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

Pull networking updates from David Miller:
 "This is a re-do of the net-next pull request for the current merge
  window.  The only difference from the one I made the other day is that
  this has Eliezer's interface renames and the timeout handling changes
  made based upon your feedback, as well as a few bug fixes that have
  trickeled in.

  Highlights:

   1) Low latency device polling, eliminating the cost of interrupt
      handling and context switches.  Allows direct polling of a network
      device from socket operations, such as recvmsg() and poll().

      Currently ixgbe, mlx4, and bnx2x support this feature.

      Full high level description, performance numbers, and design in
      commit 0a4db187a999 ("Merge branch 'll_poll'")

      From Eliezer Tamir.

   2) With the routing cache removed, ip_check_mc_rcu() gets exercised
      more than ever before in the case where we have lots of multicast
      addresses.  Use a hash table instead of a simple linked list, from
      Eric Dumazet.

   3) Add driver for Atheros CQA98xx 802.11ac wireless devices, from
      Bartosz Markowski, Janusz Dziedzic, Kalle Valo, Marek Kwaczynski,
      Marek Puzyniak, Michal Kazior, and Sujith Manoharan.

   4) Support reporting the TUN device persist flag to userspace, from
      Pavel Emelyanov.

   5) Allow controlling network device VF link state using netlink, from
      Rony Efraim.

   6) Support GRE tunneling in openvswitch, from Pravin B Shelar.

   7) Adjust SOCK_MIN_RCVBUF and SOCK_MIN_SNDBUF for modern times, from
      Daniel Borkmann and Eric Dumazet.

   8) Allow controlling of TCP quickack behavior on a per-route basis,
      from Cong Wang.

   9) Several bug fixes and improvements to vxlan from Stephen
      Hemminger, Pravin B Shelar, and Mike Rapoport.  In particular,
      support receiving on multiple UDP ports.

  10) Major cleanups, particular in the area of debugging and cookie
      lifetime handline, to the SCTP protocol code.  From Daniel
      Borkmann.

  11) Allow packets to cross network namespaces when traversing tunnel
      devices.  From Nicolas Dichtel.

  12) Allow monitoring netlink traffic via AF_PACKET sockets, in a
      manner akin to how we monitor real network traffic via ptype_all.
      From Daniel Borkmann.

  13) Several bug fixes and improvements for the new alx device driver,
      from Johannes Berg.

  14) Fix scalability issues in the netem packet scheduler's time queue,
      by using an rbtree.  From Eric Dumazet.

  15) Several bug fixes in TCP loss recovery handling, from Yuchung
      Cheng.

  16) Add support for GSO segmentation of MPLS packets, from Simon
      Horman.

  17) Make network notifiers have a real data type for the opaque
      pointer that's passed into them.  Use this to properly handle
      network device flag changes in arp_netdev_event().  From Jiri
      Pirko and Timo Teräs.

  18) Convert several drivers over to module_pci_driver(), from Peter
      Huewe.

  19) tcp_fixup_rcvbuf() can loop 500 times over loopback, just use a
      O(1) calculation instead.  From Eric Dumazet.

  20) Support setting of explicit tunnel peer addresses in ipv6, just
      like ipv4.  From Nicolas Dichtel.

  21) Protect x86 BPF JIT against spraying attacks, from Eric Dumazet.

  22) Prevent a single high rate flow from overruning an individual cpu
      during RX packet processing via selective flow shedding.  From
      Willem de Bruijn.

  23) Don't use spinlocks in TCP md5 signing fast paths, from Eric
      Dumazet.

  24) Don't just drop GSO packets which are above the TBF scheduler's
      burst limit, chop them up so they are in-bounds instead.  Also
      from Eric Dumazet.

  25) VLAN offloads are missed when configured on top of a bridge, fix
      from Vlad Yasevich.

  26) Support IPV6 in ping sockets.  From Lorenzo Colitti.

  27) Receive flow steering targets should be updated at poll() time
      too, from David Majnemer.

  28) Fix several corner case regressions in PMTU/redirect handling due
      to the routing cache removal, from Timo Teräs.

  29) We have to be mindful of ipv4 mapped ipv6 sockets in
      upd_v6_push_pending_frames().  From Hannes Frederic Sowa.

  30) Fix L2TP sequence number handling bugs, from James Chapman."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1214 commits)
  drivers/net: caif: fix wrong rtnl_is_locked() usage
  drivers/net: enic: release rtnl_lock on error-path
  vhost-net: fix use-after-free in vhost_net_flush
  net: mv643xx_eth: do not use port number as platform device id
  net: sctp: confirm route during forward progress
  virtio_net: fix race in RX VQ processing
  virtio: support unlocked queue poll
  net/cadence/macb: fix bug/typo in extracting gem_irq_read_clear bit
  Documentation: Fix references to defunct linux-net@vger.kernel.org
  net/fs: change busy poll time accounting
  net: rename low latency sockets functions to busy poll
  bridge: fix some kernel warning in multicast timer
  sfc: Fix memory leak when discarding scattered packets
  sit: fix tunnel update via netlink
  dt:net:stmmac: Add dt specific phy reset callback support.
  dt:net:stmmac: Add support to dwmac version 3.610 and 3.710
  dt:net:stmmac: Allocate platform data only if its NULL.
  net:stmmac: fix memleak in the open method
  ipv6: rt6_check_neigh should successfully verify neigh if no NUD information are available
  net: ipv6: fix wrong ping_v6_sendmsg return value
  ...

16 files changed, 127 insertions, 8 deletions

diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 0c9b44871df0..38dbafaa5341 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -993,8 +993,8 @@ enum ethtool_sfeatures_retval_bits {
 #define PORT_OTHER              0xff
 
 /* Which transceiver to use. */
-#define XCVR_INTERNAL           0x00
-#define XCVR_EXTERNAL           0x01
+#define XCVR_INTERNAL           0x00 /* PHY and MAC are in the same package */
+#define XCVR_EXTERNAL           0x01 /* PHY and MAC are in different packages */
 #define XCVR_DUMMY1             0x02
 #define XCVR_DUMMY2             0x03
 #define XCVR_DUMMY3             0x04
diff --git a/include/uapi/linux/gen_stats.h b/include/uapi/linux/gen_stats.h
index 552c8a0a12d1..6487317ea619 100644
--- a/include/uapi/linux/gen_stats.h
+++ b/include/uapi/linux/gen_stats.h
@@ -9,6 +9,7 @@ enum {
         TCA_STATS_RATE_EST,
         TCA_STATS_QUEUE,
         TCA_STATS_APP,
+        TCA_STATS_RATE_EST64,
         __TCA_STATS_MAX,
 };
 #define TCA_STATS_MAX (__TCA_STATS_MAX - 1)
@@ -38,6 +39,16 @@ struct gnet_stats_rate_est {
 };
 
 /**
+ * struct gnet_stats_rate_est64 - rate estimator
+ * @bps: current byte rate
+ * @pps: current packet rate
+ */
+struct gnet_stats_rate_est64 {
+        __u64   bps;
+        __u64   pps;
+};
+
+/**
  * struct gnet_stats_queue - queuing statistics
  * @qlen: queue length
  * @backlog: backlog size of queue
diff --git a/include/uapi/linux/if_arp.h b/include/uapi/linux/if_arp.h
index 82c7d1bdadeb..d7fea3496f32 100644
--- a/include/uapi/linux/if_arp.h
+++ b/include/uapi/linux/if_arp.h
@@ -93,6 +93,7 @@
 #define ARPHRD_PHONET_PIPE 821          /* PhoNet pipe header           */
 #define ARPHRD_CAIF     822             /* CAIF media type              */
 #define ARPHRD_IP6GRE   823             /* GRE over IPv6                */
+#define ARPHRD_NETLINK  824             /* Netlink header               */
 
 #define ARPHRD_VOID       0xFFFF        /* Void type, nothing is known */
 #define ARPHRD_NONE       0xFFFE        /* zero header length */
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index b05823cae784..03f6170ab337 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -221,6 +221,8 @@ enum {
         IFLA_BRPORT_GUARD,      /* bpdu guard              */
         IFLA_BRPORT_PROTECT,    /* root port protection    */
         IFLA_BRPORT_FAST_LEAVE, /* multicast fast leave    */
+        IFLA_BRPORT_LEARNING,   /* mac learning */
+        IFLA_BRPORT_UNICAST_FLOOD, /* flood unicast traffic */
         __IFLA_BRPORT_MAX
 };
 #define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)
@@ -336,6 +338,7 @@ enum {
         IFLA_VF_VLAN,
         IFLA_VF_TX_RATE,        /* TX Bandwidth Allocation */
         IFLA_VF_SPOOFCHK,       /* Spoof Checking on/off switch */
+        IFLA_VF_LINK_STATE,     /* link state enable/disable/auto switch */
         __IFLA_VF_MAX,
 };
 
@@ -362,6 +365,18 @@ struct ifla_vf_spoofchk {
         __u32 setting;
 };
 
+enum {
+        IFLA_VF_LINK_STATE_AUTO,        /* link state of the uplink */
+        IFLA_VF_LINK_STATE_ENABLE,      /* link always up */
+        IFLA_VF_LINK_STATE_DISABLE,     /* link always down */
+        __IFLA_VF_LINK_STATE_MAX,
+};
+
+struct ifla_vf_link_state {
+        __u32 vf;
+        __u32 link_state;
+};
+
 /* VF ports management section
  *
  *      Nested layout of set/get msg is:
diff --git a/include/uapi/linux/if_pppox.h b/include/uapi/linux/if_pppox.h
index 0b46fd57c8f6..e36a4aecd311 100644
--- a/include/uapi/linux/if_pppox.h
+++ b/include/uapi/linux/if_pppox.h
@@ -135,11 +135,11 @@ struct pppoe_tag {
 
 struct pppoe_hdr {
 #if defined(__LITTLE_ENDIAN_BITFIELD)
-        __u8 ver : 4;
         __u8 type : 4;
+        __u8 ver : 4;
 #elif defined(__BIG_ENDIAN_BITFIELD)
-        __u8 type : 4;
         __u8 ver : 4;
+        __u8 type : 4;
 #else
 #error  "Please fix <asm/byteorder.h>"
 #endif
diff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h
index 2835b85fd46d..82334f88967e 100644
--- a/include/uapi/linux/if_tun.h
+++ b/include/uapi/linux/if_tun.h
@@ -68,6 +68,8 @@
 #define IFF_MULTI_QUEUE 0x0100
 #define IFF_ATTACH_QUEUE 0x0200
 #define IFF_DETACH_QUEUE 0x0400
+/* read-only flag */
+#define IFF_PERSIST     0x0800
 
 /* Features for GSO (TUNSETOFFLOAD). */
 #define TUN_F_CSUM      0x01    /* You can hand me unchecksummed packets. */
diff --git a/include/uapi/linux/ip_vs.h b/include/uapi/linux/ip_vs.h
index a24537725e80..29458223d044 100644
--- a/include/uapi/linux/ip_vs.h
+++ b/include/uapi/linux/ip_vs.h
@@ -20,6 +20,12 @@
 #define IP_VS_SVC_F_PERSISTENT  0x0001          /* persistent port */
 #define IP_VS_SVC_F_HASHED      0x0002          /* hashed entry */
 #define IP_VS_SVC_F_ONEPACKET   0x0004          /* one-packet scheduling */