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

Pull networking updates from David Miller:
 "Highlights:

   1) Support SPI based w5100 devices, from Akinobu Mita.

   2) Partial Segmentation Offload, from Alexander Duyck.

   3) Add GMAC4 support to stmmac driver, from Alexandre TORGUE.

   4) Allow cls_flower stats offload, from Amir Vadai.

   5) Implement bpf blinding, from Daniel Borkmann.

   6) Optimize _ASYNC_ bit twiddling on sockets, unless the socket is
      actually using FASYNC these atomics are superfluous.  From Eric
      Dumazet.

   7) Run TCP more preemptibly, also from Eric Dumazet.

   8) Support LED blinking, EEPROM dumps, and rxvlan offloading in mlx5e
      driver, from Gal Pressman.

   9) Allow creating ppp devices via rtnetlink, from Guillaume Nault.

  10) Improve BPF usage documentation, from Jesper Dangaard Brouer.

  11) Support tunneling offloads in qed, from Manish Chopra.

  12) aRFS offloading in mlx5e, from Maor Gottlieb.

  13) Add RFS and RPS support to SCTP protocol, from Marcelo Ricardo
      Leitner.

  14) Add MSG_EOR support to TCP, this allows controlling packet
      coalescing on application record boundaries for more accurate
      socket timestamp sampling.  From Martin KaFai Lau.

  15) Fix alignment of 64-bit netlink attributes across the board, from
      Nicolas Dichtel.

  16) Per-vlan stats in bridging, from Nikolay Aleksandrov.

  17) Several conversions of drivers to ethtool ksettings, from Philippe
      Reynes.

  18) Checksum neutral ILA in ipv6, from Tom Herbert.

  19) Factorize all of the various marvell dsa drivers into one, from
      Vivien Didelot

  20) Add VF support to qed driver, from Yuval Mintz"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1649 commits)
  Revert "phy dp83867: Fix compilation with CONFIG_OF_MDIO=m"
  Revert "phy dp83867: Make rgmii parameters optional"
  r8169: default to 64-bit DMA on recent PCIe chips
  phy dp83867: Make rgmii parameters optional
  phy dp83867: Fix compilation with CONFIG_OF_MDIO=m
  bpf: arm64: remove callee-save registers use for tmp registers
  asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions
  switchdev: pass pointer to fib_info instead of copy
  net_sched: close another race condition in tcf_mirred_release()
  tipc: fix nametable publication field in nl compat
  drivers: net: Don't print unpopulated net_device name
  qed: add support for dcbx.
  ravb: Add missing free_irq() calls to ravb_close()
  qed: Remove a stray tab
  net: ethernet: fec-mpc52xx: use phy_ethtool_{get|set}_link_ksettings
  net: ethernet: fec-mpc52xx: use phydev from struct net_device
  bpf, doc: fix typo on bpf_asm descriptions
  stmmac: hardware TX COE doesn't work when force_thresh_dma_mode is set
  net: ethernet: fs-enet: use phy_ethtool_{get|set}_link_ksettings
  net: ethernet: fs-enet: use phydev from struct net_device
  ...

1 files changed, 201 insertions, 10 deletions

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 21f6602395f7..203044379ce0 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -150,7 +150,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,
 			rate = DIV_ROUND_UP(r->bitrate, 1 << shift);
 
 		switch (sband->band) {
-		case IEEE80211_BAND_2GHZ: {
+		case NL80211_BAND_2GHZ: {
 			u32 flag;
 			if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
 				flag = IEEE80211_RATE_MANDATORY_G;
@@ -160,13 +160,13 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,
 				mrate = r->bitrate;
 			break;
 		}
-		case IEEE80211_BAND_5GHZ:
+		case NL80211_BAND_5GHZ:
 			if (r->flags & IEEE80211_RATE_MANDATORY_A)
 				mrate = r->bitrate;
 			break;
-		case IEEE80211_BAND_60GHZ:
+		case NL80211_BAND_60GHZ:
 			/* TODO, for now fall through */
-		case IEEE80211_NUM_BANDS:
+		case NUM_NL80211_BANDS:
 			WARN_ON(1);
 			break;
 		}
@@ -1329,6 +1329,10 @@ struct sk_buff *ieee80211_tx_dequeue(struct ieee80211_hw *hw,
 out:
 	spin_unlock_bh(&txqi->queue.lock);
 
+	if (skb && skb_has_frag_list(skb) &&
+	    !ieee80211_hw_check(&local->hw, TX_FRAG_LIST))
+		skb_linearize(skb);
+
 	return skb;
 }
 EXPORT_SYMBOL(ieee80211_tx_dequeue);
@@ -1696,7 +1700,9 @@ static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
 	bool rate_found = false;
 	u8 rate_retries = 0;
 	u16 rate_flags = 0;
-	u8 mcs_known, mcs_flags;
+	u8 mcs_known, mcs_flags, mcs_bw;
+	u16 vht_known;
+	u8 vht_mcs = 0, vht_nss = 0;
 	int i;
 
 	info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT |
@@ -1772,11 +1778,38 @@ static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
 			    mcs_flags & IEEE80211_RADIOTAP_MCS_SGI)
 				rate_flags |= IEEE80211_TX_RC_SHORT_GI;
 
+			mcs_bw = mcs_flags & IEEE80211_RADIOTAP_MCS_BW_MASK;
 			if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_BW &&
-			    mcs_flags & IEEE80211_RADIOTAP_MCS_BW_40)
+			    mcs_bw == IEEE80211_RADIOTAP_MCS_BW_40)
 				rate_flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
 			break;
 
+		case IEEE80211_RADIOTAP_VHT:
+			vht_known = get_unaligned_le16(iterator.this_arg);
+			rate_found = true;
+
+			rate_flags = IEEE80211_TX_RC_VHT_MCS;
+			if ((vht_known & IEEE80211_RADIOTAP_VHT_KNOWN_GI) &&
+			    (iterator.this_arg[2] &
+			     IEEE80211_RADIOTAP_VHT_FLAG_SGI))
+				rate_flags |= IEEE80211_TX_RC_SHORT_GI;
+			if (vht_known &
+			    IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH) {
+				if (iterator.this_arg[3] == 1)
+					rate_flags |=
+						IEEE80211_TX_RC_40_MHZ_WIDTH;
+				else if (iterator.this_arg[3] == 4)
+					rate_flags |=
+						IEEE80211_TX_RC_80_MHZ_WIDTH;
+				else if (iterator.this_arg[3] == 11)
+					rate_flags |=
+						IEEE80211_TX_RC_160_MHZ_WIDTH;
+			}
+
+			vht_mcs = iterator.this_arg[4] >> 4;
+			vht_nss = iterator.this_arg[4] & 0xF;
+			break;
+
 		/*
 		 * Please update the file
 		 * Documentation/networking/mac80211-injection.txt
@@ -1802,6 +1835,9 @@ static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
 
 		if (rate_flags & IEEE80211_TX_RC_MCS) {
 			info->control.rates[0].idx = rate;
+		} else if (rate_flags & IEEE80211_TX_RC_VHT_MCS) {
+			ieee80211_rate_set_vht(info->control.rates, vht_mcs,
+					       vht_nss);
 		} else {
 			for (i = 0; i < sband->n_bitrates; i++) {
 				if (rate * 5 != sband->bitrates[i].bitrate)
@@ -1812,6 +1848,9 @@ static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
 			}
 		}
 
+		if (info->control.rates[0].idx < 0)
+			info->control.flags &= ~IEEE80211_TX_CTRL_RATE_INJECT;
+
 		info->control.rates[0].flags = rate_flags;
 		info->control.rates[0].count = min_t(u8, rate_retries + 1,
 						     local->hw.max_rate_tries);
@@ -2099,7 +2138,7 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
 	u16 info_id = 0;
 	struct ieee80211_chanctx_conf *chanctx_conf;
 	struct ieee80211_sub_if_data *ap_sdata;
-	enum ieee80211_band band;
+	enum nl80211_band band;
 	int ret;
 
 	if (IS_ERR(sta))
@@ -2186,7 +2225,7 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
 			}
 
 			if (mppath && mpath)
-				mesh_path_del(mpath->sdata, mpath->dst);
+				mesh_path_del(sdata, mpath->dst);
 		}
 
 		/*
@@ -2772,6 +2811,154 @@ void ieee80211_clear_fast_xmit(struct sta_info *sta)
 		kfree_rcu(fast_tx, rcu_head);
 }
 
+static bool ieee80211_amsdu_realloc_pad(struct ieee80211_local *local,
+					struct sk_buff *skb, int headroom,
+					int *subframe_len)
+{
+	int amsdu_len = *subframe_len + sizeof(struct ethhdr);
+	int padding = (4 - amsdu_len) & 3;
+
+	if (skb_headroom(skb) < headroom || skb_tailroom(skb) < padding) {
+		I802_DEBUG_INC(local->tx_expand_skb_head);
+
+		if (pskb_expand_head(skb, headroom, padding, GFP_ATOMIC)) {
+			wiphy_debug(local->hw.wiphy,
+				    "failed to reallocate TX buffer\n");
+			return false;
+		}
+	}
+
+	if (padding) {
+		*subframe_len += padding;
+		memset(skb_put(skb, padding), 0, padding);
+	}
+
+	return true;
+}
+
+static bool ieee80211_amsdu_prepare_head(struct ieee80211_sub_if_data *sdata,
+					 struct ieee80211_fast_tx *fast_tx,
+					 struct sk_buff *skb)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_hdr *hdr;
+	struct ethhdr amsdu_hdr;
+	int hdr_len = fast_tx->hdr_len - sizeof(rfc1042_header);
+	int subframe_len = skb->len - hdr_len;
+	void *data;
+	u8 *qc;
+
+	if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE)
+		return false;
+
+	if (info->control.flags & IEEE80211_TX_CTRL_AMSDU)
+		return true;
+
+	if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(amsdu_hdr),
+					 &subframe_len))
+		return false;
+
+	amsdu_hdr.h_proto = cpu_to_be16(subframe_len);
+	memcpy(amsdu_hdr.h_source, skb->data + fast_tx->sa_offs, ETH_ALEN);
+	memcpy(amsdu_hdr.h_dest, skb->data + fast_tx->da_offs, ETH_ALEN);
+
+	data = skb_push(skb, sizeof(amsdu_hdr));
+	memmove(data, data + sizeof(amsdu_hdr), hdr_len);
+	memcpy(data + hdr_len, &amsdu_hdr, sizeof(amsdu_hdr));
+
+	hdr = data;
+	qc = ieee80211_get_qos_ctl(hdr);
+	*qc |= IEEE80211_QOS_CTL_A_MSDU_PRESENT;
+
+	info->control.flags |= IEEE80211_TX_CTRL_AMSDU;
+
+	return true;
+}
+
+static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
+				      struct sta_info *sta,
+				      struct ieee80211_fast_tx *fast_tx,
+				      struct sk_buff *skb)
+{
+	struct ieee80211_local *local = sdata->local;
+	u8 tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
+	struct ieee80211_txq *txq = sta->sta.txq[tid];
+	struct txq_info *txqi;
+	struct sk_buff **frag_tail, *head;
+	int subframe_len = skb->len - ETH_ALEN;
+	u8 max_subframes = sta->sta.max_amsdu_subframes;
+	int max_frags = local->hw.max_tx_fragments;
+	int max_amsdu_len = sta->sta.max_amsdu_len;
+	__be16 len;
+	void *data;
+	bool ret = false;
+	int n = 1, nfrags;
+
+	if (!ieee80211_hw_check(&local->hw, TX_AMSDU))
+		return false;
+
+	if (!txq)
+		return false;
+
+	txqi = to_txq_info(txq);
+	if (test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags))
+		return false;
+
+	if (sta->sta.max_rc_amsdu_len)
+		max_amsdu_len = min_t(int, max_amsdu_len,
+				      sta->sta.max_rc_amsdu_len);
+
+	spin_lock_bh(&txqi->queue.lock);
+
+	head = skb_peek_tail(&txqi->queue);
+	if (!head)
+		goto out;
+
+	if (skb->len + head->len > max_amsdu_len)
+		goto out;
+
+	if (!ieee80211_amsdu_prepare_head(sdata, fast_tx, head))
+		goto out;
+
+	nfrags = 1 + skb_shinfo(skb)->nr_frags;
+	nfrags += 1 + skb_shinfo(head)->nr_frags;
+	frag_tail = &skb_shinfo(head)->frag_list;
+	while (*frag_tail) {
+		nfrags += 1 + skb_shinfo(*frag_tail)->nr_frags;
+		frag_tail = &(*frag_tail)->next;
+		n++;
+	}
+
+	if (max_subframes && n > max_subframes)
+		goto out;
+
+	if (max_frags && nfrags > max_frags)
+		goto out;
+
+	if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(rfc1042_header) + 2,
+					 &subframe_len))
+		goto out;
+
+	ret = true;
+	data = skb_push(skb, ETH_ALEN + 2);
+	memmove(data, data + ETH_ALEN + 2, 2 * ETH_ALEN);
+
+	data += 2 * ETH_ALEN;
+	len = cpu_to_be16(subframe_len);
+	memcpy(data, &len, 2);
+	memcpy(data + 2, rfc1042_header, sizeof(rfc1042_header));
+
+	head->len += skb->len;
+	head->data_len += skb->len;
+	*frag_tail = skb;
+
+out:
+	spin_unlock_bh(&txqi->queue.lock);
+
+	return ret;
+}
+
 static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
 				struct net_device *dev, struct sta_info *sta,
 				struct ieee80211_fast_tx *fast_tx,
@@ -2826,6 +3013,10 @@ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_tx_stats(dev, skb->len + extra_head);
 
+	if ((hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) &&
+	    ieee80211_amsdu_aggregate(sdata, sta, fast_tx, skb))
+		return true;
+
 	/* will not be crypto-handled beyond what we do here, so use false
 	 * as the may-encrypt argument for the resize to not account for
 	 * more room than we already have in 'extra_head'
@@ -3406,7 +3597,7 @@ __ieee80211_beacon_get(struct ieee80211_hw *hw,
 	struct sk_buff *skb = NULL;
 	struct ieee80211_tx_info *info;
 	struct ieee80211_sub_if_data *sdata = NULL;
-	enum ieee80211_band band;
+	enum nl80211_band band;
 	struct ieee80211_tx_rate_control txrc;
 	struct ieee80211_chanctx_conf *chanctx_conf;
 	int csa_off_base = 0;
@@ -3974,7 +4165,7 @@ EXPORT_SYMBOL(ieee80211_unreserve_tid);
 
 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
 				 struct sk_buff *skb, int tid,
-				 enum ieee80211_band band)
+				 enum nl80211_band band)
 {
 	int ac = ieee802_1d_to_ac[tid & 7];