert6 = 1;
 	} else if (!strcmp(tmp, "0")) {
 		card->ipato.invert6 = 0;
-	} else {
-		return -EINVAL;
-	}
-	return count;
+	} else
+		rc = -EINVAL;
+	mutex_unlock(&card->conf_mutex);
+	return rc ? rc : count;
 }
 
 static QETH_DEVICE_ATTR(ipato_invert6, invert6, 0644,
@@ -713,15 +752,12 @@ static ssize_t qeth_l3_dev_vipa_add_store(const char *buf, size_t count,
 	u8 addr[16] = {0, };
 	int rc;
 
+	mutex_lock(&card->conf_mutex);
 	rc = qeth_l3_parse_vipae(buf, proto, addr);
-	if (rc)
-		return rc;
-
-	rc = qeth_l3_add_vipa(card, proto, addr);
-	if (rc)
-		return rc;
-
-	return count;
+	if (!rc)
+		rc = qeth_l3_add_vipa(card, proto, addr);
+	mutex_unlock(&card->conf_mutex);
+	return rc ? rc : count;
 }
 
 static ssize_t qeth_l3_dev_vipa_add4_store(struct device *dev,
@@ -745,13 +781,12 @@ static ssize_t qeth_l3_dev_vipa_del_store(const char *buf, size_t count,
 	u8 addr[16];
 	int rc;
 
+	mutex_lock(&card->conf_mutex);
 	rc = qeth_l3_parse_vipae(buf, proto, addr);
-	if (rc)
-		return rc;
-
-	qeth_l3_del_vipa(card, proto, addr);
-
-	return count;
+	if (!rc)
+		qeth_l3_del_vipa(card, proto, addr);
+	mutex_unlock(&card->conf_mutex);
+	return rc ? rc : count;
 }
 
 static ssize_t qeth_l3_dev_vipa_del4_store(struct device *dev,
@@ -879,15 +914,12 @@ static ssize_t qeth_l3_dev_rxip_add_store(const char *buf, size_t count,
 	u8 addr[16] = {0, };
 	int rc;
 
+	mutex_lock(&card->conf_mutex);
 	rc = qeth_l3_parse_rxipe(buf, proto, addr);
-	if (rc)
-		return rc;
-
-	rc = qeth_l3_add_rxip(card, proto, addr);
-	if (rc)
-		return rc;
-
-	return count;
+	if (!rc)
+		rc = qeth_l3_add_rxip(card, proto, addr);
+	mutex_unlock(&card->conf_mutex);
+	return rc ? rc : count;
 }
 
 static ssize_t qeth_l3_dev_rxip_add4_store(struct device *dev,
@@ -911,13 +943,12 @@ static ssize_t qeth_l3_dev_rxip_del_store(const char *buf, size_t count,
 	u8 addr[16];
 	int rc;
 
+	mutex_lock(&card->conf_mutex);
 	rc = qeth_l3_parse_rxipe(buf, proto, addr);
-	if (rc)
-		return rc;
-
-	qeth_l3_del_rxip(card, proto, addr);
-
-	return count;
+	if (!rc)
+		qeth_l3_del_rxip(card, proto, addr);
+	mutex_unlock(&card->conf_mutex);
+	return rc ? rc : count;
 }
 
 static ssize_t qeth_l3_dev_rxip_del4_store(struct device *dev,