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

Pull networking updates from David Miller:

 1) Add TX fast path in mac80211, from Johannes Berg.

 2) Add TSO/GRO support to ibmveth, from Thomas Falcon

 3) Move away from cached routes in ipv6, just like ipv4, from Martin
    KaFai Lau.

 4) Lots of new rhashtable tests, from Thomas Graf.

 5) Run ingress qdisc lockless, from Alexei Starovoitov.

 6) Allow servers to fetch TCP packet headers for SYN packets of new
    connections, for fingerprinting.  From Eric Dumazet.

 7) Add mode parameter to pktgen, for testing receive.  From Alexei
    Starovoitov.

 8) Cache access optimizations via simplifications of build_skb(), from
    Alexander Duyck.

 9) Move page frag allocator under mm/, also from Alexander.

10) Add xmit_more support to hv_netvsc, from KY Srinivasan.

11) Add a counter guard in case we try to perform endless reclassify
    loops in the packet scheduler.

12) Extern flow dissector to be programmable and use it in new "Flower"
    classifier.  From Jiri Pirko.

13) AF_PACKET fanout rollover fixes, performance improvements, and new
    statistics.  From Willem de Bruijn.

14) Add netdev driver for GENEVE tunnels, from John W Linville.

15) Add ingress netfilter hooks and filtering, from Pablo Neira Ayuso.

16) Fix handling of epoll edge triggers in TCP, from Eric Dumazet.

17) Add an ECN retry fallback for the initial TCP handshake, from Daniel
    Borkmann.

18) Add tail call support to BPF, from Alexei Starovoitov.

19) Add several pktgen helper scripts, from Jesper Dangaard Brouer.

20) Add zerocopy support to AF_UNIX, from Hannes Frederic Sowa.

21) Favor even port numbers for allocation to connect() requests, and
    odd port numbers for bind(0), in an effort to help avoid
    ip_local_port_range exhaustion.  From Eric Dumazet.

22) Add Cavium ThunderX driver, from Sunil Goutham.

23) Allow bpf programs to access skb_iif and dev->ifindex SKB metadata,
    from Alexei Starovoitov.

24) Add support for T6 chips in cxgb4vf driver, from Hariprasad Shenai.

25) Double TCP Small Queues default to 256K to accomodate situations
    like the XEN driver and wireless aggregation.  From Wei Liu.

26) Add more entropy inputs to flow dissector, from Tom Herbert.

27) Add CDG congestion control algorithm to TCP, from Kenneth Klette
    Jonassen.

28) Convert ipset over to RCU locking, from Jozsef Kadlecsik.

29) Track and act upon link status of ipv4 route nexthops, from Andy
    Gospodarek.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1670 commits)
  bridge: vlan: flush the dynamically learned entries on port vlan delete
  bridge: multicast: add a comment to br_port_state_selection about blocking state
  net: inet_diag: export IPV6_V6ONLY sockopt
  stmmac: troubleshoot unexpected bits in des0 & des1
  net: ipv4 sysctl option to ignore routes when nexthop link is down
  net: track link-status of ipv4 nexthops
  net: switchdev: ignore unsupported bridge flags
  net: Cavium: Fix MAC address setting in shutdown state
  drivers: net: xgene: fix for ACPI support without ACPI
  ip: report the original address of ICMP messages
  net/mlx5e: Prefetch skb data on RX
  net/mlx5e: Pop cq outside mlx5e_get_cqe
  net/mlx5e: Remove mlx5e_cq.sqrq back-pointer
  net/mlx5e: Remove extra spaces
  net/mlx5e: Avoid TX CQE generation if more xmit packets expected
  net/mlx5e: Avoid redundant dev_kfree_skb() upon NOP completion
  net/mlx5e: Remove re-assignment of wq type in mlx5e_enable_rq()
  net/mlx5e: Use skb_shinfo(skb)->gso_segs rather than counting them
  net/mlx5e: Static mapping of netdev priv resources to/from netdev TX queues
  net/mlx4_en: Use HW counters for rx/tx bytes/packets in PF device
  ...

1 files changed, 129 insertions, 79 deletions

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index 01a2b384f358..89eb16b30fc4 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -637,58 +637,21 @@ static int ath10k_htt_rx_crypto_tail_len(struct ath10k *ar,
 	return 0;
 }
 
-struct rfc1042_hdr {
-	u8 llc_dsap;
-	u8 llc_ssap;
-	u8 llc_ctrl;
-	u8 snap_oui[3];
-	__be16 snap_type;
-} __packed;
-
 struct amsdu_subframe_hdr {
 	u8 dst[ETH_ALEN];
 	u8 src[ETH_ALEN];
 	__be16 len;
 } __packed;
 
-static const u8 rx_legacy_rate_idx[] = {
-	3,	/* 0x00  - 11Mbps  */
-	2,	/* 0x01  - 5.5Mbps */
-	1,	/* 0x02  - 2Mbps   */
-	0,	/* 0x03  - 1Mbps   */
-	3,	/* 0x04  - 11Mbps  */
-	2,	/* 0x05  - 5.5Mbps */
-	1,	/* 0x06  - 2Mbps   */
-	0,	/* 0x07  - 1Mbps   */
-	10,	/* 0x08  - 48Mbps  */
-	8,	/* 0x09  - 24Mbps  */
-	6,	/* 0x0A  - 12Mbps  */
-	4,	/* 0x0B  - 6Mbps   */
-	11,	/* 0x0C  - 54Mbps  */
-	9,	/* 0x0D  - 36Mbps  */
-	7,	/* 0x0E  - 18Mbps  */
-	5,	/* 0x0F  - 9Mbps   */
-};
-
 static void ath10k_htt_rx_h_rates(struct ath10k *ar,
 				  struct ieee80211_rx_status *status,
 				  struct htt_rx_desc *rxd)
 {
-	enum ieee80211_band band;
-	u8 cck, rate, rate_idx, bw, sgi, mcs, nss;
+	struct ieee80211_supported_band *sband;
+	u8 cck, rate, bw, sgi, mcs, nss;
 	u8 preamble = 0;
 	u32 info1, info2, info3;
 
-	/* Band value can't be set as undefined but freq can be 0 - use that to
-	 * determine whether band is provided.
-	 *
-	 * FIXME: Perhaps this can go away if CCK rate reporting is a little
-	 * reworked?
-	 */
-	if (!status->freq)
-		return;
-
-	band = status->band;
 	info1 = __le32_to_cpu(rxd->ppdu_start.info1);
 	info2 = __le32_to_cpu(rxd->ppdu_start.info2);
 	info3 = __le32_to_cpu(rxd->ppdu_start.info3);
@@ -697,31 +660,18 @@ static void ath10k_htt_rx_h_rates(struct ath10k *ar,
 
 	switch (preamble) {
 	case HTT_RX_LEGACY:
+		/* To get legacy rate index band is required. Since band can't
+		 * be undefined check if freq is non-zero.
+		 */
+		if (!status->freq)
+			return;
+
 		cck = info1 & RX_PPDU_START_INFO1_L_SIG_RATE_SELECT;
 		rate = MS(info1, RX_PPDU_START_INFO1_L_SIG_RATE);
-		rate_idx = 0;
-
-		if (rate < 0x08 || rate > 0x0F)
-			break;
-
-		switch (band) {
-		case IEEE80211_BAND_2GHZ:
-			if (cck)
-				rate &= ~BIT(3);
-			rate_idx = rx_legacy_rate_idx[rate];
-			break;
-		case IEEE80211_BAND_5GHZ:
-			rate_idx = rx_legacy_rate_idx[rate];
-			/* We are using same rate table registering
-			   HW - ath10k_rates[]. In case of 5GHz skip
-			   CCK rates, so -4 here */
-			rate_idx -= 4;
-			break;
-		default:
-			break;
-		}
+		rate &= ~RX_PPDU_START_RATE_FLAG;
 
-		status->rate_idx = rate_idx;
+		sband = &ar->mac.sbands[status->band];
+		status->rate_idx = ath10k_mac_hw_rate_to_idx(sband, rate);
 		break;
 	case HTT_RX_HT:
 	case HTT_RX_HT_WITH_TXBF:
@@ -773,8 +723,87 @@ static void ath10k_htt_rx_h_rates(struct ath10k *ar,
 	}
 }
 
+static struct ieee80211_channel *
+ath10k_htt_rx_h_peer_channel(struct ath10k *ar, struct htt_rx_desc *rxd)
+{
+	struct ath10k_peer *peer;
+	struct ath10k_vif *arvif;
+	struct cfg80211_chan_def def;
+	u16 peer_id;
+
+	lockdep_assert_held(&ar->data_lock);
+
+	if (!rxd)
+		return NULL;
+
+	if (rxd->attention.flags &
+	    __cpu_to_le32(RX_ATTENTION_FLAGS_PEER_IDX_INVALID))
+		return NULL;
+
+	if (!(rxd->msdu_end.info0 &
+	      __cpu_to_le32(RX_MSDU_END_INFO0_FIRST_MSDU)))
+		return NULL;
+
+	peer_id = MS(__le32_to_cpu(rxd->mpdu_start.info0),
+		     RX_MPDU_START_INFO0_PEER_IDX);
+
+	peer = ath10k_peer_find_by_id(ar, peer_id);
+	if (!peer)
+		return NULL;
+
+	arvif = ath10k_get_arvif(ar, peer->vdev_id);
+	if (WARN_ON_ONCE(!arvif))
+		return NULL;
+
+	if (WARN_ON(ath10k_mac_vif_chan(arvif->vif, &def)))
+		return NULL;
+
+	return def.chan;
+}
+
+static struct ieee80211_channel *
+ath10k_htt_rx_h_vdev_channel(struct ath10k *ar, u32 vdev_id)
+{
+	struct ath10k_vif *arvif;
+	struct cfg80211_chan_def def;
+
+	lockdep_assert_held(&ar->data_lock);
+
+	list_for_each_entry(arvif, &ar->arvifs, list) {
+		if (arvif->vdev_id == vdev_id &&
+		    ath10k_mac_vif_chan(arvif->vif, &def) == 0)
+			return def.chan;
+	}
+
+	return NULL;
+}
+
+static void
+ath10k_htt_rx_h_any_chan_iter(struct ieee80211_hw *hw,
+			      struct ieee80211_chanctx_conf *conf,
+			      void *data)
+{
+	struct cfg80211_chan_def *def = data;
+
+	*def = conf->def;
+}
+
+static struct ieee80211_channel *
+ath10k_htt_rx_h_any_channel(struct ath10k *ar)
+{
+	struct cfg80211_chan_def def = {};
+
+	ieee80211_iter_chan_contexts_atomic(ar->hw,
+					    ath10k_htt_rx_h_any_chan_iter,
+					    &def);
+
+	return def.chan;
+}
+
 static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
-				    struct ieee80211_rx_status *status)
+				    struct ieee80211_rx_status *status,
+				    struct htt_rx_desc *rxd,
+				    u32 vdev_id)
 {
 	struct ieee80211_channel *ch;
 
@@ -782,6 +811,12 @@ static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
 	ch = ar->scan_channel;
 	if (!ch)
 		ch = ar->rx_channel;
+	if (!ch)
+		ch = ath10k_htt_rx_h_peer_channel(ar, rxd);
+	if (!ch)
+		ch = ath10k_htt_rx_h_vdev_channel(ar, vdev_id);
+	if (!ch)
+		ch = ath10k_htt_rx_h_any_channel(ar);
 	spin_unlock_bh(&ar->data_lock);
 
 	if (!ch)
@@ -819,7 +854,8 @@ static void ath10k_htt_rx_h_mactime(struct ath10k *ar,
 
 static void ath10k_htt_rx_h_ppdu(struct ath10k *ar,
 				 struct sk_buff_head *amsdu,
-				 struct ieee80211_rx_status *status)
+				 struct ieee80211_rx_status *status,
+				 u32 vdev_id)
 {
 	struct sk_buff *first;
 	struct htt_rx_desc *rxd;
@@ -851,7 +887,7 @@ static void ath10k_htt_rx_h_ppdu(struct ath10k *ar,
 		status->flag |= RX_FLAG_NO_SIGNAL_VAL;
 
 		ath10k_htt_rx_h_signal(ar, status, rxd);
-		ath10k_htt_rx_h_channel(ar, status);
+		ath10k_htt_rx_h_channel(ar, status, rxd, vdev_id);
 		ath10k_htt_rx_h_rates(ar, status, rxd);
 	}
 
@@ -929,10 +965,16 @@ static void ath10k_process_rx(struct ath10k *ar,
 	ieee80211_rx(ar->hw, skb);
 }
 
-static int ath10k_htt_rx_nwifi_hdrlen(struct ieee80211_hdr *hdr)
+static int ath10k_htt_rx_nwifi_hdrlen(struct ath10k *ar,
+				      struct ieee80211_hdr *hdr)
 {
-	/* nwifi header is padded to 4 bytes. this fixes 4addr rx */
-	return round_up(ieee80211_hdrlen(hdr->frame_control), 4);
+	int len = ieee80211_hdrlen(hdr->frame_control);
+
+	if (!test_bit(ATH10K_FW_FEATURE_NO_NWIFI_DECAP_4ADDR_PADDING,
+		      ar->fw_features))
+		len = round_up(len, 4);
+
+	return len;
 }
 
 static void ath10k_htt_rx_h_undecap_raw(struct ath10k *ar,
@@ -1031,7 +1073,7 @@ static void ath10k_htt_rx_h_undecap_nwifi(struct ath10k *ar,
 
 	/* pull decapped header and copy SA & DA */
 	hdr = (struct ieee80211_hdr *)msdu->data;
-	hdr_len = ath10k_htt_rx_nwifi_hdrlen(hdr);
+	hdr_len = ath10k_htt_rx_nwifi_hdrlen(ar, hdr);
 	ether_addr_copy(da, ieee80211_get_DA(hdr));
 	ether_addr_copy(sa, ieee80211_get_SA(hdr));
 	skb_pull(msdu, hdr_len);
@@ -1522,7 +1564,7 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 			break;
 		}
 
-		ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status);
+		ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status, 0xffff);
 		ath10k_htt_rx_h_unchain(ar, &amsdu, ret > 0);
 		ath10k_htt_rx_h_filter(ar, &amsdu, rx_status);
 		ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status);
@@ -1569,7 +1611,7 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 		return;
 	}
 
-	ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status);
+	ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status, 0xffff);
 	ath10k_htt_rx_h_filter(ar, &amsdu, rx_status);
 	ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status);
 	ath10k_htt_rx_h_deliver(ar, &amsdu, rx_status);
@@ -1598,6 +1640,7 @@ static void ath10k_htt_rx_frm_tx_compl(struct ath10k *ar,
 		tx_done.no_ack = true;
 		break;
 	case HTT_DATA_TX_STATUS_OK:
+		tx_done.success = true;
 		break;
 	case HTT_DATA_TX_STATUS_DISCARD:
 	case HTT_DATA_TX_STATUS_POSTPONE:
@@ -1796,7 +1839,7 @@ static void ath10k_htt_rx_h_rx_offload(struct ath10k *ar,
 		status->flag |= RX_FLAG_NO_SIGNAL_VAL;
 
 		ath10k_htt_rx_h_rx_offload_prot(status, msdu);
-		ath10k_htt_rx_h_channel(ar, status);
+		ath10k_htt_rx_h_channel(ar, status, NULL, rx->vdev_id);
 		ath10k_process_rx(ar, status, msdu);
 	}
 }
@@ -1869,7 +1912,7 @@ static void ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb)
 			 * better to report something than nothing though. This
 			 * should still give an idea about rx rate to the user.
 			 */
-			ath10k_htt_rx_h_ppdu(ar, &amsdu, status);
+			ath10k_htt_rx_h_ppdu(ar, &amsdu, status, vdev_id);
 			ath10k_htt_rx_h_filter(ar, &amsdu, status);
 			ath10k_htt_rx_h_mpdu(ar, &amsdu, status);
 			ath10k_htt_rx_h_deliver(ar, &amsdu, status);
@@ -1892,6 +1935,7 @@ void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
 {
 	struct ath10k_htt *htt = &ar->htt;
 	struct htt_resp *resp = (struct htt_resp *)skb->data;
+	enum htt_t2h_msg_type type;
 
 	/* confirm alignment */
 	if (!IS_ALIGNED((unsigned long)skb->data, 4))
@@ -1899,7 +1943,16 @@ void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
 
 	ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx, msg_type: 0x%0X\n",
 		   resp->hdr.msg_type);
-	switch (resp->hdr.msg_type) {
+
+	if (resp->hdr.msg_type >= ar->htt.t2h_msg_types_max) {
+		ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx, unsupported msg_type: 0x%0X\n max: 0x%0X",
+			   resp->hdr.msg_type, ar->htt.t2h_msg_types_max);
+		dev_kfree_skb_any(skb);
+		return;
+	}
+	type = ar->htt.t2h_msg_types[resp->hdr.msg_type];
+
+	switch (type) {
 	case HTT_T2H_MSG_TYPE_VERSION_CONF: {
 		htt->target_version_major = resp->ver_resp.major;
 		htt->target_version_minor = resp->ver_resp.minor;
@@ -1937,6 +1990,7 @@ void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
 
 		switch (status) {
 		case HTT_MGMT_TX_STATUS_OK:
+			tx_done.success = true;
 			break;
 		case HTT_MGMT_TX_STATUS_RETRY:
 			tx_done.no_ack = true;
@@ -1976,7 +2030,6 @@ void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
 		break;
 	}
 	case HTT_T2H_MSG_TYPE_TEST:
-		/* FIX THIS */
 		break;
 	case HTT_T2H_MSG_TYPE_STATS_CONF:
 		trace_ath10k_htt_stats(ar, skb->data, skb->len);
@@ -2018,11 +2071,8 @@ void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
 		return;
 	}
 	case HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND:
-		/* FIXME: This WMI-TLV event is overlapping with 10.2
-		 * CHAN_CHANGE - both being 0xF. Neither is being used in
-		 * practice so no immediate action is necessary. Nevertheless
-		 * HTT may need an abstraction layer like WMI has one day.
-		 */
+		break;
+	case HTT_T2H_MSG_TYPE_CHAN_CHANGE:
 		break;
 	default:
 		ath10k_warn(ar, "htt event (%d) not handled\n",