Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:
 "Highlights:

   1) Support TX_RING in AF_PACKET TPACKET_V3 mode, from Sowmini
      Varadhan.

   2) Simplify classifier state on sk_buff in order to shrink it a bit.
      From Willem de Bruijn.

   3) Introduce SIPHASH and it's usage for secure sequence numbers and
      syncookies. From Jason A. Donenfeld.

   4) Reduce CPU usage for ICMP replies we are going to limit or
      suppress, from Jesper Dangaard Brouer.

   5) Introduce Shared Memory Communications socket layer, from Ursula
      Braun.

   6) Add RACK loss detection and allow it to actually trigger fast
      recovery instead of just assisting after other algorithms have
      triggered it. From Yuchung Cheng.

   7) Add xmit_more and BQL support to mvneta driver, from Simon Guinot.

   8) skb_cow_data avoidance in esp4 and esp6, from Steffen Klassert.

   9) Export MPLS packet stats via netlink, from Robert Shearman.

  10) Significantly improve inet port bind conflict handling, especially
      when an application is restarted and changes it's setting of
      reuseport. From Josef Bacik.

  11) Implement TX batching in vhost_net, from Jason Wang.

  12) Extend the dummy device so that VF (virtual function) features,
      such as configuration, can be more easily tested. From Phil
      Sutter.

  13) Avoid two atomic ops per page on x86 in bnx2x driver, from Eric
      Dumazet.

  14) Add new bpf MAP, implementing a longest prefix match trie. From
      Daniel Mack.

  15) Packet sample offloading support in mlxsw driver, from Yotam Gigi.

  16) Add new aquantia driver, from David VomLehn.

  17) Add bpf tracepoints, from Daniel Borkmann.

  18) Add support for port mirroring to b53 and bcm_sf2 drivers, from
      Florian Fainelli.

  19) Remove custom busy polling in many drivers, it is done in the core
      networking since 4.5 times. From Eric Dumazet.

  20) Support XDP adjust_head in virtio_net, from John Fastabend.

  21) Fix several major holes in neighbour entry confirmation, from
      Julian Anastasov.

  22) Add XDP support to bnxt_en driver, from Michael Chan.

  23) VXLAN offloads for enic driver, from Govindarajulu Varadarajan.

  24) Add IPVTAP driver (IP-VLAN based tap driver) from Sainath Grandhi.

  25) Support GRO in IPSEC protocols, from Steffen Klassert"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1764 commits)
  Revert "ath10k: Search SMBIOS for OEM board file extension"
  net: socket: fix recvmmsg not returning error from sock_error
  bnxt_en: use eth_hw_addr_random()
  bpf: fix unlocking of jited image when module ronx not set
  arch: add ARCH_HAS_SET_MEMORY config
  net: napi_watchdog() can use napi_schedule_irqoff()
  tcp: Revert "tcp: tcp_probe: use spin_lock_bh()"
  net/hsr: use eth_hw_addr_random()
  net: mvpp2: enable building on 64-bit platforms
  net: mvpp2: switch to build_skb() in the RX path
  net: mvpp2: simplify MVPP2_PRS_RI_* definitions
  net: mvpp2: fix indentation of MVPP2_EXT_GLOBAL_CTRL_DEFAULT
  net: mvpp2: remove unused register definitions
  net: mvpp2: simplify mvpp2_bm_bufs_add()
  net: mvpp2: drop useless fields in mvpp2_bm_pool and related code
  net: mvpp2: remove unused 'tx_skb' field of 'struct mvpp2_tx_queue'
  net: mvpp2: release reference to txq_cpu[] entry after unmapping
  net: mvpp2: handle too large value in mvpp2_rx_time_coal_set()
  net: mvpp2: handle too large value handling in mvpp2_rx_pkts_coal_set()
  net: mvpp2: remove useless arguments in mvpp2_rx_{pkts, time}_coal_set
  ...

6 files changed, 212 insertions, 182 deletions

diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index 6d4b68c483f3..e7addea8741b 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -281,8 +281,6 @@ static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
 #define QETH_HIGH_WATERMARK_PACK 5
 #define QETH_WATERMARK_PACK_FUZZ 1
 
-#define QETH_IP_HEADER_SIZE 40
-
 /* large receive scatter gather copy break */
 #define QETH_RX_SG_CB (PAGE_SIZE >> 1)
 #define QETH_RX_PULL_LEN 256
@@ -674,8 +672,6 @@ struct qeth_card_info {
 	int broadcast_capable;
 	int unique_id;
 	struct qeth_card_blkt blkt;
-	__u32 csum_mask;
-	__u32 tx_csum_mask;
 	enum qeth_ipa_promisc_modes promisc_mode;
 	__u32 diagass_support;
 	__u32 hwtrap;
@@ -917,7 +913,6 @@ void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
 int qeth_core_hardsetup_card(struct qeth_card *);
 void qeth_print_status_message(struct qeth_card *);
 int qeth_init_qdio_queues(struct qeth_card *);
-int qeth_send_startlan(struct qeth_card *);
 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
 		  int (*reply_cb)
 		  (struct qeth_card *, struct qeth_reply *, unsigned long),
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index e33558313834..315d8a2db7c0 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -2944,7 +2944,7 @@ int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
 }
 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
 
-int qeth_send_startlan(struct qeth_card *card)
+static int qeth_send_startlan(struct qeth_card *card)
 {
 	int rc;
 	struct qeth_cmd_buffer *iob;
@@ -2957,7 +2957,6 @@ int qeth_send_startlan(struct qeth_card *card)
 	rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
 	return rc;
 }
-EXPORT_SYMBOL_GPL(qeth_send_startlan);
 
 static int qeth_default_setadapterparms_cb(struct qeth_card *card,
 		struct qeth_reply *reply, unsigned long data)
@@ -5087,6 +5086,20 @@ retriable:
 		goto out;
 	}
 
+	rc = qeth_send_startlan(card);
+	if (rc) {
+		QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
+		if (rc == IPA_RC_LAN_OFFLINE) {
+			dev_warn(&card->gdev->dev,
+				"The LAN is offline\n");
+			card->lan_online = 0;
+		} else {
+			rc = -ENODEV;
+			goto out;
+		}
+	} else
+		card->lan_online = 1;
+
 	card->options.ipa4.supported_funcs = 0;
 	card->options.ipa6.supported_funcs = 0;
 	card->options.adp.supported_funcs = 0;
@@ -5098,14 +5111,14 @@ retriable:
 	if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
 		rc = qeth_query_setadapterparms(card);
 		if (rc < 0) {
-			QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
+			QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
 			goto out;
 		}
 	}
 	if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
 		rc = qeth_query_setdiagass(card);
 		if (rc < 0) {
-			QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
+			QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
 			goto out;
 		}
 	}
@@ -5289,18 +5302,6 @@ int qeth_setassparms_cb(struct qeth_card *card,
 		if (cmd->hdr.prot_version == QETH_PROT_IPV6)
 			card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
 	}
-	if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
-	    cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
-		card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
-		QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
-	}
-	if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
-	    cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
-		card->info.tx_csum_mask =
-			cmd->data.setassparms.data.flags_32bit;
-		QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
-	}
-
 	return 0;
 }
 EXPORT_SYMBOL_GPL(qeth_setassparms_cb);
@@ -6060,23 +6061,96 @@ int qeth_core_ethtool_get_settings(struct net_device *netdev,
 }
 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings);
 
+/* Callback to handle checksum offload command reply from OSA card.
+ * Verify that required features have been enabled on the card.
+ * Return error in hdr->return_code as this value is checked by caller.
+ *
+ * Always returns zero to indicate no further messages from the OSA card.
+ */
+static int qeth_ipa_checksum_run_cmd_cb(struct qeth_card *card,
+					struct qeth_reply *reply,
+					unsigned long data)
+{
+	struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
+	struct qeth_checksum_cmd *chksum_cb =
+				(struct qeth_checksum_cmd *)reply->param;
+
+	QETH_CARD_TEXT(card, 4, "chkdoccb");
+	if (cmd->hdr.return_code)
+		return 0;
+
+	memset(chksum_cb, 0, sizeof(*chksum_cb));
+	if (cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
+		chksum_cb->supported =
+				cmd->data.setassparms.data.chksum.supported;
+		QETH_CARD_TEXT_(card, 3, "strt:%x", chksum_cb->supported);
+	}
+	if (cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_ENABLE) {
+		chksum_cb->supported =
+				cmd->data.setassparms.data.chksum.supported;
+		chksum_cb->enabled =
+				cmd->data.setassparms.data.chksum.enabled;
+		QETH_CARD_TEXT_(card, 3, "supp:%x", chksum_cb->supported);
+		QETH_CARD_TEXT_(card, 3, "enab:%x", chksum_cb->enabled);
+	}
+	return 0;
+}
+
+/* Send command to OSA card and check results. */
+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_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);
+	if (iob)
+		rc = qeth_send_setassparms(card, iob, sizeof(__u32), data,
+					   qeth_ipa_checksum_run_cmd_cb,
+					   chksum_cb);
+	return rc;
+}
+
 static int qeth_send_checksum_on(struct qeth_card *card, int cstype)
 {
-	long rxtx_arg;
+	const __u32 required_features = QETH_IPA_CHECKSUM_IP_HDR |
+					QETH_IPA_CHECKSUM_UDP |
+					QETH_IPA_CHECKSUM_TCP;
+	struct qeth_checksum_cmd chksum_cb;
 	int rc;
 
-	rc = qeth_send_simple_setassparms(card, cstype, IPA_CMD_ASS_START, 0);
+	rc = qeth_ipa_checksum_run_cmd(card, cstype, IPA_CMD_ASS_START, 0,
+				       &chksum_cb);
+	if (!rc) {
+		if ((required_features & chksum_cb.supported) !=
+		    required_features)
+			rc = -EIO;
+		else if (!(QETH_IPA_CHECKSUM_LP2LP & chksum_cb.supported) &&
+			 cstype == IPA_INBOUND_CHECKSUM)
+			dev_warn(&card->gdev->dev,
+				 "Hardware checksumming is performed only if %s and its peer use different OSA Express 3 ports\n",
+				 QETH_CARD_IFNAME(card));
+	}
 	if (rc) {
+		qeth_send_simple_setassparms(card, cstype, IPA_CMD_ASS_STOP, 0);
 		dev_warn(&card->gdev->dev,
 			 "Starting HW checksumming for %s failed, using SW checksumming\n",
 			 QETH_CARD_IFNAME(card));
 		return rc;
 	}
-	rxtx_arg = (cstype == IPA_OUTBOUND_CHECKSUM) ? card->info.tx_csum_mask
-						     : card->info.csum_mask;
-	rc = qeth_send_simple_setassparms(card, cstype, IPA_CMD_ASS_ENABLE,
-					  rxtx_arg);
+	rc = qeth_ipa_checksum_run_cmd(card, cstype, IPA_CMD_ASS_ENABLE,
+				       chksum_cb.supported, &chksum_cb);
+	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);
 		dev_warn(&card->gdev->dev,
 			 "Enabling HW checksumming for %s failed, using SW checksumming\n",
 			 QETH_CARD_IFNAME(card));
@@ -6090,19 +6164,10 @@ static int qeth_send_checksum_on(struct qeth_card *card, int cstype)
 
 static int qeth_set_ipa_csum(struct qeth_card *card, int on, int cstype)
 {
-	int rc;
-
-	if (on) {
-		rc = qeth_send_checksum_on(card, cstype);
-		if (rc)
-			return -EIO;
-	} else {
-		rc = qeth_send_simple_setassparms(card, cstype,
-						  IPA_CMD_ASS_STOP, 0);
-		if (rc)
-			return -EIO;
-	}
-	return 0;
+	int rc = (on) ? qeth_send_checksum_on(card, cstype)
+		      : qeth_send_simple_setassparms(card, cstype,
+						     IPA_CMD_ASS_STOP, 0);
+	return rc ? -EIO : 0;
 }
 
 static int qeth_set_ipa_tso(struct qeth_card *card, int on)
diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h
index 6cccc9a49ede..bc69d0a338ad 100644
--- a/drivers/s390/net/qeth_core_mpc.h
+++ b/drivers/s390/net/qeth_core_mpc.h
@@ -352,11 +352,28 @@ struct qeth_arp_query_info {
 	char *udata;
 };
 
+/* IPA set assist segmentation bit definitions for receive and
+ * transmit checksum offloading.
+ */
+enum qeth_ipa_checksum_bits {
+	QETH_IPA_CHECKSUM_IP_HDR	= 0x0002,
+	QETH_IPA_CHECKSUM_UDP		= 0x0008,
+	QETH_IPA_CHECKSUM_TCP		= 0x0010,
+	QETH_IPA_CHECKSUM_LP2LP		= 0x0020
+};
+
+/* IPA Assist checksum offload reply layout. */
+struct qeth_checksum_cmd {
+	__u32 supported;
+	__u32 enabled;
+} __packed;
+
 /* SETASSPARMS IPA Command: */
 struct qeth_ipacmd_setassparms {
 	struct qeth_ipacmd_setassparms_hdr hdr;
 	union {
 		__u32 flags_32bit;
+		struct qeth_checksum_cmd chksum;
 		struct qeth_arp_cache_entry add_arp_entry;
 		struct qeth_arp_query_data query_arp;
 		__u8 ip[16];
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 9c921c2833f1..bea483307618 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -27,9 +27,6 @@
 
 static int qeth_l2_set_offline(struct ccwgroup_device *);
 static int qeth_l2_stop(struct net_device *);
-static int qeth_l2_send_delmac(struct qeth_card *, __u8 *);
-static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *,
-			   enum qeth_ipa_cmds);
 static void qeth_l2_set_rx_mode(struct net_device *);
 static int qeth_l2_recover(void *);
 static void qeth_bridgeport_query_support(struct qeth_card *card);
@@ -165,13 +162,70 @@ static int qeth_setdel_makerc(struct qeth_card *card, int retcode)
 	return rc;
 }
 
+static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
+			   enum qeth_ipa_cmds ipacmd)
+{
+	struct qeth_ipa_cmd *cmd;
+	struct qeth_cmd_buffer *iob;
+
+	QETH_CARD_TEXT(card, 2, "L2sdmac");
+	iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
+	if (!iob)
+		return -ENOMEM;
+	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
+	cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
+	memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
+	return qeth_setdel_makerc(card, qeth_send_ipa_cmd(card, iob,
+					NULL, NULL));
+}
+
+static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
+{
+	int rc;
+
+	QETH_CARD_TEXT(card, 2, "L2Setmac");
+	rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC);
+	if (rc == 0) {
+		card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
+		memcpy(card->dev->dev_addr, mac, OSA_ADDR_LEN);
+		dev_info(&card->gdev->dev,
+			"MAC address %pM successfully registered on device %s\n",
+			card->dev->dev_addr, card->dev->name);
+	} else {
+		card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
+		switch (rc) {
+		case -EEXIST:
+			dev_warn(&card->gdev->dev,
+				"MAC address %pM already exists\n", mac);
+			break;
+		case -EPERM:
+			dev_warn(&card->gdev->dev,
+				"MAC address %pM is not authorized\n", mac);
+			break;
+		}
+	}
+	return rc;
+}
+
+static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac)
+{
+	int rc;
+
+	QETH_CARD_TEXT(card, 2, "L2Delmac");
+	if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
+		return 0;
+	rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC);
+	if (rc == 0)
+		card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
+	return rc;
+}
+
 static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
 {
 	int rc;
 
 	QETH_CARD_TEXT(card, 2, "L2Sgmac");
-	rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
-					IPA_CMD_SETGMAC));
+	rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC);
 	if (rc == -EEXIST)
 		QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s\n",
 			mac, QETH_CARD_IFNAME(card));
@@ -186,8 +240,7 @@ static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
 	int rc;
 
 	QETH_CARD_TEXT(card, 2, "L2Dgmac");
-	rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
-					IPA_CMD_DELGMAC));
+	rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC);
 	if (rc)
 		QETH_DBF_MESSAGE(2,
 			"Could not delete group MAC %pM on %s: %d\n",
@@ -195,28 +248,27 @@ static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
 	return rc;
 }
 
-static inline u32 qeth_l2_mac_hash(const u8 *addr)
+static int qeth_l2_write_mac(struct qeth_card *card, struct qeth_mac *mac)
 {
-	return get_unaligned((u32 *)(&addr[2]));
+	if (mac->is_uc) {
+		return qeth_l2_send_setdelmac(card, mac->mac_addr,
+						IPA_CMD_SETVMAC);
+	} else {
+		return qeth_l2_send_setgroupmac(card, mac->mac_addr);
+	}
 }
 
-static int qeth_l2_write_mac(struct qeth_card *card, struct qeth_mac *mac)
+static int qeth_l2_remove_mac(struct qeth_card *card, struct qeth_mac *mac)
 {
-
-	int rc;
-
 	if (mac->is_uc) {
-		rc = qeth_setdel_makerc(card,
-				qeth_l2_send_setdelmac(card, mac->mac_addr,
-						IPA_CMD_SETVMAC));
+		return qeth_l2_send_setdelmac(card, mac->mac_addr,
+						IPA_CMD_DELVMAC);
 	} else {
-		rc = qeth_setdel_makerc(card,
-				qeth_l2_send_setgroupmac(card, mac->mac_addr));
+		return qeth_l2_send_delgroupmac(card, mac->mac_addr);
 	}
-	return rc;
 }
 
-static void qeth_l2_del_all_macs(struct qeth_card *card, int del)
+static void qeth_l2_del_all_macs(struct qeth_card *card)
 {
 	struct qeth_mac *mac;
 	struct hlist_node *tmp;
@@ -224,19 +276,17 @@ static void qeth_l2_del_all_macs(struct qeth_card *card, int del)
 
 	spin_lock_bh(&card->mclock);
 	hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
-		if (del) {
-			if (mac->is_uc)
-				qeth_l2_send_setdelmac(card, mac->mac_addr,
-						IPA_CMD_DELVMAC);
-			else
-				qeth_l2_send_delgroupmac(card, mac->mac_addr);
-		}
 		hash_del(&mac->hnode);
 		kfree(mac);
 	}
 	spin_unlock_bh(&card->mclock);
 }
 
+static inline u32 qeth_l2_mac_hash(const u8 *addr)
+{
+	return get_unaligned((u32 *)(&addr[2]));
+}
+
 static inline int qeth_l2_get_cast_type(struct qeth_card *card,
 			struct sk_buff *skb)
 {
@@ -425,7 +475,7 @@ static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
 		card->state = CARD_STATE_SOFTSETUP;
 	}
 	if (card->state == CARD_STATE_SOFTSETUP) {
-		qeth_l2_del_all_macs(card, 0);
+		qeth_l2_del_all_macs(card);
 		qeth_clear_ipacmd_list(card);
 		card->state = CARD_STATE_HARDSETUP;
 	}
@@ -577,65 +627,6 @@ out:
 	return work_done;
 }
 
-static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
-			   enum qeth_ipa_cmds ipacmd)
-{
-	struct qeth_ipa_cmd *cmd;
-	struct qeth_cmd_buffer *iob;
-
-	QETH_CARD_TEXT(card, 2, "L2sdmac");
-	iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
-	if (!iob)
-		return -ENOMEM;
-	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
-	cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
-	memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
-	return qeth_send_ipa_cmd(card, iob, NULL, NULL);
-}
-
-static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
-{
-	int rc;
-
-	QETH_CARD_TEXT(card, 2, "L2Setmac");
-	rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
-					IPA_CMD_SETVMAC));
-	if (rc == 0) {
-		card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
-		memcpy(card->dev->dev_addr, mac, OSA_ADDR_LEN);
-		dev_info(&card->gdev->dev,
-			"MAC address %pM successfully registered on device %s\n",
-			card->dev->dev_addr, card->dev->name);
-	} else {
-		card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
-		switch (rc) {
-		case -EEXIST:
-			dev_warn(&card->gdev->dev,
-				"MAC address %pM already exists\n", mac);
-			break;
-		case -EPERM:
-			dev_warn(&card->gdev->dev,
-				"MAC address %pM is not authorized\n", mac);
-			break;
-		}
-	}
-	return rc;
-}
-
-static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac)
-{
-	int rc;
-
-	QETH_CARD_TEXT(card, 2, "L2Delmac");
-	if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
-		return 0;
-	rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
-					IPA_CMD_DELVMAC));
-	if (rc == 0)
-		card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
-	return rc;
-}
-
 static int qeth_l2_request_initial_mac(struct qeth_card *card)
 {
 	int rc = 0;
@@ -794,14 +785,7 @@ static void qeth_l2_set_rx_mode(struct net_device *dev)
 
 	hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
 		if (mac->disp_flag == QETH_DISP_ADDR_DELETE) {
-			if (!mac->is_uc)
-				rc = qeth_l2_send_delgroupmac(card,
-						mac->mac_addr);
-			else {
-				rc = qeth_l2_send_setdelmac(card, mac->mac_addr,
-						IPA_CMD_DELVMAC);
-			}
-
+			qeth_l2_remove_mac(card, mac);
 			hash_del(&mac->hnode);
 			kfree(mac);
 
@@ -1193,21 +1177,6 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 	/* softsetup */
 	QETH_DBF_TEXT(SETUP, 2, "softsetp");
 
-	rc = qeth_send_startlan(card);
-	if (rc) {
-		QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
-		if (rc == 0xe080) {
-			dev_warn(&card->gdev->dev,
-				"The LAN is offline\n");
-			card->lan_online = 0;
-			goto contin;
-		}
-		rc = -ENODEV;
-		goto out_remove;
-	} else
-		card->lan_online = 1;
-
-contin:
 	if ((card->info.type == QETH_CARD_TYPE_OSD) ||
 	    (card->info.type == QETH_CARD_TYPE_OSX)) {
 		rc = qeth_l2_start_ipassists(card);
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index ac37d050e765..06d0addcc058 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -3227,21 +3227,6 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 	/* softsetup */
 	QETH_DBF_TEXT(SETUP, 2, "softsetp");
 
-	rc = qeth_send_startlan(card);
-	if (rc) {
-		QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
-		if (rc == 0xe080) {
-			dev_warn(&card->gdev->dev,
-				"The LAN is offline\n");
-			card->lan_online = 0;
-			goto contin;
-		}
-		rc = -ENODEV;
-		goto out_remove;
-	} else
-		card->lan_online = 1;
-
-contin:
 	rc = qeth_l3_setadapter_parms(card);
 	if (rc)
 		QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c
index 0e00a5ce0f00..05e9471e3d3f 100644
--- a/drivers/s390/net/qeth_l3_sys.c
+++ b/drivers/s390/net/qeth_l3_sys.c
@@ -250,9 +250,6 @@ static ssize_t qeth_l3_dev_hsuid_show(struct device *dev,
 	if (card->info.type != QETH_CARD_TYPE_IQD)
 		return -EPERM;
 
-	if (card->state == CARD_STATE_DOWN)
-		return -EPERM;
-
 	memcpy(tmp_hsuid, card->options.hsuid, sizeof(tmp_hsuid));
 	EBCASC(tmp_hsuid, 8);
 	return sprintf(buf, "%s\n", tmp_hsuid);
@@ -692,15 +689,15 @@ static ssize_t qeth_l3_dev_vipa_add_show(char *buf, struct qeth_card *card,
 			enum qeth_prot_versions proto)
 {
 	struct qeth_ipaddr *ipaddr;
-	struct hlist_node  *tmp;
 	char addr_str[40];
+	int str_len = 0;
 	int entry_len; /* length of 1 entry string, differs between v4 and v6 */
-	int i = 0;
+	int i;
 
 	entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
 	entry_len += 2; /* \n + terminator */
 	spin_lock_bh(&card->ip_lock);
-	hash_for_each_safe(card->ip_htable, i, tmp, ipaddr, hnode) {
+	hash_for_each(card->ip_htable, i, ipaddr, hnode) {
 		if (ipaddr->proto != proto)
 			continue;
 		if (ipaddr->type != QETH_IP_TYPE_VIPA)
@@ -708,16 +705,17 @@ static ssize_t qeth_l3_dev_vipa_add_show(char *buf, struct qeth_card *card,
 		/* String must not be longer than PAGE_SIZE. So we check if
 		 * string length gets near PAGE_SIZE. Then we can savely display
 		 * the next IPv6 address (worst case, compared to IPv4) */
-		if ((PAGE_SIZE - i) <= entry_len)
+		if ((PAGE_SIZE - str_len) <= entry_len)
 			break;
 		qeth_l3_ipaddr_to_string(proto, (const u8 *)&ipaddr->u,
 			addr_str);
-		i += snprintf(buf + i, PAGE_SIZE - i, "%s\n", addr_str);
+		str_len += snprintf(buf + str_len, PAGE_SIZE - str_len, "%s\n",
+				    addr_str);
 	}
 	spin_unlock_bh(&card->ip_lock);
-	i += snprintf(buf + i, PAGE_SIZE - i, "\n");
+	str_len += snprintf(buf + str_len, PAGE_SIZE - str_len, "\n");
 
-	return i;
+	return str_len;
 }
 
 static ssize_t qeth_l3_dev_vipa_add4_show(struct device *dev,
@@ -854,15 +852,15 @@ static ssize_t qeth_l3_dev_rxip_add_show(char *buf, struct qeth_card *card,
 		       enum qeth_prot_versions proto)
 {
 	struct qeth_ipaddr *ipaddr;
-	struct hlist_node *tmp;
 	char addr_str[40];
+	int str_len = 0;
 	int entry_len; /* length of 1 entry string, differs between v4 and v6 */
-	int i = 0;
+	int i;
 
 	entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
 	entry_len += 2; /* \n + terminator */
 	spin_lock_bh(&card->ip_lock);
-	hash_for_each_safe(card->ip_htable, i, tmp, ipaddr, hnode) {
+	hash_for_each(card->ip_htable, i, ipaddr, hnode) {
 		if (ipaddr->proto != proto)
 			continue;
 		if (ipaddr->type != QETH_IP_TYPE_RXIP)
@@ -870,16 +868,17 @@ static ssize_t qeth_l3_dev_rxip_add_show(char *buf, struct qeth_card *card,
 		/* String must not be longer than PAGE_SIZE. So we check if
 		 * string length gets near PAGE_SIZE. Then we can savely display
 		 * the next IPv6 address (worst case, compared to IPv4) */
-		if ((PAGE_SIZE - i) <= entry_len)
+		if ((PAGE_SIZE - str_len) <= entry_len)
 			break;
 		qeth_l3_ipaddr_to_string(proto, (const u8 *)&ipaddr->u,
 			addr_str);
-		i += snprintf(buf + i, PAGE_SIZE - i, "%s\n", addr_str);
+		str_len += snprintf(buf + str_len, PAGE_SIZE - str_len, "%s\n",
+				    addr_str);
 	}
 	spin_unlock_bh(&card->ip_lock);
-	i += snprintf(buf + i, PAGE_SIZE - i, "\n");
+	str_len += snprintf(buf + str_len, PAGE_SIZE - str_len, "\n");
 
-	return i;
+	return str_len;
 }
 
 static ssize_t qeth_l3_dev_rxip_add4_show(struct device *dev,