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

Pull networking updates from David Miller:
 "Highlights:

   1) Steady transitioning of the BPF instructure to a generic spot so
      all kernel subsystems can make use of it, from Alexei Starovoitov.

   2) SFC driver supports busy polling, from Alexandre Rames.

   3) Take advantage of hash table in UDP multicast delivery, from David
      Held.

   4) Lighten locking, in particular by getting rid of the LRU lists, in
      inet frag handling.  From Florian Westphal.

   5) Add support for various RFC6458 control messages in SCTP, from
      Geir Ola Vaagland.

   6) Allow to filter bridge forwarding database dumps by device, from
      Jamal Hadi Salim.

   7) virtio-net also now supports busy polling, from Jason Wang.

   8) Some low level optimization tweaks in pktgen from Jesper Dangaard
      Brouer.

   9) Add support for ipv6 address generation modes, so that userland
      can have some input into the process.  From Jiri Pirko.

  10) Consolidate common TCP connection request code in ipv4 and ipv6,
      from Octavian Purdila.

  11) New ARP packet logger in netfilter, from Pablo Neira Ayuso.

  12) Generic resizable RCU hash table, with intial users in netlink and
      nftables.  From Thomas Graf.

  13) Maintain a name assignment type so that userspace can see where a
      network device name came from (enumerated by kernel, assigned
      explicitly by userspace, etc.) From Tom Gundersen.

  14) Automatic flow label generation on transmit in ipv6, from Tom
      Herbert.

  15) New packet timestamping facilities from Willem de Bruijn, meant to
      assist in measuring latencies going into/out-of the packet
      scheduler, latency from TCP data transmission to ACK, etc"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1536 commits)
  cxgb4 : Disable recursive mailbox commands when enabling vi
  net: reduce USB network driver config options.
  tg3: Modify tg3_tso_bug() to handle multiple TX rings
  amd-xgbe: Perform phy connect/disconnect at dev open/stop
  amd-xgbe: Use dma_set_mask_and_coherent to set DMA mask
  net: sun4i-emac: fix memory leak on bad packet
  sctp: fix possible seqlock seadlock in sctp_packet_transmit()
  Revert "net: phy: Set the driver when registering an MDIO bus device"
  cxgb4vf: Turn off SGE RX/TX Callback Timers and interrupts in PCI shutdown routine
  team: Simplify return path of team_newlink
  bridge: Update outdated comment on promiscuous mode
  net-timestamp: ACK timestamp for bytestreams
  net-timestamp: TCP timestamping
  net-timestamp: SCHED timestamp on entering packet scheduler
  net-timestamp: add key to disambiguate concurrent datagrams
  net-timestamp: move timestamp flags out of sk_flags
  net-timestamp: extend SCM_TIMESTAMPING ancillary data struct
  cxgb4i : Move stray CPL definitions to cxgb4 driver
  tcp: reduce spurious retransmits due to transient SACK reneging
  qlcnic: Initialize dcbnl_ops before register_netdev
  ...

1 files changed, 87 insertions, 67 deletions

diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 1cac29ebb05b..9dd06699b09c 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -43,12 +43,12 @@ static ssize_t netdev_show(const struct device *dev,
 			   struct device_attribute *attr, char *buf,
 			   ssize_t (*format)(const struct net_device *, char *))
 {
-	struct net_device *net = to_net_dev(dev);
+	struct net_device *ndev = to_net_dev(dev);
 	ssize_t ret = -EINVAL;
 
 	read_lock(&dev_base_lock);
-	if (dev_isalive(net))
-		ret = (*format)(net, buf);
+	if (dev_isalive(ndev))
+		ret = (*format)(ndev, buf);
 	read_unlock(&dev_base_lock);
 
 	return ret;
@@ -56,9 +56,9 @@ static ssize_t netdev_show(const struct device *dev,
 
 /* generate a show function for simple field */
 #define NETDEVICE_SHOW(field, format_string)				\
-static ssize_t format_##field(const struct net_device *net, char *buf)	\
+static ssize_t format_##field(const struct net_device *dev, char *buf)	\
 {									\
-	return sprintf(buf, format_string, net->field);			\
+	return sprintf(buf, format_string, dev->field);			\
 }									\
 static ssize_t field##_show(struct device *dev,				\
 			    struct device_attribute *attr, char *buf)	\
@@ -112,16 +112,35 @@ NETDEVICE_SHOW_RO(ifindex, fmt_dec);
 NETDEVICE_SHOW_RO(type, fmt_dec);
 NETDEVICE_SHOW_RO(link_mode, fmt_dec);
 
+static ssize_t format_name_assign_type(const struct net_device *dev, char *buf)
+{
+	return sprintf(buf, fmt_dec, dev->name_assign_type);
+}
+
+static ssize_t name_assign_type_show(struct device *dev,
+				     struct device_attribute *attr,
+				     char *buf)
+{
+	struct net_device *ndev = to_net_dev(dev);
+	ssize_t ret = -EINVAL;
+
+	if (ndev->name_assign_type != NET_NAME_UNKNOWN)
+		ret = netdev_show(dev, attr, buf, format_name_assign_type);
+
+	return ret;
+}
+static DEVICE_ATTR_RO(name_assign_type);
+
 /* use same locking rules as GIFHWADDR ioctl's */
 static ssize_t address_show(struct device *dev, struct device_attribute *attr,
 			    char *buf)
 {
-	struct net_device *net = to_net_dev(dev);
+	struct net_device *ndev = to_net_dev(dev);
 	ssize_t ret = -EINVAL;
 
 	read_lock(&dev_base_lock);
-	if (dev_isalive(net))
-		ret = sysfs_format_mac(buf, net->dev_addr, net->addr_len);
+	if (dev_isalive(ndev))
+		ret = sysfs_format_mac(buf, ndev->dev_addr, ndev->addr_len);
 	read_unlock(&dev_base_lock);
 	return ret;
 }
@@ -130,18 +149,18 @@ static DEVICE_ATTR_RO(address);
 static ssize_t broadcast_show(struct device *dev,
 			      struct device_attribute *attr, char *buf)
 {
-	struct net_device *net = to_net_dev(dev);
-	if (dev_isalive(net))
-		return sysfs_format_mac(buf, net->broadcast, net->addr_len);
+	struct net_device *ndev = to_net_dev(dev);
+	if (dev_isalive(ndev))
+		return sysfs_format_mac(buf, ndev->broadcast, ndev->addr_len);
 	return -EINVAL;
 }
 static DEVICE_ATTR_RO(broadcast);
 
-static int change_carrier(struct net_device *net, unsigned long new_carrier)
+static int change_carrier(struct net_device *dev, unsigned long new_carrier)
 {
-	if (!netif_running(net))
+	if (!netif_running(dev))
 		return -EINVAL;
-	return dev_change_carrier(net, (bool) new_carrier);
+	return dev_change_carrier(dev, (bool) new_carrier);
 }
 
 static ssize_t carrier_store(struct device *dev, struct device_attribute *attr,
@@ -265,9 +284,9 @@ static DEVICE_ATTR_RO(carrier_changes);
 
 /* read-write attributes */
 
-static int change_mtu(struct net_device *net, unsigned long new_mtu)
+static int change_mtu(struct net_device *dev, unsigned long new_mtu)
 {
-	return dev_set_mtu(net, (int) new_mtu);
+	return dev_set_mtu(dev, (int) new_mtu);
 }
 
 static ssize_t mtu_store(struct device *dev, struct device_attribute *attr,
@@ -277,9 +296,9 @@ static ssize_t mtu_store(struct device *dev, struct device_attribute *attr,
 }
 NETDEVICE_SHOW_RW(mtu, fmt_dec);
 
-static int change_flags(struct net_device *net, unsigned long new_flags)
+static int change_flags(struct net_device *dev, unsigned long new_flags)
 {
-	return dev_change_flags(net, (unsigned int) new_flags);
+	return dev_change_flags(dev, (unsigned int) new_flags);
 }
 
 static ssize_t flags_store(struct device *dev, struct device_attribute *attr,
@@ -289,9 +308,9 @@ static ssize_t flags_store(struct device *dev, struct device_attribute *attr,
 }
 NETDEVICE_SHOW_RW(flags, fmt_hex);
 
-static int change_tx_queue_len(struct net_device *net, unsigned long new_len)
+static int change_tx_queue_len(struct net_device *dev, unsigned long new_len)
 {
-	net->tx_queue_len = new_len;
+	dev->tx_queue_len = new_len;
 	return 0;
 }
 
@@ -344,9 +363,9 @@ static ssize_t ifalias_show(struct device *dev,
 }
 static DEVICE_ATTR_RW(ifalias);
 
-static int change_group(struct net_device *net, unsigned long new_group)
+static int change_group(struct net_device *dev, unsigned long new_group)
 {
-	dev_set_group(net, (int) new_group);
+	dev_set_group(dev, (int) new_group);
 	return 0;
 }
 
@@ -387,6 +406,7 @@ static struct attribute *net_class_attrs[] = {
 	&dev_attr_dev_port.attr,
 	&dev_attr_iflink.attr,
 	&dev_attr_ifindex.attr,
+	&dev_attr_name_assign_type.attr,
 	&dev_attr_addr_assign_type.attr,
 	&dev_attr_addr_len.attr,
 	&dev_attr_link_mode.attr,
@@ -776,20 +796,20 @@ static struct kobj_type rx_queue_ktype = {
 	.namespace = rx_queue_namespace
 };
 
-static int rx_queue_add_kobject(struct net_device *net, int index)
+static int rx_queue_add_kobject(struct net_device *dev, int index)
 {
-	struct netdev_rx_queue *queue = net->_rx + index;
+	struct netdev_rx_queue *queue = dev->_rx + index;
 	struct kobject *kobj = &queue->kobj;
 	int error = 0;
 
-	kobj->kset = net->queues_kset;
+	kobj->kset = dev->queues_kset;
 	error = kobject_init_and_add(kobj, &rx_queue_ktype, NULL,
 	    "rx-%u", index);
 	if (error)
 		goto exit;
 
-	if (net->sysfs_rx_queue_group) {
-		error = sysfs_create_group(kobj, net->sysfs_rx_queue_group);
+	if (dev->sysfs_rx_queue_group) {
+		error = sysfs_create_group(kobj, dev->sysfs_rx_queue_group);
 		if (error)
 			goto exit;
 	}
@@ -805,18 +825,18 @@ exit:
 #endif /* CONFIG_SYSFS */
 
 int
-net_rx_queue_update_kobjects(struct net_device *net, int old_num, int new_num)
+net_rx_queue_update_kobjects(struct net_device *dev, int old_num, int new_num)
 {
 #ifdef CONFIG_SYSFS
 	int i;
 	int error = 0;
 
 #ifndef CONFIG_RPS
-	if (!net->sysfs_rx_queue_group)
+	if (!dev->sysfs_rx_queue_group)
 		return 0;
 #endif
 	for (i = old_num; i < new_num; i++) {
-		error = rx_queue_add_kobject(net, i);
+		error = rx_queue_add_kobject(dev, i);
 		if (error) {
 			new_num = old_num;
 			break;
@@ -824,10 +844,10 @@ net_rx_queue_update_kobjects(struct net_device *net, int old_num, int new_num)
 	}
 
 	while (--i >= new_num) {
-		if (net->sysfs_rx_queue_group)
-			sysfs_remove_group(&net->_rx[i].kobj,
-					   net->sysfs_rx_queue_group);
-		kobject_put(&net->_rx[i].kobj);
+		if (dev->sysfs_rx_queue_group)
+			sysfs_remove_group(&dev->_rx[i].kobj,
+					   dev->sysfs_rx_queue_group);
+		kobject_put(&dev->_rx[i].kobj);
 	}
 
 	return error;
@@ -1135,13 +1155,13 @@ static struct kobj_type netdev_queue_ktype = {
 	.namespace = netdev_queue_namespace,
 };
 
-static int netdev_queue_add_kobject(struct net_device *net, int index)
+static int netdev_queue_add_kobject(struct net_device *dev, int index)
 {
-	struct netdev_queue *queue = net->_tx + index;
+	struct netdev_queue *queue = dev->_tx + index;
 	struct kobject *kobj = &queue->kobj;
 	int error = 0;
 
-	kobj->kset = net->queues_kset;
+	kobj->kset = dev->queues_kset;
 	error = kobject_init_and_add(kobj, &netdev_queue_ktype, NULL,
 	    "tx-%u", index);
 	if (error)
@@ -1164,14 +1184,14 @@ exit:
 #endif /* CONFIG_SYSFS */
 
 int
-netdev_queue_update_kobjects(struct net_device *net, int old_num, int new_num)
+netdev_queue_update_kobjects(struct net_device *dev, int old_num, int new_num)
 {
 #ifdef CONFIG_SYSFS
 	int i;
 	int error = 0;
 
 	for (i = old_num; i < new_num; i++) {
-		error = netdev_queue_add_kobject(net, i);
+		error = netdev_queue_add_kobject(dev, i);
 		if (error) {
 			new_num = old_num;
 			break;
@@ -1179,7 +1199,7 @@ netdev_queue_update_kobjects(struct net_device *net, int old_num, int new_num)
 	}
 
 	while (--i >= new_num) {
-		struct netdev_queue *queue = net->_tx + i;
+		struct netdev_queue *queue = dev->_tx + i;
 
 #ifdef CONFIG_BQL
 		sysfs_remove_group(&queue->kobj, &dql_group);
@@ -1193,25 +1213,25 @@ netdev_queue_update_kobjects(struct net_device *net, int old_num, int new_num)
 #endif /* CONFIG_SYSFS */
 }
 
-static int register_queue_kobjects(struct net_device *net)
+static int register_queue_kobjects(struct net_device *dev)
 {
 	int error = 0, txq = 0, rxq = 0, real_rx = 0, real_tx = 0;
 
 #ifdef CONFIG_SYSFS
-	net->queues_kset = kset_create_and_add("queues",
-	    NULL, &net->dev.kobj);
-	if (!net->queues_kset)
+	dev->queues_kset = kset_create_and_add("queues",
+	    NULL, &dev->dev.kobj);
+	if (!dev->queues_kset)
 		return -ENOMEM;
-	real_rx = net->real_num_rx_queues;
+	real_rx = dev->real_num_rx_queues;
 #endif
-	real_tx = net->real_num_tx_queues;
+	real_tx = dev->real_num_tx_queues;
 
-	error = net_rx_queue_update_kobjects(net, 0, real_rx);
+	error = net_rx_queue_update_kobjects(dev, 0, real_rx);
 	if (error)
 		goto error;
 	rxq = real_rx;
 
-	error = netdev_queue_update_kobjects(net, 0, real_tx);
+	error = netdev_queue_update_kobjects(dev, 0, real_tx);
 	if (error)
 		goto error;
 	txq = real_tx;
@@ -1219,24 +1239,24 @@ static int register_queue_kobjects(struct net_device *net)
 	return 0;
 
 error:
-	netdev_queue_update_kobjects(net, txq, 0);
-	net_rx_queue_update_kobjects(net, rxq, 0);
+	netdev_queue_update_kobjects(dev, txq, 0);
+	net_rx_queue_update_kobjects(dev, rxq, 0);
 	return error;
 }
 
-static void remove_queue_kobjects(struct net_device *net)
+static void remove_queue_kobjects(struct net_device *dev)
 {
 	int real_rx = 0, real_tx = 0;
 
 #ifdef CONFIG_SYSFS
-	real_rx = net->real_num_rx_queues;
+	real_rx = dev->real_num_rx_queues;
 #endif
-	real_tx = net->real_num_tx_queues;
+	real_tx = dev->real_num_tx_queues;
 
-	net_rx_queue_update_kobjects(net, real_rx, 0);
-	netdev_queue_update_kobjects(net, real_tx, 0);
+	net_rx_queue_update_kobjects(dev, real_rx, 0);
+	netdev_queue_update_kobjects(dev, real_tx, 0);
 #ifdef CONFIG_SYSFS
-	kset_unregister(net->queues_kset);
+	kset_unregister(dev->queues_kset);
 #endif
 }
 
@@ -1329,13 +1349,13 @@ static struct class net_class = {
 /* Delete sysfs entries but hold kobject reference until after all
  * netdev references are gone.
  */
-void netdev_unregister_kobject(struct net_device * net)
+void netdev_unregister_kobject(struct net_device *ndev)
 {
-	struct device *dev = &(net->dev);
+	struct device *dev = &(ndev->dev);
 
 	kobject_get(&dev->kobj);
 
-	remove_queue_kobjects(net);
+	remove_queue_kobjects(ndev);
 
 	pm_runtime_set_memalloc_noio(dev, false);
 
@@ -1343,18 +1363,18 @@ void netdev_unregister_kobject(struct net_device * net)
 }
 
 /* Create sysfs entries for network device. */
-int netdev_register_kobject(struct net_device *net)
+int netdev_register_kobject(struct net_device *ndev)
 {
-	struct device *dev = &(net->dev);
-	const struct attribute_group **groups = net->sysfs_groups;
+	struct device *dev = &(ndev->dev);
+	const struct attribute_group **groups = ndev->sysfs_groups;
 	int error = 0;
 
 	device_initialize(dev);
 	dev->class = &net_class;
-	dev->platform_data = net;
+	dev->platform_data = ndev;
 	dev->groups = groups;
 
-	dev_set_name(dev, "%s", net->name);
+	dev_set_name(dev, "%s", ndev->name);
 
 #ifdef CONFIG_SYSFS
 	/* Allow for a device specific group */
@@ -1364,10 +1384,10 @@ int netdev_register_kobject(struct net_device *net)
 	*groups++ = &netstat_group;
 
 #if IS_ENABLED(CONFIG_WIRELESS_EXT) || IS_ENABLED(CONFIG_CFG80211)
-	if (net->ieee80211_ptr)
+	if (ndev->ieee80211_ptr)
 		*groups++ = &wireless_group;
 #if IS_ENABLED(CONFIG_WIRELESS_EXT)
-	else if (net->wireless_handlers)
+	else if (ndev->wireless_handlers)
 		*groups++ = &wireless_group;
 #endif
 #endif
@@ -1377,7 +1397,7 @@ int netdev_register_kobject(struct net_device *net)
 	if (error)
 		return error;
 
-	error = register_queue_kobjects(net);
+	error = register_queue_kobjects(ndev);
 	if (error) {
 		device_del(dev);
 		return error;