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

Pull networking updates from David Miller:

 1) The addition of nftables.  No longer will we need protocol aware
    firewall filtering modules, it can all live in userspace.

    At the core of nftables is a, for lack of a better term, virtual
    machine that executes byte codes to inspect packet or metadata
    (arriving interface index, etc.) and make verdict decisions.

    Besides support for loading packet contents and comparing them, the
    interpreter supports lookups in various datastructures as
    fundamental operations.  For example sets are supports, and
    therefore one could create a set of whitelist IP address entries
    which have ACCEPT verdicts attached to them, and use the appropriate
    byte codes to do such lookups.

    Since the interpreted code is composed in userspace, userspace can
    do things like optimize things before giving it to the kernel.

    Another major improvement is the capability of atomically updating
    portions of the ruleset.  In the existing netfilter implementation,
    one has to update the entire rule set in order to make a change and
    this is very expensive.

    Userspace tools exist to create nftables rules using existing
    netfilter rule sets, but both kernel implementations will need to
    co-exist for quite some time as we transition from the old to the
    new stuff.

    Kudos to Patrick McHardy, Pablo Neira Ayuso, and others who have
    worked so hard on this.

 2) Daniel Borkmann and Hannes Frederic Sowa made several improvements
    to our pseudo-random number generator, mostly used for things like
    UDP port randomization and netfitler, amongst other things.

    In particular the taus88 generater is updated to taus113, and test
    cases are added.

 3) Support 64-bit rates in HTB and TBF schedulers, from Eric Dumazet
    and Yang Yingliang.

 4) Add support for new 577xx tigon3 chips to tg3 driver, from Nithin
    Sujir.

 5) Fix two fatal flaws in TCP dynamic right sizing, from Eric Dumazet,
    Neal Cardwell, and Yuchung Cheng.

 6) Allow IP_TOS and IP_TTL to be specified in sendmsg() ancillary
    control message data, much like other socket option attributes.
    From Francesco Fusco.

 7) Allow applications to specify a cap on the rate computed
    automatically by the kernel for pacing flows, via a new
    SO_MAX_PACING_RATE socket option.  From Eric Dumazet.

 8) Make the initial autotuned send buffer sizing in TCP more closely
    reflect actual needs, from Eric Dumazet.

 9) Currently early socket demux only happens for TCP sockets, but we
    can do it for connected UDP sockets too.  Implementation from Shawn
    Bohrer.

10) Refactor inet socket demux with the goal of improving hash demux
    performance for listening sockets.  With the main goals being able
    to use RCU lookups on even request sockets, and eliminating the
    listening lock contention.  From Eric Dumazet.

11) The bonding layer has many demuxes in it's fast path, and an RCU
    conversion was started back in 3.11, several changes here extend the
    RCU usage to even more locations.  From Ding Tianhong and Wang
    Yufen, based upon suggestions by Nikolay Aleksandrov and Veaceslav
    Falico.

12) Allow stackability of segmentation offloads to, in particular, allow
    segmentation offloading over tunnels.  From Eric Dumazet.

13) Significantly improve the handling of secret keys we input into the
    various hash functions in the inet hashtables, TCP fast open, as
    well as syncookies.  From Hannes Frederic Sowa.  The key fundamental
    operation is "net_get_random_once()" which uses static keys.

    Hannes even extended this to ipv4/ipv6 fragmentation handling and
    our generic flow dissector.

14) The generic driver layer takes care now to set the driver data to
    NULL on device removal, so it's no longer necessary for drivers to
    explicitly set it to NULL any more.  Many drivers have been cleaned
    up in this way, from Jingoo Han.

15) Add a BPF based packet scheduler classifier, from Daniel Borkmann.

16) Improve CRC32 interfaces and generic SKB checksum iterators so that
    SCTP's checksumming can more cleanly be handled.  Also from Daniel
    Borkmann.

17) Add a new PMTU discovery mode, IP_PMTUDISC_INTERFACE, which forces
    using the interface MTU value.  This helps avoid PMTU attacks,
    particularly on DNS servers.  From Hannes Frederic Sowa.

18) Use generic XPS for transmit queue steering rather than internal
    (re-)implementation in virtio-net.  From Jason Wang.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1622 commits)
  random32: add test cases for taus113 implementation
  random32: upgrade taus88 generator to taus113 from errata paper
  random32: move rnd_state to linux/random.h
  random32: add prandom_reseed_late() and call when nonblocking pool becomes initialized
  random32: add periodic reseeding
  random32: fix off-by-one in seeding requirement
  PHY: Add RTL8201CP phy_driver to realtek
  xtsonic: add missing platform_set_drvdata() in xtsonic_probe()
  macmace: add missing platform_set_drvdata() in mace_probe()
  ethernet/arc/arc_emac: add missing platform_set_drvdata() in arc_emac_probe()
  ipv6: protect for_each_sk_fl_rcu in mem_check with rcu_read_lock_bh
  vlan: Implement vlan_dev_get_egress_qos_mask as an inline.
  ixgbe: add warning when max_vfs is out of range.
  igb: Update link modes display in ethtool
  netfilter: push reasm skb through instead of original frag skbs
  ip6_output: fragment outgoing reassembled skb properly
  MAINTAINERS: mv643xx_eth: take over maintainership from Lennart
  net_sched: tbf: support of 64bit rates
  ixgbe: deleting dfwd stations out of order can cause null ptr deref
  ixgbe: fix build err, num_rx_queues is only available with CONFIG_RPS
  ...

1 files changed, 51 insertions, 54 deletions

diff --git a/drivers/net/ethernet/sfc/efx.h b/drivers/net/ethernet/sfc/efx.h
index 34d00f5771fe..b8235ee5d7d7 100644
--- a/drivers/net/ethernet/sfc/efx.h
+++ b/drivers/net/ethernet/sfc/efx.h
@@ -18,37 +18,36 @@
 #define EFX_MEM_BAR 2
 
 /* TX */
-extern int efx_probe_tx_queue(struct efx_tx_queue *tx_queue);
-extern void efx_remove_tx_queue(struct efx_tx_queue *tx_queue);
-extern void efx_init_tx_queue(struct efx_tx_queue *tx_queue);
-extern void efx_init_tx_queue_core_txq(struct efx_tx_queue *tx_queue);
-extern void efx_fini_tx_queue(struct efx_tx_queue *tx_queue);
-extern netdev_tx_t
-efx_hard_start_xmit(struct sk_buff *skb, struct net_device *net_dev);
-extern netdev_tx_t
-efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb);
-extern void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
-extern int efx_setup_tc(struct net_device *net_dev, u8 num_tc);
-extern unsigned int efx_tx_max_skb_descs(struct efx_nic *efx);
+int efx_probe_tx_queue(struct efx_tx_queue *tx_queue);
+void efx_remove_tx_queue(struct efx_tx_queue *tx_queue);
+void efx_init_tx_queue(struct efx_tx_queue *tx_queue);
+void efx_init_tx_queue_core_txq(struct efx_tx_queue *tx_queue);
+void efx_fini_tx_queue(struct efx_tx_queue *tx_queue);
+netdev_tx_t efx_hard_start_xmit(struct sk_buff *skb,
+				struct net_device *net_dev);
+netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb);
+void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
+int efx_setup_tc(struct net_device *net_dev, u8 num_tc);
+unsigned int efx_tx_max_skb_descs(struct efx_nic *efx);
+extern unsigned int efx_piobuf_size;
 
 /* RX */
-extern void efx_rx_config_page_split(struct efx_nic *efx);
-extern int efx_probe_rx_queue(struct efx_rx_queue *rx_queue);
-extern void efx_remove_rx_queue(struct efx_rx_queue *rx_queue);
-extern void efx_init_rx_queue(struct efx_rx_queue *rx_queue);
-extern void efx_fini_rx_queue(struct efx_rx_queue *rx_queue);
-extern void efx_fast_push_rx_descriptors(struct efx_rx_queue *rx_queue);
-extern void efx_rx_slow_fill(unsigned long context);
-extern void __efx_rx_packet(struct efx_channel *channel);
-extern void efx_rx_packet(struct efx_rx_queue *rx_queue,
-			  unsigned int index, unsigned int n_frags,
-			  unsigned int len, u16 flags);
+void efx_rx_config_page_split(struct efx_nic *efx);
+int efx_probe_rx_queue(struct efx_rx_queue *rx_queue);
+void efx_remove_rx_queue(struct efx_rx_queue *rx_queue);
+void efx_init_rx_queue(struct efx_rx_queue *rx_queue);
+void efx_fini_rx_queue(struct efx_rx_queue *rx_queue);
+void efx_fast_push_rx_descriptors(struct efx_rx_queue *rx_queue);
+void efx_rx_slow_fill(unsigned long context);
+void __efx_rx_packet(struct efx_channel *channel);
+void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index,
+		   unsigned int n_frags, unsigned int len, u16 flags);
 static inline void efx_rx_flush_packet(struct efx_channel *channel)
 {
 	if (channel->rx_pkt_n_frags)
 		__efx_rx_packet(channel);
 }
-extern void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue);
+void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue);
 
 #define EFX_MAX_DMAQ_SIZE 4096UL
 #define EFX_DEFAULT_DMAQ_SIZE 1024UL
@@ -162,9 +161,9 @@ static inline s32 efx_filter_get_rx_ids(struct efx_nic *efx,
 	return efx->type->filter_get_rx_ids(efx, priority, buf, size);
 }
 #ifdef CONFIG_RFS_ACCEL
-extern int efx_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
-			  u16 rxq_index, u32 flow_id);
-extern bool __efx_filter_rfs_expire(struct efx_nic *efx, unsigned quota);
+int efx_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
+		   u16 rxq_index, u32 flow_id);
+bool __efx_filter_rfs_expire(struct efx_nic *efx, unsigned quota);
 static inline void efx_filter_rfs_expire(struct efx_channel *channel)
 {
 	if (channel->rfs_filters_added >= 60 &&
@@ -176,50 +175,48 @@ static inline void efx_filter_rfs_expire(struct efx_channel *channel)
 static inline void efx_filter_rfs_expire(struct efx_channel *channel) {}
 #define efx_filter_rfs_enabled() 0
 #endif
-extern bool efx_filter_is_mc_recipient(const struct efx_filter_spec *spec);
+bool efx_filter_is_mc_recipient(const struct efx_filter_spec *spec);
 
 /* Channels */
-extern int efx_channel_dummy_op_int(struct efx_channel *channel);
-extern void efx_channel_dummy_op_void(struct efx_channel *channel);
-extern int
-efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries);
+int efx_channel_dummy_op_int(struct efx_channel *channel);
+void efx_channel_dummy_op_void(struct efx_channel *channel);
+int efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries);
 
 /* Ports */
-extern int efx_reconfigure_port(struct efx_nic *efx);
-extern int __efx_reconfigure_port(struct efx_nic *efx);
+int efx_reconfigure_port(struct efx_nic *efx);
+int __efx_reconfigure_port(struct efx_nic *efx);
 
 /* Ethtool support */
 extern const struct ethtool_ops efx_ethtool_ops;
 
 /* Reset handling */
-extern int efx_reset(struct efx_nic *efx, enum reset_type method);
-extern void efx_reset_down(struct efx_nic *efx, enum reset_type method);
-extern int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok);
-extern int efx_try_recovery(struct efx_nic *efx);
+int efx_reset(struct efx_nic *efx, enum reset_type method);
+void efx_reset_down(struct efx_nic *efx, enum reset_type method);
+int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok);
+int efx_try_recovery(struct efx_nic *efx);
 
 /* Global */
-extern void efx_schedule_reset(struct efx_nic *efx, enum reset_type type);
-extern int efx_init_irq_moderation(struct efx_nic *efx, unsigned int tx_usecs,
-				   unsigned int rx_usecs, bool rx_adaptive,
-				   bool rx_may_override_tx);
-extern void efx_get_irq_moderation(struct efx_nic *efx, unsigned int *tx_usecs,
-				   unsigned int *rx_usecs, bool *rx_adaptive);
+void efx_schedule_reset(struct efx_nic *efx, enum reset_type type);
+int efx_init_irq_moderation(struct efx_nic *efx, unsigned int tx_usecs,
+			    unsigned int rx_usecs, bool rx_adaptive,
+			    bool rx_may_override_tx);
+void efx_get_irq_moderation(struct efx_nic *efx, unsigned int *tx_usecs,
+			    unsigned int *rx_usecs, bool *rx_adaptive);
 
 /* Dummy PHY ops for PHY drivers */
-extern int efx_port_dummy_op_int(struct efx_nic *efx);
-extern void efx_port_dummy_op_void(struct efx_nic *efx);
-
+int efx_port_dummy_op_int(struct efx_nic *efx);
+void efx_port_dummy_op_void(struct efx_nic *efx);
 
 /* MTD */
 #ifdef CONFIG_SFC_MTD
-extern int efx_mtd_add(struct efx_nic *efx, struct efx_mtd_partition *parts,
-		       size_t n_parts, size_t sizeof_part);
+int efx_mtd_add(struct efx_nic *efx, struct efx_mtd_partition *parts,
+		size_t n_parts, size_t sizeof_part);
 static inline int efx_mtd_probe(struct efx_nic *efx)
 {
 	return efx->type->mtd_probe(efx);
 }
-extern void efx_mtd_rename(struct efx_nic *efx);
-extern void efx_mtd_remove(struct efx_nic *efx);
+void efx_mtd_rename(struct efx_nic *efx);
+void efx_mtd_remove(struct efx_nic *efx);
 #else
 static inline int efx_mtd_probe(struct efx_nic *efx) { return 0; }
 static inline void efx_mtd_rename(struct efx_nic *efx) {}
@@ -241,9 +238,9 @@ static inline void efx_schedule_channel_irq(struct efx_channel *channel)
 	efx_schedule_channel(channel);
 }
 
-extern void efx_link_status_changed(struct efx_nic *efx);
-extern void efx_link_set_advertising(struct efx_nic *efx, u32);
-extern void efx_link_set_wanted_fc(struct efx_nic *efx, u8);
+void efx_link_status_changed(struct efx_nic *efx);
+void efx_link_set_advertising(struct efx_nic *efx, u32);
+void efx_link_set_wanted_fc(struct efx_nic *efx, u8);
 
 static inline void efx_device_detach_sync(struct efx_nic *efx)
 {