Merge branch 's390-next'

Julian Wiedmann says:

====================
s390/net: updates 2018-04-26

please apply the following patches to net-next. There's the usual
cleanups & small improvements, and Kittipon adds HW offload support
for IPv6 checksumming.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/s390/net/lcs.c

@@ -1928,6 +1928,8 @@ lcs_portno_store (struct device *dev, struct device_attribute *attr, const char
 		return -EINVAL;
         /* TODO: sanity checks */
         card->portno = value;
+	if (card->dev)
+		card->dev->dev_port = card->portno;
 
         return count;
 
@@ -2158,6 +2160,7 @@ lcs_new_device(struct ccwgroup_device *ccwgdev)
 	card->dev = dev;
 	card->dev->ml_priv = card;
 	card->dev->netdev_ops = &lcs_netdev_ops;
+	card->dev->dev_port = card->portno;
 	memcpy(card->dev->dev_addr, card->mac, LCS_MAC_LENGTH);
 #ifdef CONFIG_IP_MULTICAST
 	if (!lcs_check_multicast_support(card))

drivers/s390/net/qeth_core.h

@@ -148,6 +148,7 @@ struct qeth_perf_stats {
 	unsigned int tx_csum;
 	unsigned int tx_lin;
 	unsigned int tx_linfail;
+	unsigned int rx_csum;
 };
 
 /* Routing stuff */
@@ -712,9 +713,6 @@ enum qeth_discipline_id {
 
 struct qeth_discipline {
 	const struct device_type *devtype;
-	void (*start_poll)(struct ccw_device *, int, unsigned long);
-	qdio_handler_t *input_handler;
-	qdio_handler_t *output_handler;
 	int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done);
 	int (*recover)(void *ptr);
 	int (*setup) (struct ccwgroup_device *);
@@ -780,9 +778,9 @@ struct qeth_card {
 	struct qeth_card_options options;
 
 	wait_queue_head_t wait_q;
-	spinlock_t vlanlock;
 	spinlock_t mclock;
 	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
+	struct mutex vid_list_mutex;		/* vid_list */
 	struct list_head vid_list;
 	DECLARE_HASHTABLE(mac_htable, 4);
 	DECLARE_HASHTABLE(ip_htable, 4);
@@ -867,6 +865,32 @@ static inline int qeth_get_ip_version(struct sk_buff *skb)
 	}
 }
 
+static inline void qeth_rx_csum(struct qeth_card *card, struct sk_buff *skb,
+				u8 flags)
+{
+	if ((card->dev->features & NETIF_F_RXCSUM) &&
+	    (flags & QETH_HDR_EXT_CSUM_TRANSP_REQ)) {
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+		if (card->options.performance_stats)
+			card->perf_stats.rx_csum++;
+	} else {
+		skb->ip_summed = CHECKSUM_NONE;
+	}
+}
+
+static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv)
+{
+	*flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
+	if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) ||
+	    (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP))
+		*flags |= QETH_HDR_EXT_UDP;
+	if (ipv == 4) {
+		/* some HW requires combined L3+L4 csum offload: */
+		*flags |= QETH_HDR_EXT_CSUM_HDR_REQ;
+		ip_hdr(skb)->check = 0;
+	}
+}
+
 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
 		struct qeth_buffer_pool_entry *entry)
 {
@@ -879,6 +903,27 @@ static inline int qeth_is_diagass_supported(struct qeth_card *card,
 	return card->info.diagass_support & (__u32)cmd;
 }
 
+int qeth_send_simple_setassparms_prot(struct qeth_card *card,
+				      enum qeth_ipa_funcs ipa_func,
+				      u16 cmd_code, long data,
+				      enum qeth_prot_versions prot);
+/* IPv4 variant */
+static inline int qeth_send_simple_setassparms(struct qeth_card *card,
+					       enum qeth_ipa_funcs ipa_func,
+					       u16 cmd_code, long data)
+{
+	return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
+						 data, QETH_PROT_IPV4);
+}
+
+static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card,
+						  enum qeth_ipa_funcs ipa_func,
+						  u16 cmd_code, long data)
+{
+	return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code,
+						 data, QETH_PROT_IPV6);
+}
+
 extern struct qeth_discipline qeth_l2_discipline;
 extern struct qeth_discipline qeth_l3_discipline;
 extern const struct attribute_group *qeth_generic_attr_groups[];
@@ -921,13 +966,7 @@ struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
 		struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *,
 		struct qeth_hdr **);
 void qeth_schedule_recovery(struct qeth_card *);
-void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long);
 int qeth_poll(struct napi_struct *napi, int budget);
-void qeth_qdio_input_handler(struct ccw_device *,
-		unsigned int, unsigned int, int,
-		int, unsigned long);
-void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
-			int, int, int, unsigned long);
 void qeth_clear_ipacmd_list(struct qeth_card *);
 int qeth_qdio_clear_card(struct qeth_card *, int);
 void qeth_clear_working_pool_list(struct qeth_card *);
@@ -979,8 +1018,6 @@ int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
 int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot);
 void qeth_trace_features(struct qeth_card *);
 void qeth_close_dev(struct qeth_card *);
-int qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
-				 __u16, long);
 int qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, __u16,
 			  long,
 			  int (*reply_cb)(struct qeth_card *,

drivers/s390/net/qeth_core_main.c

@@ -1467,13 +1467,13 @@ static int qeth_setup_card(struct qeth_card *card)
 	card->lan_online = 0;
 	card->read_or_write_problem = 0;
 	card->dev = NULL;
-	spin_lock_init(&card->vlanlock);
 	spin_lock_init(&card->mclock);
 	spin_lock_init(&card->lock);
 	spin_lock_init(&card->ip_lock);
 	spin_lock_init(&card->thread_mask_lock);
 	mutex_init(&card->conf_mutex);
 	mutex_init(&card->discipline_mutex);
+	mutex_init(&card->vid_list_mutex);
 	card->thread_start_mask = 0;
 	card->thread_allowed_mask = 0;
 	card->thread_running_mask = 0;
@@ -3588,7 +3588,7 @@ static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
 	}
 }
 
-void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue,
+static void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue,
 				 unsigned long card_ptr)
 {
 	struct qeth_card *card = (struct qeth_card *)card_ptr;
@@ -3596,7 +3596,6 @@ void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue,
 	if (card->dev && (card->dev->flags & IFF_UP))
 		napi_schedule(&card->napi);
 }
-EXPORT_SYMBOL_GPL(qeth_qdio_start_poll);
 
 int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq)
 {
@@ -3698,8 +3697,9 @@ static void qeth_qdio_cq_handler(struct qeth_card *card,
 	return;
 }
 
-void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err,
-		unsigned int queue, int first_elem, int count,
+static void qeth_qdio_input_handler(struct ccw_device *ccwdev,
+				    unsigned int qdio_err, int queue,
+				    int first_elem, int count,
 				    unsigned long card_ptr)
 {
 	struct qeth_card *card = (struct qeth_card *)card_ptr;
@@ -3711,14 +3711,12 @@ void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err,
 		qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count);
 	else if (qdio_err)
 		qeth_schedule_recovery(card);
-
-
 }
-EXPORT_SYMBOL_GPL(qeth_qdio_input_handler);
 
-void qeth_qdio_output_handler(struct ccw_device *ccwdev,
-		unsigned int qdio_error, int __queue, int first_element,
-		int count, unsigned long card_ptr)
+static void qeth_qdio_output_handler(struct ccw_device *ccwdev,
+				     unsigned int qdio_error, int __queue,
+				     int first_element, int count,
+				     unsigned long card_ptr)
 {
 	struct qeth_card *card        = (struct qeth_card *) card_ptr;
 	struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
@@ -3787,7 +3785,6 @@ void qeth_qdio_output_handler(struct ccw_device *ccwdev,
 		card->perf_stats.outbound_handler_time += qeth_get_micros() -
 			card->perf_stats.outbound_handler_start_time;
 }
-EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
 
 /* We cannot use outbound queue 3 for unicast packets on HiperSockets */
 static inline int qeth_cut_iqd_prio(struct qeth_card *card, int queue_num)
@@ -4995,7 +4992,7 @@ static int qeth_qdio_establish(struct qeth_card *card)
 		goto out_free_in_sbals;
 	}
 	for (i = 0; i < card->qdio.no_in_queues; ++i)
-		queue_start_poll[i] = card->discipline->start_poll;
+		queue_start_poll[i] = qeth_qdio_start_poll;
 
 	qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll);
 
@@ -5019,8 +5016,8 @@ static int qeth_qdio_establish(struct qeth_card *card)
 	init_data.qib_param_field        = qib_param_field;
 	init_data.no_input_qs            = card->qdio.no_in_queues;
 	init_data.no_output_qs           = card->qdio.no_out_queues;
-	init_data.input_handler 	 = card->discipline->input_handler;
-	init_data.output_handler	 = card->discipline->output_handler;
+	init_data.input_handler		 = qeth_qdio_input_handler;
+	init_data.output_handler	 = qeth_qdio_output_handler;
 	init_data.queue_start_poll_array = queue_start_poll;
 	init_data.int_parm               = (unsigned long) card;
 	init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
@@ -5204,6 +5201,11 @@ int qeth_core_hardsetup_card(struct qeth_card *card)
 	rc = qeth_query_ipassists(card, QETH_PROT_IPV4);
 	if (rc == -ENOMEM)
 		goto out;
+	if (qeth_is_supported(card, IPA_IPV6)) {
+		rc = qeth_query_ipassists(card, QETH_PROT_IPV6);
+		if (rc == -ENOMEM)
+			goto out;
+	}
 	if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
 		rc = qeth_query_setadapterparms(card);
 		if (rc < 0) {
@@ -5511,26 +5513,26 @@ int qeth_send_setassparms(struct qeth_card *card,
 }
 EXPORT_SYMBOL_GPL(qeth_send_setassparms);
 
-int qeth_send_simple_setassparms(struct qeth_card *card,
+int qeth_send_simple_setassparms_prot(struct qeth_card *card,
 				      enum qeth_ipa_funcs ipa_func,
-				 __u16 cmd_code, long data)
+				      u16 cmd_code, long data,
+				      enum qeth_prot_versions prot)
 {
 	int rc;
 	int length = 0;
 	struct qeth_cmd_buffer *iob;
 
-	QETH_CARD_TEXT(card, 4, "simassp4");
+	QETH_CARD_TEXT_(card, 4, "simassp%i", prot);
 	if (data)
 		length = sizeof(__u32);
-	iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
-				       length, QETH_PROT_IPV4);
+	iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, length, prot);
 	if (!iob)
 		return -ENOMEM;
 	rc = qeth_send_setassparms(card, iob, length, data,
 				   qeth_setassparms_cb, NULL);
 	return rc;
 }
-EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms);
+EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms_prot);
 
 static void qeth_unregister_dbf_views(void)
 {
@@ -6008,7 +6010,8 @@ static struct {
 	{"tx lin"},
 	{"tx linfail"},
 	{"cq handler count"},
-	{"cq handler time"}
+	{"cq handler time"},
+	{"rx csum"}
 };
 
 int qeth_core_get_sset_count(struct net_device *dev, int stringset)
@@ -6070,6 +6073,7 @@ void qeth_core_get_ethtool_stats(struct net_device *dev,
 	data[35] = card->perf_stats.tx_linfail;
 	data[36] = card->perf_stats.cq_cnt;
 	data[37] = card->perf_stats.cq_time;
+	data[38] = card->perf_stats.rx_csum;
 }
 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
 
@@ -6326,14 +6330,15 @@ static int qeth_ipa_checksum_run_cmd_cb(struct qeth_card *card,
 static int qeth_ipa_checksum_run_cmd(struct qeth_card *card,
 				     enum qeth_ipa_funcs ipa_func,
 				     __u16 cmd_code, long data,
-				     struct qeth_checksum_cmd *chksum_cb)
+				     struct qeth_checksum_cmd *chksum_cb,
+				     enum qeth_prot_versions prot)
 {
 	struct qeth_cmd_buffer *iob;
 	int rc = -ENOMEM;
 
 	QETH_CARD_TEXT(card, 4, "chkdocmd");
 	iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
-				       sizeof(__u32), QETH_PROT_IPV4);
+				       sizeof(__u32), prot);
 	if (iob)
 		rc = qeth_send_setassparms(card, iob, sizeof(__u32), data,
 					   qeth_ipa_checksum_run_cmd_cb,
@@ -6341,16 +6346,17 @@ static int qeth_ipa_checksum_run_cmd(struct qeth_card *card,
 	return rc;
 }
 
-static int qeth_send_checksum_on(struct qeth_card *card, int cstype)
+static int qeth_send_checksum_on(struct qeth_card *card, int cstype,
+				 enum qeth_prot_versions prot)
 {
-	const __u32 required_features = QETH_IPA_CHECKSUM_IP_HDR |
-					QETH_IPA_CHECKSUM_UDP |
-					QETH_IPA_CHECKSUM_TCP;
+	u32 required_features = QETH_IPA_CHECKSUM_UDP | QETH_IPA_CHECKSUM_TCP;
 	struct qeth_checksum_cmd chksum_cb;
 	int rc;
 
+	if (prot == QETH_PROT_IPV4)
+		required_features |= QETH_IPA_CHECKSUM_IP_HDR;
 	rc = qeth_ipa_checksum_run_cmd(card, cstype, IPA_CMD_ASS_START, 0,
-				       &chksum_cb);
+				       &chksum_cb, prot);
 	if (!rc) {
 		if ((required_features & chksum_cb.supported) !=
 		    required_features)
@@ -6362,37 +6368,42 @@ static int qeth_send_checksum_on(struct qeth_card *card, int cstype)
 				 QETH_CARD_IFNAME(card));
 	}
 	if (rc) {
-		qeth_send_simple_setassparms(card, cstype, IPA_CMD_ASS_STOP, 0);
+		qeth_send_simple_setassparms_prot(card, cstype,
+						  IPA_CMD_ASS_STOP, 0, prot);
 		dev_warn(&card->gdev->dev,
-			 "Starting HW checksumming for %s failed, using SW checksumming\n",
-			 QETH_CARD_IFNAME(card));
+			 "Starting HW IPv%d checksumming for %s failed, using SW checksumming\n",
+			 prot, QETH_CARD_IFNAME(card));
 		return rc;
 	}
 	rc = qeth_ipa_checksum_run_cmd(card, cstype, IPA_CMD_ASS_ENABLE,
-				       chksum_cb.supported, &chksum_cb);
+				       chksum_cb.supported, &chksum_cb,
+				       prot);
 	if (!rc) {
 		if ((required_features & chksum_cb.enabled) !=
 		    required_features)
 			rc = -EIO;
 	}
 	if (rc) {
-		qeth_send_simple_setassparms(card, cstype, IPA_CMD_ASS_STOP, 0);
+		qeth_send_simple_setassparms_prot(card, cstype,
+						  IPA_CMD_ASS_STOP, 0, prot);
 		dev_warn(&card->gdev->dev,
-			 "Enabling HW checksumming for %s failed, using SW checksumming\n",
-			 QETH_CARD_IFNAME(card));
+			 "Enabling HW IPv%d checksumming for %s failed, using SW checksumming\n",
+			 prot, QETH_CARD_IFNAME(card));
 		return rc;
 	}
 
-	dev_info(&card->gdev->dev, "HW Checksumming (%sbound) enabled\n",
-		 cstype == IPA_INBOUND_CHECKSUM ? "in" : "out");
+	dev_info(&card->gdev->dev, "HW Checksumming (%sbound IPv%d) enabled\n",
+		 cstype == IPA_INBOUND_CHECKSUM ? "in" : "out", prot);
 	return 0;
 }
 
-static int qeth_set_ipa_csum(struct qeth_card *card, int on, int cstype)
+static int qeth_set_ipa_csum(struct qeth_card *card, bool on, int cstype,
+			     enum qeth_prot_versions prot)
 {
-	int rc = (on) ? qeth_send_checksum_on(card, cstype)
-		      : qeth_send_simple_setassparms(card, cstype,
-						     IPA_CMD_ASS_STOP, 0);
+	int rc = (on) ? qeth_send_checksum_on(card, cstype, prot)
+		      : qeth_send_simple_setassparms_prot(card, cstype,
+							  IPA_CMD_ASS_STOP, 0,
+							  prot);
 	return rc ? -EIO : 0;
 }
 
@@ -6419,8 +6430,31 @@ static int qeth_set_ipa_tso(struct qeth_card *card, int on)
 	return rc;
 }
 
-#define QETH_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_TSO)
+static int qeth_set_ipa_rx_csum(struct qeth_card *card, bool on)
+{
+	int rc_ipv4 = (on) ? -EOPNOTSUPP : 0;
+	int rc_ipv6;
+
+	if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
+		rc_ipv4 = qeth_set_ipa_csum(card, on, IPA_INBOUND_CHECKSUM,
+					    QETH_PROT_IPV4);
+	if (!qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6))
+		/* no/one Offload Assist available, so the rc is trivial */
+		return rc_ipv4;
+
+	rc_ipv6 = qeth_set_ipa_csum(card, on, IPA_INBOUND_CHECKSUM,
+				    QETH_PROT_IPV6);
 
+	if (on)
+		/* enable: success if any Assist is active */
+		return (rc_ipv6) ? rc_ipv4 : 0;
+
+	/* disable: failure if any Assist is still active */
+	return (rc_ipv6) ? rc_ipv6 : rc_ipv4;
+}
+
+#define QETH_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_TSO | \
+			  NETIF_F_IPV6_CSUM)
 /**
  * qeth_recover_features() - Restore device features after recovery
  * @dev:	the recovering net_device
@@ -6455,16 +6489,19 @@ int qeth_set_features(struct net_device *dev, netdev_features_t features)
 	QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
 
 	if ((changed & NETIF_F_IP_CSUM)) {
-		rc = qeth_set_ipa_csum(card,
-				       features & NETIF_F_IP_CSUM ? 1 : 0,
-				       IPA_OUTBOUND_CHECKSUM);
+		rc = qeth_set_ipa_csum(card, features & NETIF_F_IP_CSUM,
+				       IPA_OUTBOUND_CHECKSUM, QETH_PROT_IPV4);
 		if (rc)
 			changed ^= NETIF_F_IP_CSUM;
 	}
-	if ((changed & NETIF_F_RXCSUM)) {
-		rc = qeth_set_ipa_csum(card,
-					features & NETIF_F_RXCSUM ? 1 : 0,
-					IPA_INBOUND_CHECKSUM);
+	if (changed & NETIF_F_IPV6_CSUM) {
+		rc = qeth_set_ipa_csum(card, features & NETIF_F_IPV6_CSUM,
+				       IPA_OUTBOUND_CHECKSUM, QETH_PROT_IPV6);
+		if (rc)
+			changed ^= NETIF_F_IPV6_CSUM;
+	}
+	if (changed & NETIF_F_RXCSUM) {
+		rc = qeth_set_ipa_rx_csum(card, features & NETIF_F_RXCSUM);
 		if (rc)
 			changed ^= NETIF_F_RXCSUM;
 	}
@@ -6491,7 +6528,10 @@ netdev_features_t qeth_fix_features(struct net_device *dev,
 	QETH_DBF_TEXT(SETUP, 2, "fixfeat");
 	if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
 		features &= ~NETIF_F_IP_CSUM;
-	if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
+	if (!qeth_is_supported6(card, IPA_OUTBOUND_CHECKSUM_V6))
+		features &= ~NETIF_F_IPV6_CSUM;
+	if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM) &&
+	    !qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6))
 		features &= ~NETIF_F_RXCSUM;
 	if (!qeth_is_supported(card, IPA_OUTBOUND_TSO))
 		features &= ~NETIF_F_TSO;

drivers/s390/net/qeth_core_mpc.h

@@ -246,6 +246,8 @@ enum qeth_ipa_funcs {
 	IPA_QUERY_ARP_ASSIST	= 0x00040000L,
 	IPA_INBOUND_TSO         = 0x00080000L,
 	IPA_OUTBOUND_TSO        = 0x00100000L,
+	IPA_INBOUND_CHECKSUM_V6 = 0x00400000L,
+	IPA_OUTBOUND_CHECKSUM_V6 = 0x00800000L,
 };
 
 /* SETIP/DELIP IPA Command: ***************************************************/

drivers/s390/net/qeth_core_sys.c

@@ -144,6 +144,8 @@ static ssize_t qeth_dev_portno_store(struct device *dev,
 		goto out;
 	}
 	card->info.portno = portno;
+	if (card->dev)
+		card->dev->dev_port = portno;
 out:
 	mutex_unlock(&card->conf_mutex);
 	return rc ? rc : count;

drivers/s390/net/qeth_l2_main.c

@@ -17,7 +17,6 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/etherdevice.h>
-#include <linux/ip.h>
 #include <linux/list.h>
 #include <linux/hash.h>
 #include <linux/hashtable.h>
@@ -195,23 +194,6 @@ static int qeth_l2_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
 	return RTN_UNSPEC;
 }
 
-static void qeth_l2_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.l2.flags[1] |= QETH_HDR_EXT_UDP;
-	hdr->hdr.l2.flags[1] |= 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_l2_fill_header(struct qeth_hdr *hdr, struct sk_buff *skb,
 				int cast_type, unsigned int data_len)
 {
@@ -297,12 +279,13 @@ static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
 static void qeth_l2_process_vlans(struct qeth_card *card)
 {
 	struct qeth_vlan_vid *id;
+
 	QETH_CARD_TEXT(card, 3, "L2prcvln");
-	spin_lock_bh(&card->vlanlock);
+	mutex_lock(&card->vid_list_mutex);
 	list_for_each_entry(id, &card->vid_list, list) {
 		qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN);
 	}
-	spin_unlock_bh(&card->vlanlock);
+	mutex_unlock(&card->vid_list_mutex);
 }
 
 static int qeth_l2_vlan_rx_add_vid(struct net_device *dev,
@@ -319,7 +302,7 @@ static int qeth_l2_vlan_rx_add_vid(struct net_device *dev,
 		QETH_CARD_TEXT(card, 3, "aidREC");
 		return 0;
 	}
-	id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC);
+	id = kmalloc(sizeof(*id), GFP_KERNEL);
 	if (id) {
 		id->vid = vid;
 		rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
@@ -327,9 +310,9 @@ static int qeth_l2_vlan_rx_add_vid(struct net_device *dev,
 			kfree(id);
 			return rc;
 		}
-		spin_lock_bh(&card->vlanlock);
+		mutex_lock(&card->vid_list_mutex);
 		list_add_tail(&id->list, &card->vid_list);
-		spin_unlock_bh(&card->vlanlock);
+		mutex_unlock(&card->vid_list_mutex);
 	} else {
 		return -ENOMEM;
 	}
@@ -348,7 +331,7 @@ static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev,
 		QETH_CARD_TEXT(card, 3, "kidREC");
 		return 0;
 	}
-	spin_lock_bh(&card->vlanlock);
+	mutex_lock(&card->vid_list_mutex);
 	list_for_each_entry(id, &card->vid_list, list) {
 		if (id->vid == vid) {
 			list_del(&id->list);
@@ -356,7 +339,7 @@ static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev,
 			break;
 		}
 	}
-	spin_unlock_bh(&card->vlanlock);
+	mutex_unlock(&card->vid_list_mutex);
 	if (tmpid) {
 		rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
 		kfree(tmpid);
@@ -423,15 +406,7 @@ static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
 		switch (hdr->hdr.l2.id) {
 		case QETH_HEADER_TYPE_LAYER2:
 			skb->protocol = eth_type_trans(skb, skb->dev);
-			if ((card->dev->features & NETIF_F_RXCSUM)
-			   && ((hdr->hdr.l2.flags[1] &
-				(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;
+			qeth_rx_csum(card, skb, hdr->hdr.l2.flags[1]);
 			if (skb->protocol == htons(ETH_P_802_2))
 				*((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
 			len = skb->len;
@@ -464,7 +439,6 @@ static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
 static int qeth_l2_request_initial_mac(struct qeth_card *card)
 {
 	int rc = 0;
-	char vendor_pre[] = {0x02, 0x00, 0x00};
 
 	QETH_DBF_TEXT(SETUP, 2, "l2reqmac");
 	QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card));
@@ -484,16 +458,20 @@ static int qeth_l2_request_initial_mac(struct qeth_card *card)
 	    card->info.type == QETH_CARD_TYPE_OSX ||
 	    card->info.guestlan) {
 		rc = qeth_setadpparms_change_macaddr(card);
-		if (rc) {
-			QETH_DBF_MESSAGE(2, "couldn't get MAC address on "
-				"device %s: x%x\n", CARD_BUS_ID(card), rc);
+		if (!rc)
+			goto out;
+		QETH_DBF_MESSAGE(2, "READ_MAC Assist failed on device %s: x%x\n",
+				 CARD_BUS_ID(card), rc);
 		QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc);
-			return rc;
-		}
-	} else {
-		eth_random_addr(card->dev->dev_addr);
-		memcpy(card->dev->dev_addr, vendor_pre, 3);
+		/* fall back once more: */
 	}
+
+	/* some devices don't support a custom MAC address: */
+	if (card->info.type == QETH_CARD_TYPE_OSM ||
+	    card->info.type == QETH_CARD_TYPE_OSX)
+		return (rc) ? rc : -EADDRNOTAVAIL;
+	eth_hw_addr_random(card->dev);
+
 out:
 	QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, card->dev->addr_len);
 	return 0;
@@ -685,7 +663,8 @@ static int qeth_l2_xmit_iqd(struct qeth_card *card, struct sk_buff *skb,
 }
 
 static int qeth_l2_xmit_osa(struct qeth_card *card, struct sk_buff *skb,
-			    struct qeth_qdio_out_q *queue, int cast_type)
+			    struct qeth_qdio_out_q *queue, int cast_type,
+			    int ipv)
 {
 	int push_len = sizeof(struct qeth_hdr);
 	unsigned int elements, nr_frags;
@@ -723,8 +702,11 @@ static int qeth_l2_xmit_osa(struct qeth_card *card, struct sk_buff *skb,
 		hdr_elements = 1;
 	}
 	qeth_l2_fill_header(hdr, skb, cast_type, skb->len - push_len);
-	if (skb->ip_summed == CHECKSUM_PARTIAL)
-		qeth_l2_hdr_csum(card, hdr, skb);
+	if (skb->ip_summed == CHECKSUM_PARTIAL) {
+		qeth_tx_csum(skb, &hdr->hdr.l2.flags[1], ipv);
+		if (card->options.performance_stats)
+			card->perf_stats.tx_csum++;
+	}
 
 	elements = qeth_get_elements_no(card, skb, hdr_elements, 0);
 	if (!elements) {
@@ -776,6 +758,7 @@ static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb,
 {
 	struct qeth_card *card = dev->ml_priv;
 	int cast_type = qeth_l2_get_cast_type(card, skb);
+	int ipv = qeth_get_ip_version(skb);
 	struct qeth_qdio_out_q *queue;
 	int tx_bytes = skb->len;
 	int rc;
@@ -783,7 +766,7 @@ static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb,
 	if (card->qdio.do_prio_queueing || (cast_type &&
 					card->info.is_multicast_different))
 		queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb,
-					qeth_get_ip_version(skb), cast_type)];
+					ipv, cast_type)];
 	else
 		queue = card->qdio.out_qs[card->qdio.default_out_queue];
 
@@ -806,7 +789,7 @@ static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb,
 		rc = qeth_l2_xmit_iqd(card, skb, queue, cast_type);
 		break;
 	default:
-		rc = qeth_l2_xmit_osa(card, skb, queue, cast_type);
+		rc = qeth_l2_xmit_osa(card, skb, queue, cast_type, ipv);
 	}
 
 	if (!rc) {
@@ -983,6 +966,7 @@ static int qeth_l2_setup_netdev(struct qeth_card *card)
 	card->dev->mtu = card->info.initial_mtu;
 	card->dev->min_mtu = 64;
 	card->dev->max_mtu = ETH_MAX_MTU;
+	card->dev->dev_port = card->info.portno;
 	card->dev->netdev_ops = &qeth_l2_netdev_ops;
 	if (card->info.type == QETH_CARD_TYPE_OSN) {
 		card->dev->ethtool_ops = &qeth_l2_osn_ops;
@@ -1011,11 +995,16 @@ static int qeth_l2_setup_netdev(struct qeth_card *card)
 			card->dev->hw_features |= NETIF_F_IP_CSUM;
 			card->dev->vlan_features |= NETIF_F_IP_CSUM;
 		}
-		if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
+	}
+	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_supported(card, IPA_INBOUND_CHECKSUM) ||
+	    qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) {
 		card->dev->hw_features |= NETIF_F_RXCSUM;
 		card->dev->vlan_features |= NETIF_F_RXCSUM;
 	}
-	}
 
 	card->info.broadcast_capable = 1;
 	qeth_l2_request_initial_mac(card);
@@ -1315,9 +1304,6 @@ static int qeth_l2_control_event(struct qeth_card *card,
 
 struct qeth_discipline qeth_l2_discipline = {
 	.devtype = &qeth_l2_devtype,
-	.start_poll = qeth_qdio_start_poll,
-	.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
-	.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
 	.process_rx_buffer = qeth_l2_process_inbound_buffer,
 	.recover = qeth_l2_recover,
 	.setup = qeth_l2_probe_device,

drivers/s390/net/qeth_l3_main.c

@@ -735,22 +735,6 @@ static int qeth_l3_setadapter_parms(struct qeth_card *card)
 	return rc;
 }
 
-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_get_setassparms_cmd(card, ipa_func, cmd_code,
-				       0, QETH_PROT_IPV6);
-	if (!iob)
-		return -ENOMEM;
-	rc = qeth_send_setassparms(card, iob, 0, 0,
-				   qeth_setassparms_cb, NULL);
-	return rc;
-}
-
 static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
 {
 	int rc;
@@ -851,14 +835,6 @@ static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
 
 	QETH_CARD_TEXT(card, 3, "softipv6");
 
-	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;
-	}
-
 	if (card->info.type == QETH_CARD_TYPE_IQD)
 		goto out;
 
@@ -870,16 +846,16 @@ static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
 			QETH_CARD_IFNAME(card));
 		return rc;
 	}
-	rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
-					       IPA_CMD_ASS_START);
+	rc = qeth_send_simple_setassparms_v6(card, IPA_IPV6,
+					     IPA_CMD_ASS_START, 0);
 	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);
+	rc = qeth_send_simple_setassparms_v6(card, IPA_PASSTHRU,
+					     IPA_CMD_ASS_START, 0);
 	if (rc) {
 		dev_warn(&card->gdev->dev,
 			"Enabling the passthrough mode for %s failed\n",
@@ -1293,91 +1269,6 @@ static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
 	in6_dev_put(in6_dev);
 }
 
-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;
-
-	addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
-	if (!addr)
-		goto out;
-
-	spin_lock_bh(&card->ip_lock);
-
-	for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
-		addr->u.a4.addr = be32_to_cpu(ifa->ifa_address);
-		addr->u.a4.mask = be32_to_cpu(ifa->ifa_mask);
-		addr->type = QETH_IP_TYPE_NORMAL;
-		qeth_l3_delete_ip(card, addr);
-	}
-
-	spin_unlock_bh(&card->ip_lock);
-
-	kfree(addr);
-out:
-	in_dev_put(in_dev);
-}
-
-static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
-					 unsigned short vid)
-{
-	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;
-
-	addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
-	if (!addr)
-		goto out;
-
-	spin_lock_bh(&card->ip_lock);
-
-	list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
-		memcpy(&addr->u.a6.addr, &ifa->addr,
-		       sizeof(struct in6_addr));
-		addr->u.a6.pfxlen = ifa->prefix_len;
-		addr->type = QETH_IP_TYPE_NORMAL;
-		qeth_l3_delete_ip(card, addr);
-	}
-
-	spin_unlock_bh(&card->ip_lock);
-
-	kfree(addr);
-out:
-	in6_dev_put(in6_dev);
-}
-
-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)
 {
@@ -1398,8 +1289,6 @@ static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev,
 		QETH_CARD_TEXT(card, 3, "kidREC");
 		return 0;
 	}
-	/* unregister IP addresses of vlan device */
-	qeth_l3_free_vlan_addresses(card, vid);
 	clear_bit(vid, card->active_vlans);
 	qeth_l3_set_rx_mode(dev);
 	return 0;
@@ -1454,17 +1343,7 @@ static void qeth_l3_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
 		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), tag);
 	}
 
-	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;
+	qeth_rx_csum(card, skb, hdr->hdr.l3.ext_flags);
 }
 
 static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
@@ -2210,23 +2089,6 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
 	rcu_read_unlock();
 }
 
-static 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)
 {
@@ -2418,8 +2280,11 @@ static netdev_tx_t qeth_l3_hard_start_xmit(struct sk_buff *skb,
 			}
 		}
 
-		if (skb->ip_summed == CHECKSUM_PARTIAL)
-			qeth_l3_hdr_csum(card, hdr, new_skb);
+		if (new_skb->ip_summed == CHECKSUM_PARTIAL) {
+			qeth_tx_csum(new_skb, &hdr->hdr.l3.ext_flags, ipv);
+			if (card->options.performance_stats)
+				card->perf_stats.tx_csum++;
+		}
 	}
 
 	elements = use_tso ?
@@ -2620,7 +2485,8 @@ static int qeth_l3_setup_netdev(struct qeth_card *card)
 		    (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;
@@ -2629,8 +2495,7 @@ static int qeth_l3_setup_netdev(struct qeth_card *card)
 		/*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;
+			card->dev->dev_id = card->info.unique_id & 0xffff;
 
 		card->dev->hw_features |= NETIF_F_SG;
 		card->dev->vlan_features |= NETIF_F_SG;
@@ -2642,6 +2507,10 @@ static int qeth_l3_setup_netdev(struct qeth_card *card)
 			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;
 		}
 	} else if (card->info.type == QETH_CARD_TYPE_IQD) {
 		card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
@@ -2663,6 +2532,7 @@ static int qeth_l3_setup_netdev(struct qeth_card *card)
 	card->dev->mtu = card->info.initial_mtu;
 	card->dev->min_mtu = 64;
 	card->dev->max_mtu = ETH_MAX_MTU;
+	card->dev->dev_port = card->info.portno;
 	card->dev->ethtool_ops = &qeth_l3_ethtool_ops;
 	card->dev->features |=	NETIF_F_HW_VLAN_CTAG_TX |
 				NETIF_F_HW_VLAN_CTAG_RX |
@@ -2960,9 +2830,6 @@ static int qeth_l3_control_event(struct qeth_card *card,
 
 struct qeth_discipline qeth_l3_discipline = {
 	.devtype = &qeth_l3_devtype,
-	.start_poll = qeth_qdio_start_poll,
-	.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
-	.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
 	.process_rx_buffer = qeth_l3_process_inbound_buffer,
 	.recover = qeth_l3_recover,
 	.setup = qeth_l3_probe_device,