---- a/drivers/net/wireless/ath/ath9k/common.h
-+++ b/drivers/net/wireless/ath/ath9k/common.h
-@@ -27,7 +27,7 @@
- #define WME_MAX_BA WME_BA_BMP_SIZE
- #define ATH_TID_MAX_BUFS (2 * WME_MAX_BA)
-
--#define ATH_RSSI_DUMMY_MARKER 0x127
-+#define ATH_RSSI_DUMMY_MARKER 127
- #define ATH_RSSI_LPF_LEN 10
- #define RSSI_LPF_THRESHOLD -20
- #define ATH_RSSI_EP_MULTIPLIER (1<<7)
---- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
-+++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
-@@ -1067,15 +1067,19 @@ static bool ath9k_rx_prepare(struct ath9
-
- last_rssi = priv->rx.last_rssi;
-
-- if (likely(last_rssi != ATH_RSSI_DUMMY_MARKER))
-- rxbuf->rxstatus.rs_rssi = ATH_EP_RND(last_rssi,
-- ATH_RSSI_EP_MULTIPLIER);
-+ if (ieee80211_is_beacon(hdr->frame_control) &&
-+ !is_zero_ether_addr(common->curbssid) &&
-+ ether_addr_equal(hdr->addr3, common->curbssid)) {
-+ s8 rssi = rxbuf->rxstatus.rs_rssi;
-
-- if (rxbuf->rxstatus.rs_rssi < 0)
-- rxbuf->rxstatus.rs_rssi = 0;
-+ if (likely(last_rssi != ATH_RSSI_DUMMY_MARKER))
-+ rssi = ATH_EP_RND(last_rssi, ATH_RSSI_EP_MULTIPLIER);
-
-- if (ieee80211_is_beacon(fc))
-- priv->ah->stats.avgbrssi = rxbuf->rxstatus.rs_rssi;
-+ if (rssi < 0)
-+ rssi = 0;
-+
-+ priv->ah->stats.avgbrssi = rssi;
+--- a/drivers/net/wireless/ath/ath9k/ath9k.h
++++ b/drivers/net/wireless/ath/ath9k/ath9k.h
+@@ -234,6 +234,7 @@ struct ath_buf {
+ dma_addr_t bf_daddr; /* physical addr of desc */
+ dma_addr_t bf_buf_addr; /* physical addr of data buffer, for DMA */
+ bool bf_stale;
++ struct ieee80211_tx_rate rates[4];
+ struct ath_buf_state bf_state;
+ };
+
+@@ -658,11 +659,10 @@ enum sc_op_flags {
+ struct ath_rate_table;
+
+ struct ath9k_vif_iter_data {
+- const u8 *hw_macaddr; /* phy's hardware address, set
+- * before starting iteration for
+- * valid bssid mask.
+- */
++ u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */
+ u8 mask[ETH_ALEN]; /* bssid mask */
++ bool has_hw_macaddr;
++
+ int naps; /* number of AP vifs */
+ int nmeshes; /* number of mesh vifs */
+ int nstations; /* number of station vifs */
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -1698,12 +1698,11 @@ static void ath9k_hw_reset_opmode(struct
+
+ ENABLE_REGWRITE_BUFFER(ah);
+
+- REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
+- REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
+- | macStaId1
++ REG_RMW(ah, AR_STA_ID1, macStaId1
+ | AR_STA_ID1_RTS_USE_DEF
+ | (ah->config.ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
+- | ah->sta_id1_defaults);
++ | ah->sta_id1_defaults,
++ ~AR_STA_ID1_SADH_MASK);
+ ath_hw_setbssidmask(common);
+ REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
+ ath9k_hw_write_associd(ah);
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -839,10 +839,14 @@ static void ath9k_vif_iter(void *data, u
+ struct ath9k_vif_iter_data *iter_data = data;
+ int i;
+
+- if (iter_data->hw_macaddr)
++ if (iter_data->has_hw_macaddr) {
+ for (i = 0; i < ETH_ALEN; i++)
+ iter_data->mask[i] &=
+ ~(iter_data->hw_macaddr[i] ^ mac[i]);
++ } else {
++ memcpy(iter_data->hw_macaddr, mac, ETH_ALEN);
++ iter_data->has_hw_macaddr = true;
++ }
+
+ switch (vif->type) {
+ case NL80211_IFTYPE_AP:
+@@ -891,7 +895,6 @@ void ath9k_calculate_iter_data(struct ie
+ * together with the BSSID mask when matching addresses.
+ */
+ memset(iter_data, 0, sizeof(*iter_data));
+- iter_data->hw_macaddr = common->macaddr;
+ memset(&iter_data->mask, 0xff, ETH_ALEN);
+
+ if (vif)
+@@ -901,6 +904,8 @@ void ath9k_calculate_iter_data(struct ie
+ ieee80211_iterate_active_interfaces_atomic(
+ sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
+ ath9k_vif_iter, iter_data);
++
++ memcpy(common->macaddr, iter_data->hw_macaddr, ETH_ALEN);
+ }
+
+ /* Called with sc->mutex held. */
+--- a/drivers/net/wireless/ath/ath9k/reg.h
++++ b/drivers/net/wireless/ath/ath9k/reg.h
+@@ -1493,9 +1493,6 @@ enum {
+ #define AR9271_RADIO_RF_RST 0x20
+ #define AR9271_GATE_MAC_CTL 0x4000
+
+-#define AR_STA_ID0 0x8000
+-#define AR_STA_ID1 0x8004
+-#define AR_STA_ID1_SADH_MASK 0x0000FFFF
+ #define AR_STA_ID1_STA_AP 0x00010000
+ #define AR_STA_ID1_ADHOC 0x00020000
+ #define AR_STA_ID1_PWR_SAV 0x00040000
+--- a/drivers/net/wireless/ath/hw.c
++++ b/drivers/net/wireless/ath/hw.c
+@@ -118,6 +118,12 @@
+ void ath_hw_setbssidmask(struct ath_common *common)
+ {
+ void *ah = common->ah;
++ u32 id1;
++
++ REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
++ id1 = REG_READ(ah, AR_STA_ID1) & ~AR_STA_ID1_SADH_MASK;
++ id1 |= get_unaligned_le16(common->macaddr + 4);
++ REG_WRITE(ah, AR_STA_ID1, id1);
+
+ REG_WRITE(ah, AR_BSSMSKL, get_unaligned_le32(common->bssidmask));
+ REG_WRITE(ah, AR_BSSMSKU, get_unaligned_le16(common->bssidmask + 4));
+--- a/drivers/net/wireless/ath/reg.h
++++ b/drivers/net/wireless/ath/reg.h
+@@ -23,6 +23,10 @@
+ #define AR_MIBC_CMC 0x00000004
+ #define AR_MIBC_MCS 0x00000008
+
++#define AR_STA_ID0 0x8000
++#define AR_STA_ID1 0x8004
++#define AR_STA_ID1_SADH_MASK 0x0000ffff
++
+ /*
+ * BSSID mask registers. See ath_hw_set_bssid_mask()
+ * for detailed documentation about these registers.
+--- a/drivers/net/wireless/iwlegacy/4965-mac.c
++++ b/drivers/net/wireless/iwlegacy/4965-mac.c
+@@ -6059,7 +6059,7 @@ il4965_mac_channel_switch(struct ieee802
+ struct il_priv *il = hw->priv;
+ const struct il_channel_info *ch_info;
+ struct ieee80211_conf *conf = &hw->conf;
+- struct ieee80211_channel *channel = ch_switch->channel;
++ struct ieee80211_channel *channel = ch_switch->chandef.chan;
+ struct il_ht_config *ht_conf = &il->current_ht_config;
+ u16 ch;
+
+@@ -6096,23 +6096,21 @@ il4965_mac_channel_switch(struct ieee802
+ il->current_ht_config.smps = conf->smps_mode;
+
+ /* Configure HT40 channels */
+- il->ht.enabled = conf_is_ht(conf);
+- if (il->ht.enabled) {
+- if (conf_is_ht40_minus(conf)) {
+- il->ht.extension_chan_offset =
+- IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+- il->ht.is_40mhz = true;
+- } else if (conf_is_ht40_plus(conf)) {
+- il->ht.extension_chan_offset =
+- IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+- il->ht.is_40mhz = true;
+- } else {
+- il->ht.extension_chan_offset =
+- IEEE80211_HT_PARAM_CHA_SEC_NONE;
+- il->ht.is_40mhz = false;
+- }
+- } else
++ switch (cfg80211_get_chandef_type(&ch_switch->chandef)) {
++ case NL80211_CHAN_NO_HT:
++ case NL80211_CHAN_HT20:
+ il->ht.is_40mhz = false;
++ il->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
++ break;
++ case NL80211_CHAN_HT40MINUS:
++ il->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
++ il->ht.is_40mhz = true;
++ break;
++ case NL80211_CHAN_HT40PLUS:
++ il->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
++ il->ht.is_40mhz = true;
++ break;
++ }
+
+ if ((le16_to_cpu(il->staging.channel) != ch))
+ il->staging.flags = 0;
+--- a/drivers/net/wireless/iwlegacy/4965.c
++++ b/drivers/net/wireless/iwlegacy/4965.c
+@@ -1493,7 +1493,7 @@ il4965_hw_channel_switch(struct il_priv
+
+ cmd.band = band;
+ cmd.expect_beacon = 0;
+- ch = ch_switch->channel->hw_value;
++ ch = ch_switch->chandef.chan->hw_value;
+ cmd.channel = cpu_to_le16(ch);
+ cmd.rxon_flags = il->staging.flags;
+ cmd.rxon_filter_flags = il->staging.filter_flags;
+--- a/drivers/net/wireless/iwlwifi/dvm/devices.c
++++ b/drivers/net/wireless/iwlwifi/dvm/devices.c
+@@ -379,7 +379,7 @@ static int iwl5000_hw_channel_switch(str
+ };
+
+ cmd.band = priv->band == IEEE80211_BAND_2GHZ;
+- ch = ch_switch->channel->hw_value;
++ ch = ch_switch->chandef.chan->hw_value;
+ IWL_DEBUG_11H(priv, "channel switch from %d to %d\n",
+ ctx->active.channel, ch);
+ cmd.channel = cpu_to_le16(ch);
+@@ -414,7 +414,8 @@ static int iwl5000_hw_channel_switch(str
+ }
+ IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n",
+ cmd.switch_time);
+- cmd.expect_beacon = ch_switch->channel->flags & IEEE80211_CHAN_RADAR;
++ cmd.expect_beacon =
++ ch_switch->chandef.chan->flags & IEEE80211_CHAN_RADAR;
+
+ return iwl_dvm_send_cmd(priv, &hcmd);
+ }
+@@ -540,7 +541,7 @@ static int iwl6000_hw_channel_switch(str
+ hcmd.data[0] = cmd;
+
+ cmd->band = priv->band == IEEE80211_BAND_2GHZ;
+- ch = ch_switch->channel->hw_value;
++ ch = ch_switch->chandef.chan->hw_value;
+ IWL_DEBUG_11H(priv, "channel switch from %u to %u\n",
+ ctx->active.channel, ch);
+ cmd->channel = cpu_to_le16(ch);
+@@ -575,7 +576,8 @@ static int iwl6000_hw_channel_switch(str
+ }
+ IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n",
+ cmd->switch_time);
+- cmd->expect_beacon = ch_switch->channel->flags & IEEE80211_CHAN_RADAR;
++ cmd->expect_beacon =
++ ch_switch->chandef.chan->flags & IEEE80211_CHAN_RADAR;
+
+ err = iwl_dvm_send_cmd(priv, &hcmd);
+ kfree(cmd);
+--- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c
++++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
+@@ -970,7 +970,7 @@ static void iwlagn_mac_channel_switch(st
+ {
+ struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
+ struct ieee80211_conf *conf = &hw->conf;
+- struct ieee80211_channel *channel = ch_switch->channel;
++ struct ieee80211_channel *channel = ch_switch->chandef.chan;
+ struct iwl_ht_config *ht_conf = &priv->current_ht_config;
+ /*
+ * MULTI-FIXME
+@@ -1008,11 +1008,21 @@ static void iwlagn_mac_channel_switch(st
+ priv->current_ht_config.smps = conf->smps_mode;
+
+ /* Configure HT40 channels */
+- ctx->ht.enabled = conf_is_ht(conf);
+- if (ctx->ht.enabled)
+- iwlagn_config_ht40(conf, ctx);
+- else
++ switch (cfg80211_get_chandef_type(&ch_switch->chandef)) {
++ case NL80211_CHAN_NO_HT:
++ case NL80211_CHAN_HT20:
+ ctx->ht.is_40mhz = false;
++ ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
++ break;
++ case NL80211_CHAN_HT40MINUS:
++ ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
++ ctx->ht.is_40mhz = true;
++ break;
++ case NL80211_CHAN_HT40PLUS:
++ ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
++ ctx->ht.is_40mhz = true;
++ break;
++ }
+
+ if ((le16_to_cpu(ctx->staging.channel) != ch))
+ ctx->staging.flags = 0;
+--- a/drivers/net/wireless/iwlwifi/dvm/rxon.c
++++ b/drivers/net/wireless/iwlwifi/dvm/rxon.c
+@@ -1160,7 +1160,7 @@ int iwlagn_commit_rxon(struct iwl_priv *
+ }
+
+ void iwlagn_config_ht40(struct ieee80211_conf *conf,
+- struct iwl_rxon_context *ctx)
++ struct iwl_rxon_context *ctx)
+ {
+ if (conf_is_ht40_minus(conf)) {
+ ctx->ht.extension_chan_offset =
+--- a/drivers/net/wireless/mac80211_hwsim.c
++++ b/drivers/net/wireless/mac80211_hwsim.c
+@@ -25,6 +25,7 @@
+ #include <linux/if_arp.h>
+ #include <linux/rtnetlink.h>
+ #include <linux/etherdevice.h>
++#include <linux/platform_device.h>
+ #include <linux/debugfs.h>
+ #include <linux/module.h>
+ #include <linux/ktime.h>
+@@ -717,9 +718,17 @@ static bool mac80211_hwsim_tx_frame_no_n
+ rx_status.flag |= RX_FLAG_MACTIME_START;
+ rx_status.freq = chan->center_freq;
+ rx_status.band = chan->band;
+- rx_status.rate_idx = info->control.rates[0].idx;
+- if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
+- rx_status.flag |= RX_FLAG_HT;
++ if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
++ rx_status.rate_idx =
++ ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
++ rx_status.vht_nss =
++ ieee80211_rate_get_vht_nss(&info->control.rates[0]);
++ rx_status.flag |= RX_FLAG_VHT;
++ } else {
++ rx_status.rate_idx = info->control.rates[0].idx;
++ if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
++ rx_status.flag |= RX_FLAG_HT;
++ }
+ if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
+ rx_status.flag |= RX_FLAG_40MHZ;
+ if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
+@@ -1687,6 +1696,7 @@ static void mac80211_hwsim_free(void)
+ debugfs_remove(data->debugfs_ps);
+ debugfs_remove(data->debugfs);
+ ieee80211_unregister_hw(data->hw);
++ device_release_driver(data->dev);
+ device_unregister(data->dev);
+ ieee80211_free_hw(data->hw);
+ }
+@@ -1695,7 +1705,9 @@ static void mac80211_hwsim_free(void)
+
+
+ static struct device_driver mac80211_hwsim_driver = {
+- .name = "mac80211_hwsim"
++ .name = "mac80211_hwsim",
++ .bus = &platform_bus_type,
++ .owner = THIS_MODULE,
+ };
+
+ static const struct net_device_ops hwsim_netdev_ops = {
+@@ -2187,9 +2199,15 @@ static int __init init_mac80211_hwsim(vo
+ spin_lock_init(&hwsim_radio_lock);
+ INIT_LIST_HEAD(&hwsim_radios);
+
++ err = driver_register(&mac80211_hwsim_driver);
++ if (err)
++ return err;
++
+ hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
+- if (IS_ERR(hwsim_class))
+- return PTR_ERR(hwsim_class);
++ if (IS_ERR(hwsim_class)) {
++ err = PTR_ERR(hwsim_class);
++ goto failed_unregister_driver;
+ }
- rx_status->mactime = be64_to_cpu(rxbuf->rxstatus.rs_tstamp);
- rx_status->band = hw->conf.channel->band;
+ memset(addr, 0, ETH_ALEN);
+ addr[0] = 0x02;
+@@ -2211,12 +2229,20 @@ static int __init init_mac80211_hwsim(vo
+ "hwsim%d", i);
+ if (IS_ERR(data->dev)) {
+ printk(KERN_DEBUG
+- "mac80211_hwsim: device_create "
+- "failed (%ld)\n", PTR_ERR(data->dev));
++ "mac80211_hwsim: device_create failed (%ld)\n",
++ PTR_ERR(data->dev));
+ err = -ENOMEM;
+ goto failed_drvdata;
+ }
+ data->dev->driver = &mac80211_hwsim_driver;
++ err = device_bind_driver(data->dev);
++ if (err != 0) {
++ printk(KERN_DEBUG
++ "mac80211_hwsim: device_bind_driver failed (%d)\n",
++ err);
++ goto failed_hw;
++ }
++
+ skb_queue_head_init(&data->pending);
+
+ SET_IEEE80211_DEV(hw, data->dev);
+@@ -2515,6 +2541,8 @@ failed_drvdata:
+ ieee80211_free_hw(hw);
+ failed:
+ mac80211_hwsim_free();
++failed_unregister_driver:
++ driver_unregister(&mac80211_hwsim_driver);
+ return err;
+ }
+ module_init(init_mac80211_hwsim);
+@@ -2527,5 +2555,6 @@ static void __exit exit_mac80211_hwsim(v
+
+ mac80211_hwsim_free();
+ unregister_netdev(hwsim_mon);
++ driver_unregister(&mac80211_hwsim_driver);
+ }
+ module_exit(exit_mac80211_hwsim);
+--- a/drivers/net/wireless/ti/wl12xx/cmd.c
++++ b/drivers/net/wireless/ti/wl12xx/cmd.c
+@@ -301,7 +301,7 @@ int wl12xx_cmd_channel_switch(struct wl1
+ }
+
+ cmd->role_id = wlvif->role_id;
+- cmd->channel = ch_switch->channel->hw_value;
++ cmd->channel = ch_switch->chandef.chan->hw_value;
+ cmd->switch_time = ch_switch->count;
+ cmd->stop_tx = ch_switch->block_tx;
+
+--- a/drivers/net/wireless/ti/wl18xx/cmd.c
++++ b/drivers/net/wireless/ti/wl18xx/cmd.c
+@@ -42,11 +42,11 @@ int wl18xx_cmd_channel_switch(struct wl1
+ }
+
+ cmd->role_id = wlvif->role_id;
+- cmd->channel = ch_switch->channel->hw_value;
++ cmd->channel = ch_switch->chandef.chan->hw_value;
+ cmd->switch_time = ch_switch->count;
+ cmd->stop_tx = ch_switch->block_tx;
+
+- switch (ch_switch->channel->band) {
++ switch (ch_switch->chandef.chan->band) {
+ case IEEE80211_BAND_2GHZ:
+ cmd->band = WLCORE_BAND_2_4GHZ;
+ break;
+@@ -55,7 +55,7 @@ int wl18xx_cmd_channel_switch(struct wl1
+ break;
+ default:
+ wl1271_error("invalid channel switch band: %d",
+- ch_switch->channel->band);
++ ch_switch->chandef.chan->band);
+ ret = -EINVAL;
+ goto out_free;
+ }
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
-@@ -185,7 +185,7 @@ struct ieee80211_hdr {
- u8 addr3[6];
- __le16 seq_ctrl;
- u8 addr4[6];
--} __packed;
-+} __packed __aligned(2);
-
- struct ieee80211_hdr_3addr {
- __le16 frame_control;
-@@ -194,7 +194,7 @@ struct ieee80211_hdr_3addr {
- u8 addr2[6];
- u8 addr3[6];
- __le16 seq_ctrl;
--} __packed;
-+} __packed __aligned(2);
-
- struct ieee80211_qos_hdr {
- __le16 frame_control;
-@@ -204,7 +204,7 @@ struct ieee80211_qos_hdr {
- u8 addr3[6];
- __le16 seq_ctrl;
- __le16 qos_ctrl;
--} __packed;
-+} __packed __aligned(2);
+@@ -673,6 +673,36 @@ struct ieee80211_channel_sw_ie {
+ } __packed;
+
+ /**
++ * struct ieee80211_ext_chansw_ie
++ *
++ * This structure represents the "Extended Channel Switch Announcement element"
++ */
++struct ieee80211_ext_chansw_ie {
++ u8 mode;
++ u8 new_operating_class;
++ u8 new_ch_num;
++ u8 count;
++} __packed;
++
++/**
++ * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
++ * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
++ * values here
++ * This structure represents the "Secondary Channel Offset element"
++ */
++struct ieee80211_sec_chan_offs_ie {
++ u8 sec_chan_offs;
++} __packed;
++
++/**
++ * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
++ */
++struct ieee80211_wide_bw_chansw_ie {
++ u8 new_channel_width;
++ u8 new_center_freq_seg0, new_center_freq_seg1;
++} __packed;
++
++/**
+ * struct ieee80211_tim
+ *
+ * This structure refers to "Traffic Indication Map information element"
+@@ -840,12 +870,15 @@ struct ieee80211_mgmt {
+ } __packed wme_action;
+ struct{
+ u8 action_code;
+- u8 element_id;
+- u8 length;
+- struct ieee80211_channel_sw_ie sw_elem;
++ u8 variable[0];
+ } __packed chan_switch;
+ struct{
+ u8 action_code;
++ struct ieee80211_ext_chansw_ie data;
++ u8 variable[0];
++ } __packed ext_chan_switch;
++ struct{
++ u8 action_code;
+ u8 dialog_token;
+ u8 element_id;
+ u8 length;
+@@ -1638,6 +1671,7 @@ enum ieee80211_eid {
+
+ WLAN_EID_HT_CAPABILITY = 45,
+ WLAN_EID_HT_OPERATION = 61,
++ WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
+
+ WLAN_EID_RSN = 48,
+ WLAN_EID_MMIE = 76,
+@@ -1672,6 +1706,8 @@ enum ieee80211_eid {
+ WLAN_EID_VHT_CAPABILITY = 191,
+ WLAN_EID_VHT_OPERATION = 192,
+ WLAN_EID_OPMODE_NOTIF = 199,
++ WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
++ WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
+
+ /* 802.11ad */
+ WLAN_EID_NON_TX_BSSID_CAP = 83,
+@@ -1795,6 +1831,7 @@ enum ieee80211_key_len {
+
+ /* Public action codes */
+ enum ieee80211_pub_actioncode {
++ WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
+ WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
+ };
+
+--- a/include/net/cfg80211.h
++++ b/include/net/cfg80211.h
+@@ -753,6 +753,8 @@ int cfg80211_check_station_change(struct
+ * @STATION_INFO_LOCAL_PM: @local_pm filled
+ * @STATION_INFO_PEER_PM: @peer_pm filled
+ * @STATION_INFO_NONPEER_PM: @nonpeer_pm filled
++ * @STATION_INFO_CHAIN_SIGNAL: @chain_signal filled
++ * @STATION_INFO_CHAIN_SIGNAL_AVG: @chain_signal_avg filled
+ */
+ enum station_info_flags {
+ STATION_INFO_INACTIVE_TIME = 1<<0,
+@@ -781,6 +783,8 @@ enum station_info_flags {
+ STATION_INFO_NONPEER_PM = 1<<23,
+ STATION_INFO_RX_BYTES64 = 1<<24,
+ STATION_INFO_TX_BYTES64 = 1<<25,
++ STATION_INFO_CHAIN_SIGNAL = 1<<26,
++ STATION_INFO_CHAIN_SIGNAL_AVG = 1<<27,
+ };
+
+ /**
+@@ -857,6 +861,8 @@ struct sta_bss_parameters {
+ u16 beacon_interval;
+ };
+
++#define IEEE80211_MAX_CHAINS 4
++
+ /**
+ * struct station_info - station information
+ *
+@@ -874,6 +880,9 @@ struct sta_bss_parameters {
+ * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
+ * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
+ * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
++ * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg
++ * @chain_signal: per-chain signal strength of last received packet in dBm
++ * @chain_signal_avg: per-chain signal strength average in dBm
+ * @txrate: current unicast bitrate from this station
+ * @rxrate: current unicast bitrate to this station
+ * @rx_packets: packets received from this station
+@@ -909,6 +918,11 @@ struct station_info {
+ u8 plink_state;
+ s8 signal;
+ s8 signal_avg;
++
++ u8 chains;
++ s8 chain_signal[IEEE80211_MAX_CHAINS];
++ s8 chain_signal_avg[IEEE80211_MAX_CHAINS];
++
+ struct rate_info txrate;
+ struct rate_info rxrate;
+ u32 rx_packets;
+@@ -4027,6 +4041,17 @@ bool cfg80211_reg_can_beacon(struct wiph
+ void cfg80211_ch_switch_notify(struct net_device *dev,
+ struct cfg80211_chan_def *chandef);
+
++/**
++ * ieee80211_operating_class_to_band - convert operating class to band
++ *
++ * @operating_class: the operating class to convert
++ * @band: band pointer to fill
++ *
++ * Returns %true if the conversion was successful, %false otherwise.
++ */
++bool ieee80211_operating_class_to_band(u8 operating_class,
++ enum ieee80211_band *band);
++
+ /*
+ * cfg80211_tdls_oper_request - request userspace to perform TDLS operation
+ * @dev: the device on which the operation is requested
+--- a/include/net/mac80211.h
++++ b/include/net/mac80211.h
+@@ -210,7 +210,7 @@ struct ieee80211_chanctx_conf {
+ * @BSS_CHANGED_QOS: QoS for this association was enabled/disabled. Note
+ * that it is only ever disabled for station mode.
+ * @BSS_CHANGED_IDLE: Idle changed for this BSS/interface.
+- * @BSS_CHANGED_SSID: SSID changed for this BSS (AP mode)
++ * @BSS_CHANGED_SSID: SSID changed for this BSS (AP and IBSS mode)
+ * @BSS_CHANGED_AP_PROBE_RESP: Probe Response changed for this BSS (AP mode)
+ * @BSS_CHANGED_PS: PS changed for this BSS (STA mode)
+ * @BSS_CHANGED_TXPOWER: TX power setting changed for this interface
+@@ -327,7 +327,7 @@ enum ieee80211_rssi_event {
+ * your driver/device needs to do.
+ * @ps: power-save mode (STA only). This flag is NOT affected by
+ * offchannel/dynamic_ps operations.
+- * @ssid: The SSID of the current vif. Only valid in AP-mode.
++ * @ssid: The SSID of the current vif. Valid in AP and IBSS mode.
+ * @ssid_len: Length of SSID given in @ssid.
+ * @hidden_ssid: The SSID of the current vif is hidden. Only valid in AP-mode.
+ * @txpower: TX power in dBm
+@@ -562,6 +562,9 @@ enum mac80211_rate_control_flags {
+ /* maximum number of rate stages */
+ #define IEEE80211_TX_MAX_RATES 4
+
++/* maximum number of rate table entries */
++#define IEEE80211_TX_RATE_TABLE_SIZE 4
++
+ /**
+ * struct ieee80211_tx_rate - rate selection/status
+ *
+@@ -602,8 +605,8 @@ static inline void ieee80211_rate_set_vh
+ u8 mcs, u8 nss)
+ {
+ WARN_ON(mcs & ~0xF);
+- WARN_ON(nss & ~0x7);
+- rate->idx = (nss << 4) | mcs;
++ WARN_ON((nss - 1) & ~0x7);
++ rate->idx = ((nss - 1) << 4) | mcs;
+ }
+
+ static inline u8
+@@ -615,7 +618,7 @@ ieee80211_rate_get_vht_mcs(const struct
+ static inline u8
+ ieee80211_rate_get_vht_nss(const struct ieee80211_tx_rate *rate)
+ {
+- return rate->idx >> 4;
++ return (rate->idx >> 4) + 1;
+ }
+
+ /**
+@@ -656,7 +659,11 @@ struct ieee80211_tx_info {
+ struct ieee80211_tx_rate rates[
+ IEEE80211_TX_MAX_RATES];
+ s8 rts_cts_rate_idx;
+- /* 3 bytes free */
++ u8 use_rts:1;
++ u8 use_cts_prot:1;
++ u8 short_preamble:1;
++ u8 skip_table:1;
++ /* 2 bytes free */
+ };
+ /* only needed before rate control */
+ unsigned long jiffies;
+@@ -677,6 +684,8 @@ struct ieee80211_tx_info {
+ struct {
+ struct ieee80211_tx_rate driver_rates[
+ IEEE80211_TX_MAX_RATES];
++ u8 pad[4];
++
+ void *rate_driver_data[
+ IEEE80211_TX_INFO_RATE_DRIVER_DATA_SIZE / sizeof(void *)];
+ };
+@@ -840,6 +849,9 @@ enum mac80211_rx_flags {
+ * @signal: signal strength when receiving this frame, either in dBm, in dB or
+ * unspecified depending on the hardware capabilities flags
+ * @IEEE80211_HW_SIGNAL_*
++ * @chains: bitmask of receive chains for which separate signal strength
++ * values were filled.
++ * @chain_signal: per-chain signal strength, same format as @signal
+ * @antenna: antenna used
+ * @rate_idx: index of data rate into band's supported rates or MCS index if
+ * HT or VHT is used (%RX_FLAG_HT/%RX_FLAG_VHT)
+@@ -871,6 +883,8 @@ struct ieee80211_rx_status {
+ u8 band;
+ u8 antenna;
+ s8 signal;
++ u8 chains;
++ s8 chain_signal[IEEE80211_MAX_CHAINS];
+ u8 ampdu_delimiter_crc;
+ u8 vendor_radiotap_align;
+ u8 vendor_radiotap_oui[3];
+@@ -1018,13 +1032,13 @@ struct ieee80211_conf {
+ * the driver passed into mac80211.
+ * @block_tx: Indicates whether transmission must be blocked before the
+ * scheduled channel switch, as indicated by the AP.
+- * @channel: the new channel to switch to
++ * @chandef: the new channel to switch to
+ * @count: the number of TBTT's until the channel switch event
+ */
+ struct ieee80211_channel_switch {
+ u64 timestamp;
+ bool block_tx;
+- struct ieee80211_channel *channel;
++ struct cfg80211_chan_def chandef;
+ u8 count;
+ };
+
+@@ -1222,6 +1236,24 @@ enum ieee80211_sta_rx_bandwidth {
+ };
/**
- * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
-@@ -581,7 +581,7 @@ struct ieee80211s_hdr {
- __le32 seqnum;
- u8 eaddr1[6];
- u8 eaddr2[6];
--} __packed;
-+} __packed __aligned(2);
-
- /* Mesh flags */
- #define MESH_FLAGS_AE_A4 0x1
-@@ -875,7 +875,7 @@ struct ieee80211_mgmt {
- } u;
- } __packed action;
- } u;
--} __packed;
-+} __packed __aligned(2);
-
- /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
- #define BSS_MEMBERSHIP_SELECTOR_HT_PHY 127
-@@ -906,20 +906,20 @@ struct ieee80211_rts {
- __le16 duration;
- u8 ra[6];
- u8 ta[6];
--} __packed;
-+} __packed __aligned(2);
-
- struct ieee80211_cts {
- __le16 frame_control;
- __le16 duration;
- u8 ra[6];
--} __packed;
-+} __packed __aligned(2);
-
- struct ieee80211_pspoll {
- __le16 frame_control;
- __le16 aid;
- u8 bssid[6];
- u8 ta[6];
--} __packed;
-+} __packed __aligned(2);
-
- /* TDLS */
++ * struct ieee80211_sta_rates - station rate selection table
++ *
++ * @rcu_head: RCU head used for freeing the table on update
++ * @rates: transmit rates/flags to be used by default.
++ * Overriding entries per-packet is possible by using cb tx control.
++ */
++struct ieee80211_sta_rates {
++ struct rcu_head rcu_head;
++ struct {
++ s8 idx;
++ u8 count;
++ u8 count_cts;
++ u8 count_rts;
++ u16 flags;
++ } rate[IEEE80211_TX_RATE_TABLE_SIZE];
++};
++
++/**
+ * struct ieee80211_sta - station table entry
+ *
+ * A station table entry represents a station we are possibly
+@@ -1248,6 +1280,7 @@ enum ieee80211_sta_rx_bandwidth {
+ * notifications and capabilities. The value is only valid after
+ * the station moves to associated state.
+ * @smps_mode: current SMPS mode (off, static or dynamic)
++ * @tx_rates: rate control selection table
+ */
+ struct ieee80211_sta {
+ u32 supp_rates[IEEE80211_NUM_BANDS];
+@@ -1261,6 +1294,7 @@ struct ieee80211_sta {
+ u8 rx_nss;
+ enum ieee80211_sta_rx_bandwidth bandwidth;
+ enum ieee80211_smps_mode smps_mode;
++ struct ieee80211_sta_rates __rcu *rates;
+
+ /* must be last */
+ u8 drv_priv[0] __aligned(sizeof(void *));
+@@ -1416,6 +1450,9 @@ struct ieee80211_tx_control {
+ * for different virtual interfaces. See the doc section on HW queue
+ * control for more details.
+ *
++ * @IEEE80211_HW_SUPPORTS_RC_TABLE: The driver supports using a rate
++ * selection table provided by the rate control algorithm.
++ *
+ * @IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF: Use the P2P Device address for any
+ * P2P Interface. This will be honoured even if more than one interface
+ * is supported.
+@@ -1448,6 +1485,7 @@ enum ieee80211_hw_flags {
+ IEEE80211_HW_SUPPORTS_PER_STA_GTK = 1<<21,
+ IEEE80211_HW_AP_LINK_PS = 1<<22,
+ IEEE80211_HW_TX_AMPDU_SETUP_IN_HW = 1<<23,
++ IEEE80211_HW_SUPPORTS_RC_TABLE = 1<<24,
+ IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF = 1<<25,
+ IEEE80211_HW_TIMING_BEACON_ONLY = 1<<26,
+ };
+@@ -3144,6 +3182,25 @@ void ieee80211_sta_set_buffered(struct i
+ u8 tid, bool buffered);
+
+ /**
++ * ieee80211_get_tx_rates - get the selected transmit rates for a packet
++ *
++ * Call this function in a driver with per-packet rate selection support
++ * to combine the rate info in the packet tx info with the most recent
++ * rate selection table for the station entry.
++ *
++ * @vif: &struct ieee80211_vif pointer from the add_interface callback.
++ * @sta: the receiver station to which this packet is sent.
++ * @skb: the frame to be transmitted.
++ * @dest: buffer for extracted rate/retry information
++ * @max_rates: maximum number of rates to fetch
++ */
++void ieee80211_get_tx_rates(struct ieee80211_vif *vif,
++ struct ieee80211_sta *sta,
++ struct sk_buff *skb,
++ struct ieee80211_tx_rate *dest,
++ int max_rates);
++
++/**
+ * ieee80211_tx_status - transmit status callback
+ *
+ * Call this function for all transmitted frames after they have been
+@@ -4118,7 +4175,7 @@ void ieee80211_send_bar(struct ieee80211
+ * (deprecated; this will be removed once drivers get updated to use
+ * rate_idx_mask)
+ * @rate_idx_mask: user-requested (legacy) rate mask
+- * @rate_idx_mcs_mask: user-requested MCS rate mask
++ * @rate_idx_mcs_mask: user-requested MCS rate mask (NULL if not in use)
+ * @bss: whether this frame is sent out in AP or IBSS mode
+ */
+ struct ieee80211_tx_rate_control {
+@@ -4130,7 +4187,7 @@ struct ieee80211_tx_rate_control {
+ bool rts, short_preamble;
+ u8 max_rate_idx;
+ u32 rate_idx_mask;
+- u8 rate_idx_mcs_mask[IEEE80211_HT_MCS_MASK_LEN];
++ u8 *rate_idx_mcs_mask;
+ bool bss;
+ };
+
+@@ -4219,6 +4276,22 @@ bool rate_usable_index_exists(struct iee
+ return false;
+ }
+
++/**
++ * rate_control_set_rates - pass the sta rate selection to mac80211/driver
++ *
++ * When not doing a rate control probe to test rates, rate control should pass
++ * its rate selection to mac80211. If the driver supports receiving a station
++ * rate table, it will use it to ensure that frames are always sent based on
++ * the most recent rate control module decision.
++ *
++ * @hw: pointer as obtained from ieee80211_alloc_hw()
++ * @pubsta: &struct ieee80211_sta pointer to the target destination.
++ * @rates: new tx rate set to be used for this station.
++ */
++int rate_control_set_rates(struct ieee80211_hw *hw,
++ struct ieee80211_sta *pubsta,
++ struct ieee80211_sta_rates *rates);
++
+ int ieee80211_rate_control_register(struct rate_control_ops *ops);
+ void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
sdata->vif.type != NL80211_IFTYPE_ADHOC)
return -EINVAL;
+--- a/net/mac80211/cfg.c
++++ b/net/mac80211/cfg.c
+@@ -444,7 +444,7 @@ static void sta_set_sinfo(struct sta_inf
+ struct ieee80211_local *local = sdata->local;
+ struct timespec uptime;
+ u64 packets = 0;
+- int ac;
++ int i, ac;
+
+ sinfo->generation = sdata->local->sta_generation;
+
+@@ -488,6 +488,17 @@ static void sta_set_sinfo(struct sta_inf
+ sinfo->signal = (s8)sta->last_signal;
+ sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
+ }
++ if (sta->chains) {
++ sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
++ STATION_INFO_CHAIN_SIGNAL_AVG;
++
++ sinfo->chains = sta->chains;
++ for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
++ sinfo->chain_signal[i] = sta->chain_signal_last[i];
++ sinfo->chain_signal_avg[i] =
++ (s8) -ewma_read(&sta->chain_signal_avg[i]);
++ }
++ }
+
+ sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
+ sta_set_rate_info_rx(sta, &sinfo->rxrate);
+@@ -1052,6 +1063,7 @@ static int ieee80211_stop_ap(struct wiph
+ ieee80211_free_keys(sdata);
+
+ sdata->vif.bss_conf.enable_beacon = false;
++ sdata->vif.bss_conf.ssid_len = 0;
+ clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
+ ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
+
+@@ -2416,9 +2428,22 @@ static int ieee80211_set_bitrate_mask(st
+ }
+
+ for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
++ struct ieee80211_supported_band *sband = wiphy->bands[i];
++ int j;
++
+ sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
+ memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs,
+ sizeof(mask->control[i].mcs));
++
++ sdata->rc_has_mcs_mask[i] = false;
++ if (!sband)
++ continue;
++
++ for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
++ if (~sdata->rc_rateidx_mcs_mask[i][j]) {
++ sdata->rc_has_mcs_mask[i] = true;
++ break;
++ }
+ }
+
+ return 0;
+--- a/net/mac80211/chan.c
++++ b/net/mac80211/chan.c
+@@ -57,6 +57,22 @@ ieee80211_find_chanctx(struct ieee80211_
+ return NULL;
+ }
+
++static bool ieee80211_is_radar_required(struct ieee80211_local *local)
++{
++ struct ieee80211_sub_if_data *sdata;
++
++ rcu_read_lock();
++ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
++ if (sdata->radar_required) {
++ rcu_read_unlock();
++ return true;
++ }
++ }
++ rcu_read_unlock();
++
++ return false;
++}
++
+ static struct ieee80211_chanctx *
+ ieee80211_new_chanctx(struct ieee80211_local *local,
+ const struct cfg80211_chan_def *chandef,
+@@ -76,6 +92,9 @@ ieee80211_new_chanctx(struct ieee80211_l
+ ctx->conf.rx_chains_static = 1;
+ ctx->conf.rx_chains_dynamic = 1;
+ ctx->mode = mode;
++ ctx->conf.radar_enabled = ieee80211_is_radar_required(local);
++ if (!local->use_chanctx)
++ local->hw.conf.radar_enabled = ctx->conf.radar_enabled;
+
+ /* acquire mutex to prevent idle from changing */
+ mutex_lock(&local->mtx);
+@@ -110,6 +129,7 @@ ieee80211_new_chanctx(struct ieee80211_l
+ static void ieee80211_free_chanctx(struct ieee80211_local *local,
+ struct ieee80211_chanctx *ctx)
+ {
++ bool check_single_channel = false;
+ lockdep_assert_held(&local->chanctx_mtx);
+
+ WARN_ON_ONCE(ctx->refcount != 0);
+@@ -119,6 +139,14 @@ static void ieee80211_free_chanctx(struc
+ chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
+ chandef->center_freq1 = chandef->chan->center_freq;
+ chandef->center_freq2 = 0;
++
++ /* NOTE: Disabling radar is only valid here for
++ * single channel context. To be sure, check it ...
++ */
++ if (local->hw.conf.radar_enabled)
++ check_single_channel = true;
++ local->hw.conf.radar_enabled = false;
++
+ ieee80211_hw_config(local, 0);
+ } else {
+ drv_remove_chanctx(local, ctx);
+@@ -127,6 +155,9 @@ static void ieee80211_free_chanctx(struc
+ list_del_rcu(&ctx->list);
+ kfree_rcu(ctx, rcu_head);
+
++ /* throw a warning if this wasn't the only channel context. */
++ WARN_ON(check_single_channel && !list_empty(&local->chanctx_list));
++
+ mutex_lock(&local->mtx);
+ ieee80211_recalc_idle(local);
+ mutex_unlock(&local->mtx);
+@@ -238,19 +269,11 @@ static void __ieee80211_vif_release_chan
+ void ieee80211_recalc_radar_chanctx(struct ieee80211_local *local,
+ struct ieee80211_chanctx *chanctx)
+ {
+- struct ieee80211_sub_if_data *sdata;
+- bool radar_enabled = false;
++ bool radar_enabled;
+
+ lockdep_assert_held(&local->chanctx_mtx);
+
+- rcu_read_lock();
+- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+- if (sdata->radar_required) {
+- radar_enabled = true;
+- break;
+- }
+- }
+- rcu_read_unlock();
++ radar_enabled = ieee80211_is_radar_required(local);
+
+ if (radar_enabled == chanctx->conf.radar_enabled)
+ return;
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
-@@ -65,11 +65,11 @@ static ssize_t sta_flags_read(struct fil
+@@ -66,11 +66,11 @@ static ssize_t sta_flags_read(struct fil
test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : ""
int res = scnprintf(buf, sizeof(buf),
TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL),
TEST(UAPSD), TEST(SP), TEST(TDLS_PEER),
TEST(TDLS_PEER_AUTH), TEST(4ADDR_EVENT),
---- a/net/mac80211/iface.c
-+++ b/net/mac80211/iface.c
-@@ -78,7 +78,7 @@ void ieee80211_recalc_txpower(struct iee
- ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_TXPOWER);
+--- a/net/mac80211/ibss.c
++++ b/net/mac80211/ibss.c
+@@ -209,6 +209,8 @@ static void __ieee80211_sta_join_ibss(st
+ sdata->vif.bss_conf.enable_beacon = true;
+ sdata->vif.bss_conf.beacon_int = beacon_int;
+ sdata->vif.bss_conf.basic_rates = basic_rates;
++ sdata->vif.bss_conf.ssid_len = ifibss->ssid_len;
++ memcpy(sdata->vif.bss_conf.ssid, ifibss->ssid, ifibss->ssid_len);
+ bss_change = BSS_CHANGED_BEACON_INT;
+ bss_change |= ieee80211_reset_erp_info(sdata);
+ bss_change |= BSS_CHANGED_BSSID;
+@@ -217,6 +219,7 @@ static void __ieee80211_sta_join_ibss(st
+ bss_change |= BSS_CHANGED_BASIC_RATES;
+ bss_change |= BSS_CHANGED_HT;
+ bss_change |= BSS_CHANGED_IBSS;
++ bss_change |= BSS_CHANGED_SSID;
+
+ /*
+ * In 5 GHz/802.11a, we can always use short slot time.
+@@ -911,7 +914,7 @@ void ieee80211_rx_mgmt_probe_beacon(stru
+ return;
+
+ ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen,
+- &elems);
++ false, &elems);
+
+ ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems);
}
+@@ -1159,6 +1162,7 @@ int ieee80211_ibss_leave(struct ieee8021
+ sdata->vif.bss_conf.ibss_joined = false;
+ sdata->vif.bss_conf.ibss_creator = false;
+ sdata->vif.bss_conf.enable_beacon = false;
++ sdata->vif.bss_conf.ssid_len = 0;
+ clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
+ ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
+ BSS_CHANGED_IBSS);
+--- a/net/mac80211/ieee80211_i.h
++++ b/net/mac80211/ieee80211_i.h
+@@ -156,6 +156,7 @@ struct ieee80211_tx_data {
+ struct ieee80211_sub_if_data *sdata;
+ struct sta_info *sta;
+ struct ieee80211_key *key;
++ struct ieee80211_tx_rate rate;
--static u32 ieee80211_idle_off(struct ieee80211_local *local)
-+u32 ieee80211_idle_off(struct ieee80211_local *local)
- {
- if (!(local->hw.conf.flags & IEEE80211_CONF_IDLE))
- return 0;
-@@ -107,7 +107,7 @@ void ieee80211_recalc_idle(struct ieee80
+ unsigned int flags;
+ };
+@@ -740,6 +741,8 @@ struct ieee80211_sub_if_data {
- lockdep_assert_held(&local->mtx);
+ /* bitmap of allowed (non-MCS) rate indexes for rate control */
+ u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
++
++ bool rc_has_mcs_mask[IEEE80211_NUM_BANDS];
+ u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
+
+ union {
+@@ -1025,7 +1028,7 @@ struct ieee80211_local {
+ enum mac80211_scan_state next_scan_state;
+ struct delayed_work scan_work;
+ struct ieee80211_sub_if_data __rcu *scan_sdata;
+- struct ieee80211_channel *csa_channel;
++ struct cfg80211_chan_def csa_chandef;
+ /* For backward compatibility only -- do not use */
+ struct cfg80211_chan_def _oper_chandef;
+
+@@ -1184,10 +1187,13 @@ struct ieee802_11_elems {
+ const u8 *perr;
+ const struct ieee80211_rann_ie *rann;
+ const struct ieee80211_channel_sw_ie *ch_switch_ie;
++ const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
++ const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
+ const u8 *country_elem;
+ const u8 *pwr_constr_elem;
+ const struct ieee80211_timeout_interval_ie *timeout_int;
+ const u8 *opmode_notif;
++ const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
+
+ /* length of them, respectively */
+ u8 ssid_len;
+@@ -1258,10 +1264,6 @@ void ieee80211_recalc_ps_vif(struct ieee
+ int ieee80211_max_network_latency(struct notifier_block *nb,
+ unsigned long data, void *dummy);
+ int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
+-void
+-ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
+- const struct ieee80211_channel_sw_ie *sw_elem,
+- struct ieee80211_bss *bss, u64 timestamp);
+ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
+ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb);
+@@ -1499,13 +1501,13 @@ static inline void ieee80211_tx_skb(stru
+ ieee80211_tx_skb_tid(sdata, skb, 7);
+ }
-- active = !list_empty(&local->chanctx_list);
-+ active = !list_empty(&local->chanctx_list) || local->monitors;
+-u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
++u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, bool action,
+ struct ieee802_11_elems *elems,
+ u64 filter, u32 crc);
+-static inline void ieee802_11_parse_elems(u8 *start, size_t len,
++static inline void ieee802_11_parse_elems(u8 *start, size_t len, bool action,
+ struct ieee802_11_elems *elems)
+ {
+- ieee802_11_parse_elems_crc(start, len, elems, 0, 0);
++ ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
+ }
- if (!local->ops->remain_on_channel) {
- list_for_each_entry(roc, &local->roc_list, list) {
-@@ -436,7 +436,6 @@ int ieee80211_do_open(struct wireless_de
+ u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
+--- a/net/mac80211/iface.c
++++ b/net/mac80211/iface.c
+@@ -450,7 +450,6 @@ int ieee80211_do_open(struct wireless_de
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
struct net_device *dev = wdev->netdev;
struct ieee80211_local *local = sdata->local;
u32 changed = 0;
int res;
u32 hw_reconf_flags = 0;
-@@ -541,6 +540,9 @@ int ieee80211_do_open(struct wireless_de
-
- ieee80211_adjust_monitor_flags(sdata, 1);
- ieee80211_configure_filter(local);
-+ mutex_lock(&local->mtx);
-+ ieee80211_recalc_idle(local);
-+ mutex_unlock(&local->mtx);
-
- netif_carrier_on(dev);
- break;
-@@ -595,30 +597,8 @@ int ieee80211_do_open(struct wireless_de
+@@ -609,30 +608,8 @@ int ieee80211_do_open(struct wireless_de
set_bit(SDATA_STATE_RUNNING, &sdata->state);
/*
* set_multicast_list will be invoked by the networking core
-@@ -817,6 +797,9 @@ static void ieee80211_do_stop(struct iee
-
- ieee80211_adjust_monitor_flags(sdata, -1);
- ieee80211_configure_filter(local);
-+ mutex_lock(&local->mtx);
-+ ieee80211_recalc_idle(local);
-+ mutex_unlock(&local->mtx);
- break;
- case NL80211_IFTYPE_P2P_DEVICE:
- /* relies on synchronize_rcu() below */
-@@ -1022,6 +1005,72 @@ static void ieee80211_if_setup(struct ne
+@@ -1092,6 +1069,74 @@ static void ieee80211_if_setup(struct ne
dev->destructor = free_netdev;
}
+ u32 rates = 0;
+ u16 stype;
+ bool new = false;
-+ enum ieee80211_band band = local->hw.conf.channel->band;
-+ struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
++ enum ieee80211_band band;
++ struct ieee80211_supported_band *sband;
+
+ rx_status = IEEE80211_SKB_RXCB(skb);
++ band = rx_status->band;
++ sband = local->hw.wiphy->bands[band];
+ mgmt = (struct ieee80211_mgmt *) skb->data;
+ stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE;
+
+ return;
+
+ ieee802_11_parse_elems(mgmt->u.probe_resp.variable,
-+ skb->len - baselen, &elems);
++ skb->len - baselen, false, &elems);
+
+ rates = ieee80211_sta_get_rates(local, &elems, band, NULL);
+
+ }
+
+ sta->last_rx = jiffies;
-+ sta->sta.supp_rates[local->hw.conf.channel->band] = rates;
++ sta->sta.supp_rates[band] = rates;
+
+ if (elems.ht_cap_elem)
+ ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
static void ieee80211_iface_work(struct work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
-@@ -1126,6 +1175,9 @@ static void ieee80211_iface_work(struct
+@@ -1196,6 +1241,9 @@ static void ieee80211_iface_work(struct
break;
ieee80211_mesh_rx_queued_mgmt(sdata, skb);
break;
default:
WARN(1, "frame for unexpected interface type");
break;
+--- a/net/mac80211/main.c
++++ b/net/mac80211/main.c
+@@ -674,6 +674,7 @@ int ieee80211_register_hw(struct ieee802
+ int channels, max_bitrates;
+ bool supp_ht, supp_vht;
+ netdev_features_t feature_whitelist;
++ struct cfg80211_chan_def dflt_chandef = {};
+ static const u32 cipher_suites[] = {
+ /* keep WEP first, it may be removed below */
+ WLAN_CIPHER_SUITE_WEP40,
+@@ -751,19 +752,19 @@ int ieee80211_register_hw(struct ieee802
+ sband = local->hw.wiphy->bands[band];
+ if (!sband)
+ continue;
+- if (!local->use_chanctx && !local->_oper_chandef.chan) {
++
++ if (!dflt_chandef.chan) {
++ cfg80211_chandef_create(&dflt_chandef,
++ &sband->channels[0],
++ NL80211_CHAN_NO_HT);
+ /* init channel we're on */
+- struct cfg80211_chan_def chandef = {
+- .chan = &sband->channels[0],
+- .width = NL80211_CHAN_NO_HT,
+- .center_freq1 = sband->channels[0].center_freq,
+- .center_freq2 = 0
+- };
+- local->hw.conf.chandef = local->_oper_chandef = chandef;
++ if (!local->use_chanctx && !local->_oper_chandef.chan) {
++ local->hw.conf.chandef = dflt_chandef;
++ local->_oper_chandef = dflt_chandef;
++ }
++ local->monitor_chandef = dflt_chandef;
+ }
+- cfg80211_chandef_create(&local->monitor_chandef,
+- &sband->channels[0],
+- NL80211_CHAN_NO_HT);
++
+ channels += sband->n_channels;
+
+ if (max_bitrates < sband->n_bitrates)
+--- a/net/mac80211/mesh.c
++++ b/net/mac80211/mesh.c
+@@ -838,7 +838,7 @@ ieee80211_mesh_rx_probe_req(struct ieee8
+ if (baselen > len)
+ return;
+
+- ieee802_11_parse_elems(pos, len - baselen, &elems);
++ ieee802_11_parse_elems(pos, len - baselen, false, &elems);
+
+ /* 802.11-2012 10.1.4.3.2 */
+ if ((!ether_addr_equal(mgmt->da, sdata->vif.addr) &&
+@@ -899,7 +899,7 @@ static void ieee80211_mesh_rx_bcn_presp(
+ return;
+
+ ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen,
+- &elems);
++ false, &elems);
+
+ /* ignore non-mesh or secure / unsecure mismatch */
+ if ((!elems.mesh_id || !elems.mesh_config) ||
+--- a/net/mac80211/mesh_hwmp.c
++++ b/net/mac80211/mesh_hwmp.c
+@@ -880,7 +880,7 @@ void mesh_rx_path_sel_frame(struct ieee8
+
+ baselen = (u8 *) mgmt->u.action.u.mesh_action.variable - (u8 *) mgmt;
+ ieee802_11_parse_elems(mgmt->u.action.u.mesh_action.variable,
+- len - baselen, &elems);
++ len - baselen, false, &elems);
+
+ if (elems.preq) {
+ if (elems.preq_len != 37)
+--- a/net/mac80211/mesh_plink.c
++++ b/net/mac80211/mesh_plink.c
+@@ -544,8 +544,8 @@ static void mesh_plink_timer(unsigned lo
+ return;
+ }
+ mpl_dbg(sta->sdata,
+- "Mesh plink timer for %pM fired on state %d\n",
+- sta->sta.addr, sta->plink_state);
++ "Mesh plink timer for %pM fired on state %s\n",
++ sta->sta.addr, mplstates[sta->plink_state]);
+ reason = 0;
+ llid = sta->llid;
+ plid = sta->plid;
+@@ -687,7 +687,7 @@ void mesh_rx_plink_frame(struct ieee8021
+ baseaddr += 4;
+ baselen += 4;
+ }
+- ieee802_11_parse_elems(baseaddr, len - baselen, &elems);
++ ieee802_11_parse_elems(baseaddr, len - baselen, true, &elems);
+
+ if (!elems.peering) {
+ mpl_dbg(sdata,
+--- a/net/mac80211/mlme.c
++++ b/net/mac80211/mlme.c
+@@ -289,6 +289,8 @@ ieee80211_determine_chantype(struct ieee
+ } else {
+ /* 40 MHz (and 80 MHz) must be supported for VHT */
+ ret = IEEE80211_STA_DISABLE_VHT;
++ /* also mark 40 MHz disabled */
++ ret |= IEEE80211_STA_DISABLE_40MHZ;
+ goto out;
+ }
+
+@@ -303,12 +305,6 @@ ieee80211_determine_chantype(struct ieee
+ channel->band);
+ vht_chandef.center_freq2 = 0;
+
+- if (vht_oper->center_freq_seg2_idx)
+- vht_chandef.center_freq2 =
+- ieee80211_channel_to_frequency(
+- vht_oper->center_freq_seg2_idx,
+- channel->band);
+-
+ switch (vht_oper->chan_width) {
+ case IEEE80211_VHT_CHANWIDTH_USE_HT:
+ vht_chandef.width = chandef->width;
+@@ -321,6 +317,10 @@ ieee80211_determine_chantype(struct ieee
+ break;
+ case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
+ vht_chandef.width = NL80211_CHAN_WIDTH_80P80;
++ vht_chandef.center_freq2 =
++ ieee80211_channel_to_frequency(
++ vht_oper->center_freq_seg2_idx,
++ channel->band);
+ break;
+ default:
+ if (verbose)
+@@ -604,7 +604,6 @@ static void ieee80211_add_vht_ie(struct
+ u8 *pos;
+ u32 cap;
+ struct ieee80211_sta_vht_cap vht_cap;
+- int i;
+
+ BUILD_BUG_ON(sizeof(vht_cap) != sizeof(sband->vht_cap));
+
+@@ -632,37 +631,6 @@ static void ieee80211_add_vht_ie(struct
+ cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)))
+ cap &= ~IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE;
+
+- if (!(ap_vht_cap->vht_cap_info &
+- cpu_to_le32(IEEE80211_VHT_CAP_TXSTBC)))
+- cap &= ~(IEEE80211_VHT_CAP_RXSTBC_1 |
+- IEEE80211_VHT_CAP_RXSTBC_3 |
+- IEEE80211_VHT_CAP_RXSTBC_4);
+-
+- for (i = 0; i < 8; i++) {
+- int shift = i * 2;
+- u16 mask = IEEE80211_VHT_MCS_NOT_SUPPORTED << shift;
+- u16 ap_mcs, our_mcs;
+-
+- ap_mcs = (le16_to_cpu(ap_vht_cap->supp_mcs.tx_mcs_map) &
+- mask) >> shift;
+- our_mcs = (le16_to_cpu(vht_cap.vht_mcs.rx_mcs_map) &
+- mask) >> shift;
+-
+- if (our_mcs == IEEE80211_VHT_MCS_NOT_SUPPORTED)
+- continue;
+-
+- switch (ap_mcs) {
+- default:
+- if (our_mcs <= ap_mcs)
+- break;
+- /* fall through */
+- case IEEE80211_VHT_MCS_NOT_SUPPORTED:
+- vht_cap.vht_mcs.rx_mcs_map &= cpu_to_le16(~mask);
+- vht_cap.vht_mcs.rx_mcs_map |=
+- cpu_to_le16(ap_mcs << shift);
+- }
+- }
+-
+ /* reserve and fill IE */
+ pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2);
+ ieee80211_ie_build_vht_cap(pos, &vht_cap, cap);
+@@ -998,16 +966,7 @@ static void ieee80211_chswitch_work(stru
+ if (!ifmgd->associated)
+ goto out;
+
+- /*
+- * FIXME: Here we are downgrading to NL80211_CHAN_WIDTH_20_NOHT
+- * and don't adjust our ht/vht settings
+- * This is wrong - we should behave according to the CSA params
+- */
+- local->_oper_chandef.chan = local->csa_channel;
+- local->_oper_chandef.width = NL80211_CHAN_WIDTH_20_NOHT;
+- local->_oper_chandef.center_freq1 =
+- local->_oper_chandef.chan->center_freq;
+- local->_oper_chandef.center_freq2 = 0;
++ local->_oper_chandef = local->csa_chandef;
+
+ if (!local->ops->channel_switch) {
+ /* call "hw_config" only if doing sw channel switch */
+@@ -1054,56 +1013,193 @@ static void ieee80211_chswitch_timer(uns
+ ieee80211_queue_work(&sdata->local->hw, &sdata->u.mgd.chswitch_work);
+ }
+
+-void
++static void
+ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
+- const struct ieee80211_channel_sw_ie *sw_elem,
+- struct ieee80211_bss *bss, u64 timestamp)
++ u64 timestamp, struct ieee802_11_elems *elems)
+ {
+- struct cfg80211_bss *cbss =
+- container_of((void *)bss, struct cfg80211_bss, priv);
+- struct ieee80211_channel *new_ch;
++ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+- int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num,
+- cbss->channel->band);
++ struct cfg80211_bss *cbss = ifmgd->associated;
++ struct ieee80211_bss *bss;
+ struct ieee80211_chanctx *chanctx;
++ enum ieee80211_band new_band;
++ int new_freq;
++ u8 new_chan_no;
++ u8 count;
++ u8 mode;
++ struct ieee80211_channel *new_chan;
++ struct cfg80211_chan_def new_chandef = {};
++ struct cfg80211_chan_def new_vht_chandef = {};
++ const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
++ const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
++ int secondary_channel_offset = -1;
+
+ ASSERT_MGD_MTX(ifmgd);
+
+- if (!ifmgd->associated)
++ if (!cbss)
+ return;
+
+- if (sdata->local->scanning)
++ if (local->scanning)
+ return;
+
+- /* Disregard subsequent beacons if we are already running a timer
+- processing a CSA */
+-
++ /* disregard subsequent announcements if we are already processing */
+ if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
+ return;
+
+- new_ch = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
+- if (!new_ch || new_ch->flags & IEEE80211_CHAN_DISABLED) {
++ sec_chan_offs = elems->sec_chan_offs;
++ wide_bw_chansw_ie = elems->wide_bw_chansw_ie;
++
++ if (ifmgd->flags & (IEEE80211_STA_DISABLE_HT |
++ IEEE80211_STA_DISABLE_40MHZ)) {
++ sec_chan_offs = NULL;
++ wide_bw_chansw_ie = NULL;
++ }
++
++ if (ifmgd->flags & IEEE80211_STA_DISABLE_VHT)
++ wide_bw_chansw_ie = NULL;
++
++ if (elems->ext_chansw_ie) {
++ if (!ieee80211_operating_class_to_band(
++ elems->ext_chansw_ie->new_operating_class,
++ &new_band)) {
++ sdata_info(sdata,
++ "cannot understand ECSA IE operating class %d, disconnecting\n",
++ elems->ext_chansw_ie->new_operating_class);
++ ieee80211_queue_work(&local->hw,
++ &ifmgd->csa_connection_drop_work);
++ }
++ new_chan_no = elems->ext_chansw_ie->new_ch_num;
++ count = elems->ext_chansw_ie->count;
++ mode = elems->ext_chansw_ie->mode;
++ } else if (elems->ch_switch_ie) {
++ new_band = cbss->channel->band;
++ new_chan_no = elems->ch_switch_ie->new_ch_num;
++ count = elems->ch_switch_ie->count;
++ mode = elems->ch_switch_ie->mode;
++ } else {
++ /* nothing here we understand */
++ return;
++ }
++
++ bss = (void *)cbss->priv;
++
++ new_freq = ieee80211_channel_to_frequency(new_chan_no, new_band);
++ new_chan = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
++ if (!new_chan || new_chan->flags & IEEE80211_CHAN_DISABLED) {
+ sdata_info(sdata,
+ "AP %pM switches to unsupported channel (%d MHz), disconnecting\n",
+ ifmgd->associated->bssid, new_freq);
+- ieee80211_queue_work(&sdata->local->hw,
++ ieee80211_queue_work(&local->hw,
++ &ifmgd->csa_connection_drop_work);
++ return;
++ }
++
++ if (sec_chan_offs) {
++ secondary_channel_offset = sec_chan_offs->sec_chan_offs;
++ } else if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) {
++ /* if HT is enabled and the IE not present, it's still HT */
++ secondary_channel_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
++ }
++
++ switch (secondary_channel_offset) {
++ default:
++ /* secondary_channel_offset was present but is invalid */
++ case IEEE80211_HT_PARAM_CHA_SEC_NONE:
++ cfg80211_chandef_create(&new_chandef, new_chan,
++ NL80211_CHAN_HT20);
++ break;
++ case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
++ cfg80211_chandef_create(&new_chandef, new_chan,
++ NL80211_CHAN_HT40PLUS);
++ break;
++ case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
++ cfg80211_chandef_create(&new_chandef, new_chan,
++ NL80211_CHAN_HT40MINUS);
++ break;
++ case -1:
++ cfg80211_chandef_create(&new_chandef, new_chan,
++ NL80211_CHAN_NO_HT);
++ break;
++ }
++
++ if (wide_bw_chansw_ie) {
++ new_vht_chandef.chan = new_chan;
++ new_vht_chandef.center_freq1 =
++ ieee80211_channel_to_frequency(
++ wide_bw_chansw_ie->new_center_freq_seg0,
++ new_band);
++
++ switch (wide_bw_chansw_ie->new_channel_width) {
++ default:
++ /* hmmm, ignore VHT and use HT if present */
++ case IEEE80211_VHT_CHANWIDTH_USE_HT:
++ new_vht_chandef.chan = NULL;
++ break;
++ case IEEE80211_VHT_CHANWIDTH_80MHZ:
++ new_vht_chandef.width = NL80211_CHAN_WIDTH_80;
++ break;
++ case IEEE80211_VHT_CHANWIDTH_160MHZ:
++ new_vht_chandef.width = NL80211_CHAN_WIDTH_160;
++ break;
++ case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
++ /* field is otherwise reserved */
++ new_vht_chandef.center_freq2 =
++ ieee80211_channel_to_frequency(
++ wide_bw_chansw_ie->new_center_freq_seg1,
++ new_band);
++ new_vht_chandef.width = NL80211_CHAN_WIDTH_80P80;
++ break;
++ }
++ if (ifmgd->flags & IEEE80211_STA_DISABLE_80P80MHZ &&
++ new_vht_chandef.width == NL80211_CHAN_WIDTH_80P80)
++ chandef_downgrade(&new_vht_chandef);
++ if (ifmgd->flags & IEEE80211_STA_DISABLE_160MHZ &&
++ new_vht_chandef.width == NL80211_CHAN_WIDTH_160)
++ chandef_downgrade(&new_vht_chandef);
++ if (ifmgd->flags & IEEE80211_STA_DISABLE_40MHZ &&
++ new_vht_chandef.width > NL80211_CHAN_WIDTH_20)
++ chandef_downgrade(&new_vht_chandef);
++ }
++
++ /* if VHT data is there validate & use it */
++ if (new_vht_chandef.chan) {
++ if (!cfg80211_chandef_compatible(&new_vht_chandef,
++ &new_chandef)) {
++ sdata_info(sdata,
++ "AP %pM CSA has inconsistent channel data, disconnecting\n",
++ ifmgd->associated->bssid);
++ ieee80211_queue_work(&local->hw,
++ &ifmgd->csa_connection_drop_work);
++ return;
++ }
++ new_chandef = new_vht_chandef;
++ }
++
++ if (!cfg80211_chandef_usable(local->hw.wiphy, &new_chandef,
++ IEEE80211_CHAN_DISABLED)) {
++ sdata_info(sdata,
++ "AP %pM switches to unsupported channel (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n",
++ ifmgd->associated->bssid, new_freq,
++ new_chandef.width, new_chandef.center_freq1,
++ new_chandef.center_freq2);
++ ieee80211_queue_work(&local->hw,
+ &ifmgd->csa_connection_drop_work);
+ return;
+ }
+
+ ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
+
+- if (sdata->local->use_chanctx) {
++ if (local->use_chanctx) {
+ sdata_info(sdata,
+ "not handling channel switch with channel contexts\n");
+- ieee80211_queue_work(&sdata->local->hw,
++ ieee80211_queue_work(&local->hw,
+ &ifmgd->csa_connection_drop_work);
+ return;
+ }
+
+- mutex_lock(&sdata->local->chanctx_mtx);
++ mutex_lock(&local->chanctx_mtx);
+ if (WARN_ON(!rcu_access_pointer(sdata->vif.chanctx_conf))) {
+- mutex_unlock(&sdata->local->chanctx_mtx);
++ mutex_unlock(&local->chanctx_mtx);
+ return;
+ }
+ chanctx = container_of(rcu_access_pointer(sdata->vif.chanctx_conf),
+@@ -1111,40 +1207,39 @@ ieee80211_sta_process_chanswitch(struct
+ if (chanctx->refcount > 1) {
+ sdata_info(sdata,
+ "channel switch with multiple interfaces on the same channel, disconnecting\n");
+- ieee80211_queue_work(&sdata->local->hw,
++ ieee80211_queue_work(&local->hw,
+ &ifmgd->csa_connection_drop_work);
+- mutex_unlock(&sdata->local->chanctx_mtx);
++ mutex_unlock(&local->chanctx_mtx);
+ return;
+ }
+- mutex_unlock(&sdata->local->chanctx_mtx);
++ mutex_unlock(&local->chanctx_mtx);
+
+- sdata->local->csa_channel = new_ch;
++ local->csa_chandef = new_chandef;
+
+- if (sw_elem->mode)
+- ieee80211_stop_queues_by_reason(&sdata->local->hw,
++ if (mode)
++ ieee80211_stop_queues_by_reason(&local->hw,
+ IEEE80211_MAX_QUEUE_MAP,
+ IEEE80211_QUEUE_STOP_REASON_CSA);
+
+- if (sdata->local->ops->channel_switch) {
++ if (local->ops->channel_switch) {
+ /* use driver's channel switch callback */
+ struct ieee80211_channel_switch ch_switch = {
+ .timestamp = timestamp,
+- .block_tx = sw_elem->mode,
+- .channel = new_ch,
+- .count = sw_elem->count,
++ .block_tx = mode,
++ .chandef = new_chandef,
++ .count = count,
+ };
+
+- drv_channel_switch(sdata->local, &ch_switch);
++ drv_channel_switch(local, &ch_switch);
+ return;
+ }
+
+ /* channel switch handled in software */
+- if (sw_elem->count <= 1)
+- ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work);
++ if (count <= 1)
++ ieee80211_queue_work(&local->hw, &ifmgd->chswitch_work);
+ else
+ mod_timer(&ifmgd->chswitch_timer,
+- TU_TO_EXP_TIME(sw_elem->count *
+- cbss->beacon_interval));
++ TU_TO_EXP_TIME(count * cbss->beacon_interval));
+ }
+
+ static u32 ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
+@@ -2120,7 +2215,6 @@ void ieee80211_beacon_loss(struct ieee80
+
+ trace_api_beacon_loss(sdata);
+
+- WARN_ON(hw->flags & IEEE80211_HW_CONNECTION_MONITOR);
+ sdata->u.mgd.connection_loss = false;
+ ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work);
+ }
+@@ -2170,7 +2264,7 @@ static void ieee80211_auth_challenge(str
+ u32 tx_flags = 0;
+
+ pos = mgmt->u.auth.variable;
+- ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
++ ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), false, &elems);
+ if (!elems.challenge)
+ return;
+ auth_data->expected_transaction = 4;
+@@ -2435,7 +2529,7 @@ static bool ieee80211_assoc_success(stru
+ }
+
+ pos = mgmt->u.assoc_resp.variable;
+- ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
++ ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), false, &elems);
+
+ if (!elems.supp_rates) {
+ sdata_info(sdata, "no SuppRates element in AssocResp\n");
+@@ -2604,7 +2698,7 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee
+ capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14))));
+
+ pos = mgmt->u.assoc_resp.variable;
+- ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
++ ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), false, &elems);
+
+ if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY &&
+ elems.timeout_int &&
+@@ -2659,6 +2753,8 @@ static void ieee80211_rx_bss_info(struct
+ struct ieee80211_channel *channel;
+ bool need_ps = false;
+
++ lockdep_assert_held(&sdata->u.mgd.mtx);
++
+ if ((sdata->u.mgd.associated &&
+ ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid)) ||
+ (sdata->u.mgd.assoc_data &&
+@@ -2689,7 +2785,8 @@ static void ieee80211_rx_bss_info(struct
+ if (bss)
+ ieee80211_rx_bss_put(local, bss);
+
+- if (!sdata->u.mgd.associated)
++ if (!sdata->u.mgd.associated ||
++ !ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid))
+ return;
+
+ if (need_ps) {
+@@ -2698,10 +2795,8 @@ static void ieee80211_rx_bss_info(struct
+ mutex_unlock(&local->iflist_mtx);
+ }
+
+- if (elems->ch_switch_ie &&
+- memcmp(mgmt->bssid, sdata->u.mgd.associated->bssid, ETH_ALEN) == 0)
+- ieee80211_sta_process_chanswitch(sdata, elems->ch_switch_ie,
+- bss, rx_status->mactime);
++ ieee80211_sta_process_chanswitch(sdata, rx_status->mactime, elems);
++
+ }
+
+
+@@ -2726,7 +2821,7 @@ static void ieee80211_rx_mgmt_probe_resp
+ return;
+
+ ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen,
+- &elems);
++ false, &elems);
+
+ ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems);
+
+@@ -2809,7 +2904,7 @@ ieee80211_rx_mgmt_beacon(struct ieee8021
+ if (ifmgd->assoc_data && ifmgd->assoc_data->need_beacon &&
+ ether_addr_equal(mgmt->bssid, ifmgd->assoc_data->bss->bssid)) {
+ ieee802_11_parse_elems(mgmt->u.beacon.variable,
+- len - baselen, &elems);
++ len - baselen, false, &elems);
+
+ ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems);
+ ifmgd->assoc_data->have_beacon = true;
+@@ -2919,7 +3014,7 @@ ieee80211_rx_mgmt_beacon(struct ieee8021
+
+ ncrc = crc32_be(0, (void *)&mgmt->u.beacon.beacon_int, 4);
+ ncrc = ieee802_11_parse_elems_crc(mgmt->u.beacon.variable,
+- len - baselen, &elems,
++ len - baselen, false, &elems,
+ care_about_ies, ncrc);
+
+ if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) {
+@@ -3066,6 +3161,8 @@ void ieee80211_sta_rx_queued_mgmt(struct
+ enum rx_mgmt_action rma = RX_MGMT_NONE;
+ u8 deauth_buf[IEEE80211_DEAUTH_FRAME_LEN];
+ u16 fc;
++ struct ieee802_11_elems elems;
++ int ies_len;
+
+ rx_status = (struct ieee80211_rx_status *) skb->cb;
+ mgmt = (struct ieee80211_mgmt *) skb->data;
+@@ -3095,14 +3192,48 @@ void ieee80211_sta_rx_queued_mgmt(struct
+ rma = ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len, &bss);
+ break;
+ case IEEE80211_STYPE_ACTION:
+- switch (mgmt->u.action.category) {
+- case WLAN_CATEGORY_SPECTRUM_MGMT:
++ if (mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT) {
++ ies_len = skb->len -
++ offsetof(struct ieee80211_mgmt,
++ u.action.u.chan_switch.variable);
++
++ if (ies_len < 0)
++ break;
++
++ ieee802_11_parse_elems(
++ mgmt->u.action.u.chan_switch.variable,
++ ies_len, true, &elems);
++
++ if (elems.parse_error)
++ break;
++
+ ieee80211_sta_process_chanswitch(sdata,
+- &mgmt->u.action.u.chan_switch.sw_elem,
+- (void *)ifmgd->associated->priv,
+- rx_status->mactime);
+- break;
++ rx_status->mactime,
++ &elems);
++ } else if (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) {
++ ies_len = skb->len -
++ offsetof(struct ieee80211_mgmt,
++ u.action.u.ext_chan_switch.variable);
++
++ if (ies_len < 0)
++ break;
++
++ ieee802_11_parse_elems(
++ mgmt->u.action.u.ext_chan_switch.variable,
++ ies_len, true, &elems);
++
++ if (elems.parse_error)
++ break;
++
++ /* for the handling code pretend this was also an IE */
++ elems.ext_chansw_ie =
++ &mgmt->u.action.u.ext_chan_switch.data;
++
++ ieee80211_sta_process_chanswitch(sdata,
++ rx_status->mactime,
++ &elems);
+ }
++ break;
+ }
+ mutex_unlock(&ifmgd->mtx);
+
+--- a/net/mac80211/pm.c
++++ b/net/mac80211/pm.c
+@@ -38,8 +38,8 @@ int __ieee80211_suspend(struct ieee80211
+ IEEE80211_MAX_QUEUE_MAP,
+ IEEE80211_QUEUE_STOP_REASON_SUSPEND);
+
+- /* flush out all packets */
+- synchronize_net();
++ /* flush out all packets and station cleanup call_rcu()s */
++ rcu_barrier();
+
+ ieee80211_flush_queues(local, NULL);
+
+--- a/net/mac80211/rate.c
++++ b/net/mac80211/rate.c
+@@ -252,6 +252,25 @@ rate_lowest_non_cck_index(struct ieee802
+ return 0;
+ }
+
++static void __rate_control_send_low(struct ieee80211_hw *hw,
++ struct ieee80211_supported_band *sband,
++ struct ieee80211_sta *sta,
++ struct ieee80211_tx_info *info)
++{
++ if ((sband->band != IEEE80211_BAND_2GHZ) ||
++ !(info->flags & IEEE80211_TX_CTL_NO_CCK_RATE))
++ info->control.rates[0].idx = rate_lowest_index(sband, sta);
++ else
++ info->control.rates[0].idx =
++ rate_lowest_non_cck_index(sband, sta);
++
++ info->control.rates[0].count =
++ (info->flags & IEEE80211_TX_CTL_NO_ACK) ?
++ 1 : hw->max_rate_tries;
++
++ info->control.skip_table = 1;
++}
++
+
+ bool rate_control_send_low(struct ieee80211_sta *sta,
+ void *priv_sta,
+@@ -262,16 +281,8 @@ bool rate_control_send_low(struct ieee80
+ int mcast_rate;
+
+ if (!sta || !priv_sta || rc_no_data_or_no_ack_use_min(txrc)) {
+- if ((sband->band != IEEE80211_BAND_2GHZ) ||
+- !(info->flags & IEEE80211_TX_CTL_NO_CCK_RATE))
+- info->control.rates[0].idx =
+- rate_lowest_index(txrc->sband, sta);
+- else
+- info->control.rates[0].idx =
+- rate_lowest_non_cck_index(txrc->sband, sta);
+- info->control.rates[0].count =
+- (info->flags & IEEE80211_TX_CTL_NO_ACK) ?
+- 1 : txrc->hw->max_rate_tries;
++ __rate_control_send_low(txrc->hw, sband, sta, info);
++
+ if (!sta && txrc->bss) {
+ mcast_rate = txrc->bss_conf->mcast_rate[sband->band];
+ if (mcast_rate > 0) {
+@@ -355,7 +366,8 @@ static bool rate_idx_match_mcs_mask(stru
+
+
+ static void rate_idx_match_mask(struct ieee80211_tx_rate *rate,
+- struct ieee80211_tx_rate_control *txrc,
++ struct ieee80211_supported_band *sband,
++ enum nl80211_chan_width chan_width,
+ u32 mask,
+ u8 mcs_mask[IEEE80211_HT_MCS_MASK_LEN])
+ {
+@@ -375,27 +387,17 @@ static void rate_idx_match_mask(struct i
+ IEEE80211_TX_RC_USE_SHORT_PREAMBLE);
+ alt_rate.count = rate->count;
+ if (rate_idx_match_legacy_mask(&alt_rate,
+- txrc->sband->n_bitrates,
+- mask)) {
++ sband->n_bitrates, mask)) {
+ *rate = alt_rate;
+ return;
+ }
+ } else {
+- struct sk_buff *skb = txrc->skb;
+- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+- __le16 fc;
+-
+ /* handle legacy rates */
+- if (rate_idx_match_legacy_mask(rate, txrc->sband->n_bitrates,
+- mask))
++ if (rate_idx_match_legacy_mask(rate, sband->n_bitrates, mask))
+ return;
+
+ /* if HT BSS, and we handle a data frame, also try HT rates */
+- if (txrc->bss_conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
+- return;
+-
+- fc = hdr->frame_control;
+- if (!ieee80211_is_data(fc))
++ if (chan_width == NL80211_CHAN_WIDTH_20_NOHT)
+ return;
+
+ alt_rate.idx = 0;
+@@ -408,7 +410,7 @@ static void rate_idx_match_mask(struct i
+
+ alt_rate.flags |= IEEE80211_TX_RC_MCS;
+
+- if (txrc->bss_conf->chandef.width == NL80211_CHAN_WIDTH_40)
++ if (chan_width == NL80211_CHAN_WIDTH_40)
+ alt_rate.flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
+
+ if (rate_idx_match_mcs_mask(&alt_rate, mcs_mask)) {
+@@ -426,6 +428,228 @@ static void rate_idx_match_mask(struct i
+ */
+ }
+
++static void rate_fixup_ratelist(struct ieee80211_vif *vif,
++ struct ieee80211_supported_band *sband,
++ struct ieee80211_tx_info *info,
++ struct ieee80211_tx_rate *rates,
++ int max_rates)
++{
++ struct ieee80211_rate *rate;
++ bool inval = false;
++ int i;
++
++ /*
++ * Set up the RTS/CTS rate as the fastest basic rate
++ * that is not faster than the data rate unless there
++ * is no basic rate slower than the data rate, in which
++ * case we pick the slowest basic rate
++ *
++ * XXX: Should this check all retry rates?
++ */
++ if (!(rates[0].flags & IEEE80211_TX_RC_MCS)) {
++ u32 basic_rates = vif->bss_conf.basic_rates;
++ s8 baserate = basic_rates ? ffs(basic_rates - 1) : 0;
++
++ rate = &sband->bitrates[rates[0].idx];
++
++ for (i = 0; i < sband->n_bitrates; i++) {
++ /* must be a basic rate */
++ if (!(basic_rates & BIT(i)))
++ continue;
++ /* must not be faster than the data rate */
++ if (sband->bitrates[i].bitrate > rate->bitrate)
++ continue;
++ /* maximum */
++ if (sband->bitrates[baserate].bitrate <
++ sband->bitrates[i].bitrate)
++ baserate = i;
++ }
++
++ info->control.rts_cts_rate_idx = baserate;
++ }
++
++ for (i = 0; i < max_rates; i++) {
++ /*
++ * make sure there's no valid rate following
++ * an invalid one, just in case drivers don't
++ * take the API seriously to stop at -1.
++ */
++ if (inval) {
++ rates[i].idx = -1;
++ continue;
++ }
++ if (rates[i].idx < 0) {
++ inval = true;
++ continue;
++ }
++
++ /*
++ * For now assume MCS is already set up correctly, this
++ * needs to be fixed.
++ */
++ if (rates[i].flags & IEEE80211_TX_RC_MCS) {
++ WARN_ON(rates[i].idx > 76);
++
++ if (!(rates[i].flags & IEEE80211_TX_RC_USE_RTS_CTS) &&
++ info->control.use_cts_prot)
++ rates[i].flags |=
++ IEEE80211_TX_RC_USE_CTS_PROTECT;
++ continue;
++ }
++
++ if (rates[i].flags & IEEE80211_TX_RC_VHT_MCS) {
++ WARN_ON(ieee80211_rate_get_vht_mcs(&rates[i]) > 9);
++ continue;
++ }
++
++ /* set up RTS protection if desired */
++ if (info->control.use_rts) {
++ rates[i].flags |= IEEE80211_TX_RC_USE_RTS_CTS;
++ info->control.use_cts_prot = false;
++ }
++
++ /* RC is busted */
++ if (WARN_ON_ONCE(rates[i].idx >= sband->n_bitrates)) {
++ rates[i].idx = -1;
++ continue;
++ }
++
++ rate = &sband->bitrates[rates[i].idx];
++
++ /* set up short preamble */
++ if (info->control.short_preamble &&
++ rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
++ rates[i].flags |= IEEE80211_TX_RC_USE_SHORT_PREAMBLE;
++
++ /* set up G protection */
++ if (!(rates[i].flags & IEEE80211_TX_RC_USE_RTS_CTS) &&
++ info->control.use_cts_prot &&
++ rate->flags & IEEE80211_RATE_ERP_G)
++ rates[i].flags |= IEEE80211_TX_RC_USE_CTS_PROTECT;
++ }
++}
++
++
++static void rate_control_fill_sta_table(struct ieee80211_sta *sta,
++ struct ieee80211_tx_info *info,
++ struct ieee80211_tx_rate *rates,
++ int max_rates)
++{
++ struct ieee80211_sta_rates *ratetbl = NULL;
++ int i;
++
++ if (sta && !info->control.skip_table)
++ ratetbl = rcu_dereference(sta->rates);
++
++ /* Fill remaining rate slots with data from the sta rate table. */
++ max_rates = min_t(int, max_rates, IEEE80211_TX_RATE_TABLE_SIZE);
++ for (i = 0; i < max_rates; i++) {
++ if (i < ARRAY_SIZE(info->control.rates) &&
++ info->control.rates[i].idx >= 0 &&
++ info->control.rates[i].count) {
++ if (rates != info->control.rates)
++ rates[i] = info->control.rates[i];
++ } else if (ratetbl) {
++ rates[i].idx = ratetbl->rate[i].idx;
++ rates[i].flags = ratetbl->rate[i].flags;
++ if (info->control.use_rts)
++ rates[i].count = ratetbl->rate[i].count_rts;
++ else if (info->control.use_cts_prot)
++ rates[i].count = ratetbl->rate[i].count_cts;
++ else
++ rates[i].count = ratetbl->rate[i].count;
++ } else {
++ rates[i].idx = -1;
++ rates[i].count = 0;
++ }
++
++ if (rates[i].idx < 0 || !rates[i].count)
++ break;
++ }
++}
++
++static void rate_control_apply_mask(struct ieee80211_sub_if_data *sdata,
++ struct ieee80211_sta *sta,
++ struct ieee80211_supported_band *sband,
++ struct ieee80211_tx_info *info,
++ struct ieee80211_tx_rate *rates,
++ int max_rates)
++{
++ enum nl80211_chan_width chan_width;
++ u8 mcs_mask[IEEE80211_HT_MCS_MASK_LEN];
++ bool has_mcs_mask;
++ u32 mask;
++ int i;
++
++ /*
++ * Try to enforce the rateidx mask the user wanted. skip this if the
++ * default mask (allow all rates) is used to save some processing for
++ * the common case.
++ */
++ mask = sdata->rc_rateidx_mask[info->band];
++ has_mcs_mask = sdata->rc_has_mcs_mask[info->band];
++ if (mask == (1 << sband->n_bitrates) - 1 && !has_mcs_mask)
++ return;
++
++ if (has_mcs_mask)
++ memcpy(mcs_mask, sdata->rc_rateidx_mcs_mask[info->band],
++ sizeof(mcs_mask));
++ else
++ memset(mcs_mask, 0xff, sizeof(mcs_mask));
++
++ if (sta) {
++ /* Filter out rates that the STA does not support */
++ mask &= sta->supp_rates[info->band];
++ for (i = 0; i < sizeof(mcs_mask); i++)
++ mcs_mask[i] &= sta->ht_cap.mcs.rx_mask[i];
++ }
++
++ /*
++ * Make sure the rate index selected for each TX rate is
++ * included in the configured mask and change the rate indexes
++ * if needed.
++ */
++ chan_width = sdata->vif.bss_conf.chandef.width;
++ for (i = 0; i < max_rates; i++) {
++ /* Skip invalid rates */
++ if (rates[i].idx < 0)
++ break;
++
++ rate_idx_match_mask(&rates[i], sband, mask, chan_width,
++ mcs_mask);
++ }
++}
++
++void ieee80211_get_tx_rates(struct ieee80211_vif *vif,
++ struct ieee80211_sta *sta,
++ struct sk_buff *skb,
++ struct ieee80211_tx_rate *dest,
++ int max_rates)
++{
++ struct ieee80211_sub_if_data *sdata;
++ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
++ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
++ struct ieee80211_supported_band *sband;
++
++ rate_control_fill_sta_table(sta, info, dest, max_rates);
++
++ if (!vif)
++ return;
++
++ sdata = vif_to_sdata(vif);
++ sband = sdata->local->hw.wiphy->bands[info->band];
++
++ if (ieee80211_is_data(hdr->frame_control))
++ rate_control_apply_mask(sdata, sta, sband, info, dest, max_rates);
++
++ if (dest[0].idx < 0)
++ __rate_control_send_low(&sdata->local->hw, sband, sta, info);
++
++ if (sta)
++ rate_fixup_ratelist(vif, sband, info, dest, max_rates);
++}
++EXPORT_SYMBOL(ieee80211_get_tx_rates);
++
+ void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta,
+ struct ieee80211_tx_rate_control *txrc)
+@@ -435,8 +659,6 @@ void rate_control_get_rate(struct ieee80
+ struct ieee80211_sta *ista = NULL;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(txrc->skb);
+ int i;
+- u32 mask;
+- u8 mcs_mask[IEEE80211_HT_MCS_MASK_LEN];
+
+ if (sta && test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) {
+ ista = &sta->sta;
+@@ -454,37 +676,27 @@ void rate_control_get_rate(struct ieee80
+
+ ref->ops->get_rate(ref->priv, ista, priv_sta, txrc);
+
+- /*
+- * Try to enforce the rateidx mask the user wanted. skip this if the
+- * default mask (allow all rates) is used to save some processing for
+- * the common case.
+- */
+- mask = sdata->rc_rateidx_mask[info->band];
+- memcpy(mcs_mask, sdata->rc_rateidx_mcs_mask[info->band],
+- sizeof(mcs_mask));
+- if (mask != (1 << txrc->sband->n_bitrates) - 1) {
+- if (sta) {
+- /* Filter out rates that the STA does not support */
+- mask &= sta->sta.supp_rates[info->band];
+- for (i = 0; i < sizeof(mcs_mask); i++)
+- mcs_mask[i] &= sta->sta.ht_cap.mcs.rx_mask[i];
+- }
+- /*
+- * Make sure the rate index selected for each TX rate is
+- * included in the configured mask and change the rate indexes
+- * if needed.
+- */
+- for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
+- /* Skip invalid rates */
+- if (info->control.rates[i].idx < 0)
+- break;
+- rate_idx_match_mask(&info->control.rates[i], txrc,
+- mask, mcs_mask);
+- }
+- }
++ if (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
++ return;
+
+- BUG_ON(info->control.rates[0].idx < 0);
++ ieee80211_get_tx_rates(&sdata->vif, ista, txrc->skb,
++ info->control.rates,
++ ARRAY_SIZE(info->control.rates));
++}
++
++int rate_control_set_rates(struct ieee80211_hw *hw,
++ struct ieee80211_sta *pubsta,
++ struct ieee80211_sta_rates *rates)
++{
++ struct ieee80211_sta_rates *old = rcu_dereference(pubsta->rates);
++
++ rcu_assign_pointer(pubsta->rates, rates);
++ if (old)
++ kfree_rcu(old, rcu_head);
++
++ return 0;
+ }
++EXPORT_SYMBOL(rate_control_set_rates);
+
+ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
+ const char *name)
+--- a/net/mac80211/rc80211_minstrel.c
++++ b/net/mac80211/rc80211_minstrel.c
+@@ -84,6 +84,50 @@ minstrel_sort_best_tp_rates(struct minst
+ }
+
+ static void
++minstrel_set_rate(struct minstrel_sta_info *mi, struct ieee80211_sta_rates *ratetbl,
++ int offset, int idx)
++{
++ struct minstrel_rate *r = &mi->r[idx];
++
++ ratetbl->rate[offset].idx = r->rix;
++ ratetbl->rate[offset].count = r->adjusted_retry_count;
++ ratetbl->rate[offset].count_cts = r->retry_count_cts;
++ ratetbl->rate[offset].count_rts = r->retry_count_rtscts;
++}
++
++static void
++minstrel_update_rates(struct minstrel_priv *mp, struct minstrel_sta_info *mi)
++{
++ struct ieee80211_sta_rates *ratetbl;
++ int i = 0;
++
++ ratetbl = kzalloc(sizeof(*ratetbl), GFP_ATOMIC);
++ if (!ratetbl)
++ return;
++
++ /* Start with max_tp_rate */
++ minstrel_set_rate(mi, ratetbl, i++, mi->max_tp_rate[0]);
++
++ if (mp->hw->max_rates >= 3) {
++ /* At least 3 tx rates supported, use max_tp_rate2 next */
++ minstrel_set_rate(mi, ratetbl, i++, mi->max_tp_rate[1]);
++ }
++
++ if (mp->hw->max_rates >= 2) {
++ /* At least 2 tx rates supported, use max_prob_rate next */
++ minstrel_set_rate(mi, ratetbl, i++, mi->max_prob_rate);
++ }
++
++ /* Use lowest rate last */
++ ratetbl->rate[i].idx = mi->lowest_rix;
++ ratetbl->rate[i].count = mp->max_retry;
++ ratetbl->rate[i].count_cts = mp->max_retry;
++ ratetbl->rate[i].count_rts = mp->max_retry;
++
++ rate_control_set_rates(mp->hw, mi->sta, ratetbl);
++}
++
++static void
+ minstrel_update_stats(struct minstrel_priv *mp, struct minstrel_sta_info *mi)
+ {
+ u8 tmp_tp_rate[MAX_THR_RATES];
+@@ -161,6 +205,8 @@ minstrel_update_stats(struct minstrel_pr
+
+ /* Reset update timer */
+ mi->stats_update = jiffies;
++
++ minstrel_update_rates(mp, mi);
+ }
+
+ static void
+@@ -209,9 +255,9 @@ minstrel_get_retry_count(struct minstrel
+ {
+ unsigned int retry = mr->adjusted_retry_count;
+
+- if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS)
++ if (info->control.use_rts)
+ retry = max(2U, min(mr->retry_count_rtscts, retry));
+- else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
++ else if (info->control.use_cts_prot)
+ retry = max(2U, min(mr->retry_count_cts, retry));
+ return retry;
+ }
+@@ -240,13 +286,12 @@ minstrel_get_rate(void *priv, struct iee
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct minstrel_sta_info *mi = priv_sta;
+ struct minstrel_priv *mp = priv;
+- struct ieee80211_tx_rate *ar = info->control.rates;
+- unsigned int ndx, sample_ndx = 0;
++ struct ieee80211_tx_rate *rate = &info->control.rates[0];
++ struct minstrel_rate *msr, *mr;
++ unsigned int ndx;
+ bool mrr_capable;
+- bool indirect_rate_sampling = false;
+- bool rate_sampling = false;
+- int i, delta;
+- int mrr_ndx[3];
++ bool prev_sample = mi->prev_sample;
++ int delta;
+ int sampling_ratio;
+
+ /* management/no-ack frames do not use rate control */
+@@ -262,107 +307,75 @@ minstrel_get_rate(void *priv, struct iee
+ else
+ sampling_ratio = mp->lookaround_rate;
+
+- /* init rateindex [ndx] with max throughput rate */
+- ndx = mi->max_tp_rate[0];
+-
+ /* increase sum packet counter */
+ mi->packet_count++;
+
+ delta = (mi->packet_count * sampling_ratio / 100) -
+ (mi->sample_count + mi->sample_deferred / 2);
+
+- /* delta > 0: sampling required */
+- if ((delta > 0) && (mrr_capable || !mi->prev_sample)) {
+- struct minstrel_rate *msr;
+- if (mi->packet_count >= 10000) {
+- mi->sample_deferred = 0;
+- mi->sample_count = 0;
+- mi->packet_count = 0;
+- } else if (delta > mi->n_rates * 2) {
+- /* With multi-rate retry, not every planned sample
+- * attempt actually gets used, due to the way the retry
+- * chain is set up - [max_tp,sample,prob,lowest] for
+- * sample_rate < max_tp.
+- *
+- * If there's too much sampling backlog and the link
+- * starts getting worse, minstrel would start bursting
+- * out lots of sampling frames, which would result
+- * in a large throughput loss. */
+- mi->sample_count += (delta - mi->n_rates * 2);
+- }
++ /* delta < 0: no sampling required */
++ mi->prev_sample = false;
++ if (delta < 0 || (!mrr_capable && prev_sample))
++ return;
+
+- /* get next random rate sample */
+- sample_ndx = minstrel_get_next_sample(mi);
+- msr = &mi->r[sample_ndx];
+- rate_sampling = true;
+-
+- /* Decide if direct ( 1st mrr stage) or indirect (2nd mrr stage)
+- * rate sampling method should be used.
+- * Respect such rates that are not sampled for 20 interations.
+- */
+- if (mrr_capable &&
+- msr->perfect_tx_time > mi->r[ndx].perfect_tx_time &&
+- msr->sample_skipped < 20)
+- indirect_rate_sampling = true;
+-
+- if (!indirect_rate_sampling) {
+- if (msr->sample_limit != 0) {
+- ndx = sample_ndx;
+- mi->sample_count++;
+- if (msr->sample_limit > 0)
+- msr->sample_limit--;
+- } else
+- rate_sampling = false;
+- } else {
+- /* Only use IEEE80211_TX_CTL_RATE_CTRL_PROBE to mark
+- * packets that have the sampling rate deferred to the
+- * second MRR stage. Increase the sample counter only
+- * if the deferred sample rate was actually used.
+- * Use the sample_deferred counter to make sure that
+- * the sampling is not done in large bursts */
+- info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
+- mi->sample_deferred++;
+- }
++ if (mi->packet_count >= 10000) {
++ mi->sample_deferred = 0;
++ mi->sample_count = 0;
++ mi->packet_count = 0;
++ } else if (delta > mi->n_rates * 2) {
++ /* With multi-rate retry, not every planned sample
++ * attempt actually gets used, due to the way the retry
++ * chain is set up - [max_tp,sample,prob,lowest] for
++ * sample_rate < max_tp.
++ *
++ * If there's too much sampling backlog and the link
++ * starts getting worse, minstrel would start bursting
++ * out lots of sampling frames, which would result
++ * in a large throughput loss. */
++ mi->sample_count += (delta - mi->n_rates * 2);
++ }
++
++ /* get next random rate sample */
++ ndx = minstrel_get_next_sample(mi);
++ msr = &mi->r[ndx];
++ mr = &mi->r[mi->max_tp_rate[0]];
++
++ /* Decide if direct ( 1st mrr stage) or indirect (2nd mrr stage)
++ * rate sampling method should be used.
++ * Respect such rates that are not sampled for 20 interations.
++ */
++ if (mrr_capable &&
++ msr->perfect_tx_time > mr->perfect_tx_time &&
++ msr->sample_skipped < 20) {
++ /* Only use IEEE80211_TX_CTL_RATE_CTRL_PROBE to mark
++ * packets that have the sampling rate deferred to the
++ * second MRR stage. Increase the sample counter only
++ * if the deferred sample rate was actually used.
++ * Use the sample_deferred counter to make sure that
++ * the sampling is not done in large bursts */
++ info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
++ rate++;
++ mi->sample_deferred++;
++ } else {
++ if (!msr->sample_limit != 0)
++ return;
++
++ mi->sample_count++;
++ if (msr->sample_limit > 0)
++ msr->sample_limit--;
+ }
+- mi->prev_sample = rate_sampling;
+
+ /* If we're not using MRR and the sampling rate already
+ * has a probability of >95%, we shouldn't be attempting
+ * to use it, as this only wastes precious airtime */
+- if (!mrr_capable && rate_sampling &&
++ if (!mrr_capable &&
+ (mi->r[ndx].probability > MINSTREL_FRAC(95, 100)))
+- ndx = mi->max_tp_rate[0];
+-
+- /* mrr setup for 1st stage */
+- ar[0].idx = mi->r[ndx].rix;
+- ar[0].count = minstrel_get_retry_count(&mi->r[ndx], info);
+-
+- /* non mrr setup for 2nd stage */
+- if (!mrr_capable) {
+- if (!rate_sampling)
+- ar[0].count = mp->max_retry;
+- ar[1].idx = mi->lowest_rix;
+- ar[1].count = mp->max_retry;
+ return;
+- }
+
+- /* mrr setup for 2nd stage */
+- if (rate_sampling) {
+- if (indirect_rate_sampling)
+- mrr_ndx[0] = sample_ndx;
+- else
+- mrr_ndx[0] = mi->max_tp_rate[0];
+- } else {
+- mrr_ndx[0] = mi->max_tp_rate[1];
+- }
++ mi->prev_sample = true;
+
+- /* mrr setup for 3rd & 4th stage */
+- mrr_ndx[1] = mi->max_prob_rate;
+- mrr_ndx[2] = 0;
+- for (i = 1; i < 4; i++) {
+- ar[i].idx = mi->r[mrr_ndx[i - 1]].rix;
+- ar[i].count = mi->r[mrr_ndx[i - 1]].adjusted_retry_count;
+- }
++ rate->idx = mi->r[ndx].rix;
++ rate->count = minstrel_get_retry_count(&mi->r[ndx], info);
+ }
+
+
+@@ -412,12 +425,16 @@ minstrel_rate_init(void *priv, struct ie
+ unsigned int i, n = 0;
+ unsigned int t_slot = 9; /* FIXME: get real slot time */
+
++ mi->sta = sta;
+ mi->lowest_rix = rate_lowest_index(sband, sta);
+ ctl_rate = &sband->bitrates[mi->lowest_rix];
+ mi->sp_ack_dur = ieee80211_frame_duration(sband->band, 10,
+ ctl_rate->bitrate,
+ !!(ctl_rate->flags & IEEE80211_RATE_ERP_G), 1);
+
++ memset(mi->max_tp_rate, 0, sizeof(mi->max_tp_rate));
++ mi->max_prob_rate = 0;
++
+ for (i = 0; i < sband->n_bitrates; i++) {
+ struct minstrel_rate *mr = &mi->r[n];
+ unsigned int tx_time = 0, tx_time_cts = 0, tx_time_rtscts = 0;
+@@ -460,6 +477,8 @@ minstrel_rate_init(void *priv, struct ie
+ } while ((tx_time < mp->segment_size) &&
+ (++mr->retry_count < mp->max_retry));
+ mr->adjusted_retry_count = mr->retry_count;
++ if (!(sband->bitrates[i].flags & IEEE80211_RATE_ERP_G))
++ mr->retry_count_cts = mr->retry_count;
+ }
+
+ for (i = n; i < sband->n_bitrates; i++) {
+@@ -471,6 +490,7 @@ minstrel_rate_init(void *priv, struct ie
+ mi->stats_update = jiffies;
+
+ init_sample_table(mi);
++ minstrel_update_rates(mp, mi);
+ }
+
+ static void *
+--- a/net/mac80211/rc80211_minstrel.h
++++ b/net/mac80211/rc80211_minstrel.h
+@@ -9,7 +9,8 @@
+ #ifndef __RC_MINSTREL_H
+ #define __RC_MINSTREL_H
+
+-#define EWMA_LEVEL 75 /* ewma weighting factor [%] */
++#define EWMA_LEVEL 96 /* ewma weighting factor [/EWMA_DIV] */
++#define EWMA_DIV 128
+ #define SAMPLE_COLUMNS 10 /* number of columns in sample table */
+
+
+@@ -27,7 +28,7 @@
+ static inline int
+ minstrel_ewma(int old, int new, int weight)
+ {
+- return (new * (100 - weight) + old * weight) / 100;
++ return (new * (EWMA_DIV - weight) + old * weight) / EWMA_DIV;
+ }
+
+
+@@ -62,6 +63,8 @@ struct minstrel_rate {
+ };
+
+ struct minstrel_sta_info {
++ struct ieee80211_sta *sta;
++
+ unsigned long stats_update;
+ unsigned int sp_ack_dur;
+ unsigned int rate_avg;
+--- a/net/mac80211/rc80211_minstrel_debugfs.c
++++ b/net/mac80211/rc80211_minstrel_debugfs.c
+@@ -68,7 +68,7 @@ minstrel_stats_open(struct inode *inode,
+
+ file->private_data = ms;
+ p = ms->buf;
+- p += sprintf(p, "rate throughput ewma prob this prob "
++ p += sprintf(p, "rate throughput ewma prob this prob "
+ "this succ/attempt success attempts\n");
+ for (i = 0; i < mi->n_rates; i++) {
+ struct minstrel_rate *mr = &mi->r[i];
+@@ -86,7 +86,7 @@ minstrel_stats_open(struct inode *inode,
+ eprob = MINSTREL_TRUNC(mr->probability * 1000);
+
+ p += sprintf(p, " %6u.%1u %6u.%1u %6u.%1u "
+- "%3u(%3u) %8llu %8llu\n",
++ " %3u(%3u) %8llu %8llu\n",
+ tp / 10, tp % 10,
+ eprob / 10, eprob % 10,
+ prob / 10, prob % 10,
+--- a/net/mac80211/rc80211_minstrel_ht.c
++++ b/net/mac80211/rc80211_minstrel_ht.c
+@@ -126,6 +126,9 @@ const struct mcs_group minstrel_mcs_grou
+
+ static u8 sample_table[SAMPLE_COLUMNS][MCS_GROUP_RATES];
+
++static void
++minstrel_ht_update_rates(struct minstrel_priv *mp, struct minstrel_ht_sta *mi);
++
+ /*
+ * Look up an MCS group index based on mac80211 rate information
+ */
+@@ -244,6 +247,7 @@ minstrel_ht_update_stats(struct minstrel
+ struct minstrel_rate_stats *mr;
+ int cur_prob, cur_prob_tp, cur_tp, cur_tp2;
+ int group, i, index;
++ bool mi_rates_valid = false;
+
+ if (mi->ampdu_packets > 0) {
+ mi->avg_ampdu_len = minstrel_ewma(mi->avg_ampdu_len,
+@@ -254,11 +258,10 @@ minstrel_ht_update_stats(struct minstrel
+
+ mi->sample_slow = 0;
+ mi->sample_count = 0;
+- mi->max_tp_rate = 0;
+- mi->max_tp_rate2 = 0;
+- mi->max_prob_rate = 0;
+
+ for (group = 0; group < ARRAY_SIZE(minstrel_mcs_groups); group++) {
++ bool mg_rates_valid = false;
++
+ cur_prob = 0;
+ cur_prob_tp = 0;
+ cur_tp = 0;
+@@ -268,15 +271,24 @@ minstrel_ht_update_stats(struct minstrel
+ if (!mg->supported)
+ continue;
+
+- mg->max_tp_rate = 0;
+- mg->max_tp_rate2 = 0;
+- mg->max_prob_rate = 0;
+ mi->sample_count++;
+
+ for (i = 0; i < MCS_GROUP_RATES; i++) {
+ if (!(mg->supported & BIT(i)))
+ continue;
+
++ /* initialize rates selections starting indexes */
++ if (!mg_rates_valid) {
++ mg->max_tp_rate = mg->max_tp_rate2 =
++ mg->max_prob_rate = i;
++ if (!mi_rates_valid) {
++ mi->max_tp_rate = mi->max_tp_rate2 =
++ mi->max_prob_rate = i;
++ mi_rates_valid = true;
++ }
++ mg_rates_valid = true;
++ }
++
+ mr = &mg->rates[i];
+ mr->retry_updated = false;
+ index = MCS_GROUP_RATES * group + i;
+@@ -456,7 +468,7 @@ minstrel_ht_tx_status(void *priv, struct
+ struct ieee80211_tx_rate *ar = info->status.rates;
+ struct minstrel_rate_stats *rate, *rate2;
+ struct minstrel_priv *mp = priv;
+- bool last;
++ bool last, update = false;
+ int i;
+
+ if (!msp->is_ht)
+@@ -505,21 +517,29 @@ minstrel_ht_tx_status(void *priv, struct
+ rate = minstrel_get_ratestats(mi, mi->max_tp_rate);
+ if (rate->attempts > 30 &&
+ MINSTREL_FRAC(rate->success, rate->attempts) <
+- MINSTREL_FRAC(20, 100))
++ MINSTREL_FRAC(20, 100)) {
+ minstrel_downgrade_rate(mi, &mi->max_tp_rate, true);
++ update = true;
++ }
+
+ rate2 = minstrel_get_ratestats(mi, mi->max_tp_rate2);
+ if (rate2->attempts > 30 &&
+ MINSTREL_FRAC(rate2->success, rate2->attempts) <
+- MINSTREL_FRAC(20, 100))
++ MINSTREL_FRAC(20, 100)) {
+ minstrel_downgrade_rate(mi, &mi->max_tp_rate2, false);
++ update = true;
++ }
+
+ if (time_after(jiffies, mi->stats_update + (mp->update_interval / 2 * HZ) / 1000)) {
++ update = true;
+ minstrel_ht_update_stats(mp, mi);
+ if (!(info->flags & IEEE80211_TX_CTL_AMPDU) &&
+ mi->max_prob_rate / MCS_GROUP_RATES != MINSTREL_CCK_GROUP)
+ minstrel_aggr_check(sta, skb);
+ }
++
++ if (update)
++ minstrel_ht_update_rates(mp, mi);
+ }
+
+ static void
+@@ -580,39 +600,73 @@ minstrel_calc_retransmit(struct minstrel
+ (++mr->retry_count < mp->max_retry));
+ }
+
+-
+ static void
+ minstrel_ht_set_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi,
+- struct ieee80211_tx_rate *rate, int index,
+- bool sample, bool rtscts)
++ struct ieee80211_sta_rates *ratetbl, int offset, int index)
+ {
+ const struct mcs_group *group = &minstrel_mcs_groups[index / MCS_GROUP_RATES];
+ struct minstrel_rate_stats *mr;
++ u8 idx;
++ u16 flags;
+
+ mr = minstrel_get_ratestats(mi, index);
+ if (!mr->retry_updated)
+ minstrel_calc_retransmit(mp, mi, index);
+
+- if (sample)
+- rate->count = 1;
+- else if (mr->probability < MINSTREL_FRAC(20, 100))
+- rate->count = 2;
+- else if (rtscts)
+- rate->count = mr->retry_count_rtscts;
+- else
+- rate->count = mr->retry_count;
+-
+- rate->flags = 0;
+- if (rtscts)
+- rate->flags |= IEEE80211_TX_RC_USE_RTS_CTS;
++ if (mr->probability < MINSTREL_FRAC(20, 100) || !mr->retry_count) {
++ ratetbl->rate[offset].count = 2;
++ ratetbl->rate[offset].count_rts = 2;
++ ratetbl->rate[offset].count_cts = 2;
++ } else {
++ ratetbl->rate[offset].count = mr->retry_count;
++ ratetbl->rate[offset].count_cts = mr->retry_count;
++ ratetbl->rate[offset].count_rts = mr->retry_count_rtscts;
++ }
+
+ if (index / MCS_GROUP_RATES == MINSTREL_CCK_GROUP) {
+- rate->idx = mp->cck_rates[index % ARRAY_SIZE(mp->cck_rates)];
++ idx = mp->cck_rates[index % ARRAY_SIZE(mp->cck_rates)];
++ flags = 0;
++ } else {
++ idx = index % MCS_GROUP_RATES +
++ (group->streams - 1) * MCS_GROUP_RATES;
++ flags = IEEE80211_TX_RC_MCS | group->flags;
++ }
++
++ if (offset > 0) {
++ ratetbl->rate[offset].count = ratetbl->rate[offset].count_rts;
++ flags |= IEEE80211_TX_RC_USE_RTS_CTS;
++ }
++
++ ratetbl->rate[offset].idx = idx;
++ ratetbl->rate[offset].flags = flags;
++}
++
++static void
++minstrel_ht_update_rates(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
++{
++ struct ieee80211_sta_rates *rates;
++ int i = 0;
++
++ rates = kzalloc(sizeof(*rates), GFP_ATOMIC);
++ if (!rates)
+ return;
++
++ /* Start with max_tp_rate */
++ minstrel_ht_set_rate(mp, mi, rates, i++, mi->max_tp_rate);
++
++ if (mp->hw->max_rates >= 3) {
++ /* At least 3 tx rates supported, use max_tp_rate2 next */
++ minstrel_ht_set_rate(mp, mi, rates, i++, mi->max_tp_rate2);
++ }
++
++ if (mp->hw->max_rates >= 2) {
++ /*
++ * At least 2 tx rates supported, use max_prob_rate next */
++ minstrel_ht_set_rate(mp, mi, rates, i++, mi->max_prob_rate);
+ }
+
+- rate->flags |= IEEE80211_TX_RC_MCS | group->flags;
+- rate->idx = index % MCS_GROUP_RATES + (group->streams - 1) * MCS_GROUP_RATES;
++ rates->rate[i].idx = -1;
++ rate_control_set_rates(mp->hw, mi->sta, rates);
+ }
+
+ static inline int
+@@ -702,13 +756,13 @@ static void
+ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
+ struct ieee80211_tx_rate_control *txrc)
+ {
++ const struct mcs_group *sample_group;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(txrc->skb);
+- struct ieee80211_tx_rate *ar = info->status.rates;
++ struct ieee80211_tx_rate *rate = &info->status.rates[0];
+ struct minstrel_ht_sta_priv *msp = priv_sta;
+ struct minstrel_ht_sta *mi = &msp->ht;
+ struct minstrel_priv *mp = priv;
+ int sample_idx;
+- bool sample = false;
+
+ if (rate_control_send_low(sta, priv_sta, txrc))
+ return;
+@@ -736,51 +790,6 @@ minstrel_ht_get_rate(void *priv, struct
+ }
+ #endif
+
+- if (sample_idx >= 0) {
+- sample = true;
+- minstrel_ht_set_rate(mp, mi, &ar[0], sample_idx,
+- true, false);
+- info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
+- } else {
+- minstrel_ht_set_rate(mp, mi, &ar[0], mi->max_tp_rate,
+- false, false);
+- }
+-
+- if (mp->hw->max_rates >= 3) {
+- /*
+- * At least 3 tx rates supported, use
+- * sample_rate -> max_tp_rate -> max_prob_rate for sampling and
+- * max_tp_rate -> max_tp_rate2 -> max_prob_rate by default.
+- */
+- if (sample_idx >= 0)
+- minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate,
+- false, false);
+- else
+- minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate2,
+- false, true);
+-
+- minstrel_ht_set_rate(mp, mi, &ar[2], mi->max_prob_rate,
+- false, !sample);
+-
+- ar[3].count = 0;
+- ar[3].idx = -1;
+- } else if (mp->hw->max_rates == 2) {
+- /*
+- * Only 2 tx rates supported, use
+- * sample_rate -> max_prob_rate for sampling and
+- * max_tp_rate -> max_prob_rate by default.
+- */
+- minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_prob_rate,
+- false, !sample);
+-
+- ar[2].count = 0;
+- ar[2].idx = -1;
+- } else {
+- /* Not using MRR, only use the first rate */
+- ar[1].count = 0;
+- ar[1].idx = -1;
+- }
+-
+ mi->total_packets++;
+
+ /* wraparound */
+@@ -788,6 +797,16 @@ minstrel_ht_get_rate(void *priv, struct
+ mi->total_packets = 0;
+ mi->sample_packets = 0;
+ }
++
++ if (sample_idx < 0)
++ return;
++
++ sample_group = &minstrel_mcs_groups[sample_idx / MCS_GROUP_RATES];
++ info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
++ rate->idx = sample_idx % MCS_GROUP_RATES +
++ (sample_group->streams - 1) * MCS_GROUP_RATES;
++ rate->flags = IEEE80211_TX_RC_MCS | sample_group->flags;
++ rate->count = 1;
+ }
+
+ static void
+@@ -837,6 +856,8 @@ minstrel_ht_update_caps(void *priv, stru
+
+ msp->is_ht = true;
+ memset(mi, 0, sizeof(*mi));
++
++ mi->sta = sta;
+ mi->stats_update = jiffies;
+
+ ack_dur = ieee80211_frame_duration(sband->band, 10, 60, 1, 1);
+@@ -898,6 +919,9 @@ minstrel_ht_update_caps(void *priv, stru
+ if (!n_supported)
+ goto use_legacy;
+
++ minstrel_ht_update_stats(mp, mi);
++ minstrel_ht_update_rates(mp, mi);
++
+ return;
+
+ use_legacy:
+--- a/net/mac80211/rc80211_minstrel_ht.h
++++ b/net/mac80211/rc80211_minstrel_ht.h
+@@ -65,6 +65,8 @@ struct minstrel_mcs_group_data {
+ };
+
+ struct minstrel_ht_sta {
++ struct ieee80211_sta *sta;
++
+ /* ampdu length (average, per sampling interval) */
+ unsigned int ampdu_len;
+ unsigned int ampdu_packets;
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
-@@ -2365,6 +2365,7 @@ ieee80211_rx_h_action(struct ieee80211_r
+@@ -1372,6 +1372,7 @@ ieee80211_rx_h_sta_process(struct ieee80
+ struct sk_buff *skb = rx->skb;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
++ int i;
+
+ if (!sta)
+ return RX_CONTINUE;
+@@ -1422,6 +1423,19 @@ ieee80211_rx_h_sta_process(struct ieee80
+ ewma_add(&sta->avg_signal, -status->signal);
+ }
+
++ if (status->chains) {
++ sta->chains = status->chains;
++ for (i = 0; i < ARRAY_SIZE(status->chain_signal); i++) {
++ int signal = status->chain_signal[i];
++
++ if (!(status->chains & BIT(i)))
++ continue;
++
++ sta->chain_signal_last[i] = signal;
++ ewma_add(&sta->chain_signal_avg[i], -signal);
++ }
++ }
++
+ /*
+ * Change STA power saving mode only at the end of a frame
+ * exchange sequence.
+@@ -2085,6 +2099,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80
+ }
+
+ fwd_hdr = (struct ieee80211_hdr *) fwd_skb->data;
++ fwd_hdr->frame_control &= ~cpu_to_le16(IEEE80211_FCTL_RETRY);
+ info = IEEE80211_SKB_CB(fwd_skb);
+ memset(info, 0, sizeof(*info));
+ info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
+@@ -2356,6 +2371,7 @@ ieee80211_rx_h_action(struct ieee80211_r
sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
sdata->vif.type != NL80211_IFTYPE_AP &&
sdata->vif.type != NL80211_IFTYPE_ADHOC)
break;
-@@ -2692,14 +2693,15 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
+@@ -2423,6 +2439,22 @@ ieee80211_rx_h_action(struct ieee80211_r
+ }
+
+ break;
++ case WLAN_CATEGORY_PUBLIC:
++ if (len < IEEE80211_MIN_ACTION_SIZE + 1)
++ goto invalid;
++ if (sdata->vif.type != NL80211_IFTYPE_STATION)
++ break;
++ if (!rx->sta)
++ break;
++ if (!ether_addr_equal(mgmt->bssid, sdata->u.mgd.bssid))
++ break;
++ if (mgmt->u.action.u.ext_chan_switch.action_code !=
++ WLAN_PUB_ACTION_EXT_CHANSW_ANN)
++ break;
++ if (len < offsetof(struct ieee80211_mgmt,
++ u.action.u.ext_chan_switch.variable))
++ goto invalid;
++ goto queue;
+ case WLAN_CATEGORY_VHT:
+ if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+ sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
+@@ -2506,10 +2538,6 @@ ieee80211_rx_h_action(struct ieee80211_r
+ ieee80211_process_measurement_req(sdata, mgmt, len);
+ goto handled;
+ case WLAN_ACTION_SPCT_CHL_SWITCH:
+- if (len < (IEEE80211_MIN_ACTION_SIZE +
+- sizeof(mgmt->u.action.u.chan_switch)))
+- break;
+-
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
+ break;
+
+@@ -2695,14 +2723,15 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
if (!ieee80211_vif_is_mesh(&sdata->vif) &&
sdata->vif.type != NL80211_IFTYPE_ADHOC &&
break;
case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP):
case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP):
-@@ -3028,10 +3030,16 @@ static int prepare_for_handlers(struct i
+@@ -3031,10 +3060,16 @@ static int prepare_for_handlers(struct i
}
break;
case NL80211_IFTYPE_WDS:
break;
case NL80211_IFTYPE_P2P_DEVICE:
if (!ieee80211_is_public_action(hdr, skb->len) &&
+--- a/net/mac80211/scan.c
++++ b/net/mac80211/scan.c
+@@ -181,7 +181,7 @@ void ieee80211_scan_rx(struct ieee80211_
+ if (baselen > skb->len)
+ return;
+
+- ieee802_11_parse_elems(elements, skb->len - baselen, &elems);
++ ieee802_11_parse_elems(elements, skb->len - baselen, false, &elems);
+
+ channel = ieee80211_get_channel(local->hw.wiphy, rx_status->freq);
+
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -32,7 +32,6 @@
WLAN_STA_CLEAR_PS_FILT,
WLAN_STA_MFP,
WLAN_STA_BLOCK_BA,
---- a/net/mac80211/tx.c
-+++ b/net/mac80211/tx.c
-@@ -1231,34 +1231,40 @@ static bool ieee80211_tx_frags(struct ie
- if (local->queue_stop_reasons[q] ||
- (!txpending && !skb_queue_empty(&local->pending[q]))) {
- if (unlikely(info->flags &
-- IEEE80211_TX_INTFL_OFFCHAN_TX_OK &&
-- local->queue_stop_reasons[q] &
-- ~BIT(IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL))) {
-+ IEEE80211_TX_INTFL_OFFCHAN_TX_OK)) {
-+ if (local->queue_stop_reasons[q] &
-+ ~BIT(IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL)) {
-+ /*
-+ * Drop off-channel frames if queues
-+ * are stopped for any reason other
-+ * than off-channel operation. Never
-+ * queue them.
-+ */
-+ spin_unlock_irqrestore(
-+ &local->queue_stop_reason_lock,
-+ flags);
-+ ieee80211_purge_tx_queue(&local->hw,
-+ skbs);
-+ return true;
-+ }
-+ } else {
-+
- /*
-- * Drop off-channel frames if queues are stopped
-- * for any reason other than off-channel
-- * operation. Never queue them.
-+ * Since queue is stopped, queue up frames for
-+ * later transmission from the tx-pending
-+ * tasklet when the queue is woken again.
- */
-- spin_unlock_irqrestore(
-- &local->queue_stop_reason_lock, flags);
-- ieee80211_purge_tx_queue(&local->hw, skbs);
-- return true;
-+ if (txpending)
-+ skb_queue_splice_init(skbs,
-+ &local->pending[q]);
-+ else
-+ skb_queue_splice_tail_init(skbs,
-+ &local->pending[q]);
-+
-+ spin_unlock_irqrestore(&local->queue_stop_reason_lock,
-+ flags);
-+ return false;
- }
--
-- /*
-- * Since queue is stopped, queue up frames for later
-- * transmission from the tx-pending tasklet when the
-- * queue is woken again.
-- */
-- if (txpending)
-- skb_queue_splice_init(skbs, &local->pending[q]);
-- else
-- skb_queue_splice_tail_init(skbs,
-- &local->pending[q]);
--
-- spin_unlock_irqrestore(&local->queue_stop_reason_lock,
-- flags);
-- return false;
- }
- spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
-
-@@ -1848,9 +1854,24 @@ netdev_tx_t ieee80211_subif_start_xmit(s
- }
-
- if (!is_multicast_ether_addr(skb->data)) {
-+ struct sta_info *next_hop;
-+ bool mpp_lookup = true;
-+
- mpath = mesh_path_lookup(sdata, skb->data);
-- if (!mpath)
-+ if (mpath) {
-+ mpp_lookup = false;
-+ next_hop = rcu_dereference(mpath->next_hop);
-+ if (!next_hop ||
-+ !(mpath->flags & (MESH_PATH_ACTIVE |
-+ MESH_PATH_RESOLVING)))
-+ mpp_lookup = true;
-+ }
-+
-+ if (mpp_lookup)
- mppath = mpp_path_lookup(sdata, skb->data);
-+
-+ if (mppath && mpath)
-+ mesh_path_del(mpath->sdata, mpath->dst);
- }
-
- /*
---- a/net/wireless/nl80211.c
-+++ b/net/wireless/nl80211.c
-@@ -554,16 +554,9 @@ static int nl80211_msg_put_channel(struc
- if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
- nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
- goto nla_put_failure;
-- if (chan->flags & IEEE80211_CHAN_RADAR) {
-- u32 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
-- if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
-- goto nla_put_failure;
-- if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
-- chan->dfs_state))
-- goto nla_put_failure;
-- if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME, time))
-- goto nla_put_failure;
-- }
-+ if ((chan->flags & IEEE80211_CHAN_RADAR) &&
-+ nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
-+ goto nla_put_failure;
- if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
- nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
- goto nla_put_failure;
-@@ -900,9 +893,6 @@ static int nl80211_put_iface_combination
- nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
- c->max_interfaces))
- goto nla_put_failure;
-- if (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
-- c->radar_detect_widths))
-- goto nla_put_failure;
-
- nla_nest_end(msg, nl_combi);
- }
-@@ -914,48 +904,6 @@ nla_put_failure:
- return -ENOBUFS;
- }
-
--#ifdef CONFIG_PM
--static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
-- struct sk_buff *msg)
--{
-- const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp;
-- struct nlattr *nl_tcp;
--
-- if (!tcp)
-- return 0;
--
-- nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
-- if (!nl_tcp)
-- return -ENOBUFS;
--
-- if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
-- tcp->data_payload_max))
-- return -ENOBUFS;
--
-- if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
-- tcp->data_payload_max))
-- return -ENOBUFS;
--
-- if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
-- return -ENOBUFS;
--
-- if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
-- sizeof(*tcp->tok), tcp->tok))
-- return -ENOBUFS;
--
-- if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
-- tcp->data_interval_max))
-- return -ENOBUFS;
--
-- if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
-- tcp->wake_payload_max))
-- return -ENOBUFS;
--
-- nla_nest_end(msg, nl_tcp);
-- return 0;
--}
--#endif
--
- static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
- struct cfg80211_registered_device *dev)
- {
-@@ -1330,9 +1278,6 @@ static int nl80211_send_wiphy(struct sk_
- goto nla_put_failure;
- }
-
-- if (nl80211_send_wowlan_tcp_caps(dev, msg))
-- goto nla_put_failure;
--
- nla_nest_end(msg, nl_wowlan);
- }
- #endif
---- a/net/mac80211/cfg.c
-+++ b/net/mac80211/cfg.c
-@@ -3285,13 +3285,19 @@ static int ieee80211_cfg_get_channel(str
- struct cfg80211_chan_def *chandef)
- {
- struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
-+ struct ieee80211_local *local = wiphy_priv(wiphy);
- struct ieee80211_chanctx_conf *chanctx_conf;
- int ret = -ENODATA;
-
- rcu_read_lock();
-- chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
-- if (chanctx_conf) {
-- *chandef = chanctx_conf->def;
-+ if (local->use_chanctx) {
-+ chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
-+ if (chanctx_conf) {
-+ *chandef = chanctx_conf->def;
-+ ret = 0;
-+ }
-+ } else if (local->open_count == local->monitors) {
-+ *chandef = local->monitor_chandef;
- ret = 0;
- }
- rcu_read_unlock();
---- a/drivers/net/wireless/ath/ath9k/hw.c
-+++ b/drivers/net/wireless/ath/ath9k/hw.c
-@@ -1463,7 +1463,9 @@ static bool ath9k_hw_chip_reset(struct a
- reset_type = ATH9K_RESET_POWER_ON;
- else
- reset_type = ATH9K_RESET_COLD;
-- }
-+ } else if (ah->chip_fullsleep || REG_READ(ah, AR_Q_TXE) ||
-+ (REG_READ(ah, AR_CR) & AR_CR_RXE))
-+ reset_type = ATH9K_RESET_COLD;
-
- if (!ath9k_hw_set_reset_reg(ah, reset_type))
- return false;
-@@ -1876,13 +1878,12 @@ int ath9k_hw_reset(struct ath_hw *ah, st
-
- ENABLE_REGWRITE_BUFFER(ah);
-
-- REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
-- REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
-- | macStaId1
-+ REG_RMW(ah, AR_STA_ID1, macStaId1
- | AR_STA_ID1_RTS_USE_DEF
- | (ah->config.
- ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
-- | ah->sta_id1_defaults);
-+ | ah->sta_id1_defaults,
-+ ~AR_STA_ID1_SADH_MASK);
- ath_hw_setbssidmask(common);
- REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
- ath9k_hw_write_associd(ah);
---- a/drivers/net/wireless/rt2x00/rt2x00dev.c
-+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
-@@ -1236,8 +1236,10 @@ static inline void rt2x00lib_set_if_comb
- */
- if_limit = &rt2x00dev->if_limits_ap;
- if_limit->max = rt2x00dev->ops->max_ap_intf;
-- if_limit->types = BIT(NL80211_IFTYPE_AP) |
-- BIT(NL80211_IFTYPE_MESH_POINT);
-+ if_limit->types = BIT(NL80211_IFTYPE_AP);
-+#ifdef CONFIG_MAC80211_MESH
-+ if_limit->types |= BIT(NL80211_IFTYPE_MESH_POINT);
-+#endif
-
- /*
- * Build up AP interface combinations structure.
-@@ -1309,7 +1311,9 @@ int rt2x00lib_probe_dev(struct rt2x00_de
- rt2x00dev->hw->wiphy->interface_modes |=
- BIT(NL80211_IFTYPE_ADHOC) |
- BIT(NL80211_IFTYPE_AP) |
-+#ifdef CONFIG_MAC80211_MESH
- BIT(NL80211_IFTYPE_MESH_POINT) |
-+#endif
- BIT(NL80211_IFTYPE_WDS);
-
- rt2x00dev->hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
---- a/net/mac80211/rc80211_minstrel_ht.c
-+++ b/net/mac80211/rc80211_minstrel_ht.c
-@@ -17,8 +17,6 @@
- #include "rc80211_minstrel_ht.h"
-
- #define AVG_PKT_SIZE 1200
--#define SAMPLE_COLUMNS 10
--#define EWMA_LEVEL 75
-
- /* Number of bits for an average sized packet */
- #define MCS_NBITS (AVG_PKT_SIZE << 3)
-@@ -26,11 +24,11 @@
- /* Number of symbols for a packet with (bps) bits per symbol */
- #define MCS_NSYMS(bps) ((MCS_NBITS + (bps) - 1) / (bps))
-
--/* Transmission time for a packet containing (syms) symbols */
-+/* Transmission time (nanoseconds) for a packet containing (syms) symbols */
- #define MCS_SYMBOL_TIME(sgi, syms) \
- (sgi ? \
-- ((syms) * 18 + 4) / 5 : /* syms * 3.6 us */ \
-- (syms) << 2 /* syms * 4 us */ \
-+ ((syms) * 18000 + 4000) / 5 : /* syms * 3.6 us */ \
-+ ((syms) * 1000) << 2 /* syms * 4 us */ \
- )
-
- /* Transmit duration for the raw data part of an average sized packet */
-@@ -64,9 +62,9 @@
- }
-
- #define CCK_DURATION(_bitrate, _short, _len) \
-- (10 /* SIFS */ + \
-+ (1000 * (10 /* SIFS */ + \
- (_short ? 72 + 24 : 144 + 48 ) + \
-- (8 * (_len + 4) * 10) / (_bitrate))
-+ (8 * (_len + 4) * 10) / (_bitrate)))
-
- #define CCK_ACK_DURATION(_bitrate, _short) \
- (CCK_DURATION((_bitrate > 10 ? 20 : 10), false, 60) + \
-@@ -129,15 +127,6 @@ const struct mcs_group minstrel_mcs_grou
- static u8 sample_table[SAMPLE_COLUMNS][MCS_GROUP_RATES];
-
- /*
-- * Perform EWMA (Exponentially Weighted Moving Average) calculation
-- */
--static int
--minstrel_ewma(int old, int new, int weight)
--{
-- return (new * (100 - weight) + old * weight) / 100;
--}
--
--/*
- * Look up an MCS group index based on mac80211 rate information
- */
- static int
-@@ -211,20 +200,32 @@ static void
- minstrel_ht_calc_tp(struct minstrel_ht_sta *mi, int group, int rate)
- {
- struct minstrel_rate_stats *mr;
-- unsigned int usecs = 0;
-+ unsigned int nsecs = 0;
-+ unsigned int tp;
-+ unsigned int prob;
-
- mr = &mi->groups[group].rates[rate];
-+ prob = mr->probability;
-
-- if (mr->probability < MINSTREL_FRAC(1, 10)) {
-+ if (prob < MINSTREL_FRAC(1, 10)) {
- mr->cur_tp = 0;
- return;
- }
-
-+ /*
-+ * For the throughput calculation, limit the probability value to 90% to
-+ * account for collision related packet error rate fluctuation
-+ */
-+ if (prob > MINSTREL_FRAC(9, 10))
-+ prob = MINSTREL_FRAC(9, 10);
-+
- if (group != MINSTREL_CCK_GROUP)
-- usecs = mi->overhead / MINSTREL_TRUNC(mi->avg_ampdu_len);
-+ nsecs = 1000 * mi->overhead / MINSTREL_TRUNC(mi->avg_ampdu_len);
-+
-+ nsecs += minstrel_mcs_groups[group].duration[rate];
-+ tp = 1000000 * ((mr->probability * 1000) / nsecs);
-
-- usecs += minstrel_mcs_groups[group].duration[rate];
-- mr->cur_tp = MINSTREL_TRUNC((1000000 / usecs) * mr->probability);
-+ mr->cur_tp = MINSTREL_TRUNC(tp);
- }
-
- /*
-@@ -308,8 +309,8 @@ minstrel_ht_update_stats(struct minstrel
- }
- }
-
-- /* try to sample up to half of the available rates during each interval */
-- mi->sample_count *= 4;
-+ /* try to sample all available rates during each interval */
-+ mi->sample_count *= 8;
-
- cur_prob = 0;
- cur_prob_tp = 0;
-@@ -320,20 +321,13 @@ minstrel_ht_update_stats(struct minstrel
- if (!mg->supported)
- continue;
-
-- mr = minstrel_get_ratestats(mi, mg->max_prob_rate);
-- if (cur_prob_tp < mr->cur_tp &&
-- minstrel_mcs_groups[group].streams == 1) {
-- mi->max_prob_rate = mg->max_prob_rate;
-- cur_prob = mr->cur_prob;
-- cur_prob_tp = mr->cur_tp;
-- }
--
- mr = minstrel_get_ratestats(mi, mg->max_tp_rate);
- if (cur_tp < mr->cur_tp) {
- mi->max_tp_rate2 = mi->max_tp_rate;
- cur_tp2 = cur_tp;
- mi->max_tp_rate = mg->max_tp_rate;
- cur_tp = mr->cur_tp;
-+ mi->max_prob_streams = minstrel_mcs_groups[group].streams - 1;
- }
-
- mr = minstrel_get_ratestats(mi, mg->max_tp_rate2);
-@@ -343,6 +337,23 @@ minstrel_ht_update_stats(struct minstrel
- }
- }
-
-+ if (mi->max_prob_streams < 1)
-+ mi->max_prob_streams = 1;
-+
-+ for (group = 0; group < ARRAY_SIZE(minstrel_mcs_groups); group++) {
-+ mg = &mi->groups[group];
-+ if (!mg->supported)
-+ continue;
-+ mr = minstrel_get_ratestats(mi, mg->max_prob_rate);
-+ if (cur_prob_tp < mr->cur_tp &&
-+ minstrel_mcs_groups[group].streams <= mi->max_prob_streams) {
-+ mi->max_prob_rate = mg->max_prob_rate;
-+ cur_prob = mr->cur_prob;
-+ cur_prob_tp = mr->cur_tp;
-+ }
-+ }
-+
-+
- mi->stats_update = jiffies;
- }
-
-@@ -467,7 +478,7 @@ minstrel_ht_tx_status(void *priv, struct
-
- if (!mi->sample_wait && !mi->sample_tries && mi->sample_count > 0) {
- mi->sample_wait = 16 + 2 * MINSTREL_TRUNC(mi->avg_ampdu_len);
-- mi->sample_tries = 2;
-+ mi->sample_tries = 1;
- mi->sample_count--;
- }
-
-@@ -536,7 +547,7 @@ minstrel_calc_retransmit(struct minstrel
- mr->retry_updated = true;
-
- group = &minstrel_mcs_groups[index / MCS_GROUP_RATES];
-- tx_time_data = group->duration[index % MCS_GROUP_RATES] * ampdu_len;
-+ tx_time_data = group->duration[index % MCS_GROUP_RATES] * ampdu_len / 1000;
-
- /* Contention time for first 2 tries */
- ctime = (t_slot * cw) >> 1;
-@@ -616,6 +627,7 @@ minstrel_get_sample_rate(struct minstrel
- {
- struct minstrel_rate_stats *mr;
- struct minstrel_mcs_group_data *mg;
-+ unsigned int sample_dur, sample_group;
- int sample_idx = 0;
-
- if (mi->sample_wait > 0) {
-@@ -626,39 +638,46 @@ minstrel_get_sample_rate(struct minstrel
- if (!mi->sample_tries)
- return -1;
-
-- mi->sample_tries--;
- mg = &mi->groups[mi->sample_group];
- sample_idx = sample_table[mg->column][mg->index];
- mr = &mg->rates[sample_idx];
-- sample_idx += mi->sample_group * MCS_GROUP_RATES;
-+ sample_group = mi->sample_group;
-+ sample_idx += sample_group * MCS_GROUP_RATES;
- minstrel_next_sample_idx(mi);
-
- /*
- * Sampling might add some overhead (RTS, no aggregation)
- * to the frame. Hence, don't use sampling for the currently
-- * used max TP rate.
-+ * used rates.
- */
-- if (sample_idx == mi->max_tp_rate)
-+ if (sample_idx == mi->max_tp_rate ||
-+ sample_idx == mi->max_tp_rate2 ||
-+ sample_idx == mi->max_prob_rate)
- return -1;
-+
- /*
-- * When not using MRR, do not sample if the probability is already
-- * higher than 95% to avoid wasting airtime
-+ * Do not sample if the probability is already higher than 95%
-+ * to avoid wasting airtime.
- */
-- if (!mp->has_mrr && (mr->probability > MINSTREL_FRAC(95, 100)))
-+ if (mr->probability > MINSTREL_FRAC(95, 100))
- return -1;
-
- /*
- * Make sure that lower rates get sampled only occasionally,
- * if the link is working perfectly.
- */
-- if (minstrel_get_duration(sample_idx) >
-- minstrel_get_duration(mi->max_tp_rate)) {
-+ sample_dur = minstrel_get_duration(sample_idx);
-+ if (sample_dur >= minstrel_get_duration(mi->max_tp_rate2) &&
-+ (mi->max_prob_streams <
-+ minstrel_mcs_groups[sample_group].streams ||
-+ sample_dur >= minstrel_get_duration(mi->max_prob_rate))) {
- if (mr->sample_skipped < 20)
- return -1;
-
- if (mi->sample_slow++ > 2)
- return -1;
- }
-+ mi->sample_tries--;
-
- return sample_idx;
- }
---- a/net/mac80211/rc80211_minstrel_ht.h
-+++ b/net/mac80211/rc80211_minstrel_ht.h
-@@ -16,11 +16,6 @@
- #define MINSTREL_MAX_STREAMS 3
- #define MINSTREL_STREAM_GROUPS 4
-
--/* scaled fraction values */
--#define MINSTREL_SCALE 16
--#define MINSTREL_FRAC(val, div) (((val) << MINSTREL_SCALE) / div)
--#define MINSTREL_TRUNC(val) ((val) >> MINSTREL_SCALE)
--
- #define MCS_GROUP_RATES 8
-
- struct mcs_group {
-@@ -85,6 +80,7 @@ struct minstrel_ht_sta {
-
- /* best probability rate */
- unsigned int max_prob_rate;
-+ unsigned int max_prob_streams;
-
- /* time of last status update */
- unsigned long stats_update;
---- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
-@@ -1023,6 +1023,7 @@ static bool ar9003_hw_init_cal(struct at
- AR_PHY_AGC_CONTROL_FLTR_CAL |
- AR_PHY_AGC_CONTROL_PKDET_CAL;
-
-+ /* Use chip chainmask only for calibration */
- ar9003_hw_set_chain_masks(ah, ah->caps.rx_chainmask, ah->caps.tx_chainmask);
-
- if (rtt) {
-@@ -1150,6 +1151,9 @@ skip_tx_iqcal:
- ar9003_hw_rtt_disable(ah);
- }
-
-+ /* Revert chainmask to runtime parameters */
-+ ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
-+
- /* Initialize list pointers */
- ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL;
-
---- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
-@@ -3606,6 +3606,12 @@ static void ar9003_hw_ant_ctrl_apply(str
- value = ar9003_hw_ant_ctrl_common_2_get(ah, is2ghz);
- REG_RMW_FIELD(ah, AR_PHY_SWITCH_COM_2, AR_SWITCH_TABLE_COM2_ALL, value);
-
-+ if ((AR_SREV_9462(ah)) && (ah->rxchainmask == 0x2)) {
-+ value = ar9003_hw_ant_ctrl_chain_get(ah, 1, is2ghz);
-+ REG_RMW_FIELD(ah, switch_chain_reg[0],
-+ AR_SWITCH_TABLE_ALL, value);
-+ }
-+
- for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) {
- if ((ah->rxchainmask & BIT(chain)) ||
- (ah->txchainmask & BIT(chain))) {
-@@ -3772,6 +3778,17 @@ static void ar9003_hw_atten_apply(struct
- AR_PHY_EXT_ATTEN_CTL_2,
- };
-
-+ if ((AR_SREV_9462(ah)) && (ah->rxchainmask == 0x2)) {
-+ value = ar9003_hw_atten_chain_get(ah, 1, chan);
-+ REG_RMW_FIELD(ah, ext_atten_reg[0],
-+ AR_PHY_EXT_ATTEN_CTL_XATTEN1_DB, value);
-+
-+ value = ar9003_hw_atten_chain_get_margin(ah, 1, chan);
-+ REG_RMW_FIELD(ah, ext_atten_reg[0],
-+ AR_PHY_EXT_ATTEN_CTL_XATTEN1_MARGIN,
-+ value);
-+ }
-+
- /* Test value. if 0 then attenuation is unused. Don't load anything. */
- for (i = 0; i < 3; i++) {
- if (ah->txchainmask & BIT(i)) {
---- a/drivers/net/wireless/ath/ath9k/link.c
-+++ b/drivers/net/wireless/ath/ath9k/link.c
-@@ -28,21 +28,21 @@ void ath_tx_complete_poll_work(struct wo
- int i;
- bool needreset = false;
-
-- for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
-- if (ATH_TXQ_SETUP(sc, i)) {
-- txq = &sc->tx.txq[i];
-- ath_txq_lock(sc, txq);
-- if (txq->axq_depth) {
-- if (txq->axq_tx_inprogress) {
-- needreset = true;
-- ath_txq_unlock(sc, txq);
-- break;
-- } else {
-- txq->axq_tx_inprogress = true;
-- }
-+ for (i = 0; i < IEEE80211_NUM_ACS; i++) {
-+ txq = sc->tx.txq_map[i];
-+
-+ ath_txq_lock(sc, txq);
-+ if (txq->axq_depth) {
-+ if (txq->axq_tx_inprogress) {
-+ needreset = true;
-+ ath_txq_unlock(sc, txq);
-+ break;
-+ } else {
-+ txq->axq_tx_inprogress = true;
- }
-- ath_txq_unlock_complete(sc, txq);
- }
-+ ath_txq_unlock_complete(sc, txq);
-+ }
-
- if (needreset) {
- ath_dbg(ath9k_hw_common(sc->sc_ah), RESET,
---- a/net/mac80211/sta_info.c
-+++ b/net/mac80211/sta_info.c
-@@ -766,6 +766,7 @@ int __must_check __sta_info_destroy(stru
- struct ieee80211_local *local;
- struct ieee80211_sub_if_data *sdata;
- int ret, i;
-+ bool have_key = false;
-
- might_sleep();
-
-@@ -793,12 +794,19 @@ int __must_check __sta_info_destroy(stru
- list_del_rcu(&sta->list);
-
- mutex_lock(&local->key_mtx);
-- for (i = 0; i < NUM_DEFAULT_KEYS; i++)
-+ for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
- __ieee80211_key_free(key_mtx_dereference(local, sta->gtk[i]));
-- if (sta->ptk)
-+ have_key = true;
-+ }
-+ if (sta->ptk) {
- __ieee80211_key_free(key_mtx_dereference(local, sta->ptk));
-+ have_key = true;
-+ }
- mutex_unlock(&local->key_mtx);
-
-+ if (!have_key)
-+ synchronize_net();
-+
- sta->dead = true;
-
- local->num_sta--;
---- a/net/mac80211/chan.c
-+++ b/net/mac80211/chan.c
-@@ -63,6 +63,7 @@ ieee80211_new_chanctx(struct ieee80211_l
- enum ieee80211_chanctx_mode mode)
- {
- struct ieee80211_chanctx *ctx;
-+ u32 changed;
- int err;
-
- lockdep_assert_held(&local->chanctx_mtx);
-@@ -76,6 +77,13 @@ ieee80211_new_chanctx(struct ieee80211_l
- ctx->conf.rx_chains_dynamic = 1;
- ctx->mode = mode;
-
-+ /* acquire mutex to prevent idle from changing */
-+ mutex_lock(&local->mtx);
-+ /* turn idle off *before* setting channel -- some drivers need that */
-+ changed = ieee80211_idle_off(local);
-+ if (changed)
-+ ieee80211_hw_config(local, changed);
-+
- if (!local->use_chanctx) {
- local->_oper_channel_type =
- cfg80211_get_chandef_type(chandef);
-@@ -85,14 +93,17 @@ ieee80211_new_chanctx(struct ieee80211_l
- err = drv_add_chanctx(local, ctx);
- if (err) {
- kfree(ctx);
-- return ERR_PTR(err);
-+ ctx = ERR_PTR(err);
-+
-+ ieee80211_recalc_idle(local);
-+ goto out;
- }
- }
-
-+ /* and keep the mutex held until the new chanctx is on the list */
- list_add_rcu(&ctx->list, &local->chanctx_list);
-
-- mutex_lock(&local->mtx);
-- ieee80211_recalc_idle(local);
-+ out:
- mutex_unlock(&local->mtx);
-
- return ctx;
---- a/net/mac80211/ieee80211_i.h
-+++ b/net/mac80211/ieee80211_i.h
-@@ -1366,6 +1366,7 @@ int ieee80211_if_change_type(struct ieee
- enum nl80211_iftype type);
- void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
- void ieee80211_remove_interfaces(struct ieee80211_local *local);
-+u32 ieee80211_idle_off(struct ieee80211_local *local);
- void ieee80211_recalc_idle(struct ieee80211_local *local);
- void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
- const int offset);
---- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
-+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
-@@ -799,7 +799,7 @@ static int ath9k_init_firmware_version(s
- * required version.
- */
- if (priv->fw_version_major != MAJOR_VERSION_REQ ||
-- priv->fw_version_minor != MINOR_VERSION_REQ) {
-+ priv->fw_version_minor < MINOR_VERSION_REQ) {
- dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n",
- MAJOR_VERSION_REQ, MINOR_VERSION_REQ);
- return -EINVAL;
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -516,8 +516,7 @@ static void ath_tx_complete_aggr(struct
- * not a holding desc.
- */
- INIT_LIST_HEAD(&bf_head);
-- if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) ||
-- bf_next != NULL || !bf_last->bf_stale)
-+ if (bf_next != NULL || !bf_last->bf_stale)
- list_move_tail(&bf->list, &bf_head);
-
- if (!txpending || (tid->state & AGGR_CLEANUP)) {
-@@ -537,8 +536,7 @@ static void ath_tx_complete_aggr(struct
- !txfail);
- } else {
- /* retry the un-acked ones */
-- if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
-- bf->bf_next == NULL && bf_last->bf_stale) {
-+ if (bf->bf_next == NULL && bf_last->bf_stale) {
- struct ath_buf *tbf;
-
- tbf = ath_clone_txbuf(sc, bf_last);
-@@ -2264,6 +2262,7 @@ void ath_tx_edma_tasklet(struct ath_soft
- struct ath_txq *txq;
- struct ath_buf *bf, *lastbf;
- struct list_head bf_head;
-+ struct list_head *fifo_list;
- int status;
-
- for (;;) {
-@@ -2291,20 +2290,24 @@ void ath_tx_edma_tasklet(struct ath_soft
-
- TX_STAT_INC(txq->axq_qnum, txprocdesc);
-
-- if (list_empty(&txq->txq_fifo[txq->txq_tailidx])) {
-+ fifo_list = &txq->txq_fifo[txq->txq_tailidx];
-+ if (list_empty(fifo_list)) {
- ath_txq_unlock(sc, txq);
- return;
- }
-
-- bf = list_first_entry(&txq->txq_fifo[txq->txq_tailidx],
-- struct ath_buf, list);
-+ bf = list_first_entry(fifo_list, struct ath_buf, list);
-+ if (bf->bf_stale) {
-+ list_del(&bf->list);
-+ ath_tx_return_buffer(sc, bf);
-+ bf = list_first_entry(fifo_list, struct ath_buf, list);
-+ }
-+
- lastbf = bf->bf_lastbf;
-
- INIT_LIST_HEAD(&bf_head);
-- list_cut_position(&bf_head, &txq->txq_fifo[txq->txq_tailidx],
-- &lastbf->list);
--
-- if (list_empty(&txq->txq_fifo[txq->txq_tailidx])) {
-+ if (list_is_last(&lastbf->list, fifo_list)) {
-+ list_splice_tail_init(fifo_list, &bf_head);
- INCR(txq->txq_tailidx, ATH_TXFIFO_DEPTH);
-
- if (!list_empty(&txq->axq_q)) {
-@@ -2315,6 +2318,11 @@ void ath_tx_edma_tasklet(struct ath_soft
- list_splice_tail_init(&txq->axq_q, &bf_q);
- ath_tx_txqaddbuf(sc, txq, &bf_q, true);
- }
-+ } else {
-+ lastbf->bf_stale = true;
-+ if (bf != lastbf)
-+ list_cut_position(&bf_head, fifo_list,
-+ lastbf->list.prev);
- }
-
- ath_tx_process_buffer(sc, txq, &ts, bf, &bf_head);
---- a/drivers/net/wireless/ath/ath9k/ar9580_1p0_initvals.h
-+++ b/drivers/net/wireless/ath/ath9k/ar9580_1p0_initvals.h
-@@ -519,7 +519,7 @@ static const u32 ar9580_1p0_mac_core[][2
- {0x00008258, 0x00000000},
- {0x0000825c, 0x40000000},
- {0x00008260, 0x00080922},
-- {0x00008264, 0x9bc00010},
-+ {0x00008264, 0x9d400010},
- {0x00008268, 0xffffffff},
- {0x0000826c, 0x0000ffff},
- {0x00008270, 0x00000000},
---- a/net/mac80211/mlme.c
-+++ b/net/mac80211/mlme.c
-@@ -3955,8 +3955,16 @@ int ieee80211_mgd_auth(struct ieee80211_
- /* prep auth_data so we don't go into idle on disassoc */
- ifmgd->auth_data = auth_data;
-
-- if (ifmgd->associated)
-- ieee80211_set_disassoc(sdata, 0, 0, false, NULL);
-+ if (ifmgd->associated) {
-+ u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
+@@ -344,6 +342,11 @@ struct sta_info {
+ int last_signal;
+ struct ewma avg_signal;
+ int last_ack_signal;
+
-+ ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
-+ WLAN_REASON_UNSPECIFIED,
-+ false, frame_buf);
++ u8 chains;
++ s8 chain_signal_last[IEEE80211_MAX_CHAINS];
++ struct ewma chain_signal_avg[IEEE80211_MAX_CHAINS];
+
-+ __cfg80211_send_deauth(sdata->dev, frame_buf,
-+ sizeof(frame_buf));
-+ }
+ /* Plus 1 for non-QoS frames */
+ __le16 last_seq_ctrl[IEEE80211_NUM_TIDS + 1];
+
+--- a/net/mac80211/trace.h
++++ b/net/mac80211/trace.h
+@@ -990,23 +990,23 @@ TRACE_EVENT(drv_channel_switch,
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
++ CHANDEF_ENTRY
+ __field(u64, timestamp)
+ __field(bool, block_tx)
+- __field(u16, freq)
+ __field(u8, count)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
++ CHANDEF_ASSIGN(&ch_switch->chandef)
+ __entry->timestamp = ch_switch->timestamp;
+ __entry->block_tx = ch_switch->block_tx;
+- __entry->freq = ch_switch->channel->center_freq;
+ __entry->count = ch_switch->count;
+ ),
+
+ TP_printk(
+- LOCAL_PR_FMT " new freq:%u count:%d",
+- LOCAL_PR_ARG, __entry->freq, __entry->count
++ LOCAL_PR_FMT " new " CHANDEF_PR_FMT " count:%d",
++ LOCAL_PR_ARG, CHANDEF_PR_ARG, __entry->count
+ )
+ );
- sdata_info(sdata, "authenticate with %pM\n", req->bss->bssid);
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -48,15 +48,15 @@ static __le16 ieee80211_duration(struct
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-@@ -4016,8 +4024,16 @@ int ieee80211_mgd_assoc(struct ieee80211
+ /* assume HW handles this */
+- if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
++ if (tx->rate.flags & IEEE80211_TX_RC_MCS)
+ return 0;
- mutex_lock(&ifmgd->mtx);
+ /* uh huh? */
+- if (WARN_ON_ONCE(info->control.rates[0].idx < 0))
++ if (WARN_ON_ONCE(tx->rate.idx < 0))
+ return 0;
-- if (ifmgd->associated)
-- ieee80211_set_disassoc(sdata, 0, 0, false, NULL);
-+ if (ifmgd->associated) {
-+ u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
+ sband = local->hw.wiphy->bands[info->band];
+- txrate = &sband->bitrates[info->control.rates[0].idx];
++ txrate = &sband->bitrates[tx->rate.idx];
+
+ erp = txrate->flags & IEEE80211_RATE_ERP_G;
+
+@@ -617,11 +617,9 @@ ieee80211_tx_h_rate_ctrl(struct ieee8021
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+ struct ieee80211_hdr *hdr = (void *)tx->skb->data;
+ struct ieee80211_supported_band *sband;
+- struct ieee80211_rate *rate;
+- int i;
+ u32 len;
+- bool inval = false, rts = false, short_preamble = false;
+ struct ieee80211_tx_rate_control txrc;
++ struct ieee80211_sta_rates *ratetbl = NULL;
+ bool assoc = false;
+
+ memset(&txrc, 0, sizeof(txrc));
+@@ -642,18 +640,23 @@ ieee80211_tx_h_rate_ctrl(struct ieee8021
+ txrc.max_rate_idx = -1;
+ else
+ txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1;
+- memcpy(txrc.rate_idx_mcs_mask,
+- tx->sdata->rc_rateidx_mcs_mask[info->band],
+- sizeof(txrc.rate_idx_mcs_mask));
+
-+ ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
-+ WLAN_REASON_UNSPECIFIED,
-+ false, frame_buf);
++ if (tx->sdata->rc_has_mcs_mask[info->band])
++ txrc.rate_idx_mcs_mask =
++ tx->sdata->rc_rateidx_mcs_mask[info->band];
+
-+ __cfg80211_send_deauth(sdata->dev, frame_buf,
-+ sizeof(frame_buf));
-+ }
-
- if (ifmgd->auth_data && !ifmgd->auth_data->done) {
- err = -EBUSY;
---- a/net/mac80211/rc80211_minstrel.c
-+++ b/net/mac80211/rc80211_minstrel.c
-@@ -55,7 +55,6 @@
- #include "rate.h"
- #include "rc80211_minstrel.h"
+ txrc.bss = (tx->sdata->vif.type == NL80211_IFTYPE_AP ||
+ tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
+ tx->sdata->vif.type == NL80211_IFTYPE_ADHOC);
+
+ /* set up RTS protection if desired */
+ if (len > tx->local->hw.wiphy->rts_threshold) {
+- txrc.rts = rts = true;
++ txrc.rts = true;
+ }
--#define SAMPLE_COLUMNS 10
- #define SAMPLE_TBL(_mi, _idx, _col) \
- _mi->sample_table[(_idx * SAMPLE_COLUMNS) + _col]
++ info->control.use_rts = txrc.rts;
++ info->control.use_cts_prot = tx->sdata->vif.bss_conf.use_cts_prot;
++
+ /*
+ * Use short preamble if the BSS can handle it, but not for
+ * management frames unless we know the receiver can handle
+@@ -663,7 +666,9 @@ ieee80211_tx_h_rate_ctrl(struct ieee8021
+ if (tx->sdata->vif.bss_conf.use_short_preamble &&
+ (ieee80211_is_data(hdr->frame_control) ||
+ (tx->sta && test_sta_flag(tx->sta, WLAN_STA_SHORT_PREAMBLE))))
+- txrc.short_preamble = short_preamble = true;
++ txrc.short_preamble = true;
++
++ info->control.short_preamble = txrc.short_preamble;
-@@ -70,16 +69,31 @@ rix_to_ndx(struct minstrel_sta_info *mi,
- return i;
- }
+ if (tx->sta)
+ assoc = test_sta_flag(tx->sta, WLAN_STA_ASSOC);
+@@ -687,16 +692,38 @@ ieee80211_tx_h_rate_ctrl(struct ieee8021
+ */
+ rate_control_get_rate(tx->sdata, tx->sta, &txrc);
-+/* find & sort topmost throughput rates */
-+static inline void
-+minstrel_sort_best_tp_rates(struct minstrel_sta_info *mi, int i, u8 *tp_list)
-+{
-+ int j = MAX_THR_RATES;
-+
-+ while (j > 0 && mi->r[i].cur_tp > mi->r[tp_list[j - 1]].cur_tp)
-+ j--;
-+ if (j < MAX_THR_RATES - 1)
-+ memmove(&tp_list[j + 1], &tp_list[j], MAX_THR_RATES - (j + 1));
-+ if (j < MAX_THR_RATES)
-+ tp_list[j] = i;
-+}
+- if (unlikely(info->control.rates[0].idx < 0))
+- return TX_DROP;
++ if (tx->sta && !info->control.skip_table)
++ ratetbl = rcu_dereference(tx->sta->sta.rates);
+
- static void
- minstrel_update_stats(struct minstrel_priv *mp, struct minstrel_sta_info *mi)
- {
-- u32 max_tp = 0, index_max_tp = 0, index_max_tp2 = 0;
-- u32 max_prob = 0, index_max_prob = 0;
-+ u8 tmp_tp_rate[MAX_THR_RATES];
-+ u8 tmp_prob_rate = 0;
- u32 usecs;
-- u32 p;
- int i;
-
-- mi->stats_update = jiffies;
-+ for (i=0; i < MAX_THR_RATES; i++)
-+ tmp_tp_rate[i] = 0;
++ if (unlikely(info->control.rates[0].idx < 0)) {
++ if (ratetbl) {
++ struct ieee80211_tx_rate rate = {
++ .idx = ratetbl->rate[0].idx,
++ .flags = ratetbl->rate[0].flags,
++ .count = ratetbl->rate[0].count
++ };
+
- for (i = 0; i < mi->n_rates; i++) {
- struct minstrel_rate *mr = &mi->r[i];
++ if (ratetbl->rate[0].idx < 0)
++ return TX_DROP;
++
++ tx->rate = rate;
++ } else {
++ return TX_DROP;
++ }
++ } else {
++ tx->rate = info->control.rates[0];
++ }
+
+ if (txrc.reported_rate.idx < 0) {
+- txrc.reported_rate = info->control.rates[0];
++ txrc.reported_rate = tx->rate;
+ if (tx->sta && ieee80211_is_data(hdr->frame_control))
+ tx->sta->last_tx_rate = txrc.reported_rate;
+ } else if (tx->sta)
+ tx->sta->last_tx_rate = txrc.reported_rate;
-@@ -87,27 +101,32 @@ minstrel_update_stats(struct minstrel_pr
- if (!usecs)
- usecs = 1000000;
-
-- /* To avoid rounding issues, probabilities scale from 0 (0%)
-- * to 18000 (100%) */
-- if (mr->attempts) {
-- p = (mr->success * 18000) / mr->attempts;
-+ if (unlikely(mr->attempts > 0)) {
-+ mr->sample_skipped = 0;
-+ mr->cur_prob = MINSTREL_FRAC(mr->success, mr->attempts);
- mr->succ_hist += mr->success;
- mr->att_hist += mr->attempts;
-- mr->cur_prob = p;
-- p = ((p * (100 - mp->ewma_level)) + (mr->probability *
-- mp->ewma_level)) / 100;
-- mr->probability = p;
-- mr->cur_tp = p * (1000000 / usecs);
++ if (ratetbl)
++ return TX_CONTINUE;
++
+ if (unlikely(!info->control.rates[0].count))
+ info->control.rates[0].count = 1;
+
+@@ -704,91 +731,6 @@ ieee80211_tx_h_rate_ctrl(struct ieee8021
+ (info->flags & IEEE80211_TX_CTL_NO_ACK)))
+ info->control.rates[0].count = 1;
+
+- if (is_multicast_ether_addr(hdr->addr1)) {
+- /*
+- * XXX: verify the rate is in the basic rateset
+- */
+- return TX_CONTINUE;
+- }
+-
+- /*
+- * set up the RTS/CTS rate as the fastest basic rate
+- * that is not faster than the data rate
+- *
+- * XXX: Should this check all retry rates?
+- */
+- if (!(info->control.rates[0].flags & IEEE80211_TX_RC_MCS)) {
+- s8 baserate = 0;
+-
+- rate = &sband->bitrates[info->control.rates[0].idx];
+-
+- for (i = 0; i < sband->n_bitrates; i++) {
+- /* must be a basic rate */
+- if (!(tx->sdata->vif.bss_conf.basic_rates & BIT(i)))
+- continue;
+- /* must not be faster than the data rate */
+- if (sband->bitrates[i].bitrate > rate->bitrate)
+- continue;
+- /* maximum */
+- if (sband->bitrates[baserate].bitrate <
+- sband->bitrates[i].bitrate)
+- baserate = i;
- }
-+ mr->probability = minstrel_ewma(mr->probability,
-+ mr->cur_prob,
-+ EWMA_LEVEL);
-+ } else
-+ mr->sample_skipped++;
-
- mr->last_success = mr->success;
- mr->last_attempts = mr->attempts;
- mr->success = 0;
- mr->attempts = 0;
-
-+ /* Update throughput per rate, reset thr. below 10% success */
-+ if (mr->probability < MINSTREL_FRAC(10, 100))
-+ mr->cur_tp = 0;
-+ else
-+ mr->cur_tp = mr->probability * (1000000 / usecs);
-+
- /* Sample less often below the 10% chance of success.
- * Sample less often above the 95% chance of success. */
-- if ((mr->probability > 17100) || (mr->probability < 1800)) {
-+ if (mr->probability > MINSTREL_FRAC(95, 100) ||
-+ mr->probability < MINSTREL_FRAC(10, 100)) {
- mr->adjusted_retry_count = mr->retry_count >> 1;
- if (mr->adjusted_retry_count > 2)
- mr->adjusted_retry_count = 2;
-@@ -118,35 +137,30 @@ minstrel_update_stats(struct minstrel_pr
- }
- if (!mr->adjusted_retry_count)
- mr->adjusted_retry_count = 2;
+-
+- info->control.rts_cts_rate_idx = baserate;
- }
-
-- for (i = 0; i < mi->n_rates; i++) {
-- struct minstrel_rate *mr = &mi->r[i];
-- if (max_tp < mr->cur_tp) {
-- index_max_tp = i;
-- max_tp = mr->cur_tp;
+-
+- for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
+- /*
+- * make sure there's no valid rate following
+- * an invalid one, just in case drivers don't
+- * take the API seriously to stop at -1.
+- */
+- if (inval) {
+- info->control.rates[i].idx = -1;
+- continue;
+- }
+- if (info->control.rates[i].idx < 0) {
+- inval = true;
+- continue;
- }
-- if (max_prob < mr->probability) {
-- index_max_prob = i;
-- max_prob = mr->probability;
-+ minstrel_sort_best_tp_rates(mi, i, tmp_tp_rate);
-+
-+ /* To determine the most robust rate (max_prob_rate) used at
-+ * 3rd mmr stage we distinct between two cases:
-+ * (1) if any success probabilitiy >= 95%, out of those rates
-+ * choose the maximum throughput rate as max_prob_rate
-+ * (2) if all success probabilities < 95%, the rate with
-+ * highest success probability is choosen as max_prob_rate */
-+ if (mr->probability >= MINSTREL_FRAC(95,100)) {
-+ if (mr->cur_tp >= mi->r[tmp_prob_rate].cur_tp)
-+ tmp_prob_rate = i;
-+ } else {
-+ if (mr->probability >= mi->r[tmp_prob_rate].probability)
-+ tmp_prob_rate = i;
- }
- }
-
-- max_tp = 0;
-- for (i = 0; i < mi->n_rates; i++) {
-- struct minstrel_rate *mr = &mi->r[i];
-
-- if (i == index_max_tp)
+- /*
+- * For now assume MCS is already set up correctly, this
+- * needs to be fixed.
+- */
+- if (info->control.rates[i].flags & IEEE80211_TX_RC_MCS) {
+- WARN_ON(info->control.rates[i].idx > 76);
+- continue;
+- }
+-
+- /* set up RTS protection if desired */
+- if (rts)
+- info->control.rates[i].flags |=
+- IEEE80211_TX_RC_USE_RTS_CTS;
+-
+- /* RC is busted */
+- if (WARN_ON_ONCE(info->control.rates[i].idx >=
+- sband->n_bitrates)) {
+- info->control.rates[i].idx = -1;
- continue;
-+ /* Assign the new rate set */
-+ memcpy(mi->max_tp_rate, tmp_tp_rate, sizeof(mi->max_tp_rate));
-+ mi->max_prob_rate = tmp_prob_rate;
-
-- if (max_tp < mr->cur_tp) {
-- index_max_tp2 = i;
-- max_tp = mr->cur_tp;
- }
+-
+- rate = &sband->bitrates[info->control.rates[i].idx];
+-
+- /* set up short preamble */
+- if (short_preamble &&
+- rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
+- info->control.rates[i].flags |=
+- IEEE80211_TX_RC_USE_SHORT_PREAMBLE;
+-
+- /* set up G protection */
+- if (!rts && tx->sdata->vif.bss_conf.use_cts_prot &&
+- rate->flags & IEEE80211_RATE_ERP_G)
+- info->control.rates[i].flags |=
+- IEEE80211_TX_RC_USE_CTS_PROTECT;
- }
-- mi->max_tp_rate = index_max_tp;
-- mi->max_tp_rate2 = index_max_tp2;
-- mi->max_prob_rate = index_max_prob;
-+ /* Reset update timer */
-+ mi->stats_update = jiffies;
+-
+ return TX_CONTINUE;
}
- static void
-@@ -207,10 +221,10 @@ static int
- minstrel_get_next_sample(struct minstrel_sta_info *mi)
+@@ -2508,8 +2450,6 @@ struct sk_buff *ieee80211_beacon_get_tim
+ txrc.max_rate_idx = -1;
+ else
+ txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1;
+- memcpy(txrc.rate_idx_mcs_mask, sdata->rc_rateidx_mcs_mask[band],
+- sizeof(txrc.rate_idx_mcs_mask));
+ txrc.bss = true;
+ rate_control_get_rate(sdata, NULL, &txrc);
+
+--- a/net/mac80211/util.c
++++ b/net/mac80211/util.c
+@@ -485,7 +485,8 @@ int ieee80211_queue_stopped(struct ieee8
+ return true;
+
+ spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+- ret = !!local->queue_stop_reasons[queue];
++ ret = test_bit(IEEE80211_QUEUE_STOP_REASON_DRIVER,
++ &local->queue_stop_reasons[queue]);
+ spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+ return ret;
+ }
+@@ -660,7 +661,7 @@ void ieee80211_queue_delayed_work(struct
+ }
+ EXPORT_SYMBOL(ieee80211_queue_delayed_work);
+
+-u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
++u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, bool action,
+ struct ieee802_11_elems *elems,
+ u64 filter, u32 crc)
{
- unsigned int sample_ndx;
-- sample_ndx = SAMPLE_TBL(mi, mi->sample_idx, mi->sample_column);
-- mi->sample_idx++;
-- if ((int) mi->sample_idx > (mi->n_rates - 2)) {
-- mi->sample_idx = 0;
-+ sample_ndx = SAMPLE_TBL(mi, mi->sample_row, mi->sample_column);
-+ mi->sample_row++;
-+ if ((int) mi->sample_row >= mi->n_rates) {
-+ mi->sample_row = 0;
- mi->sample_column++;
- if (mi->sample_column >= SAMPLE_COLUMNS)
- mi->sample_column = 0;
-@@ -228,31 +242,37 @@ minstrel_get_rate(void *priv, struct iee
- struct minstrel_priv *mp = priv;
- struct ieee80211_tx_rate *ar = info->control.rates;
- unsigned int ndx, sample_ndx = 0;
-- bool mrr;
-- bool sample_slower = false;
-- bool sample = false;
-+ bool mrr_capable;
-+ bool indirect_rate_sampling = false;
-+ bool rate_sampling = false;
- int i, delta;
- int mrr_ndx[3];
-- int sample_rate;
-+ int sampling_ratio;
-
-+ /* management/no-ack frames do not use rate control */
- if (rate_control_send_low(sta, priv_sta, txrc))
+@@ -668,6 +669,7 @@ u32 ieee802_11_parse_elems_crc(u8 *start
+ u8 *pos = start;
+ bool calc_crc = filter != 0;
+ DECLARE_BITMAP(seen_elems, 256);
++ const u8 *ie;
+
+ bitmap_zero(seen_elems, 256);
+ memset(elems, 0, sizeof(*elems));
+@@ -715,6 +717,12 @@ u32 ieee802_11_parse_elems_crc(u8 *start
+ case WLAN_EID_COUNTRY:
+ case WLAN_EID_PWR_CONSTRAINT:
+ case WLAN_EID_TIMEOUT_INTERVAL:
++ case WLAN_EID_SECONDARY_CHANNEL_OFFSET:
++ case WLAN_EID_WIDE_BW_CHANNEL_SWITCH:
++ /*
++ * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible
++ * that if the content gets bigger it might be needed more than once
++ */
+ if (test_bit(id, seen_elems)) {
+ elems->parse_error = true;
+ left -= elen;
+@@ -862,6 +870,48 @@ u32 ieee802_11_parse_elems_crc(u8 *start
+ }
+ elems->ch_switch_ie = (void *)pos;
+ break;
++ case WLAN_EID_EXT_CHANSWITCH_ANN:
++ if (elen != sizeof(struct ieee80211_ext_chansw_ie)) {
++ elem_parse_failed = true;
++ break;
++ }
++ elems->ext_chansw_ie = (void *)pos;
++ break;
++ case WLAN_EID_SECONDARY_CHANNEL_OFFSET:
++ if (elen != sizeof(struct ieee80211_sec_chan_offs_ie)) {
++ elem_parse_failed = true;
++ break;
++ }
++ elems->sec_chan_offs = (void *)pos;
++ break;
++ case WLAN_EID_WIDE_BW_CHANNEL_SWITCH:
++ if (!action ||
++ elen != sizeof(*elems->wide_bw_chansw_ie)) {
++ elem_parse_failed = true;
++ break;
++ }
++ elems->wide_bw_chansw_ie = (void *)pos;
++ break;
++ case WLAN_EID_CHANNEL_SWITCH_WRAPPER:
++ if (action) {
++ elem_parse_failed = true;
++ break;
++ }
++ /*
++ * This is a bit tricky, but as we only care about
++ * the wide bandwidth channel switch element, so
++ * just parse it out manually.
++ */
++ ie = cfg80211_find_ie(WLAN_EID_WIDE_BW_CHANNEL_SWITCH,
++ pos, elen);
++ if (ie) {
++ if (ie[1] == sizeof(*elems->wide_bw_chansw_ie))
++ elems->wide_bw_chansw_ie =
++ (void *)(ie + 2);
++ else
++ elem_parse_failed = true;
++ }
++ break;
+ case WLAN_EID_COUNTRY:
+ elems->country_elem = pos;
+ elems->country_elem_len = elen;
+--- a/net/wireless/reg.c
++++ b/net/wireless/reg.c
+@@ -857,7 +857,7 @@ static void handle_channel(struct wiphy
+ return;
+
+ REG_DBG_PRINT("Disabling freq %d MHz\n", chan->center_freq);
+- chan->flags = IEEE80211_CHAN_DISABLED;
++ chan->flags |= IEEE80211_CHAN_DISABLED;
return;
+ }
-- mrr = mp->has_mrr && !txrc->rts && !txrc->bss_conf->use_cts_prot;
--
-- ndx = mi->max_tp_rate;
--
-- if (mrr)
-- sample_rate = mp->lookaround_rate_mrr;
-+ /* check multi-rate-retry capabilities & adjust lookaround_rate */
-+ mrr_capable = mp->has_mrr &&
-+ !txrc->rts &&
-+ !txrc->bss_conf->use_cts_prot;
-+ if (mrr_capable)
-+ sampling_ratio = mp->lookaround_rate_mrr;
- else
-- sample_rate = mp->lookaround_rate;
-+ sampling_ratio = mp->lookaround_rate;
-+
-+ /* init rateindex [ndx] with max throughput rate */
-+ ndx = mi->max_tp_rate[0];
+--- a/net/wireless/util.c
++++ b/net/wireless/util.c
+@@ -1156,6 +1156,26 @@ int cfg80211_get_p2p_attr(const u8 *ies,
+ }
+ EXPORT_SYMBOL(cfg80211_get_p2p_attr);
-+ /* increase sum packet counter */
- mi->packet_count++;
-- delta = (mi->packet_count * sample_rate / 100) -
++bool ieee80211_operating_class_to_band(u8 operating_class,
++ enum ieee80211_band *band)
++{
++ switch (operating_class) {
++ case 112:
++ case 115 ... 127:
++ *band = IEEE80211_BAND_5GHZ;
++ return true;
++ case 81:
++ case 82:
++ case 83:
++ case 84:
++ *band = IEEE80211_BAND_2GHZ;
++ return true;
++ }
+
-+ delta = (mi->packet_count * sampling_ratio / 100) -
- (mi->sample_count + mi->sample_deferred / 2);
++ return false;
++}
++EXPORT_SYMBOL(ieee80211_operating_class_to_band);
++
+ int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
+ u32 beacon_int)
+ {
+--- a/include/uapi/linux/nl80211.h
++++ b/include/uapi/linux/nl80211.h
+@@ -1973,6 +1973,10 @@ enum nl80211_sta_bss_param {
+ * @NL80211_STA_INFO_PEER_PM: peer mesh STA link-specific power mode
+ * @NL80211_STA_INFO_NONPEER_PM: neighbor mesh STA power save mode towards
+ * non-peer STA
++ * @NL80211_STA_INFO_CHAIN_SIGNAL: per-chain signal strength of last PPDU
++ * Contains a nested array of signal strength attributes (u8, dBm)
++ * @NL80211_STA_INFO_CHAIN_SIGNAL_AVG: per-chain signal strength average
++ * Same format as NL80211_STA_INFO_CHAIN_SIGNAL.
+ * @__NL80211_STA_INFO_AFTER_LAST: internal
+ * @NL80211_STA_INFO_MAX: highest possible station info attribute
+ */
+@@ -2002,6 +2006,8 @@ enum nl80211_sta_info {
+ NL80211_STA_INFO_NONPEER_PM,
+ NL80211_STA_INFO_RX_BYTES64,
+ NL80211_STA_INFO_TX_BYTES64,
++ NL80211_STA_INFO_CHAIN_SIGNAL,
++ NL80211_STA_INFO_CHAIN_SIGNAL_AVG,
+
+ /* keep last */
+ __NL80211_STA_INFO_AFTER_LAST,
+--- a/net/mac80211/sta_info.c
++++ b/net/mac80211/sta_info.c
+@@ -358,6 +358,8 @@ struct sta_info *sta_info_alloc(struct i
+ do_posix_clock_monotonic_gettime(&uptime);
+ sta->last_connected = uptime.tv_sec;
+ ewma_init(&sta->avg_signal, 1024, 8);
++ for (i = 0; i < ARRAY_SIZE(sta->chain_signal_avg); i++)
++ ewma_init(&sta->chain_signal_avg[i], 1024, 8);
+
+ if (sta_prepare_rate_control(local, sta, gfp)) {
+ kfree(sta);
+--- a/net/wireless/nl80211.c
++++ b/net/wireless/nl80211.c
+@@ -3367,6 +3367,32 @@ static bool nl80211_put_sta_rate(struct
+ return true;
+ }
- /* delta > 0: sampling required */
-- if ((delta > 0) && (mrr || !mi->prev_sample)) {
-+ if ((delta > 0) && (mrr_capable || !mi->prev_sample)) {
- struct minstrel_rate *msr;
- if (mi->packet_count >= 10000) {
- mi->sample_deferred = 0;
-@@ -271,21 +291,28 @@ minstrel_get_rate(void *priv, struct iee
- mi->sample_count += (delta - mi->n_rates * 2);
- }
++static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
++ int id)
++{
++ void *attr;
++ int i = 0;
++
++ if (!mask)
++ return true;
++
++ attr = nla_nest_start(msg, id);
++ if (!attr)
++ return false;
++
++ for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
++ if (!(mask & BIT(i)))
++ continue;
++
++ if (nla_put_u8(msg, i, signal[i]))
++ return false;
++ }
++
++ nla_nest_end(msg, attr);
++
++ return true;
++}
++
+ static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
+ int flags,
+ struct cfg80211_registered_device *rdev,
+@@ -3438,6 +3464,18 @@ static int nl80211_send_station(struct s
+ default:
+ break;
+ }
++ if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
++ if (!nl80211_put_signal(msg, sinfo->chains,
++ sinfo->chain_signal,
++ NL80211_STA_INFO_CHAIN_SIGNAL))
++ goto nla_put_failure;
++ }
++ if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
++ if (!nl80211_put_signal(msg, sinfo->chains,
++ sinfo->chain_signal_avg,
++ NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
++ goto nla_put_failure;
++ }
+ if (sinfo->filled & STATION_INFO_TX_BITRATE) {
+ if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
+ NL80211_STA_INFO_TX_BITRATE))
+--- a/drivers/net/wireless/ath/ath9k/init.c
++++ b/drivers/net/wireless/ath/ath9k/init.c
+@@ -768,7 +768,8 @@ void ath9k_set_hw_capab(struct ath_softc
+ IEEE80211_HW_SUPPORTS_PS |
+ IEEE80211_HW_PS_NULLFUNC_STACK |
+ IEEE80211_HW_SPECTRUM_MGMT |
+- IEEE80211_HW_REPORTS_TX_ACK_STATUS;
++ IEEE80211_HW_REPORTS_TX_ACK_STATUS |
++ IEEE80211_HW_SUPPORTS_RC_TABLE;
+
+ if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT)
+ hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -157,6 +157,13 @@ static void ath_send_bar(struct ath_atx_
+ seqno << IEEE80211_SEQ_SEQ_SHIFT);
+ }
-+ /* get next random rate sample */
- sample_ndx = minstrel_get_next_sample(mi);
- msr = &mi->r[sample_ndx];
-- sample = true;
-- sample_slower = mrr && (msr->perfect_tx_time >
-- mi->r[ndx].perfect_tx_time);
-+ rate_sampling = true;
-
-- if (!sample_slower) {
-+ /* Decide if direct ( 1st mrr stage) or indirect (2nd mrr stage)
-+ * rate sampling method should be used.
-+ * Respect such rates that are not sampled for 20 interations.
-+ */
-+ if (mrr_capable &&
-+ msr->perfect_tx_time > mi->r[ndx].perfect_tx_time &&
-+ msr->sample_skipped < 20)
-+ indirect_rate_sampling = true;
-+
-+ if (!indirect_rate_sampling) {
- if (msr->sample_limit != 0) {
- ndx = sample_ndx;
- mi->sample_count++;
- if (msr->sample_limit > 0)
- msr->sample_limit--;
-- } else {
-- sample = false;
-- }
-+ } else
-+ rate_sampling = false;
++static void ath_set_rates(struct ieee80211_vif *vif, struct ieee80211_sta *sta,
++ struct ath_buf *bf)
++{
++ ieee80211_get_tx_rates(vif, sta, bf->bf_mpdu, bf->rates,
++ ARRAY_SIZE(bf->rates));
++}
++
+ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
+ {
+ struct ath_txq *txq = tid->ac->txq;
+@@ -189,6 +196,7 @@ static void ath_tx_flush_tid(struct ath_
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
+ sendbar = true;
} else {
- /* Only use IEEE80211_TX_CTL_RATE_CTRL_PROBE to mark
- * packets that have the sampling rate deferred to the
-@@ -297,34 +324,39 @@ minstrel_get_rate(void *priv, struct iee
- mi->sample_deferred++;
++ ath_set_rates(tid->an->vif, tid->an->sta, bf);
+ ath_tx_send_normal(sc, txq, NULL, skb);
}
}
-- mi->prev_sample = sample;
-+ mi->prev_sample = rate_sampling;
+@@ -407,7 +415,7 @@ static void ath_tx_complete_aggr(struct
- /* If we're not using MRR and the sampling rate already
- * has a probability of >95%, we shouldn't be attempting
- * to use it, as this only wastes precious airtime */
-- if (!mrr && sample && (mi->r[ndx].probability > 17100))
-- ndx = mi->max_tp_rate;
-+ if (!mrr_capable && rate_sampling &&
-+ (mi->r[ndx].probability > MINSTREL_FRAC(95, 100)))
-+ ndx = mi->max_tp_rate[0];
-
-+ /* mrr setup for 1st stage */
- ar[0].idx = mi->r[ndx].rix;
- ar[0].count = minstrel_get_retry_count(&mi->r[ndx], info);
-
-- if (!mrr) {
-- if (!sample)
-+ /* non mrr setup for 2nd stage */
-+ if (!mrr_capable) {
-+ if (!rate_sampling)
- ar[0].count = mp->max_retry;
- ar[1].idx = mi->lowest_rix;
- ar[1].count = mp->max_retry;
- return;
- }
+ tx_info = IEEE80211_SKB_CB(skb);
-- /* MRR setup */
-- if (sample) {
-- if (sample_slower)
-+ /* mrr setup for 2nd stage */
-+ if (rate_sampling) {
-+ if (indirect_rate_sampling)
- mrr_ndx[0] = sample_ndx;
- else
-- mrr_ndx[0] = mi->max_tp_rate;
-+ mrr_ndx[0] = mi->max_tp_rate[0];
- } else {
-- mrr_ndx[0] = mi->max_tp_rate2;
-+ mrr_ndx[0] = mi->max_tp_rate[1];
- }
-+
-+ /* mrr setup for 3rd & 4th stage */
- mrr_ndx[1] = mi->max_prob_rate;
- mrr_ndx[2] = 0;
- for (i = 1; i < 4; i++) {
-@@ -351,26 +383,21 @@ static void
- init_sample_table(struct minstrel_sta_info *mi)
+- memcpy(rates, tx_info->control.rates, sizeof(rates));
++ memcpy(rates, bf->rates, sizeof(rates));
+
+ retries = ts->ts_longretry + 1;
+ for (i = 0; i < ts->ts_rateindex; i++)
+@@ -736,8 +744,6 @@ static int ath_compute_num_delims(struct
+ bool first_subfrm)
{
- unsigned int i, col, new_idx;
-- unsigned int n_srates = mi->n_rates - 1;
- u8 rnd[8];
-
- mi->sample_column = 0;
-- mi->sample_idx = 0;
-- memset(mi->sample_table, 0, SAMPLE_COLUMNS * mi->n_rates);
-+ mi->sample_row = 0;
-+ memset(mi->sample_table, 0xff, SAMPLE_COLUMNS * mi->n_rates);
-
- for (col = 0; col < SAMPLE_COLUMNS; col++) {
-- for (i = 0; i < n_srates; i++) {
-+ for (i = 0; i < mi->n_rates; i++) {
- get_random_bytes(rnd, sizeof(rnd));
-- new_idx = (i + rnd[i & 7]) % n_srates;
-+ new_idx = (i + rnd[i & 7]) % mi->n_rates;
-
-- while (SAMPLE_TBL(mi, new_idx, col) != 0)
-- new_idx = (new_idx + 1) % n_srates;
-+ while (SAMPLE_TBL(mi, new_idx, col) != 0xff)
-+ new_idx = (new_idx + 1) % mi->n_rates;
-
-- /* Don't sample the slowest rate (i.e. slowest base
-- * rate). We must presume that the slowest rate works
-- * fine, or else other management frames will also be
-- * failing and the link will break */
-- SAMPLE_TBL(mi, new_idx, col) = i + 1;
-+ SAMPLE_TBL(mi, new_idx, col) = i;
+ #define FIRST_DESC_NDELIMS 60
+- struct sk_buff *skb = bf->bf_mpdu;
+- struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
+ u32 nsymbits, nsymbols;
+ u16 minlen;
+ u8 flags, rix;
+@@ -778,8 +784,8 @@ static int ath_compute_num_delims(struct
+ if (tid->an->mpdudensity == 0)
+ return ndelim;
+
+- rix = tx_info->control.rates[0].idx;
+- flags = tx_info->control.rates[0].flags;
++ rix = bf->rates[0].idx;
++ flags = bf->rates[0].flags;
+ width = (flags & IEEE80211_TX_RC_40_MHZ_WIDTH) ? 1 : 0;
+ half_gi = (flags & IEEE80211_TX_RC_SHORT_GI) ? 1 : 0;
+
+@@ -858,6 +864,7 @@ static enum ATH_AGGR_STATUS ath_tx_form_
+ bf_first = bf;
+
+ if (!rl) {
++ ath_set_rates(tid->an->vif, tid->an->sta, bf);
+ aggr_limit = ath_lookup_rate(sc, bf, tid);
+ rl = 1;
}
+@@ -998,14 +1005,14 @@ static void ath_buf_set_rate(struct ath_
+
+ skb = bf->bf_mpdu;
+ tx_info = IEEE80211_SKB_CB(skb);
+- rates = tx_info->control.rates;
++ rates = bf->rates;
+ hdr = (struct ieee80211_hdr *)skb->data;
+
+ /* set dur_update_en for l-sig computation except for PS-Poll frames */
+ info->dur_update = !ieee80211_is_pspoll(hdr->frame_control);
+ info->rtscts_rate = fi->rtscts_rate;
+
+- for (i = 0; i < 4; i++) {
++ for (i = 0; i < ARRAY_SIZE(bf->rates); i++) {
+ bool is_40, is_sgi, is_sp;
+ int phy;
+
+@@ -1743,6 +1750,7 @@ static void ath_tx_send_ampdu(struct ath
+ return;
}
+
++ ath_set_rates(tid->an->vif, tid->an->sta, bf);
+ bf->bf_state.bf_type = BUF_AMPDU;
+ INIT_LIST_HEAD(&bf_head);
+ list_add(&bf->list, &bf_head);
+@@ -1892,49 +1900,6 @@ static struct ath_buf *ath_tx_setup_buff
+ return bf;
}
-@@ -542,9 +569,6 @@ minstrel_alloc(struct ieee80211_hw *hw,
- mp->lookaround_rate = 5;
- mp->lookaround_rate_mrr = 10;
-- /* moving average weight for EWMA */
-- mp->ewma_level = 75;
+-/* FIXME: tx power */
+-static void ath_tx_start_dma(struct ath_softc *sc, struct sk_buff *skb,
+- struct ath_tx_control *txctl)
+-{
+- struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
+- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+- struct ath_atx_tid *tid = NULL;
+- struct ath_buf *bf;
+- u8 tidno;
-
- /* maximum time that the hw is allowed to stay in one MRR segment */
- mp->segment_size = 6000;
-
---- a/net/mac80211/rc80211_minstrel.h
-+++ b/net/mac80211/rc80211_minstrel.h
-@@ -9,6 +9,28 @@
- #ifndef __RC_MINSTREL_H
- #define __RC_MINSTREL_H
+- if (txctl->an && ieee80211_is_data_qos(hdr->frame_control)) {
+- tidno = ieee80211_get_qos_ctl(hdr)[0] &
+- IEEE80211_QOS_CTL_TID_MASK;
+- tid = ATH_AN_2_TID(txctl->an, tidno);
+-
+- WARN_ON(tid->ac->txq != txctl->txq);
+- }
+-
+- if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) && tid) {
+- /*
+- * Try aggregation if it's a unicast data frame
+- * and the destination is HT capable.
+- */
+- ath_tx_send_ampdu(sc, tid, skb, txctl);
+- } else {
+- bf = ath_tx_setup_buffer(sc, txctl->txq, tid, skb);
+- if (!bf) {
+- if (txctl->paprd)
+- dev_kfree_skb_any(skb);
+- else
+- ieee80211_free_txskb(sc->hw, skb);
+- return;
+- }
+-
+- bf->bf_state.bfs_paprd = txctl->paprd;
+-
+- if (txctl->paprd)
+- bf->bf_state.bfs_paprd_timestamp = jiffies;
+-
+- ath_tx_send_normal(sc, txctl->txq, tid, skb);
+- }
+-}
+-
+ /* Upon failure caller should free skb */
+ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ath_tx_control *txctl)
+@@ -1945,8 +1910,11 @@ int ath_tx_start(struct ieee80211_hw *hw
+ struct ieee80211_vif *vif = info->control.vif;
+ struct ath_softc *sc = hw->priv;
+ struct ath_txq *txq = txctl->txq;
++ struct ath_atx_tid *tid = NULL;
++ struct ath_buf *bf;
+ int padpos, padsize;
+ int frmlen = skb->len + FCS_LEN;
++ u8 tidno;
+ int q;
+
+ /* NOTE: sta can be NULL according to net/mac80211.h */
+@@ -2002,8 +1970,41 @@ int ath_tx_start(struct ieee80211_hw *hw
+ txq->stopped = true;
+ }
-+#define EWMA_LEVEL 75 /* ewma weighting factor [%] */
-+#define SAMPLE_COLUMNS 10 /* number of columns in sample table */
+- ath_tx_start_dma(sc, skb, txctl);
++ if (txctl->an && ieee80211_is_data_qos(hdr->frame_control)) {
++ tidno = ieee80211_get_qos_ctl(hdr)[0] &
++ IEEE80211_QOS_CTL_TID_MASK;
++ tid = ATH_AN_2_TID(txctl->an, tidno);
+
++ WARN_ON(tid->ac->txq != txctl->txq);
++ }
+
-+/* scaled fraction values */
-+#define MINSTREL_SCALE 16
-+#define MINSTREL_FRAC(val, div) (((val) << MINSTREL_SCALE) / div)
-+#define MINSTREL_TRUNC(val) ((val) >> MINSTREL_SCALE)
++ if ((info->flags & IEEE80211_TX_CTL_AMPDU) && tid) {
++ /*
++ * Try aggregation if it's a unicast data frame
++ * and the destination is HT capable.
++ */
++ ath_tx_send_ampdu(sc, tid, skb, txctl);
++ goto out;
++ }
+
-+/* number of highest throughput rates to consider*/
-+#define MAX_THR_RATES 4
++ bf = ath_tx_setup_buffer(sc, txctl->txq, tid, skb);
++ if (!bf) {
++ if (txctl->paprd)
++ dev_kfree_skb_any(skb);
++ else
++ ieee80211_free_txskb(sc->hw, skb);
++ goto out;
++ }
+
-+/*
-+ * Perform EWMA (Exponentially Weighted Moving Average) calculation
-+ */
-+static inline int
-+minstrel_ewma(int old, int new, int weight)
-+{
-+ return (new * (100 - weight) + old * weight) / 100;
-+}
++ bf->bf_state.bfs_paprd = txctl->paprd;
+
++ if (txctl->paprd)
++ bf->bf_state.bfs_paprd_timestamp = jiffies;
+
- struct minstrel_rate {
- int bitrate;
- int rix;
-@@ -26,6 +48,7 @@ struct minstrel_rate {
- u32 attempts;
- u32 last_attempts;
- u32 last_success;
-+ u8 sample_skipped;
-
- /* parts per thousand */
- u32 cur_prob;
-@@ -45,14 +68,13 @@ struct minstrel_sta_info {
-
- unsigned int lowest_rix;
-
-- unsigned int max_tp_rate;
-- unsigned int max_tp_rate2;
-- unsigned int max_prob_rate;
-+ u8 max_tp_rate[MAX_THR_RATES];
-+ u8 max_prob_rate;
- unsigned int packet_count;
- unsigned int sample_count;
- int sample_deferred;
-
-- unsigned int sample_idx;
-+ unsigned int sample_row;
- unsigned int sample_column;
-
- int n_rates;
-@@ -73,7 +95,6 @@ struct minstrel_priv {
- unsigned int cw_min;
- unsigned int cw_max;
- unsigned int max_retry;
-- unsigned int ewma_level;
- unsigned int segment_size;
- unsigned int update_interval;
- unsigned int lookaround_rate;
---- a/net/mac80211/rc80211_minstrel_debugfs.c
-+++ b/net/mac80211/rc80211_minstrel_debugfs.c
-@@ -73,15 +73,17 @@ minstrel_stats_open(struct inode *inode,
- for (i = 0; i < mi->n_rates; i++) {
- struct minstrel_rate *mr = &mi->r[i];
-
-- *(p++) = (i == mi->max_tp_rate) ? 'T' : ' ';
-- *(p++) = (i == mi->max_tp_rate2) ? 't' : ' ';
-+ *(p++) = (i == mi->max_tp_rate[0]) ? 'A' : ' ';
-+ *(p++) = (i == mi->max_tp_rate[1]) ? 'B' : ' ';
-+ *(p++) = (i == mi->max_tp_rate[2]) ? 'C' : ' ';
-+ *(p++) = (i == mi->max_tp_rate[3]) ? 'D' : ' ';
- *(p++) = (i == mi->max_prob_rate) ? 'P' : ' ';
- p += sprintf(p, "%3u%s", mr->bitrate / 2,
- (mr->bitrate & 1 ? ".5" : " "));
-
-- tp = mr->cur_tp / ((18000 << 10) / 96);
-- prob = mr->cur_prob / 18;
-- eprob = mr->probability / 18;
-+ tp = MINSTREL_TRUNC(mr->cur_tp / 10);
-+ prob = MINSTREL_TRUNC(mr->cur_prob * 1000);
-+ eprob = MINSTREL_TRUNC(mr->probability * 1000);
-
- p += sprintf(p, " %6u.%1u %6u.%1u %6u.%1u "
- "%3u(%3u) %8llu %8llu\n",
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -657,11 +657,10 @@ enum sc_op_flags {
- struct ath_rate_table;
++ ath_set_rates(vif, sta, bf);
++ ath_tx_send_normal(sc, txctl->txq, tid, skb);
- struct ath9k_vif_iter_data {
-- const u8 *hw_macaddr; /* phy's hardware address, set
-- * before starting iteration for
-- * valid bssid mask.
-- */
-+ u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */
- u8 mask[ETH_ALEN]; /* bssid mask */
-+ bool has_hw_macaddr;
-+
- int naps; /* number of AP vifs */
- int nmeshes; /* number of mesh vifs */
- int nstations; /* number of station vifs */
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -835,10 +835,14 @@ static void ath9k_vif_iter(void *data, u
- struct ath9k_vif_iter_data *iter_data = data;
- int i;
++out:
+ ath_txq_unlock(sc, txq);
-- if (iter_data->hw_macaddr)
-+ if (iter_data->has_hw_macaddr) {
- for (i = 0; i < ETH_ALEN; i++)
- iter_data->mask[i] &=
- ~(iter_data->hw_macaddr[i] ^ mac[i]);
-+ } else {
-+ memcpy(iter_data->hw_macaddr, mac, ETH_ALEN);
-+ iter_data->has_hw_macaddr = true;
-+ }
+ return 0;
+--- a/drivers/net/wireless/ath/ath9k/recv.c
++++ b/drivers/net/wireless/ath/ath9k/recv.c
+@@ -124,7 +124,7 @@ static bool ath_rx_edma_buf_link(struct
- switch (vif->type) {
- case NL80211_IFTYPE_AP:
-@@ -887,7 +891,6 @@ void ath9k_calculate_iter_data(struct ie
- * together with the BSSID mask when matching addresses.
- */
- memset(iter_data, 0, sizeof(*iter_data));
-- iter_data->hw_macaddr = common->macaddr;
- memset(&iter_data->mask, 0xff, ETH_ALEN);
+ SKB_CB_ATHBUF(skb) = bf;
+ ath9k_hw_addrxbuf_edma(ah, bf->bf_buf_addr, qtype);
+- skb_queue_tail(&rx_edma->rx_fifo, skb);
++ __skb_queue_tail(&rx_edma->rx_fifo, skb);
- if (vif)
-@@ -897,6 +900,8 @@ void ath9k_calculate_iter_data(struct ie
- ieee80211_iterate_active_interfaces_atomic(
- sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
- ath9k_vif_iter, iter_data);
-+
-+ memcpy(common->macaddr, iter_data->hw_macaddr, ETH_ALEN);
+ return true;
}
+@@ -155,7 +155,7 @@ static void ath_rx_remove_buffer(struct
- /* Called with sc->mutex held. */
---- a/drivers/net/wireless/ath/ath9k/reg.h
-+++ b/drivers/net/wireless/ath/ath9k/reg.h
-@@ -1493,9 +1493,6 @@ enum {
- #define AR9271_RADIO_RF_RST 0x20
- #define AR9271_GATE_MAC_CTL 0x4000
+ rx_edma = &sc->rx.rx_edma[qtype];
--#define AR_STA_ID0 0x8000
--#define AR_STA_ID1 0x8004
--#define AR_STA_ID1_SADH_MASK 0x0000FFFF
- #define AR_STA_ID1_STA_AP 0x00010000
- #define AR_STA_ID1_ADHOC 0x00020000
- #define AR_STA_ID1_PWR_SAV 0x00040000
---- a/drivers/net/wireless/ath/hw.c
-+++ b/drivers/net/wireless/ath/hw.c
-@@ -118,6 +118,12 @@
- void ath_hw_setbssidmask(struct ath_common *common)
- {
- void *ah = common->ah;
-+ u32 id1;
-+
-+ REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
-+ id1 = REG_READ(ah, AR_STA_ID1) & ~AR_STA_ID1_SADH_MASK;
-+ id1 |= get_unaligned_le16(common->macaddr + 4);
-+ REG_WRITE(ah, AR_STA_ID1, id1);
+- while ((skb = skb_dequeue(&rx_edma->rx_fifo)) != NULL) {
++ while ((skb = __skb_dequeue(&rx_edma->rx_fifo)) != NULL) {
+ bf = SKB_CB_ATHBUF(skb);
+ BUG_ON(!bf);
+ list_add_tail(&bf->list, &sc->rx.rxbuf);
+@@ -1287,13 +1287,13 @@ int ath_rx_tasklet(struct ath_softc *sc,
+ goto requeue_drop_frag;
+ }
- REG_WRITE(ah, AR_BSSMSKL, get_unaligned_le32(common->bssidmask));
- REG_WRITE(ah, AR_BSSMSKU, get_unaligned_le16(common->bssidmask + 4));
---- a/drivers/net/wireless/ath/reg.h
-+++ b/drivers/net/wireless/ath/reg.h
-@@ -23,6 +23,10 @@
- #define AR_MIBC_CMC 0x00000004
- #define AR_MIBC_MCS 0x00000008
+- bf->bf_mpdu = requeue_skb;
+- bf->bf_buf_addr = new_buf_addr;
+-
+ /* Unmap the frame */
+ dma_unmap_single(sc->dev, bf->bf_buf_addr,
+ common->rx_bufsize, dma_type);
-+#define AR_STA_ID0 0x8000
-+#define AR_STA_ID1 0x8004
-+#define AR_STA_ID1_SADH_MASK 0x0000ffff
++ bf->bf_mpdu = requeue_skb;
++ bf->bf_buf_addr = new_buf_addr;
+
- /*
- * BSSID mask registers. See ath_hw_set_bssid_mask()
- * for detailed documentation about these registers.
+ skb_put(skb, rs.rs_datalen + ah->caps.rx_status_len);
+ if (ah->caps.rx_status_len)
+ skb_pull(skb, ah->caps.rx_status_len);
projects / openwrt / staging / robimarko.git / commitdiff