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

Pull networking updates from David Miller:

 1) New ipset extensions for matching on destination MAC addresses, from
    Stefano Brivio.

 2) Add ipv4 ttl and tos, plus ipv6 flow label and hop limit offloads to
    nfp driver. From Stefano Brivio.

 3) Implement GRO for plain UDP sockets, from Paolo Abeni.

 4) Lots of work from Michał Mirosław to eliminate the VLAN_TAG_PRESENT
    bit so that we could support the entire vlan_tci value.

 5) Rework the IPSEC policy lookups to better optimize more usecases,
    from Florian Westphal.

 6) Infrastructure changes eliminating direct manipulation of SKB lists
    wherever possible, and to always use the appropriate SKB list
    helpers. This work is still ongoing...

 7) Lots of PHY driver and state machine improvements and
    simplifications, from Heiner Kallweit.

 8) Various TSO deferral refinements, from Eric Dumazet.

 9) Add ntuple filter support to aquantia driver, from Dmitry Bogdanov.

10) Batch dropping of XDP packets in tuntap, from Jason Wang.

11) Lots of cleanups and improvements to the r8169 driver from Heiner
    Kallweit, including support for ->xmit_more. This driver has been
    getting some much needed love since he started working on it.

12) Lots of new forwarding selftests from Petr Machata.

13) Enable VXLAN learning in mlxsw driver, from Ido Schimmel.

14) Packed ring support for virtio, from Tiwei Bie.

15) Add new Aquantia AQtion USB driver, from Dmitry Bezrukov.

16) Add XDP support to dpaa2-eth driver, from Ioana Ciocoi Radulescu.

17) Implement coalescing on TCP backlog queue, from Eric Dumazet.

18) Implement carrier change in tun driver, from Nicolas Dichtel.

19) Support msg_zerocopy in UDP, from Willem de Bruijn.

20) Significantly improve garbage collection of neighbor objects when
    the table has many PERMANENT entries, from David Ahern.

21) Remove egdev usage from nfp and mlx5, and remove the facility
    completely from the tree as it no longer has any users. From Oz
    Shlomo and others.

22) Add a NETDEV_PRE_CHANGEADDR so that drivers can veto the change and
    therefore abort the operation before the commit phase (which is the
    NETDEV_CHANGEADDR event). From Petr Machata.

23) Add indirect call wrappers to avoid retpoline overhead, and use them
    in the GRO code paths. From Paolo Abeni.

24) Add support for netlink FDB get operations, from Roopa Prabhu.

25) Support bloom filter in mlxsw driver, from Nir Dotan.

26) Add SKB extension infrastructure. This consolidates the handling of
    the auxiliary SKB data used by IPSEC and bridge netfilter, and is
    designed to support the needs to MPTCP which could be integrated in
    the future.

27) Lots of XDP TX optimizations in mlx5 from Tariq Toukan.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1845 commits)
  net: dccp: fix kernel crash on module load
  drivers/net: appletalk/cops: remove redundant if statement and mask
  bnx2x: Fix NULL pointer dereference in bnx2x_del_all_vlans() on some hw
  net/net_namespace: Check the return value of register_pernet_subsys()
  net/netlink_compat: Fix a missing check of nla_parse_nested
  ieee802154: lowpan_header_create check must check daddr
  net/mlx4_core: drop useless LIST_HEAD
  mlxsw: spectrum: drop useless LIST_HEAD
  net/mlx5e: drop useless LIST_HEAD
  iptunnel: Set tun_flags in the iptunnel_metadata_reply from src
  net/mlx5e: fix semicolon.cocci warnings
  staging: octeon: fix build failure with XFRM enabled
  net: Revert recent Spectre-v1 patches.
  can: af_can: Fix Spectre v1 vulnerability
  packet: validate address length if non-zero
  nfc: af_nfc: Fix Spectre v1 vulnerability
  phonet: af_phonet: Fix Spectre v1 vulnerability
  net: core: Fix Spectre v1 vulnerability
  net: minor cleanup in skb_ext_add()
  net: drop the unused helper skb_ext_get()
  ...

7 files changed, 129 insertions, 261 deletions

diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index 04e294d1d16d..0ee026947f20 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -314,7 +314,7 @@ struct qeth_hdr_layer3 {
 	__u16 frame_offset;
 	union {
 		/* TX: */
-		u8 ipv6_addr[16];
+		struct in6_addr ipv6_addr;
 		struct ipv4 {
 			u8 res[12];
 			u32 addr;
@@ -665,7 +665,6 @@ struct qeth_card_blkt {
 
 #define QETH_BROADCAST_WITH_ECHO    0x01
 #define QETH_BROADCAST_WITHOUT_ECHO 0x02
-#define QETH_LAYER2_MAC_READ	    0x01
 #define QETH_LAYER2_MAC_REGISTERED  0x02
 struct qeth_card_info {
 	unsigned short unit_addr2;
@@ -775,7 +774,6 @@ struct qeth_switch_info {
 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
 
 struct qeth_card {
-	struct list_head list;
 	enum qeth_card_states state;
 	spinlock_t lock;
 	struct ccwgroup_device *gdev;
@@ -827,11 +825,6 @@ struct qeth_card {
 	struct work_struct close_dev_work;
 };
 
-struct qeth_card_list_struct {
-	struct list_head list;
-	rwlock_t rwlock;
-};
-
 struct qeth_trap_id {
 	__u16 lparnr;
 	char vmname[8];
@@ -978,11 +971,11 @@ int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
 void qeth_core_free_discipline(struct qeth_card *);
 
 /* exports for qeth discipline device drivers */
-extern struct qeth_card_list_struct qeth_core_card_list;
 extern struct kmem_cache *qeth_core_header_cache;
 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
 
 struct net_device *qeth_clone_netdev(struct net_device *orig);
+struct qeth_card *qeth_get_card_by_busid(char *bus_id);
 void qeth_set_recovery_task(struct qeth_card *);
 void qeth_clear_recovery_task(struct qeth_card *);
 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
@@ -1025,9 +1018,6 @@ int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
 	int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
 	void *reply_param);
 unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset);
-int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, struct sk_buff *skb,
-			     struct qeth_hdr *hdr, unsigned int offset,
-			     unsigned int hd_len);
 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
 			struct sk_buff *skb, struct qeth_hdr *hdr,
 			unsigned int offset, unsigned int hd_len,
@@ -1058,11 +1048,6 @@ netdev_features_t qeth_features_check(struct sk_buff *skb,
 				      struct net_device *dev,
 				      netdev_features_t features);
 int qeth_vm_request_mac(struct qeth_card *card);
-int qeth_add_hw_header(struct qeth_card *card, struct sk_buff *skb,
-		       struct qeth_hdr **hdr, unsigned int hdr_len,
-		       unsigned int proto_len, unsigned int *elements);
-void qeth_fill_tso_ext(struct qeth_hdr_tso *hdr, unsigned int payload_len,
-		       struct sk_buff *skb, unsigned int proto_len);
 int qeth_xmit(struct qeth_card *card, struct sk_buff *skb,
 	      struct qeth_qdio_out_q *queue, int ipv, int cast_type,
 	      void (*fill_header)(struct qeth_card *card, struct qeth_hdr *hdr,
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 254065271867..e63e03143ca7 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -54,8 +54,6 @@ struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
 };
 EXPORT_SYMBOL_GPL(qeth_dbf);
 
-struct qeth_card_list_struct qeth_core_card_list;
-EXPORT_SYMBOL_GPL(qeth_core_card_list);
 struct kmem_cache *qeth_core_header_cache;
 EXPORT_SYMBOL_GPL(qeth_core_header_cache);
 static struct kmem_cache *qeth_qdio_outbuf_cache;
@@ -2837,6 +2835,17 @@ static void qeth_fill_ipacmd_header(struct qeth_card *card,
 	cmd->hdr.prot_version = prot;
 }
 
+void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob)
+{
+	u8 prot_type = qeth_mpc_select_prot_type(card);
+
+	memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
+	memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
+	memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
+	       &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
+}
+EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
+
 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
 		enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
 {
@@ -2844,6 +2853,7 @@ struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
 
 	iob = qeth_get_buffer(&card->write);
 	if (iob) {
+		qeth_prepare_ipa_cmd(card, iob);
 		qeth_fill_ipacmd_header(card, __ipa_cmd(iob), ipacmd, prot);
 	} else {
 		dev_warn(&card->gdev->dev,
@@ -2856,17 +2866,6 @@ struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
 }
 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
 
-void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob)
-{
-	u8 prot_type = qeth_mpc_select_prot_type(card);
-
-	memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
-	memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
-	memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
-	       &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
-}
-EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
-
 /**
  * qeth_send_ipa_cmd() - send an IPA command
  *
@@ -2881,7 +2880,6 @@ int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
 	int rc;
 
 	QETH_CARD_TEXT(card, 4, "sendipa");
-	qeth_prepare_ipa_cmd(card, iob);
 	rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
 						iob, reply_cb, reply_param);
 	if (rc == -ETIME) {
@@ -3777,9 +3775,9 @@ EXPORT_SYMBOL_GPL(qeth_count_elements);
  * The number of needed buffer elements is returned in @elements.
  * Error to create the hdr is indicated by returning with < 0.
  */
-int qeth_add_hw_header(struct qeth_card *card, struct sk_buff *skb,
-		       struct qeth_hdr **hdr, unsigned int hdr_len,
-		       unsigned int proto_len, unsigned int *elements)
+static int qeth_add_hw_header(struct qeth_card *card, struct sk_buff *skb,
+			      struct qeth_hdr **hdr, unsigned int hdr_len,
+			      unsigned int proto_len, unsigned int *elements)
 {
 	const unsigned int max_elements = QETH_MAX_BUFFER_ELEMENTS(card);
 	const unsigned int contiguous = proto_len ? proto_len : 1;
@@ -3849,7 +3847,6 @@ check_layout:
 	skb_copy_from_linear_data(skb, ((char *)*hdr) + hdr_len, proto_len);
 	return 0;
 }
-EXPORT_SYMBOL_GPL(qeth_add_hw_header);
 
 static void __qeth_fill_buffer(struct sk_buff *skb,
 			       struct qeth_qdio_out_buffer *buf,
@@ -3972,9 +3969,9 @@ static int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
 	return flush_cnt;
 }
 
-int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, struct sk_buff *skb,
-			     struct qeth_hdr *hdr, unsigned int offset,
-			     unsigned int hd_len)
+static int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue,
+				    struct sk_buff *skb, struct qeth_hdr *hdr,
+				    unsigned int offset, unsigned int hd_len)
 {
 	int index = queue->next_buf_to_fill;
 	struct qeth_qdio_out_buffer *buffer = queue->bufs[index];
@@ -3990,7 +3987,6 @@ int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, struct sk_buff *skb,
 	qeth_flush_buffers(queue, index, 1);
 	return 0;
 }
-EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
 
 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
 			struct sk_buff *skb, struct qeth_hdr *hdr,
@@ -4082,8 +4078,9 @@ out:
 }
 EXPORT_SYMBOL_GPL(qeth_do_send_packet);
 
-void qeth_fill_tso_ext(struct qeth_hdr_tso *hdr, unsigned int payload_len,
-		       struct sk_buff *skb, unsigned int proto_len)
+static void qeth_fill_tso_ext(struct qeth_hdr_tso *hdr,
+			      unsigned int payload_len, struct sk_buff *skb,
+			      unsigned int proto_len)
 {
 	struct qeth_hdr_ext_tso *ext = &hdr->ext;
 
@@ -4096,7 +4093,6 @@ void qeth_fill_tso_ext(struct qeth_hdr_tso *hdr, unsigned int payload_len,
 	ext->mss = skb_shinfo(skb)->gso_size;
 	ext->dg_hdr_len = proto_len;
 }
-EXPORT_SYMBOL_GPL(qeth_fill_tso_ext);
 
 int qeth_xmit(struct qeth_card *card, struct sk_buff *skb,
 	      struct qeth_qdio_out_q *queue, int ipv, int cast_type,
@@ -4119,7 +4115,7 @@ int qeth_xmit(struct qeth_card *card, struct sk_buff *skb,
 		proto_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
 	} else {
 		hw_hdr_len = sizeof(struct qeth_hdr);
-		proto_len = IS_IQD(card) ? ETH_HLEN : 0;
+		proto_len = (IS_IQD(card) && IS_LAYER2(card)) ? ETH_HLEN : 0;
 	}
 
 	rc = skb_cow_head(skb, hw_hdr_len);
@@ -4235,16 +4231,18 @@ static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
 		struct qeth_reply *reply, unsigned long data)
 {
 	struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
+	struct qeth_ipacmd_setadpparms *adp_cmd;
 
 	QETH_CARD_TEXT(card, 4, "chgmaccb");
 	if (qeth_setadpparms_inspect_rc(cmd))
 		return 0;
 
-	if (IS_LAYER3(card) || !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
-		ether_addr_copy(card->dev->dev_addr,
-				cmd->data.setadapterparms.data.change_addr.addr);
-		card->info.mac_bits |= QETH_LAYER2_MAC_READ;
-	}
+	adp_cmd = &cmd->data.setadapterparms;
+	if (IS_LAYER2(card) && IS_OSD(card) && !IS_VM_NIC(card) &&
+	    !(adp_cmd->hdr.flags & QETH_SETADP_FLAGS_VIRTUAL_MAC))
+		return 0;
+
+	ether_addr_copy(card->dev->dev_addr, adp_cmd->data.change_addr.addr);
 	return 0;
 }
 
@@ -4499,9 +4497,6 @@ static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
 
 	QETH_CARD_TEXT(card, 4, "sendsnmp");
 
-	memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
-	memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
-	       &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
 	/* adjust PDU length fields in IPA_PDU_HEADER */
 	s1 = (u32) IPA_PDU_HEADER_SIZE + len;
 	s2 = (u32) len;
@@ -5477,34 +5472,11 @@ struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
 }
 EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd);
 
-static int qeth_send_setassparms(struct qeth_card *card,
-				 struct qeth_cmd_buffer *iob, u16 len,
-				 long data, int (*reply_cb)(struct qeth_card *,
-							    struct qeth_reply *,
-							    unsigned long),
-				 void *reply_param)
-{
-	int rc;
-	struct qeth_ipa_cmd *cmd;
-
-	QETH_CARD_TEXT(card, 4, "sendassp");
-
-	cmd = __ipa_cmd(iob);
-	if (len <= sizeof(__u32))
-		cmd->data.setassparms.data.flags_32bit = (__u32) data;
-	else   /* (len > sizeof(__u32)) */
-		memcpy(&cmd->data.setassparms.data, (void *) data, len);
-
-	rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
-	return rc;
-}
-
 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)
 {
-	int rc;
 	int length = 0;
 	struct qeth_cmd_buffer *iob;
 
@@ -5514,9 +5486,9 @@ int qeth_send_simple_setassparms_prot(struct qeth_card *card,
 	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;
+
+	__ipa_cmd(iob)->data.setassparms.data.flags_32bit = (__u32) data;
+	return qeth_send_ipa_cmd(card, iob, qeth_setassparms_cb, NULL);
 }
 EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms_prot);
 
@@ -5803,9 +5775,6 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev)
 		break;
 	}
 
-	write_lock_irq(&qeth_core_card_list.rwlock);
-	list_add_tail(&card->list, &qeth_core_card_list.list);
-	write_unlock_irq(&qeth_core_card_list.rwlock);
 	return 0;
 
 err_disc:
@@ -5830,9 +5799,6 @@ static void qeth_core_remove_device(struct ccwgroup_device *gdev)
 		qeth_core_free_discipline(card);
 	}
 
-	write_lock_irq(&qeth_core_card_list.rwlock);
-	list_del(&card->list);
-	write_unlock_irq(&qeth_core_card_list.rwlock);
 	free_netdev(card->dev);
 	qeth_core_free_card(card);
 	put_device(&gdev->dev);
@@ -5947,6 +5913,21 @@ static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
 	.restore = qeth_core_restore,
 };
 
+struct qeth_card *qeth_get_card_by_busid(char *bus_id)
+{
+	struct ccwgroup_device *gdev;
+	struct qeth_card *card;
+
+	gdev = get_ccwgroupdev_by_busid(&qeth_core_ccwgroup_driver, bus_id);
+	if (!gdev)
+		return NULL;
+
+	card = dev_get_drvdata(&gdev->dev);
+	put_device(&gdev->dev);
+	return card;
+}
+EXPORT_SYMBOL_GPL(qeth_get_card_by_busid);
+
 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 {
 	struct qeth_card *card = dev->ml_priv;
@@ -6378,16 +6359,16 @@ static int qeth_ipa_checksum_run_cmd(struct qeth_card *card,
 				     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), prot);
-	if (iob)
-		rc = qeth_send_setassparms(card, iob, sizeof(__u32), data,
-					   qeth_ipa_checksum_run_cmd_cb,
-					   chksum_cb);
-	return rc;
+	if (!iob)
+		return -ENOMEM;
+
+	__ipa_cmd(iob)->data.setassparms.data.flags_32bit = (__u32) data;
+	return qeth_send_ipa_cmd(card, iob, qeth_ipa_checksum_run_cmd_cb,
+				 chksum_cb);
 }
 
 static int qeth_send_checksum_on(struct qeth_card *card, int cstype,
@@ -6485,8 +6466,7 @@ static int qeth_set_tso_on(struct qeth_card *card,
 	if (!iob)
 		return -ENOMEM;
 
-	rc = qeth_send_setassparms(card, iob, 0, 0 /* unused */,
-				   qeth_start_tso_cb, &tso_data);
+	rc = qeth_send_ipa_cmd(card, iob, qeth_start_tso_cb, &tso_data);
 	if (rc)
 		return rc;
 
@@ -6503,10 +6483,9 @@ static int qeth_set_tso_on(struct qeth_card *card,
 	}
 
 	/* enable TSO capability */
-	caps.supported = 0;
-	caps.enabled = QETH_IPA_LARGE_SEND_TCP;
-	rc = qeth_send_setassparms(card, iob, sizeof(caps), (long) &caps,
-				   qeth_setassparms_get_caps_cb, &caps);
+	__ipa_cmd(iob)->data.setassparms.data.caps.enabled =
+		QETH_IPA_LARGE_SEND_TCP;
+	rc = qeth_send_ipa_cmd(card, iob, qeth_setassparms_get_caps_cb, &caps);
 	if (rc) {
 		qeth_set_tso_off(card, prot);
 		return rc;
@@ -6685,8 +6664,6 @@ static int __init qeth_core_init(void)
 	int rc;
 
 	pr_info("loading core functions\n");
-	INIT_LIST_HEAD(&qeth_core_card_list.list);
-	rwlock_init(&qeth_core_card_list.rwlock);
 
 	qeth_wq = create_singlethread_workqueue("qeth_wq");
 	if (!qeth_wq) {
diff --git a/drivers/s390/net/qeth_core_mpc.c b/drivers/s390/net/qeth_core_mpc.c
index e891c0b52f4c..16fc51ad0514 100644
--- a/drivers/s390/net/qeth_core_mpc.c
+++ b/drivers/s390/net/qeth_core_mpc.c
@@ -144,7 +144,6 @@ unsigned char IPA_PDU_HEADER[] = {
 		sizeof(struct qeth_ipa_cmd) % 256,
 	0x00, 0x00, 0x00, 0x40,
 };
-EXPORT_SYMBOL_GPL(IPA_PDU_HEADER);
 
 struct ipa_rc_msg {
 	enum qeth_ipa_return_codes rc;
diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h
index 3e54be201b27..1ab321926f64 100644
--- a/drivers/s390/net/qeth_core_mpc.h
+++ b/drivers/s390/net/qeth_core_mpc.h
@@ -80,7 +80,9 @@ enum qeth_card_types {
 };
 
 #define IS_IQD(card)	((card)->info.type == QETH_CARD_TYPE_IQD)
+#define IS_OSD(card)	((card)->info.type == QETH_CARD_TYPE_OSD)
 #define IS_OSN(card)	((card)->info.type == QETH_CARD_TYPE_OSN)
+#define IS_VM_NIC(card)	((card)->info.guestlan)
 
 #define QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE 0x18
 /* only the first two bytes are looked at in qeth_get_cardname_short */
@@ -529,17 +531,20 @@ struct qeth_query_switch_attributes {
 	__u8  reserved3[8];
 };
 
+#define QETH_SETADP_FLAGS_VIRTUAL_MAC	0x80	/* for CHANGE_ADDR_READ_MAC */
+
 struct qeth_ipacmd_setadpparms_hdr {
-	__u32 supp_hw_cmds;
-	__u32 reserved1;
-	__u16 cmdlength;
-	__u16 reserved2;
-	__u32 command_code;
-	__u16 return_code;
-	__u8  used_total;
-	__u8  seq_no;
-	__u32 reserved3;
-} __attribute__ ((packed));
+	u32 supp_hw_cmds;
+	u32 reserved1;
+	u16 cmdlength;
+	u16 reserved2;
+	u32 command_code;
+	u16 return_code;
+	u8 used_total;
+	u8 seq_no;
+	u8 flags;
+	u8 reserved3[3];
+};
 
 struct qeth_ipacmd_setadpparms {
 	struct qeth_ipacmd_setadpparms_hdr hdr;
@@ -828,10 +833,9 @@ enum qeth_ipa_arp_return_codes {
 extern const char *qeth_get_ipa_msg(enum qeth_ipa_return_codes rc);
 extern const char *qeth_get_ipa_cmd_name(enum qeth_ipa_cmds cmd);
 
-#define QETH_SETASS_BASE_LEN (sizeof(struct qeth_ipacmd_hdr) + \
-			       sizeof(struct qeth_ipacmd_setassparms_hdr))
-#define QETH_IPA_ARP_DATA_POS(buffer) (buffer + IPA_PDU_HEADER_SIZE + \
-				       QETH_SETASS_BASE_LEN)
+#define QETH_SETASS_BASE_LEN (IPA_PDU_HEADER_SIZE + \
+			      sizeof(struct qeth_ipacmd_hdr) + \
+			      sizeof(struct qeth_ipacmd_setassparms_hdr))
 #define QETH_SETADP_BASE_LEN (sizeof(struct qeth_ipacmd_hdr) + \
 			      sizeof(struct qeth_ipacmd_setadpparms_hdr))
 #define QETH_SNMP_SETADP_CMDLENGTH 16
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 2914a1a69f83..f108d4b44605 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -36,28 +36,6 @@ static void qeth_l2_vnicc_init(struct qeth_card *card);
 static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc,
 					  u32 *timeout);
 
-static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no)
-{
-	struct qeth_card *card;
-	struct net_device *ndev;
-	__u16 temp_dev_no;
-	unsigned long flags;
-	struct ccw_dev_id read_devid;
-
-	ndev = NULL;
-	memcpy(&temp_dev_no, read_dev_no, 2);
-	read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
-	list_for_each_entry(card, &qeth_core_card_list.list, list) {
-		ccw_device_get_id(CARD_RDEV(card), &read_devid);
-		if (read_devid.devno == temp_dev_no) {
-			ndev = card->dev;
-			break;
-		}
-	}
-	read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
-	return ndev;
-}
-
 static int qeth_setdelmac_makerc(struct qeth_card *card, int retcode)
 {
 	int rc;
@@ -461,12 +439,9 @@ static int qeth_l2_request_initial_mac(struct qeth_card *card)
 		/* fall back to alternative mechanism: */
 	}
 
-	if (card->info.type == QETH_CARD_TYPE_IQD ||
-	    card->info.type == QETH_CARD_TYPE_OSM ||
-	    card->info.type == QETH_CARD_TYPE_OSX ||
-	    card->info.guestlan) {
+	if (!IS_OSN(card)) {
 		rc = qeth_setadpparms_change_macaddr(card);
-		if (!rc)
+		if (!rc && is_valid_ether_addr(card->dev->dev_addr))
 			goto out;
 		QETH_DBF_MESSAGE(2, "READ_MAC Assist failed on device %x: %#x\n",
 				 CARD_DEVID(card), rc);
@@ -917,7 +892,8 @@ static int qeth_l2_setup_netdev(struct qeth_card *card, bool carrier_ok)
 				       PAGE_SIZE * (QDIO_MAX_ELEMENTS_PER_BUFFER - 1));
 	}
 
-	qeth_l2_request_initial_mac(card);
+	if (!is_valid_ether_addr(card->dev->dev_addr))
+		qeth_l2_request_initial_mac(card);
 	netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT);
 	rc = register_netdev(card->dev);
 	if (!rc && carrier_ok)
@@ -1031,7 +1007,7 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 			qeth_l2_set_rx_mode(card->dev);
 		} else {
 			rtnl_lock();
-			dev_open(card->dev);
+			dev_open(card->dev, NULL);
 			rtnl_unlock();
 		}
 	}
@@ -1288,13 +1264,16 @@ int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
 		  int (*data_cb)(struct sk_buff *))
 {
 	struct qeth_card *card;
+	char bus_id[16];
+	u16 devno;
 
-	*dev = qeth_l2_netdev_by_devno(read_dev_no);
-	if (*dev == NULL)
-		return -ENODEV;
-	card = (*dev)->ml_priv;
-	if (!card)
+	memcpy(&devno, read_dev_no, 2);
+	sprintf(bus_id, "0.0.%04x", devno);
+	card = qeth_get_card_by_busid(bus_id);
+	if (!card || !IS_OSN(card))
 		return -ENODEV;
+	*dev = card->dev;
+
 	QETH_CARD_TEXT(card, 2, "osnreg");
 	if ((assist_cb == NULL) || (data_cb == NULL))
 		return -EINVAL;
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index f08b745c2007..42a7cdc59b76 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -949,9 +949,6 @@ static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
 	if (cmd->hdr.return_code == 0)
 		ether_addr_copy(card->dev->dev_addr,
 				cmd->data.create_destroy_addr.unique_id);
-	else
-		eth_random_addr(card->dev->dev_addr);
-
 	return 0;
 }
 
@@ -1685,21 +1682,6 @@ out_error:
 	return 0;
 }
 
-static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
-		struct qeth_cmd_buffer *iob, int len,
-		int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
-			unsigned long),
-		void *reply_param)
-{
-	QETH_CARD_TEXT(card, 4, "sendarp");
-
-	memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
-	memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
-	       &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
-	return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
-				      reply_cb, reply_param);
-}
-
 static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
 	enum qeth_prot_versions prot,
 	struct qeth_arp_query_info *qinfo)
@@ -1719,11 +1701,9 @@ static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
 		return -ENOMEM;
 	cmd = __ipa_cmd(iob);
 	cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
-	cmd->data.setassparms.data.query_arp.reply_bits = 0;
-	cmd->data.setassparms.data.query_arp.no_entries = 0;
-	rc = qeth_l3_send_ipa_arp_cmd(card, iob,
-			   QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
-			   qeth_l3_arp_query_cb, (void *)qinfo);
+	rc = qeth_send_control_data(card,
+				    QETH_SETASS_BASE_LEN + QETH_ARP_CMD_LEN,
+				    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);
@@ -1929,22 +1909,6 @@ static int qeth_l3_get_cast_type(struct sk_buff *skb)
 	}
 }
 
-static void qeth_l3_fill_af_iucv_hdr(struct qeth_hdr *hdr, struct sk_buff *skb,
-				     unsigned int data_len)
-{
-	char daddr[16];
-
-	hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
-	hdr->hdr.l3.length = data_len;
-	hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
-
-	memset(daddr, 0, sizeof(daddr));
-	daddr[0] = 0xfe;
-	daddr[1] = 0x80;
-	memcpy(&daddr[8], iucv_trans_hdr(skb)->destUserID, 8);
-	memcpy(hdr->hdr.l3.next_hop.ipv6_addr, daddr, 16);
-}
-
 static u8 qeth_l3_cast_type_to_flag(int cast_type)
 {
 	if (cast_type == RTN_MULTICAST)
@@ -1960,6 +1924,7 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
 				struct sk_buff *skb, int ipv, int cast_type,
 				unsigned int data_len)
 {
+	struct qeth_hdr_layer3 *l3_hdr = &hdr->hdr.l3;
 	struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
 
 	hdr->hdr.l3.length = data_len;
@@ -1968,6 +1933,15 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
 		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: */
@@ -2012,13 +1986,11 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
 	} else {
 		/* IPv6 */
 		const struct rt6_info *rt = skb_rt6_info(skb);
-		const struct in6_addr *next_hop;
 
 		if (rt && !ipv6_addr_any(&rt->rt6i_gateway))
-			next_hop = &rt->rt6i_gateway;
+			l3_hdr->next_hop.ipv6_addr = rt->rt6i_gateway;
 		else
-			next_hop = &ipv6_hdr(skb)->daddr;
-		memcpy(hdr->hdr.l3.next_hop.ipv6_addr, next_hop, 16);
+			l3_hdr->next_hop.ipv6_addr = ipv6_hdr(skb)->daddr;
 
 		hdr->hdr.l3.flags |= QETH_HDR_IPV6;
 		if (card->info.type != QETH_CARD_TYPE_IQD)
@@ -2044,84 +2016,25 @@ static void qeth_l3_fixup_headers(struct sk_buff *skb)
 static int qeth_l3_xmit(struct qeth_card *card, struct sk_buff *skb,
 			struct qeth_qdio_out_q *queue, int ipv, int cast_type)
 {
-	unsigned int hw_hdr_len, proto_len, frame_len, elements;
 	unsigned char eth_hdr[ETH_HLEN];
-	bool is_tso = skb_is_gso(skb);
-	unsigned int data_offset = 0;
-	struct qeth_hdr *hdr = NULL;
-	unsigned int hd_len = 0;
-	int push_len, rc;
-	bool is_sg;
-
-	if (is_tso) {
-		hw_hdr_len = sizeof(struct qeth_hdr_tso);
-		proto_len = skb_transport_offset(skb) + tcp_hdrlen(skb) -
-			    ETH_HLEN;
-	} else {
-		hw_hdr_len = sizeof(struct qeth_hdr);
-		proto_len = 0;
-	}
+	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_copy_from_linear_data(skb, eth_hdr, ETH_HLEN);
 	skb_pull(skb, ETH_HLEN);
-	frame_len = skb->len;
 
 	qeth_l3_fixup_headers(skb);
-	push_len = qeth_add_hw_header(card, skb, &hdr, hw_hdr_len, proto_len,
-				      &elements);
-	if (push_len < 0)
-		return push_len;
-	if (is_tso || !push_len) {
-		/* HW header needs its own buffer element. */
-		hd_len = hw_hdr_len + proto_len;
-		data_offset = push_len + proto_len;
-	}
-	memset(hdr, 0, hw_hdr_len);
-
-	if (skb->protocol == htons(ETH_P_AF_IUCV)) {
-		qeth_l3_fill_af_iucv_hdr(hdr, skb, frame_len);
-	} else {
-		qeth_l3_fill_header(card, hdr, skb, ipv, cast_type, frame_len);
-		if (is_tso)
-			qeth_fill_tso_ext((struct qeth_hdr_tso *) hdr,
-					  frame_len - proto_len, skb,
-					  proto_len);
-	}
-
-	is_sg = skb_is_nonlinear(skb);
-	if (IS_IQD(card)) {
-		rc = qeth_do_send_packet_fast(queue, skb, hdr, data_offset,
-					      hd_len);
-	} else {
-		/* TODO: drop skb_orphan() once TX completion is fast enough */
-		skb_orphan(skb);
-		rc = qeth_do_send_packet(card, queue, skb, hdr, data_offset,
-					 hd_len, elements);
-	}
-
-	if (!rc) {
-		if (card->options.performance_stats) {
-			card->perf_stats.buf_elements_sent += elements;
-			if (is_sg)
-				card->perf_stats.sg_skbs_sent++;
-			if (is_tso) {
-				card->perf_stats.large_send_bytes += frame_len;
-				card->perf_stats.large_send_cnt++;
-			}
-		}
-	} else {
-		if (!push_len)
-			kmem_cache_free(qeth_core_header_cache, hdr);
-		if (rc == -EBUSY) {
-			/* roll back to ETH header */
-			skb_pull(skb, push_len);
-			skb_push(skb, ETH_HLEN);
-			skb_copy_to_linear_data(skb, eth_hdr, ETH_HLEN);
-		}
+	rc = qeth_xmit(card, skb, queue, ipv, cast_type, qeth_l3_fill_header);
+	if (rc == -EBUSY) {
+		/* roll back to ETH header */
+		skb_push(skb, ETH_HLEN);
+		skb_copy_to_linear_data(skb, eth_hdr, ETH_HLEN);
 	}
 	return rc;
 }
@@ -2366,9 +2279,6 @@ static int qeth_l3_setup_netdev(struct qeth_card *card, bool carrier_ok)
 		rc = qeth_l3_iqd_read_initial_mac(card);
 		if (rc)
 			goto out;
-
-		if (card->options.hsuid[0])
-			memcpy(card->dev->perm_addr, card->options.hsuid, 9);
 	} else
 		return -ENODEV;
 
@@ -2507,7 +2417,7 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 			__qeth_l3_open(card->dev);
 			qeth_l3_set_rx_mode(card->dev);
 		} else {
-			dev_open(card->dev);
+			dev_open(card->dev, NULL);
 		}
 		rtnl_unlock();
 	}
diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c
index c9c57b4a0b71..fc9dbad476c0 100644
--- a/drivers/s390/virtio/virtio_ccw.c
+++ b/drivers/s390/virtio/virtio_ccw.c
@@ -769,6 +769,17 @@ out_free:
 	return rc;
 }
 
+static void ccw_transport_features(struct virtio_device *vdev)
+{
+	/*
+	 * Packed ring isn't enabled on virtio_ccw for now,
+	 * because virtio_ccw uses some legacy accessors,
+	 * e.g. virtqueue_get_avail() and virtqueue_get_used()
+	 * which aren't available in packed ring currently.
+	 */
+	__virtio_clear_bit(vdev, VIRTIO_F_RING_PACKED);
+}
+
 static int virtio_ccw_finalize_features(struct virtio_device *vdev)
 {
 	struct virtio_ccw_device *vcdev = to_vc_device(vdev);
@@ -795,6 +806,9 @@ static int virtio_ccw_finalize_features(struct virtio_device *vdev)
 	/* Give virtio_ring a chance to accept features. */
 	vring_transport_features(vdev);
 
+	/* Give virtio_ccw a chance to accept features. */
+	ccw_transport_features(vdev);
+
 	features->index = 0;
 	features->features = cpu_to_le32((u32)vdev->features);
 	/* Write the first half of the feature bits to the host. */