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

Pull networking updates from David Miller:
 "Highlights:

   1) Support AES128-CCM ciphers in kTLS, from Vakul Garg.

   2) Add fib_sync_mem to control the amount of dirty memory we allow to
      queue up between synchronize RCU calls, from David Ahern.

   3) Make flow classifier more lockless, from Vlad Buslov.

   4) Add PHY downshift support to aquantia driver, from Heiner
      Kallweit.

   5) Add SKB cache for TCP rx and tx, from Eric Dumazet. This reduces
      contention on SLAB spinlocks in heavy RPC workloads.

   6) Partial GSO offload support in XFRM, from Boris Pismenny.

   7) Add fast link down support to ethtool, from Heiner Kallweit.

   8) Use siphash for IP ID generator, from Eric Dumazet.

   9) Pull nexthops even further out from ipv4/ipv6 routes and FIB
      entries, from David Ahern.

  10) Move skb->xmit_more into a per-cpu variable, from Florian
      Westphal.

  11) Improve eBPF verifier speed and increase maximum program size,
      from Alexei Starovoitov.

  12) Eliminate per-bucket spinlocks in rhashtable, and instead use bit
      spinlocks. From Neil Brown.

  13) Allow tunneling with GUE encap in ipvs, from Jacky Hu.

  14) Improve link partner cap detection in generic PHY code, from
      Heiner Kallweit.

  15) Add layer 2 encap support to bpf_skb_adjust_room(), from Alan
      Maguire.

  16) Remove SKB list implementation assumptions in SCTP, your's truly.

  17) Various cleanups, optimizations, and simplifications in r8169
      driver. From Heiner Kallweit.

  18) Add memory accounting on TX and RX path of SCTP, from Xin Long.

  19) Switch PHY drivers over to use dynamic featue detection, from
      Heiner Kallweit.

  20) Support flow steering without masking in dpaa2-eth, from Ioana
      Ciocoi.

  21) Implement ndo_get_devlink_port in netdevsim driver, from Jiri
      Pirko.

  22) Increase the strict parsing of current and future netlink
      attributes, also export such policies to userspace. From Johannes
      Berg.

  23) Allow DSA tag drivers to be modular, from Andrew Lunn.

  24) Remove legacy DSA probing support, also from Andrew Lunn.

  25) Allow ll_temac driver to be used on non-x86 platforms, from Esben
      Haabendal.

  26) Add a generic tracepoint for TX queue timeouts to ease debugging,
      from Cong Wang.

  27) More indirect call optimizations, from Paolo Abeni"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1763 commits)
  cxgb4: Fix error path in cxgb4_init_module
  net: phy: improve pause mode reporting in phy_print_status
  dt-bindings: net: Fix a typo in the phy-mode list for ethernet bindings
  net: macb: Change interrupt and napi enable order in open
  net: ll_temac: Improve error message on error IRQ
  net/sched: remove block pointer from common offload structure
  net: ethernet: support of_get_mac_address new ERR_PTR error
  net: usb: smsc: fix warning reported by kbuild test robot
  staging: octeon-ethernet: Fix of_get_mac_address ERR_PTR check
  net: dsa: support of_get_mac_address new ERR_PTR error
  net: dsa: sja1105: Fix status initialization in sja1105_get_ethtool_stats
  vrf: sit mtu should not be updated when vrf netdev is the link
  net: dsa: Fix error cleanup path in dsa_init_module
  l2tp: Fix possible NULL pointer dereference
  taprio: add null check on sched_nest to avoid potential null pointer dereference
  net: mvpp2: cls: fix less than zero check on a u32 variable
  net_sched: sch_fq: handle non connected flows
  net_sched: sch_fq: do not assume EDT packets are ordered
  net: hns3: use devm_kcalloc when allocating desc_cb
  net: hns3: some cleanup for struct hns3_enet_ring
  ...

1 files changed, 50 insertions, 49 deletions

diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index c3067fd3bd9e..218801232ca2 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -149,29 +149,16 @@ static int qeth_l2_remove_mac(struct qeth_card *card, u8 *mac)
 	return rc;
 }
 
-static void qeth_l2_del_all_macs(struct qeth_card *card)
+static void qeth_l2_drain_rx_mode_cache(struct qeth_card *card)
 {
 	struct qeth_mac *mac;
 	struct hlist_node *tmp;
 	int i;
 
-	spin_lock_bh(&card->mclock);
 	hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
 		hash_del(&mac->hnode);
 		kfree(mac);
 	}
-	spin_unlock_bh(&card->mclock);
-}
-
-static int qeth_l2_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
-{
-	if (card->info.type == QETH_CARD_TYPE_OSN)
-		return RTN_UNICAST;
-	if (is_broadcast_ether_addr(skb->data))
-		return RTN_BROADCAST;
-	if (is_multicast_ether_addr(skb->data))
-		return RTN_MULTICAST;
-	return RTN_UNICAST;
 }
 
 static void qeth_l2_fill_header(struct qeth_qdio_out_q *queue,
@@ -292,14 +279,16 @@ static void qeth_l2_stop_card(struct qeth_card *card)
 
 	qeth_set_allowed_threads(card, 0, 1);
 
+	cancel_work_sync(&card->rx_mode_work);
+	qeth_l2_drain_rx_mode_cache(card);
+
 	if (card->state == CARD_STATE_SOFTSETUP) {
-		qeth_l2_del_all_macs(card);
 		qeth_clear_ipacmd_list(card);
 		card->state = CARD_STATE_HARDSETUP;
 	}
 	if (card->state == CARD_STATE_HARDSETUP) {
 		qeth_qdio_clear_card(card, 0);
-		qeth_clear_qdio_buffers(card);
+		qeth_drain_output_queues(card);
 		qeth_clear_working_pool_list(card);
 		card->state = CARD_STATE_DOWN;
 	}
@@ -334,13 +323,11 @@ static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
 		case QETH_HEADER_TYPE_LAYER2:
 			skb->protocol = eth_type_trans(skb, skb->dev);
 			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;
 			napi_gro_receive(&card->napi, skb);
 			break;
 		case QETH_HEADER_TYPE_OSN:
-			if (card->info.type == QETH_CARD_TYPE_OSN) {
+			if (IS_OSN(card)) {
 				skb_push(skb, sizeof(struct qeth_hdr));
 				skb_copy_to_linear_data(skb, hdr,
 						sizeof(struct qeth_hdr));
@@ -391,8 +378,7 @@ static int qeth_l2_request_initial_mac(struct qeth_card *card)
 	}
 
 	/* some devices don't support a custom MAC address: */
-	if (card->info.type == QETH_CARD_TYPE_OSM ||
-	    card->info.type == QETH_CARD_TYPE_OSX)
+	if (IS_OSM(card) || IS_OSX(card))
 		return (rc) ? rc : -EADDRNOTAVAIL;
 	eth_hw_addr_random(card->dev);
 
@@ -515,9 +501,11 @@ static void qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha)
 	hash_add(card->mac_htable, &mac->hnode, mac_hash);
 }
 
-static void qeth_l2_set_rx_mode(struct net_device *dev)
+static void qeth_l2_rx_mode_work(struct work_struct *work)
 {
-	struct qeth_card *card = dev->ml_priv;
+	struct qeth_card *card = container_of(work, struct qeth_card,
+					      rx_mode_work);
+	struct net_device *dev = card->dev;
 	struct netdev_hw_addr *ha;
 	struct qeth_mac *mac;
 	struct hlist_node *tmp;
@@ -526,12 +514,12 @@ static void qeth_l2_set_rx_mode(struct net_device *dev)
 
 	QETH_CARD_TEXT(card, 3, "setmulti");
 
-	spin_lock_bh(&card->mclock);
-
+	netif_addr_lock_bh(dev);
 	netdev_for_each_mc_addr(ha, dev)
 		qeth_l2_add_mac(card, ha);
 	netdev_for_each_uc_addr(ha, dev)
 		qeth_l2_add_mac(card, ha);
+	netif_addr_unlock_bh(dev);
 
 	hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
 		switch (mac->disp_flag) {
@@ -554,8 +542,6 @@ static void qeth_l2_set_rx_mode(struct net_device *dev)
 		}
 	}
 
-	spin_unlock_bh(&card->mclock);
-
 	if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
 		qeth_setadp_promisc_mode(card);
 	else
@@ -586,7 +572,7 @@ static int qeth_l2_xmit_osn(struct qeth_card *card, struct sk_buff *skb,
 	}
 
 	elements += qeth_count_elements(skb, hd_len);
-	if (elements > QETH_MAX_BUFFER_ELEMENTS(card)) {
+	if (elements > queue->max_elements) {
 		rc = -E2BIG;
 		goto out;
 	}
@@ -603,37 +589,45 @@ static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb,
 					   struct net_device *dev)
 {
 	struct qeth_card *card = dev->ml_priv;
-	int cast_type = qeth_l2_get_cast_type(card, skb);
-	int ipv = qeth_get_ip_version(skb);
+	u16 txq = skb_get_queue_mapping(skb);
 	struct qeth_qdio_out_q *queue;
 	int tx_bytes = skb->len;
 	int rc;
 
-	queue = qeth_get_tx_queue(card, skb, ipv, cast_type);
-
-	netif_stop_queue(dev);
+	if (IS_IQD(card))
+		txq = qeth_iqd_translate_txq(dev, txq);
+	queue = card->qdio.out_qs[txq];
 
 	if (IS_OSN(card))
 		rc = qeth_l2_xmit_osn(card, skb, queue);
 	else
-		rc = qeth_xmit(card, skb, queue, ipv, cast_type,
+		rc = qeth_xmit(card, skb, queue, qeth_get_ip_version(skb),
+			       qeth_get_ether_cast_type(skb),
 			       qeth_l2_fill_header);
 
 	if (!rc) {
 		QETH_TXQ_STAT_INC(queue, tx_packets);
 		QETH_TXQ_STAT_ADD(queue, tx_bytes, tx_bytes);
-		netif_wake_queue(dev);
 		return NETDEV_TX_OK;
-	} else if (rc == -EBUSY) {
-		return NETDEV_TX_BUSY;
-	} /* else fall through */
+	}
 
 	QETH_TXQ_STAT_INC(queue, tx_dropped);
 	kfree_skb(skb);
-	netif_wake_queue(dev);
 	return NETDEV_TX_OK;
 }
 
+static u16 qeth_l2_select_queue(struct net_device *dev, struct sk_buff *skb,
+				struct net_device *sb_dev)
+{
+	struct qeth_card *card = dev->ml_priv;
+
+	if (IS_IQD(card))
+		return qeth_iqd_select_queue(dev, skb,
+					     qeth_get_ether_cast_type(skb),
+					     sb_dev);
+	return qeth_get_priority_queue(card, skb);
+}
+
 static const struct device_type qeth_l2_devtype = {
 	.name = "qeth_layer2",
 	.groups = qeth_l2_attr_groups,
@@ -653,6 +647,7 @@ static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
 	}
 
 	hash_init(card->mac_htable);
+	INIT_WORK(&card->rx_mode_work, qeth_l2_rx_mode_work);
 	return 0;
 }
 
@@ -673,12 +668,20 @@ static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
 		unregister_netdev(card->dev);
 }
 
+static void qeth_l2_set_rx_mode(struct net_device *dev)
+{
+	struct qeth_card *card = dev->ml_priv;
+
+	schedule_work(&card->rx_mode_work);
+}
+
 static const struct net_device_ops qeth_l2_netdev_ops = {
 	.ndo_open		= qeth_open,
 	.ndo_stop		= qeth_stop,
 	.ndo_get_stats64	= qeth_get_stats64,
 	.ndo_start_xmit		= qeth_l2_hard_start_xmit,
 	.ndo_features_check	= qeth_features_check,
+	.ndo_select_queue	= qeth_l2_select_queue,
 	.ndo_validate_addr	= qeth_l2_validate_addr,
 	.ndo_set_rx_mode	= qeth_l2_set_rx_mode,
 	.ndo_do_ioctl		= qeth_do_ioctl,
@@ -721,7 +724,7 @@ static int qeth_l2_setup_netdev(struct qeth_card *card, bool carrier_ok)
 		card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
 	}
 
-	if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
+	if (IS_OSD(card) && !IS_VM_NIC(card)) {
 		card->dev->features |= NETIF_F_SG;
 		/* OSA 3S and earlier has no RX/TX support */
 		if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) {
@@ -831,8 +834,7 @@ static int qeth_l2_set_online(struct ccwgroup_device *gdev)
 	/* softsetup */
 	QETH_DBF_TEXT(SETUP, 2, "softsetp");
 
-	if ((card->info.type == QETH_CARD_TYPE_OSD) ||
-	    (card->info.type == QETH_CARD_TYPE_OSX)) {
+	if (IS_OSD(card) || IS_OSX(card)) {
 		rc = qeth_l2_start_ipassists(card);
 		if (rc)
 			goto out_remove;
@@ -1042,13 +1044,13 @@ static int qeth_osn_send_control_data(struct qeth_card *card, int len,
 
 	QETH_CARD_TEXT(card, 5, "osndctrd");
 
-	wait_event(card->wait_q,
-		   atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
-	qeth_prepare_control_data(card, len, iob);
+	wait_event(card->wait_q, qeth_trylock_channel(channel));
+	iob->finalize(card, iob, len);
+	QETH_DBF_HEX(CTRL, 2, iob->data, min(len, QETH_DBF_CTRL_LEN));
 	QETH_CARD_TEXT(card, 6, "osnoirqp");
 	spin_lock_irq(get_ccwdev_lock(channel->ccwdev));
 	rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw,
-				      (addr_t) iob, 0, 0, QETH_IPA_TIMEOUT);
+				      (addr_t) iob, 0, 0, iob->timeout);
 	spin_unlock_irq(get_ccwdev_lock(channel->ccwdev));
 	if (rc) {
 		QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
@@ -1456,9 +1458,8 @@ static struct qeth_cmd_buffer *qeth_sbp_build_cmd(struct qeth_card *card,
 						  enum qeth_ipa_sbp_cmd sbp_cmd,
 						  unsigned int cmd_length)
 {
-	enum qeth_ipa_cmds ipa_cmd = (card->info.type == QETH_CARD_TYPE_IQD) ?
-					IPA_CMD_SETBRIDGEPORT_IQD :
-					IPA_CMD_SETBRIDGEPORT_OSA;
+	enum qeth_ipa_cmds ipa_cmd = IS_IQD(card) ? IPA_CMD_SETBRIDGEPORT_IQD :
+						    IPA_CMD_SETBRIDGEPORT_OSA;
 	struct qeth_cmd_buffer *iob;
 	struct qeth_ipa_cmd *cmd;