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

Pull networking updates from David Miller:
 "Highlights:

   1) Support more Realtek wireless chips, from Jes Sorenson.

   2) New BPF types for per-cpu hash and arrap maps, from Alexei
      Starovoitov.

   3) Make several TCP sysctls per-namespace, from Nikolay Borisov.

   4) Allow the use of SO_REUSEPORT in order to do per-thread processing
   of incoming TCP/UDP connections.  The muxing can be done using a
   BPF program which hashes the incoming packet.  From Craig Gallek.

   5) Add a multiplexer for TCP streams, to provide a messaged based
      interface.  BPF programs can be used to determine the message
      boundaries.  From Tom Herbert.

   6) Add 802.1AE MACSEC support, from Sabrina Dubroca.

   7) Avoid factorial complexity when taking down an inetdev interface
      with lots of configured addresses.  We were doing things like
      traversing the entire address less for each address removed, and
      flushing the entire netfilter conntrack table for every address as
      well.

   8) Add and use SKB bulk free infrastructure, from Jesper Brouer.

   9) Allow offloading u32 classifiers to hardware, and implement for
      ixgbe, from John Fastabend.

  10) Allow configuring IRQ coalescing parameters on a per-queue basis,
      from Kan Liang.

  11) Extend ethtool so that larger link mode masks can be supported.
      From David Decotigny.

  12) Introduce devlink, which can be used to configure port link types
      (ethernet vs Infiniband, etc.), port splitting, and switch device
      level attributes as a whole.  From Jiri Pirko.

  13) Hardware offload support for flower classifiers, from Amir Vadai.

  14) Add "Local Checksum Offload".  Basically, for a tunneled packet
      the checksum of the outer header is 'constant' (because with the
      checksum field filled into the inner protocol header, the payload
      of the outer frame checksums to 'zero'), and we can take advantage
      of that in various ways.  From Edward Cree"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1548 commits)
  bonding: fix bond_get_stats()
  net: bcmgenet: fix dma api length mismatch
  net/mlx4_core: Fix backward compatibility on VFs
  phy: mdio-thunder: Fix some Kconfig typos
  lan78xx: add ndo_get_stats64
  lan78xx: handle statistics counter rollover
  RDS: TCP: Remove unused constant
  RDS: TCP: Add sysctl tunables for sndbuf/rcvbuf on rds-tcp socket
  net: smc911x: convert pxa dma to dmaengine
  team: remove duplicate set of flag IFF_MULTICAST
  bonding: remove duplicate set of flag IFF_MULTICAST
  net: fix a comment typo
  ethernet: micrel: fix some error codes
  ip_tunnels, bpf: define IP_TUNNEL_OPTS_MAX and use it
  bpf, dst: add and use dst_tclassid helper
  bpf: make skb->tc_classid also readable
  net: mvneta: bm: clarify dependencies
  cls_bpf: reset class and reuse major in da
  ldmvsw: Checkpatch sunvnet.c and sunvnet_common.c
  ldmvsw: Add ldmvsw.c driver code
  ...

1 files changed, 89 insertions, 27 deletions

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 58f58bd5202f..7390de4946a9 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -4,7 +4,7 @@
  * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
  * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
- * Copyright (C) 2015	Intel Deutschland GmbH
+ * Copyright (C) 2015-2016	Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -1928,6 +1928,9 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 			  BSS_CHANGED_IDLE |
 			  BSS_CHANGED_TXPOWER;
 
+		if (sdata->vif.mu_mimo_owner)
+			changed |= BSS_CHANGED_MU_GROUPS;
+
 		switch (sdata->vif.type) {
 		case NL80211_IFTYPE_STATION:
 			changed |= BSS_CHANGED_ASSOC |
@@ -2371,10 +2374,23 @@ u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
 
 	switch (chandef->width) {
 	case NL80211_CHAN_WIDTH_160:
-		vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_160MHZ;
+		/*
+		 * Convert 160 MHz channel width to new style as interop
+		 * workaround.
+		 */
+		vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
+		vht_oper->center_freq_seg2_idx = vht_oper->center_freq_seg1_idx;
+		if (chandef->chan->center_freq < chandef->center_freq1)
+			vht_oper->center_freq_seg1_idx -= 8;
+		else
+			vht_oper->center_freq_seg1_idx += 8;
 		break;
 	case NL80211_CHAN_WIDTH_80P80:
-		vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80P80MHZ;
+		/*
+		 * Convert 80+80 MHz channel width to new style as interop
+		 * workaround.
+		 */
+		vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
 		break;
 	case NL80211_CHAN_WIDTH_80:
 		vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
@@ -2390,17 +2406,13 @@ u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
 	return pos + sizeof(struct ieee80211_vht_operation);
 }
 
-void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
-				  const struct ieee80211_ht_operation *ht_oper,
-				  struct cfg80211_chan_def *chandef)
+bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
+			       struct cfg80211_chan_def *chandef)
 {
 	enum nl80211_channel_type channel_type;
 
-	if (!ht_oper) {
-		cfg80211_chandef_create(chandef, control_chan,
-					NL80211_CHAN_NO_HT);
-		return;
-	}
+	if (!ht_oper)
+		return false;
 
 	switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
 	case IEEE80211_HT_PARAM_CHA_SEC_NONE:
@@ -2414,42 +2426,66 @@ void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
 		break;
 	default:
 		channel_type = NL80211_CHAN_NO_HT;
+		return false;
 	}
 
-	cfg80211_chandef_create(chandef, control_chan, channel_type);
+	cfg80211_chandef_create(chandef, chandef->chan, channel_type);
+	return true;
 }
 
-void ieee80211_vht_oper_to_chandef(struct ieee80211_channel *control_chan,
-				   const struct ieee80211_vht_operation *oper,
-				   struct cfg80211_chan_def *chandef)
+bool ieee80211_chandef_vht_oper(const struct ieee80211_vht_operation *oper,
+				struct cfg80211_chan_def *chandef)
 {
+	struct cfg80211_chan_def new = *chandef;
+	int cf1, cf2;
+
 	if (!oper)
-		return;
+		return false;
 
-	chandef->chan = control_chan;
+	cf1 = ieee80211_channel_to_frequency(oper->center_freq_seg1_idx,
+					     chandef->chan->band);
+	cf2 = ieee80211_channel_to_frequency(oper->center_freq_seg2_idx,
+					     chandef->chan->band);
 
 	switch (oper->chan_width) {
 	case IEEE80211_VHT_CHANWIDTH_USE_HT:
 		break;
 	case IEEE80211_VHT_CHANWIDTH_80MHZ:
-		chandef->width = NL80211_CHAN_WIDTH_80;
+		new.width = NL80211_CHAN_WIDTH_80;
+		new.center_freq1 = cf1;
+		/* If needed, adjust based on the newer interop workaround. */
+		if (oper->center_freq_seg2_idx) {
+			unsigned int diff;
+
+			diff = abs(oper->center_freq_seg2_idx -
+				   oper->center_freq_seg1_idx);
+			if (diff == 8) {
+				new.width = NL80211_CHAN_WIDTH_160;
+				new.center_freq1 = cf2;
+			} else if (diff > 8) {
+				new.width = NL80211_CHAN_WIDTH_80P80;
+				new.center_freq2 = cf2;
+			}
+		}
 		break;
 	case IEEE80211_VHT_CHANWIDTH_160MHZ:
-		chandef->width = NL80211_CHAN_WIDTH_160;
+		new.width = NL80211_CHAN_WIDTH_160;
+		new.center_freq1 = cf1;
 		break;
 	case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
-		chandef->width = NL80211_CHAN_WIDTH_80P80;
+		new.width = NL80211_CHAN_WIDTH_80P80;
+		new.center_freq1 = cf1;
+		new.center_freq2 = cf2;
 		break;
 	default:
-		break;
+		return false;
 	}
 
-	chandef->center_freq1 =
-		ieee80211_channel_to_frequency(oper->center_freq_seg1_idx,
-					       control_chan->band);
-	chandef->center_freq2 =
-		ieee80211_channel_to_frequency(oper->center_freq_seg2_idx,
-					       control_chan->band);
+	if (!cfg80211_chandef_valid(&new))
+		return false;
+
+	*chandef = new;
+	return true;
 }
 
 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
@@ -2672,6 +2708,18 @@ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
 		sband = local->hw.wiphy->bands[status->band];
 		bitrate = sband->bitrates[status->rate_idx].bitrate;
 		ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift));
+
+		if (status->flag & RX_FLAG_MACTIME_PLCP_START) {
+			/* TODO: handle HT/VHT preambles */
+			if (status->band == IEEE80211_BAND_5GHZ) {
+				ts += 20 << shift;
+				mpdu_offset += 2;
+			} else if (status->flag & RX_FLAG_SHORTPRE) {
+				ts += 96;
+			} else {
+				ts += 192;
+			}
+		}
 	}
 
 	rate = cfg80211_calculate_bitrate(&ri);
@@ -3357,3 +3405,17 @@ void ieee80211_init_tx_queue(struct ieee80211_sub_if_data *sdata,
 		txqi->txq.ac = IEEE80211_AC_BE;
 	}
 }
+
+void ieee80211_txq_get_depth(struct ieee80211_txq *txq,
+			     unsigned long *frame_cnt,
+			     unsigned long *byte_cnt)
+{
+	struct txq_info *txqi = to_txq_info(txq);
+
+	if (frame_cnt)
+		*frame_cnt = txqi->queue.qlen;
+
+	if (byte_cnt)
+		*byte_cnt = txqi->byte_cnt;
+}
+EXPORT_SYMBOL(ieee80211_txq_get_depth);