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openwrtv4/package/mac80211/patches/300-pending_work.patch
Felix Fietkau 2ff74a75b6 ath9k: fix some more aggregation related issues 
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 36656
2013-05-18 19:36:22 +00:00

4206 lines
127 KiB
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--- 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;
};
@@ -250,9 +251,9 @@ struct ath_atx_tid {
int tidno;
int baw_head; /* first un-acked tx buffer */
int baw_tail; /* next unused tx buffer slot */
- int sched;
- int paused;
- u8 state;
+ bool sched;
+ bool paused;
+ bool active;
};
struct ath_node {
@@ -273,10 +274,6 @@ struct ath_node {
#endif
};
-#define AGGR_CLEANUP BIT(1)
-#define AGGR_ADDBA_COMPLETE BIT(2)
-#define AGGR_ADDBA_PROGRESS BIT(3)
-
struct ath_tx_control {
struct ath_txq *txq;
struct ath_node *an;
@@ -658,11 +655,10 @@ 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
@@ -1366,7 +1366,10 @@ static bool ath9k_hw_set_reset(struct at
REGWRITE_BUFFER_FLUSH(ah);
- udelay(50);
+ if (AR_SREV_9100(ah))
+ mdelay(10);
+ else
+ udelay(50);
REG_WRITE(ah, AR_RTC_RC, 0);
if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
@@ -1377,8 +1380,12 @@ static bool ath9k_hw_set_reset(struct at
if (!AR_SREV_9100(ah))
REG_WRITE(ah, AR_RC, 0);
- if (AR_SREV_9100(ah))
+ if (AR_SREV_9100(ah) && type != ATH9K_RESET_WARM) {
+ if (ah->external_reset)
+ ah->external_reset();
+
udelay(50);
+ }
return true;
}
@@ -1464,7 +1471,8 @@ 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) ||
+ } else if (ah->chip_fullsleep ||
+ REG_READ(ah, AR_Q_TXE) ||
(REG_READ(ah, AR_CR) & AR_CR_RXE))
reset_type = ATH9K_RESET_COLD;
@@ -1698,12 +1706,11 @@ 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. */
@@ -1327,6 +1332,7 @@ static int ath9k_sta_add(struct ieee8021
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_node *an = (struct ath_node *) sta->drv_priv;
struct ieee80211_key_conf ps_key = { };
+ int key;
ath_node_attach(sc, sta, vif);
@@ -1334,7 +1340,9 @@ static int ath9k_sta_add(struct ieee8021
vif->type != NL80211_IFTYPE_AP_VLAN)
return 0;
- an->ps_key = ath_key_config(common, vif, sta, &ps_key);
+ key = ath_key_config(common, vif, sta, &ps_key);
+ if (key > 0)
+ an->ps_key = key;
return 0;
}
@@ -1351,6 +1359,7 @@ static void ath9k_del_ps_key(struct ath_
return;
ath_key_delete(common, &ps_key);
+ an->ps_key = 0;
}
static int ath9k_sta_remove(struct ieee80211_hw *hw,
@@ -1678,6 +1687,7 @@ static int ath9k_ampdu_action(struct iee
u16 tid, u16 *ssn, u8 buf_size)
{
struct ath_softc *sc = hw->priv;
+ bool flush = false;
int ret = 0;
local_bh_disable();
@@ -1694,12 +1704,14 @@ static int ath9k_ampdu_action(struct iee
ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
ath9k_ps_restore(sc);
break;
- case IEEE80211_AMPDU_TX_STOP_CONT:
case IEEE80211_AMPDU_TX_STOP_FLUSH:
case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
+ flush = true;
+ case IEEE80211_AMPDU_TX_STOP_CONT:
ath9k_ps_wakeup(sc);
ath_tx_aggr_stop(sc, sta, tid);
- ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ if (!flush)
+ ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
ath9k_ps_restore(sc);
break;
case IEEE80211_AMPDU_TX_OPERATIONAL:
--- 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;
+ }
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
@@ -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 {
};
/**
+ * 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
@@ -204,6 +204,8 @@ static void ieee80211_send_addba_resp(st
memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
memcpy(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN);
+ else if (sdata->vif.type == NL80211_IFTYPE_WDS)
+ memcpy(mgmt->bssid, da, ETH_ALEN);
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
IEEE80211_STYPE_ACTION);
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -81,7 +81,8 @@ static void ieee80211_send_addba_request
memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
if (sdata->vif.type == NL80211_IFTYPE_AP ||
sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
- sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
+ sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
+ sdata->vif.type == NL80211_IFTYPE_WDS)
memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
else if (sdata->vif.type == NL80211_IFTYPE_STATION)
memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
@@ -527,6 +528,7 @@ int ieee80211_start_tx_ba_session(struct
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_WDS &&
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
@@ -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),
- "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
+ "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
TEST(AUTH), TEST(ASSOC), TEST(PS_STA),
TEST(PS_DRIVER), TEST(AUTHORIZED),
TEST(SHORT_PREAMBLE),
- TEST(WME), TEST(WDS), TEST(CLEAR_PS_FILT),
+ TEST(WME), TEST(CLEAR_PS_FILT),
TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL),
TEST(UAPSD), TEST(SP), TEST(TDLS_PEER),
TEST(TDLS_PEER_AUTH), TEST(4ADDR_EVENT),
--- 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;
unsigned int flags;
};
@@ -740,6 +741,8 @@ struct ieee80211_sub_if_data {
/* 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);
}
-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);
}
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;
- struct sta_info *sta;
u32 changed = 0;
int res;
u32 hw_reconf_flags = 0;
@@ -609,30 +608,8 @@ int ieee80211_do_open(struct wireless_de
set_bit(SDATA_STATE_RUNNING, &sdata->state);
- if (sdata->vif.type == NL80211_IFTYPE_WDS) {
- /* Create STA entry for the WDS peer */
- sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
- GFP_KERNEL);
- if (!sta) {
- res = -ENOMEM;
- goto err_del_interface;
- }
-
- sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
- sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
- sta_info_pre_move_state(sta, IEEE80211_STA_AUTHORIZED);
-
- res = sta_info_insert(sta);
- if (res) {
- /* STA has been freed */
- goto err_del_interface;
- }
-
- rate_control_rate_init(sta);
- netif_carrier_on(dev);
- } else if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE) {
+ if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE)
rcu_assign_pointer(local->p2p_sdata, sdata);
- }
/*
* set_multicast_list will be invoked by the networking core
@@ -1092,6 +1069,74 @@ static void ieee80211_if_setup(struct ne
dev->destructor = free_netdev;
}
+static void ieee80211_wds_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_rx_status *rx_status;
+ struct ieee802_11_elems elems;
+ struct ieee80211_mgmt *mgmt;
+ struct sta_info *sta;
+ size_t baselen;
+ u32 rates = 0;
+ u16 stype;
+ bool new = false;
+ 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;
+
+ if (stype != IEEE80211_STYPE_BEACON)
+ return;
+
+ baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
+ if (baselen > skb->len)
+ return;
+
+ ieee802_11_parse_elems(mgmt->u.probe_resp.variable,
+ skb->len - baselen, false, &elems);
+
+ rates = ieee80211_sta_get_rates(local, &elems, band, NULL);
+
+ rcu_read_lock();
+
+ sta = sta_info_get(sdata, sdata->u.wds.remote_addr);
+
+ if (!sta) {
+ rcu_read_unlock();
+ sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
+ GFP_KERNEL);
+ if (!sta)
+ return;
+
+ new = true;
+ }
+
+ sta->last_rx = jiffies;
+ sta->sta.supp_rates[band] = rates;
+
+ if (elems.ht_cap_elem)
+ ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
+ elems.ht_cap_elem, sta);
+
+ if (elems.wmm_param)
+ set_sta_flag(sta, WLAN_STA_WME);
+
+ if (new) {
+ sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
+ sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
+ sta_info_pre_move_state(sta, IEEE80211_STA_AUTHORIZED);
+ rate_control_rate_init(sta);
+ sta_info_insert_rcu(sta);
+ }
+
+ rcu_read_unlock();
+}
+
static void ieee80211_iface_work(struct work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
@@ -1196,6 +1241,9 @@ static void ieee80211_iface_work(struct
break;
ieee80211_mesh_rx_queued_mgmt(sdata, skb);
break;
+ case NL80211_IFTYPE_WDS:
+ ieee80211_wds_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 +1013,208 @@ 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,
+ bool beacon)
{
- 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;
+ const struct ieee80211_ht_operation *ht_oper;
+ int secondary_channel_offset = -1;
ASSERT_MGD_MTX(ifmgd);
- if (!ifmgd->associated)
+ if (!cbss)
+ return;
+
+ if (local->scanning)
return;
- if (sdata->local->scanning)
+ /* disregard subsequent announcements if we are already processing */
+ if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
return;
- /* Disregard subsequent beacons if we are already running a timer
- processing a CSA */
+ sec_chan_offs = elems->sec_chan_offs;
+ wide_bw_chansw_ie = elems->wide_bw_chansw_ie;
+ ht_oper = elems->ht_operation;
+
+ if (ifmgd->flags & (IEEE80211_STA_DISABLE_HT |
+ IEEE80211_STA_DISABLE_40MHZ)) {
+ sec_chan_offs = NULL;
+ wide_bw_chansw_ie = NULL;
+ /* only used for bandwidth here */
+ ht_oper = NULL;
+ }
- if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
+ 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_ch = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
- if (!new_ch || new_ch->flags & IEEE80211_CHAN_DISABLED) {
+ 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 (!beacon && sec_chan_offs) {
+ secondary_channel_offset = sec_chan_offs->sec_chan_offs;
+ } else if (beacon && ht_oper) {
+ secondary_channel_offset =
+ ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
+ } else if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) {
+ /*
+ * If it's not a beacon, HT is enabled and the IE not present,
+ * it's 20 MHz, 802.11-2012 8.5.2.6:
+ * This element [the Secondary Channel Offset Element] is
+ * present when switching to a 40 MHz channel. It may be
+ * present when switching to a 20 MHz channel (in which
+ * case the secondary channel offset is set to SCN).
+ */
+ 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 +1222,39 @@ 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 +2230,6 @@ 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 +2279,7 @@ 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 +2544,7 @@ 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 +2713,7 @@ 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 +2768,8 @@ 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 +2800,8 @@ 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 +2810,9 @@ 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, true);
+
}
@@ -2726,7 +2837,7 @@ 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 +2920,7 @@ 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 +3030,7 @@ 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 +3177,8 @@ 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 +3208,48 @@ 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, false);
+ } 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, false);
}
+ break;
}
mutex_unlock(&ifmgd->mtx);
@@ -4197,7 +4344,7 @@ int ieee80211_mgd_deauth(struct ieee8021
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
bool tx = !req->local_state_change;
- bool sent_frame = false;
+ bool report_frame = false;
mutex_lock(&ifmgd->mtx);
@@ -4214,7 +4361,7 @@ int ieee80211_mgd_deauth(struct ieee8021
ieee80211_destroy_auth_data(sdata, false);
mutex_unlock(&ifmgd->mtx);
- sent_frame = tx;
+ report_frame = true;
goto out;
}
@@ -4222,12 +4369,12 @@ int ieee80211_mgd_deauth(struct ieee8021
ether_addr_equal(ifmgd->associated->bssid, req->bssid)) {
ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
req->reason_code, tx, frame_buf);
- sent_frame = tx;
+ report_frame = true;
}
mutex_unlock(&ifmgd->mtx);
out:
- if (sent_frame)
+ if (report_frame)
__cfg80211_send_deauth(sdata->dev, frame_buf,
IEEE80211_DEAUTH_FRAME_LEN);
--- 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, chan_width, mask,
+ 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
@@ -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_WDS &&
sdata->vif.type != NL80211_IFTYPE_ADHOC)
break;
@@ -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 &&
- sdata->vif.type != NL80211_IFTYPE_STATION)
+ sdata->vif.type != NL80211_IFTYPE_STATION &&
+ sdata->vif.type != NL80211_IFTYPE_WDS)
return RX_DROP_MONITOR;
switch (stype) {
case cpu_to_le16(IEEE80211_STYPE_AUTH):
case cpu_to_le16(IEEE80211_STYPE_BEACON):
case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP):
- /* process for all: mesh, mlme, ibss */
+ /* process for all: mesh, mlme, ibss, wds */
break;
case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP):
case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP):
@@ -3023,6 +3052,9 @@ static int prepare_for_handlers(struct i
* and location updates. Note that mac80211
* itself never looks at these frames.
*/
+ if (!multicast &&
+ !ether_addr_equal(sdata->vif.addr, hdr->addr1))
+ return 0;
if (ieee80211_is_public_action(hdr, skb->len))
return 1;
if (!ieee80211_is_beacon(hdr->frame_control))
@@ -3031,10 +3063,16 @@ static int prepare_for_handlers(struct i
}
break;
case NL80211_IFTYPE_WDS:
- if (bssid || !ieee80211_is_data(hdr->frame_control))
- return 0;
if (!ether_addr_equal(sdata->u.wds.remote_addr, hdr->addr2))
return 0;
+
+ if (ieee80211_is_data(hdr->frame_control) ||
+ ieee80211_is_action(hdr->frame_control)) {
+ if (compare_ether_addr(sdata->vif.addr, hdr->addr1))
+ return 0;
+ } else if (!ieee80211_is_beacon(hdr->frame_control))
+ return 0;
+
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_SHORT_PREAMBLE: Station is capable of receiving short-preamble
* frames.
* @WLAN_STA_WME: Station is a QoS-STA.
- * @WLAN_STA_WDS: Station is one of our WDS peers.
* @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the
* IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next
* frame to this station is transmitted.
@@ -66,7 +65,6 @@ enum ieee80211_sta_info_flags {
WLAN_STA_AUTHORIZED,
WLAN_STA_SHORT_PREAMBLE,
WLAN_STA_WME,
- WLAN_STA_WDS,
WLAN_STA_CLEAR_PS_FILT,
WLAN_STA_MFP,
WLAN_STA_BLOCK_BA,
@@ -344,6 +342,11 @@ struct sta_info {
int last_signal;
struct ewma avg_signal;
int last_ack_signal;
+
+ u8 chains;
+ s8 chain_signal_last[IEEE80211_MAX_CHAINS];
+ struct ewma chain_signal_avg[IEEE80211_MAX_CHAINS];
+
/* 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
)
);
--- 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);
/* assume HW handles this */
- if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
+ if (tx->rate.flags & IEEE80211_TX_RC_MCS)
return 0;
/* uh huh? */
- if (WARN_ON_ONCE(info->control.rates[0].idx < 0))
+ if (WARN_ON_ONCE(tx->rate.idx < 0))
return 0;
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));
+
+ if (tx->sdata->rc_has_mcs_mask[info->band])
+ txrc.rate_idx_mcs_mask =
+ tx->sdata->rc_rateidx_mcs_mask[info->band];
+
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;
}
+ 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;
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);
- 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);
+
+ 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
+ };
+
+ 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;
+ 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;
- }
-
- info->control.rts_cts_rate_idx = baserate;
- }
-
- 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;
- }
-
- /*
- * 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;
- }
-
- 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;
- }
-
return TX_CONTINUE;
}
@@ -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)
{
@@ -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;
}
--- 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);
+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;
+ }
+
+ 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;
}
+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
@@ -125,24 +125,6 @@ static void ath_tx_queue_tid(struct ath_
list_add_tail(&ac->list, &txq->axq_acq);
}
-static void ath_tx_resume_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
-{
- struct ath_txq *txq = tid->ac->txq;
-
- WARN_ON(!tid->paused);
-
- ath_txq_lock(sc, txq);
- tid->paused = false;
-
- if (skb_queue_empty(&tid->buf_q))
- goto unlock;
-
- ath_tx_queue_tid(txq, tid);
- ath_txq_schedule(sc, txq);
-unlock:
- ath_txq_unlock_complete(sc, txq);
-}
-
static struct ath_frame_info *get_frame_info(struct sk_buff *skb)
{
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
@@ -157,6 +139,13 @@ static void ath_send_bar(struct ath_atx_
seqno << IEEE80211_SEQ_SEQ_SHIFT);
}
+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;
@@ -189,15 +178,11 @@ static void ath_tx_flush_tid(struct ath_
ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
sendbar = true;
} else {
+ ath_set_rates(tid->an->vif, tid->an->sta, bf);
ath_tx_send_normal(sc, txq, NULL, skb);
}
}
- if (tid->baw_head == tid->baw_tail) {
- tid->state &= ~AGGR_ADDBA_COMPLETE;
- tid->state &= ~AGGR_CLEANUP;
- }
-
if (sendbar) {
ath_txq_unlock(sc, txq);
ath_send_bar(tid, tid->seq_start);
@@ -269,9 +254,7 @@ static void ath_tid_drain(struct ath_sof
list_add_tail(&bf->list, &bf_head);
- if (fi->retries)
- ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
-
+ ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
}
@@ -407,7 +390,7 @@ static void ath_tx_complete_aggr(struct
tx_info = IEEE80211_SKB_CB(skb);
- 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++)
@@ -483,19 +466,19 @@ static void ath_tx_complete_aggr(struct
tx_info = IEEE80211_SKB_CB(skb);
fi = get_frame_info(skb);
- if (ATH_BA_ISSET(ba, ATH_BA_INDEX(seq_st, seqno))) {
+ if (!BAW_WITHIN(tid->seq_start, tid->baw_size, seqno)) {
+ /*
+ * Outside of the current BlockAck window,
+ * maybe part of a previous session
+ */
+ txfail = 1;
+ } else if (ATH_BA_ISSET(ba, ATH_BA_INDEX(seq_st, seqno))) {
/* transmit completion, subframe is
* acked by block ack */
acked_cnt++;
} else if (!isaggr && txok) {
/* transmit completion */
acked_cnt++;
- } else if (tid->state & AGGR_CLEANUP) {
- /*
- * cleanup in progress, just fail
- * the un-acked sub-frames
- */
- txfail = 1;
} else if (flush) {
txpending = 1;
} else if (fi->retries < ATH_MAX_SW_RETRIES) {
@@ -519,7 +502,7 @@ static void ath_tx_complete_aggr(struct
if (bf_next != NULL || !bf_last->bf_stale)
list_move_tail(&bf->list, &bf_head);
- if (!txpending || (tid->state & AGGR_CLEANUP)) {
+ if (!txpending) {
/*
* complete the acked-ones/xretried ones; update
* block-ack window
@@ -593,9 +576,6 @@ static void ath_tx_complete_aggr(struct
ath_txq_lock(sc, txq);
}
- if (tid->state & AGGR_CLEANUP)
- ath_tx_flush_tid(sc, tid);
-
rcu_read_unlock();
if (needreset)
@@ -612,6 +592,7 @@ static void ath_tx_process_buffer(struct
struct ath_tx_status *ts, struct ath_buf *bf,
struct list_head *bf_head)
{
+ struct ieee80211_tx_info *info;
bool txok, flush;
txok = !(ts->ts_status & ATH9K_TXERR_MASK);
@@ -623,8 +604,12 @@ static void ath_tx_process_buffer(struct
txq->axq_ampdu_depth--;
if (!bf_isampdu(bf)) {
- if (!flush)
+ if (!flush) {
+ info = IEEE80211_SKB_CB(bf->bf_mpdu);
+ memcpy(info->control.rates, bf->rates,
+ sizeof(info->control.rates));
ath_tx_rc_status(sc, bf, ts, 1, txok ? 0 : 1, txok);
+ }
ath_tx_complete_buf(sc, bf, txq, bf_head, ts, txok);
} else
ath_tx_complete_aggr(sc, txq, bf, bf_head, ts, txok);
@@ -668,7 +653,7 @@ static u32 ath_lookup_rate(struct ath_so
skb = bf->bf_mpdu;
tx_info = IEEE80211_SKB_CB(skb);
- rates = tx_info->control.rates;
+ rates = bf->rates;
/*
* Find the lowest frame length among the rate series that will have a
@@ -736,8 +721,6 @@ static int ath_compute_num_delims(struct
bool first_subfrm)
{
#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 +761,8 @@ 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 +841,7 @@ 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 +982,14 @@ 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;
@@ -1224,9 +1208,6 @@ int ath_tx_aggr_start(struct ath_softc *
an = (struct ath_node *)sta->drv_priv;
txtid = ATH_AN_2_TID(an, tid);
- if (txtid->state & (AGGR_CLEANUP | AGGR_ADDBA_COMPLETE))
- return -EAGAIN;
-
/* update ampdu factor/density, they may have changed. This may happen
* in HT IBSS when a beacon with HT-info is received after the station
* has already been added.
@@ -1238,7 +1219,7 @@ int ath_tx_aggr_start(struct ath_softc *
an->mpdudensity = density;
}
- txtid->state |= AGGR_ADDBA_PROGRESS;
+ txtid->active = true;
txtid->paused = true;
*ssn = txtid->seq_start = txtid->seq_next;
txtid->bar_index = -1;
@@ -1255,28 +1236,9 @@ void ath_tx_aggr_stop(struct ath_softc *
struct ath_atx_tid *txtid = ATH_AN_2_TID(an, tid);
struct ath_txq *txq = txtid->ac->txq;
- if (txtid->state & AGGR_CLEANUP)
- return;
-
- if (!(txtid->state & AGGR_ADDBA_COMPLETE)) {
- txtid->state &= ~AGGR_ADDBA_PROGRESS;
- return;
- }
-
ath_txq_lock(sc, txq);
+ txtid->active = false;
txtid->paused = true;
-
- /*
- * If frames are still being transmitted for this TID, they will be
- * cleaned up during tx completion. To prevent race conditions, this
- * TID can only be reused after all in-progress subframes have been
- * completed.
- */
- if (txtid->baw_head != txtid->baw_tail)
- txtid->state |= AGGR_CLEANUP;
- else
- txtid->state &= ~AGGR_ADDBA_COMPLETE;
-
ath_tx_flush_tid(sc, txtid);
ath_txq_unlock_complete(sc, txq);
}
@@ -1342,18 +1304,28 @@ void ath_tx_aggr_wakeup(struct ath_softc
}
}
-void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid)
+void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta,
+ u16 tidno)
{
- struct ath_atx_tid *txtid;
+ struct ath_atx_tid *tid;
struct ath_node *an;
+ struct ath_txq *txq;
an = (struct ath_node *)sta->drv_priv;
+ tid = ATH_AN_2_TID(an, tidno);
+ txq = tid->ac->txq;
- txtid = ATH_AN_2_TID(an, tid);
- txtid->baw_size = IEEE80211_MIN_AMPDU_BUF << sta->ht_cap.ampdu_factor;
- txtid->state |= AGGR_ADDBA_COMPLETE;
- txtid->state &= ~AGGR_ADDBA_PROGRESS;
- ath_tx_resume_tid(sc, txtid);
+ ath_txq_lock(sc, txq);
+
+ tid->baw_size = IEEE80211_MIN_AMPDU_BUF << sta->ht_cap.ampdu_factor;
+ tid->paused = false;
+
+ if (!skb_queue_empty(&tid->buf_q)) {
+ ath_tx_queue_tid(txq, tid);
+ ath_txq_schedule(sc, txq);
+ }
+
+ ath_txq_unlock_complete(sc, txq);
}
/********************/
@@ -1743,6 +1715,7 @@ 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 +1865,6 @@ static struct ath_buf *ath_tx_setup_buff
return bf;
}
-/* 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;
-
- 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 +1875,11 @@ 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 +1935,41 @@ int ath_tx_start(struct ieee80211_hw *hw
txq->stopped = true;
}
- 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);
+ }
+
+ 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;
+ }
+
+ 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;
+ }
+
+ bf->bf_state.bfs_paprd = txctl->paprd;
+
+ if (txctl->paprd)
+ bf->bf_state.bfs_paprd_timestamp = jiffies;
+
+ ath_set_rates(vif, sta, bf);
+ ath_tx_send_normal(sc, txctl->txq, tid, skb);
+
+out:
ath_txq_unlock(sc, txq);
return 0;
@@ -2408,12 +2374,10 @@ void ath_tx_node_init(struct ath_softc *
tid->baw_head = tid->baw_tail = 0;
tid->sched = false;
tid->paused = false;
- tid->state &= ~AGGR_CLEANUP;
+ tid->active = false;
__skb_queue_head_init(&tid->buf_q);
acno = TID_TO_WME_AC(tidno);
tid->ac = &an->ac[acno];
- tid->state &= ~AGGR_ADDBA_COMPLETE;
- tid->state &= ~AGGR_ADDBA_PROGRESS;
}
for (acno = 0, ac = &an->ac[acno];
@@ -2450,9 +2414,9 @@ void ath_tx_node_cleanup(struct ath_soft
}
ath_tid_drain(sc, txq, tid);
- tid->state &= ~AGGR_ADDBA_COMPLETE;
- tid->state &= ~AGGR_CLEANUP;
+ tid->active = false;
ath_txq_unlock(sc, txq);
}
}
+
--- 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
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);
return true;
}
@@ -155,7 +155,7 @@ static void ath_rx_remove_buffer(struct
rx_edma = &sc->rx.rx_edma[qtype];
- 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;
}
- 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);
+ bf->bf_mpdu = requeue_skb;
+ bf->bf_buf_addr = new_buf_addr;
+
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);
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -885,7 +885,6 @@ void cfg80211_leave(struct cfg80211_regi
#endif
__cfg80211_disconnect(rdev, dev,
WLAN_REASON_DEAUTH_LEAVING, true);
- cfg80211_mlme_down(rdev, dev);
wdev_unlock(wdev);
break;
case NL80211_IFTYPE_MESH_POINT:
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -961,7 +961,7 @@ int __cfg80211_disconnect(struct cfg8021
/* was it connected by userspace SME? */
if (!wdev->conn) {
cfg80211_mlme_down(rdev, dev);
- return 0;
+ goto disconnect;
}
if (wdev->sme_state == CFG80211_SME_CONNECTING &&
@@ -987,6 +987,7 @@ int __cfg80211_disconnect(struct cfg8021
return err;
}
+ disconnect:
if (wdev->sme_state == CFG80211_SME_CONNECTED)
__cfg80211_disconnected(dev, NULL, 0, 0, false);
else if (wdev->sme_state == CFG80211_SME_CONNECTING)
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -1227,10 +1227,7 @@ static bool ath_tx_aggr_check(struct ath
return false;
txtid = ATH_AN_2_TID(an, tidno);
-
- if (!(txtid->state & (AGGR_ADDBA_COMPLETE | AGGR_ADDBA_PROGRESS)))
- return true;
- return false;
+ return !txtid->active;
}
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