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

Pull networking updates from David Miller:
 "Highlights:

   1) Support TX_RING in AF_PACKET TPACKET_V3 mode, from Sowmini
      Varadhan.

   2) Simplify classifier state on sk_buff in order to shrink it a bit.
      From Willem de Bruijn.

   3) Introduce SIPHASH and it's usage for secure sequence numbers and
      syncookies. From Jason A. Donenfeld.

   4) Reduce CPU usage for ICMP replies we are going to limit or
      suppress, from Jesper Dangaard Brouer.

   5) Introduce Shared Memory Communications socket layer, from Ursula
      Braun.

   6) Add RACK loss detection and allow it to actually trigger fast
      recovery instead of just assisting after other algorithms have
      triggered it. From Yuchung Cheng.

   7) Add xmit_more and BQL support to mvneta driver, from Simon Guinot.

   8) skb_cow_data avoidance in esp4 and esp6, from Steffen Klassert.

   9) Export MPLS packet stats via netlink, from Robert Shearman.

  10) Significantly improve inet port bind conflict handling, especially
      when an application is restarted and changes it's setting of
      reuseport. From Josef Bacik.

  11) Implement TX batching in vhost_net, from Jason Wang.

  12) Extend the dummy device so that VF (virtual function) features,
      such as configuration, can be more easily tested. From Phil
      Sutter.

  13) Avoid two atomic ops per page on x86 in bnx2x driver, from Eric
      Dumazet.

  14) Add new bpf MAP, implementing a longest prefix match trie. From
      Daniel Mack.

  15) Packet sample offloading support in mlxsw driver, from Yotam Gigi.

  16) Add new aquantia driver, from David VomLehn.

  17) Add bpf tracepoints, from Daniel Borkmann.

  18) Add support for port mirroring to b53 and bcm_sf2 drivers, from
      Florian Fainelli.

  19) Remove custom busy polling in many drivers, it is done in the core
      networking since 4.5 times. From Eric Dumazet.

  20) Support XDP adjust_head in virtio_net, from John Fastabend.

  21) Fix several major holes in neighbour entry confirmation, from
      Julian Anastasov.

  22) Add XDP support to bnxt_en driver, from Michael Chan.

  23) VXLAN offloads for enic driver, from Govindarajulu Varadarajan.

  24) Add IPVTAP driver (IP-VLAN based tap driver) from Sainath Grandhi.

  25) Support GRO in IPSEC protocols, from Steffen Klassert"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1764 commits)
  Revert "ath10k: Search SMBIOS for OEM board file extension"
  net: socket: fix recvmmsg not returning error from sock_error
  bnxt_en: use eth_hw_addr_random()
  bpf: fix unlocking of jited image when module ronx not set
  arch: add ARCH_HAS_SET_MEMORY config
  net: napi_watchdog() can use napi_schedule_irqoff()
  tcp: Revert "tcp: tcp_probe: use spin_lock_bh()"
  net/hsr: use eth_hw_addr_random()
  net: mvpp2: enable building on 64-bit platforms
  net: mvpp2: switch to build_skb() in the RX path
  net: mvpp2: simplify MVPP2_PRS_RI_* definitions
  net: mvpp2: fix indentation of MVPP2_EXT_GLOBAL_CTRL_DEFAULT
  net: mvpp2: remove unused register definitions
  net: mvpp2: simplify mvpp2_bm_bufs_add()
  net: mvpp2: drop useless fields in mvpp2_bm_pool and related code
  net: mvpp2: remove unused 'tx_skb' field of 'struct mvpp2_tx_queue'
  net: mvpp2: release reference to txq_cpu[] entry after unmapping
  net: mvpp2: handle too large value in mvpp2_rx_time_coal_set()
  net: mvpp2: handle too large value handling in mvpp2_rx_pkts_coal_set()
  net: mvpp2: remove useless arguments in mvpp2_rx_{pkts, time}_coal_set
  ...

1 files changed, 59 insertions, 52 deletions

diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 92daabdc007d..a244db5e5ff7 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -82,7 +82,6 @@ struct sctp_outq;
 struct sctp_bind_addr;
 struct sctp_ulpq;
 struct sctp_ep_common;
-struct sctp_ssnmap;
 struct crypto_shash;
 
 
@@ -375,56 +374,24 @@ typedef struct sctp_sender_hb_info {
 	union sctp_addr daddr;
 	unsigned long sent_at;
 	__u64 hb_nonce;
-} __packed sctp_sender_hb_info_t;
+} sctp_sender_hb_info_t;
 
-/*
- *  RFC 2960 1.3.2 Sequenced Delivery within Streams
- *
- *  The term "stream" is used in SCTP to refer to a sequence of user
- *  messages that are to be delivered to the upper-layer protocol in
- *  order with respect to other messages within the same stream.  This is
- *  in contrast to its usage in TCP, where it refers to a sequence of
- *  bytes (in this document a byte is assumed to be eight bits).
- *  ...
- *
- *  This is the structure we use to track both our outbound and inbound
- *  SSN, or Stream Sequence Numbers.
- */
-
-struct sctp_stream {
-	__u16 *ssn;
-	unsigned int len;
-};
-
-struct sctp_ssnmap {
-	struct sctp_stream in;
-	struct sctp_stream out;
-};
-
-struct sctp_ssnmap *sctp_ssnmap_new(__u16 in, __u16 out,
-				    gfp_t gfp);
-void sctp_ssnmap_free(struct sctp_ssnmap *map);
-void sctp_ssnmap_clear(struct sctp_ssnmap *map);
+struct sctp_stream *sctp_stream_new(__u16 incnt, __u16 outcnt, gfp_t gfp);
+void sctp_stream_free(struct sctp_stream *stream);
+void sctp_stream_clear(struct sctp_stream *stream);
 
 /* What is the current SSN number for this stream? */
-static inline __u16 sctp_ssn_peek(struct sctp_stream *stream, __u16 id)
-{
-	return stream->ssn[id];
-}
+#define sctp_ssn_peek(stream, type, sid) \
+	((stream)->type[sid].ssn)
 
 /* Return the next SSN number for this stream.	*/
-static inline __u16 sctp_ssn_next(struct sctp_stream *stream, __u16 id)
-{
-	return stream->ssn[id]++;
-}
+#define sctp_ssn_next(stream, type, sid) \
+	((stream)->type[sid].ssn++)
 
 /* Skip over this ssn and all below. */
-static inline void sctp_ssn_skip(struct sctp_stream *stream, __u16 id, 
-				 __u16 ssn)
-{
-	stream->ssn[id] = ssn+1;
-}
-              
+#define sctp_ssn_skip(stream, type, sid, ssn) \
+	((stream)->type[sid].ssn = ssn + 1)
+
 /*
  * Pointers to address related SCTP functions.
  * (i.e. things that depend on the address family.)
@@ -530,6 +497,7 @@ struct sctp_datamsg {
 	/* Did the messenge fail to send? */
 	int send_error;
 	u8 send_failed:1,
+	   force_delay:1,
 	   can_delay;	    /* should this message be Nagle delayed */
 };
 
@@ -722,10 +690,9 @@ struct sctp_packet {
 	    ipfragok:1;		/* So let ip fragment this packet */
 };
 
-struct sctp_packet *sctp_packet_init(struct sctp_packet *,
-				     struct sctp_transport *,
-				     __u16 sport, __u16 dport);
-struct sctp_packet *sctp_packet_config(struct sctp_packet *, __u32 vtag, int);
+void sctp_packet_init(struct sctp_packet *, struct sctp_transport *,
+		      __u16 sport, __u16 dport);
+void sctp_packet_config(struct sctp_packet *, __u32 vtag, int);
 sctp_xmit_t sctp_packet_transmit_chunk(struct sctp_packet *,
 				       struct sctp_chunk *, int, gfp_t);
 sctp_xmit_t sctp_packet_append_chunk(struct sctp_packet *,
@@ -838,6 +805,8 @@ struct sctp_transport {
 
 	__u32 burst_limited;	/* Holds old cwnd when max.burst is applied */
 
+	__u32 dst_pending_confirm;	/* need to confirm neighbour */
+
 	/* Destination */
 	struct dst_entry *dst;
 	/* Source address. */
@@ -911,6 +880,9 @@ struct sctp_transport {
 	/* Timer to handle ICMP proto unreachable envets */
 	struct timer_list proto_unreach_timer;
 
+	/* Timer to handler reconf chunk rtx */
+	struct timer_list reconf_timer;
+
 	/* Since we're using per-destination retransmission timers
 	 * (see above), we're also using per-destination "transmitted"
 	 * queues.  This probably ought to be a private struct
@@ -969,6 +941,7 @@ void sctp_transport_pmtu(struct sctp_transport *, struct sock *sk);
 void sctp_transport_free(struct sctp_transport *);
 void sctp_transport_reset_t3_rtx(struct sctp_transport *);
 void sctp_transport_reset_hb_timer(struct sctp_transport *);
+void sctp_transport_reset_reconf_timer(struct sctp_transport *transport);
 int sctp_transport_hold(struct sctp_transport *);
 void sctp_transport_put(struct sctp_transport *);
 void sctp_transport_update_rto(struct sctp_transport *, __u32);
@@ -980,6 +953,8 @@ unsigned long sctp_transport_timeout(struct sctp_transport *);
 void sctp_transport_reset(struct sctp_transport *);
 void sctp_transport_update_pmtu(struct sock *, struct sctp_transport *, u32);
 void sctp_transport_immediate_rtx(struct sctp_transport *);
+void sctp_transport_dst_release(struct sctp_transport *t);
+void sctp_transport_dst_confirm(struct sctp_transport *t);
 
 
 /* This is the structure we use to queue packets as they come into
@@ -1285,7 +1260,10 @@ struct sctp_endpoint {
 	struct list_head endpoint_shared_keys;
 	__u16 active_key_id;
 	__u8  auth_enable:1,
-	      prsctp_enable:1;
+	      prsctp_enable:1,
+	      reconf_enable:1;
+
+	__u8  strreset_enable;
 };
 
 /* Recover the outter endpoint structure. */
@@ -1332,6 +1310,25 @@ struct sctp_inithdr_host {
 	__u32 initial_tsn;
 };
 
+struct sctp_stream_out {
+	__u16	ssn;
+	__u8	state;
+};
+
+struct sctp_stream_in {
+	__u16	ssn;
+};
+
+struct sctp_stream {
+	struct sctp_stream_out *out;
+	struct sctp_stream_in *in;
+	__u16 outcnt;
+	__u16 incnt;
+};
+
+#define SCTP_STREAM_CLOSED		0x00
+#define SCTP_STREAM_OPEN		0x01
+
 /* SCTP_GET_ASSOC_STATS counters */
 struct sctp_priv_assoc_stats {
 	/* Maximum observed rto in the association during subsequent
@@ -1519,6 +1516,7 @@ struct sctp_association {
 			hostname_address:1, /* Peer understands DNS addresses? */
 			asconf_capable:1,   /* Does peer support ADDIP? */
 			prsctp_capable:1,   /* Can peer do PR-SCTP? */
+			reconf_capable:1,   /* Can peer do RE-CONFIG? */
 			auth_capable:1;     /* Is peer doing SCTP-AUTH? */
 
 		/* sack_needed : This flag indicates if the next received
@@ -1747,8 +1745,8 @@ struct sctp_association {
 	/* Default receive parameters */
 	__u32 default_rcv_context;
 
-	/* This tracks outbound ssn for a given stream.	 */
-	struct sctp_ssnmap *ssnmap;
+	/* Stream arrays */
+	struct sctp_stream *stream;
 
 	/* All outbound chunks go through this structure.  */
 	struct sctp_outq outqueue;
@@ -1878,7 +1876,16 @@ struct sctp_association {
 
 	__u8 need_ecne:1,	/* Need to send an ECNE Chunk? */
 	     temp:1,		/* Is it a temporary association? */
-	     prsctp_enable:1;
+	     prsctp_enable:1,
+	     reconf_enable:1;
+
+	__u8 strreset_enable;
+	__u8 strreset_outstanding; /* request param count on the fly */
+
+	__u32 strreset_outseq; /* Update after receiving response */
+	__u32 strreset_inseq; /* Update after receiving request */
+
+	struct sctp_chunk *strreset_chunk; /* save request chunk */
 
 	struct sctp_priv_assoc_stats stats;