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

Pull networking updates from David Miller:

 1) Unified UDP encapsulation offload methods for drivers, from
    Alexander Duyck.

 2) Make DSA binding more sane, from Andrew Lunn.

 3) Support QCA9888 chips in ath10k, from Anilkumar Kolli.

 4) Several workqueue usage cleanups, from Bhaktipriya Shridhar.

 5) Add XDP (eXpress Data Path), essentially running BPF programs on RX
    packets as soon as the device sees them, with the option to mirror
    the packet on TX via the same interface.  From Brenden Blanco and
    others.

 6) Allow qdisc/class stats dumps to run lockless, from Eric Dumazet.

 7) Add VLAN support to b53 and bcm_sf2, from Florian Fainelli.

 8) Simplify netlink conntrack entry layout, from Florian Westphal.

 9) Add ipv4 forwarding support to mlxsw spectrum driver, from Ido
    Schimmel, Yotam Gigi, and Jiri Pirko.

10) Add SKB array infrastructure and convert tun and macvtap over to it.
    From Michael S Tsirkin and Jason Wang.

11) Support qdisc packet injection in pktgen, from John Fastabend.

12) Add neighbour monitoring framework to TIPC, from Jon Paul Maloy.

13) Add NV congestion control support to TCP, from Lawrence Brakmo.

14) Add GSO support to SCTP, from Marcelo Ricardo Leitner.

15) Allow GRO and RPS to function on macsec devices, from Paolo Abeni.

16) Support MPLS over IPV4, from Simon Horman.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1622 commits)
  xgene: Fix build warning with ACPI disabled.
  be2net: perform temperature query in adapter regardless of its interface state
  l2tp: Correctly return -EBADF from pppol2tp_getname.
  net/mlx5_core/health: Remove deprecated create_singlethread_workqueue
  net: ipmr/ip6mr: update lastuse on entry change
  macsec: ensure rx_sa is set when validation is disabled
  tipc: dump monitor attributes
  tipc: add a function to get the bearer name
  tipc: get monitor threshold for the cluster
  tipc: make cluster size threshold for monitoring configurable
  tipc: introduce constants for tipc address validation
  net: neigh: disallow transition to NUD_STALE if lladdr is unchanged in neigh_update()
  MAINTAINERS: xgene: Add driver and documentation path
  Documentation: dtb: xgene: Add MDIO node
  dtb: xgene: Add MDIO node
  drivers: net: xgene: ethtool: Use phy_ethtool_gset and sset
  drivers: net: xgene: Use exported functions
  drivers: net: xgene: Enable MDIO driver
  drivers: net: xgene: Add backward compatibility
  drivers: net: phy: xgene: Add MDIO driver
  ...

1 files changed, 66 insertions, 28 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
index 81dd2f6a48a5..227c5ed9cbe6 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
@@ -211,6 +211,9 @@ static bool rs_sgi_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	if (is_ht80(rate) && (vht_cap->cap &
 			     IEEE80211_VHT_CAP_SHORT_GI_80))
 		return true;
+	if (is_ht160(rate) && (vht_cap->cap &
+			     IEEE80211_VHT_CAP_SHORT_GI_160))
+		return true;
 
 	return false;
 }
@@ -399,7 +402,7 @@ static int iwl_hwrate_to_plcp_idx(u32 rate_n_flags)
 static void rs_rate_scale_perform(struct iwl_mvm *mvm,
 				  struct ieee80211_sta *sta,
 				  struct iwl_lq_sta *lq_sta,
-				  int tid);
+				  int tid, bool ndp);
 static void rs_fill_lq_cmd(struct iwl_mvm *mvm,
 			   struct ieee80211_sta *sta,
 			   struct iwl_lq_sta *lq_sta,
@@ -445,6 +448,13 @@ static const u16 expected_tpt_siso_80MHz[4][IWL_RATE_COUNT] = {
 	{0, 0, 0, 0, 241, 0, 475, 701, 921, 1343, 1741, 1931, 2117, 2468, 2691},
 };
 
+static const u16 expected_tpt_siso_160MHz[4][IWL_RATE_COUNT] = {
+	{0, 0, 0, 0, 191, 0, 244, 288,  298,  308,  313,  318,  323,  328,  330},
+	{0, 0, 0, 0, 200, 0, 251, 293,  302,  312,  317,  322,  327,  332,  334},
+	{0, 0, 0, 0, 439, 0, 875, 1307, 1736, 2584, 3419, 3831, 4240, 5049, 5581},
+	{0, 0, 0, 0, 488, 0, 972, 1451, 1925, 2864, 3785, 4240, 4691, 5581, 6165},
+};
+
 static const u16 expected_tpt_mimo2_20MHz[4][IWL_RATE_COUNT] = {
 	{0, 0, 0, 0,  74, 0, 123, 155, 179, 213, 235, 243, 250,  261, 0},
 	{0, 0, 0, 0,  81, 0, 131, 164, 187, 221, 242, 250, 256,  267, 0},
@@ -466,6 +476,13 @@ static const u16 expected_tpt_mimo2_80MHz[4][IWL_RATE_COUNT] = {
 	{0, 0, 0, 0, 474, 0, 920, 1338, 1732, 2464, 3116, 3418, 3705, 4225, 4545},
 };
 
+static const u16 expected_tpt_mimo2_160MHz[4][IWL_RATE_COUNT] = {
+	{0, 0, 0, 0, 240, 0, 278,  308,  313,  319,  322,  324,  328,  330,   334},
+	{0, 0, 0, 0, 247, 0, 282,  310,  315,  320,  323,  325,  329,  332,   338},
+	{0, 0, 0, 0, 875, 0, 1735, 2582, 3414, 5043, 6619, 7389, 8147, 9629,  10592},
+	{0, 0, 0, 0, 971, 0, 1925, 2861, 3779, 5574, 7304, 8147, 8976, 10592, 11640},
+};
+
 /* mbps, mcs */
 static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = {
 	{  "1", "BPSK DSSS"},
@@ -901,7 +918,6 @@ static int rs_rate_from_ucode_rate(const u32 ucode_rate,
 		}
 	}
 
-	WARN_ON_ONCE(rate->bw == RATE_MCS_CHAN_WIDTH_160);
 	WARN_ON_ONCE(rate->bw == RATE_MCS_CHAN_WIDTH_80 &&
 		     !is_vht(rate));
 
@@ -1161,7 +1177,7 @@ static u8 rs_get_tid(struct ieee80211_hdr *hdr)
 }
 
 void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-			  int tid, struct ieee80211_tx_info *info)
+			  int tid, struct ieee80211_tx_info *info, bool ndp)
 {
 	int legacy_success;
 	int retries;
@@ -1384,7 +1400,7 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 done:
 	/* See if there's a better rate or modulation mode to try. */
 	if (sta->supp_rates[info->band])
-		rs_rate_scale_perform(mvm, sta, lq_sta, tid);
+		rs_rate_scale_perform(mvm, sta, lq_sta, tid, ndp);
 }
 
 /*
@@ -1407,7 +1423,8 @@ static void rs_mac80211_tx_status(void *mvm_r,
 	    info->flags & IEEE80211_TX_CTL_NO_ACK)
 		return;
 
-	iwl_mvm_rs_tx_status(mvm, sta, rs_get_tid(hdr), info);
+	iwl_mvm_rs_tx_status(mvm, sta, rs_get_tid(hdr), info,
+			     ieee80211_is_qos_nullfunc(hdr->frame_control));
 }
 
 /*
@@ -1494,6 +1511,9 @@ static const u16 *rs_get_expected_tpt_table(struct iwl_lq_sta *lq_sta,
 		case RATE_MCS_CHAN_WIDTH_80:
 			ht_tbl_pointer = expected_tpt_siso_80MHz;
 			break;
+		case RATE_MCS_CHAN_WIDTH_160:
+			ht_tbl_pointer = expected_tpt_siso_160MHz;
+			break;
 		default:
 			WARN_ON_ONCE(1);
 		}
@@ -1508,6 +1528,9 @@ static const u16 *rs_get_expected_tpt_table(struct iwl_lq_sta *lq_sta,
 		case RATE_MCS_CHAN_WIDTH_80:
 			ht_tbl_pointer = expected_tpt_mimo2_80MHz;
 			break;
+		case RATE_MCS_CHAN_WIDTH_160:
+			ht_tbl_pointer = expected_tpt_mimo2_160MHz;
+			break;
 		default:
 			WARN_ON_ONCE(1);
 		}
@@ -1582,12 +1605,17 @@ static s32 rs_get_best_rate(struct iwl_mvm *mvm,
 
 static u32 rs_bw_from_sta_bw(struct ieee80211_sta *sta)
 {
-	if (sta->bandwidth >= IEEE80211_STA_RX_BW_80)
+	switch (sta->bandwidth) {
+	case IEEE80211_STA_RX_BW_160:
+		return RATE_MCS_CHAN_WIDTH_160;
+	case IEEE80211_STA_RX_BW_80:
 		return RATE_MCS_CHAN_WIDTH_80;
-	else if (sta->bandwidth >= IEEE80211_STA_RX_BW_40)
+	case IEEE80211_STA_RX_BW_40:
 		return RATE_MCS_CHAN_WIDTH_40;
-
-	return RATE_MCS_CHAN_WIDTH_20;
+	case IEEE80211_STA_RX_BW_20:
+	default:
+		return RATE_MCS_CHAN_WIDTH_20;
+	}
 }
 
 /*
@@ -2213,7 +2241,7 @@ static bool rs_tpc_perform(struct iwl_mvm *mvm,
 static void rs_rate_scale_perform(struct iwl_mvm *mvm,
 				  struct ieee80211_sta *sta,
 				  struct iwl_lq_sta *lq_sta,
-				  int tid)
+				  int tid, bool ndp)
 {
 	int low = IWL_RATE_INVALID;
 	int high = IWL_RATE_INVALID;
@@ -2512,7 +2540,7 @@ lq_update:
 			    (lq_sta->tx_agg_tid_en & (1 << tid)) &&
 			    (tid != IWL_MAX_TID_COUNT)) {
 				tid_data = &sta_priv->tid_data[tid];
-				if (tid_data->state == IWL_AGG_OFF) {
+				if (tid_data->state == IWL_AGG_OFF && !ndp) {
 					IWL_DEBUG_RATE(mvm,
 						       "try to aggregate tid %d\n",
 						       tid);
@@ -2565,6 +2593,9 @@ static const struct rs_init_rate_info rs_optimal_rates_ht[] = {
 	{ S8_MIN, IWL_RATE_MCS_0_INDEX},
 };
 
+/* MCS index 9 is not valid for 20MHz VHT channel width,
+ * but is ok for 40, 80 and 160MHz channels.
+ */
 static const struct rs_init_rate_info rs_optimal_rates_vht_20mhz[] = {
 	{ -60, IWL_RATE_MCS_8_INDEX },
 	{ -64, IWL_RATE_MCS_7_INDEX },
@@ -2577,7 +2608,7 @@ static const struct rs_init_rate_info rs_optimal_rates_vht_20mhz[] = {
 	{ S8_MIN, IWL_RATE_MCS_0_INDEX},
 };
 
-static const struct rs_init_rate_info rs_optimal_rates_vht_40_80mhz[] = {
+static const struct rs_init_rate_info rs_optimal_rates_vht[] = {
 	{ -60, IWL_RATE_MCS_9_INDEX },
 	{ -64, IWL_RATE_MCS_8_INDEX },
 	{ -68, IWL_RATE_MCS_7_INDEX },
@@ -2640,9 +2671,9 @@ static void rs_init_optimal_rate(struct iwl_mvm *mvm,
 			lq_sta->optimal_nentries =
 				ARRAY_SIZE(rs_optimal_rates_vht_20mhz);
 		} else {
-			lq_sta->optimal_rates = rs_optimal_rates_vht_40_80mhz;
+			lq_sta->optimal_rates = rs_optimal_rates_vht;
 			lq_sta->optimal_nentries =
-				ARRAY_SIZE(rs_optimal_rates_vht_40_80mhz);
+				ARRAY_SIZE(rs_optimal_rates_vht);
 		}
 	} else if (is_ht(rate)) {
 		lq_sta->optimal_rates = rs_optimal_rates_ht;
@@ -2734,23 +2765,25 @@ static void rs_get_initial_rate(struct iwl_mvm *mvm,
 	 */
 	if (sta->vht_cap.vht_supported &&
 	    best_rssi > IWL_RS_LOW_RSSI_THRESHOLD) {
-		if (sta->bandwidth >= IEEE80211_STA_RX_BW_40) {
-			initial_rates = rs_optimal_rates_vht_40_80mhz;
-			nentries = ARRAY_SIZE(rs_optimal_rates_vht_40_80mhz);
-			if (sta->bandwidth >= IEEE80211_STA_RX_BW_80)
-				rate->bw = RATE_MCS_CHAN_WIDTH_80;
-			else
-				rate->bw = RATE_MCS_CHAN_WIDTH_40;
-		} else if (sta->bandwidth == IEEE80211_STA_RX_BW_20) {
+		switch (sta->bandwidth) {
+		case IEEE80211_STA_RX_BW_160:
+		case IEEE80211_STA_RX_BW_80:
+		case IEEE80211_STA_RX_BW_40:
+			initial_rates = rs_optimal_rates_vht;
+			nentries = ARRAY_SIZE(rs_optimal_rates_vht);
+			break;
+		case IEEE80211_STA_RX_BW_20:
 			initial_rates = rs_optimal_rates_vht_20mhz;
 			nentries = ARRAY_SIZE(rs_optimal_rates_vht_20mhz);
-			rate->bw = RATE_MCS_CHAN_WIDTH_20;
-		} else {
+			break;
+		default:
 			IWL_ERR(mvm, "Invalid BW %d\n", sta->bandwidth);
 			goto out;
 		}
+
 		active_rate = lq_sta->active_siso_rate;
 		rate->type = LQ_VHT_SISO;
+		rate->bw = rs_bw_from_sta_bw(sta);
 	} else if (sta->ht_cap.ht_supported &&
 		   best_rssi > IWL_RS_LOW_RSSI_THRESHOLD) {
 		initial_rates = rs_optimal_rates_ht;
@@ -3057,6 +3090,9 @@ void iwl_mvm_update_frame_stats(struct iwl_mvm *mvm, u32 rate, bool agg)
 	case RATE_MCS_CHAN_WIDTH_80:
 		mvm->drv_rx_stats.bw_80_frames++;
 		break;
+	case RATE_MCS_CHAN_WIDTH_160:
+		mvm->drv_rx_stats.bw_160_frames++;
+		break;
 	default:
 		WARN_ONCE(1, "bad BW. rate 0x%x", rate);
 	}
@@ -3705,7 +3741,8 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
 		desc += sprintf(buff + desc, " %s",
 				(is_ht20(rate)) ? "20MHz" :
 				(is_ht40(rate)) ? "40MHz" :
-				(is_ht80(rate)) ? "80Mhz" : "BAD BW");
+				(is_ht80(rate)) ? "80MHz" :
+				(is_ht160(rate)) ? "160MHz" : "BAD BW");
 		desc += sprintf(buff + desc, " %s %s %s %s\n",
 				(rate->sgi) ? "SGI" : "NGI",
 				(rate->ldpc) ? "LDPC" : "BCC",
@@ -3787,9 +3824,10 @@ static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file,
 				lq_sta->active_tbl == i ? "*" : "x",
 				rate->type,
 				rate->sgi,
-				is_ht20(rate) ? "20Mhz" :
-				is_ht40(rate) ? "40Mhz" :
-				is_ht80(rate) ? "80Mhz" : "ERR",
+				is_ht20(rate) ? "20MHz" :
+				is_ht40(rate) ? "40MHz" :
+				is_ht80(rate) ? "80MHz" :
+				is_ht160(rate) ? "160MHz" : "ERR",
 				rate->index);
 		for (j = 0; j < IWL_RATE_COUNT; j++) {
 			desc += sprintf(buff+desc,