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-rw-r--r--net/mac80211/aes_ccm.c3
-rw-r--r--net/mac80211/aes_cmac.c3
-rw-r--r--net/mac80211/agg-rx.c8
-rw-r--r--net/mac80211/cfg.c120
-rw-r--r--net/mac80211/debugfs.c60
-rw-r--r--net/mac80211/debugfs.h2
-rw-r--r--net/mac80211/debugfs_key.c19
-rw-r--r--net/mac80211/debugfs_sta.c55
-rw-r--r--net/mac80211/driver-ops.h37
-rw-r--r--net/mac80211/driver-trace.h71
-rw-r--r--net/mac80211/ibss.c2
-rw-r--r--net/mac80211/ieee80211_i.h15
-rw-r--r--net/mac80211/key.c9
-rw-r--r--net/mac80211/mlme.c143
-rw-r--r--net/mac80211/rate.c18
-rw-r--r--net/mac80211/rc80211_minstrel_ht.c19
-rw-r--r--net/mac80211/rx.c24
-rw-r--r--net/mac80211/sta_info.c17
-rw-r--r--net/mac80211/sta_info.h32
-rw-r--r--net/mac80211/status.c41
-rw-r--r--net/mac80211/tx.c16
-rw-r--r--net/mac80211/util.c40
-rw-r--r--net/mac80211/wme.c11
-rw-r--r--net/mac80211/work.c22
24 files changed, 623 insertions, 164 deletions
diff --git a/net/mac80211/aes_ccm.c b/net/mac80211/aes_ccm.c
index d2b03e0851ef..4bd6ef0be380 100644
--- a/net/mac80211/aes_ccm.c
+++ b/net/mac80211/aes_ccm.c
@@ -147,6 +147,5 @@ struct crypto_cipher *ieee80211_aes_key_setup_encrypt(const u8 key[])
void ieee80211_aes_key_free(struct crypto_cipher *tfm)
{
- if (tfm)
- crypto_free_cipher(tfm);
+ crypto_free_cipher(tfm);
}
diff --git a/net/mac80211/aes_cmac.c b/net/mac80211/aes_cmac.c
index b4d66cca76d6..d502b2684a66 100644
--- a/net/mac80211/aes_cmac.c
+++ b/net/mac80211/aes_cmac.c
@@ -128,6 +128,5 @@ struct crypto_cipher * ieee80211_aes_cmac_key_setup(const u8 key[])
void ieee80211_aes_cmac_key_free(struct crypto_cipher *tfm)
{
- if (tfm)
- crypto_free_cipher(tfm);
+ crypto_free_cipher(tfm);
}
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 720b7a84af59..f138b195d657 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -129,9 +129,7 @@ static void sta_rx_agg_reorder_timer_expired(unsigned long data)
timer_to_tid[0]);
rcu_read_lock();
- spin_lock(&sta->lock);
ieee80211_release_reorder_timeout(sta, *ptid);
- spin_unlock(&sta->lock);
rcu_read_unlock();
}
@@ -256,7 +254,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
}
/* prepare A-MPDU MLME for Rx aggregation */
- tid_agg_rx = kmalloc(sizeof(struct tid_ampdu_rx), GFP_ATOMIC);
+ tid_agg_rx = kmalloc(sizeof(struct tid_ampdu_rx), GFP_KERNEL);
if (!tid_agg_rx) {
#ifdef CONFIG_MAC80211_HT_DEBUG
if (net_ratelimit())
@@ -280,9 +278,9 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
/* prepare reordering buffer */
tid_agg_rx->reorder_buf =
- kcalloc(buf_size, sizeof(struct sk_buff *), GFP_ATOMIC);
+ kcalloc(buf_size, sizeof(struct sk_buff *), GFP_KERNEL);
tid_agg_rx->reorder_time =
- kcalloc(buf_size, sizeof(unsigned long), GFP_ATOMIC);
+ kcalloc(buf_size, sizeof(unsigned long), GFP_KERNEL);
if (!tid_agg_rx->reorder_buf || !tid_agg_rx->reorder_time) {
#ifdef CONFIG_MAC80211_HT_DEBUG
if (net_ratelimit())
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 18bd0e550600..db134b500caa 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1299,6 +1299,13 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
struct ieee80211_local *local = wiphy_priv(wiphy);
int err;
+ if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
+ err = drv_set_frag_threshold(local, wiphy->frag_threshold);
+
+ if (err)
+ return err;
+ }
+
if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
err = drv_set_coverage_class(local, wiphy->coverage_class);
@@ -1544,27 +1551,54 @@ static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
}
+static enum work_done_result
+ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
+{
+ /*
+ * Use the data embedded in the work struct for reporting
+ * here so if the driver mangled the SKB before dropping
+ * it (which is the only way we really should get here)
+ * then we don't report mangled data.
+ *
+ * If there was no wait time, then by the time we get here
+ * the driver will likely not have reported the status yet,
+ * so in that case userspace will have to deal with it.
+ */
+
+ if (wk->offchan_tx.wait && wk->offchan_tx.frame)
+ cfg80211_mgmt_tx_status(wk->sdata->dev,
+ (unsigned long) wk->offchan_tx.frame,
+ wk->ie, wk->ie_len, false, GFP_KERNEL);
+
+ return WORK_DONE_DESTROY;
+}
+
static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
- struct ieee80211_channel *chan,
+ struct ieee80211_channel *chan, bool offchan,
enum nl80211_channel_type channel_type,
- bool channel_type_valid,
+ bool channel_type_valid, unsigned int wait,
const u8 *buf, size_t len, u64 *cookie)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
struct sta_info *sta;
+ struct ieee80211_work *wk;
const struct ieee80211_mgmt *mgmt = (void *)buf;
u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
IEEE80211_TX_CTL_REQ_TX_STATUS;
+ bool is_offchan = false;
/* Check that we are on the requested channel for transmission */
if (chan != local->tmp_channel &&
chan != local->oper_channel)
- return -EBUSY;
+ is_offchan = true;
if (channel_type_valid &&
(channel_type != local->tmp_channel_type &&
channel_type != local->_oper_channel_type))
+ is_offchan = true;
+
+ if (is_offchan && !offchan)
return -EBUSY;
switch (sdata->vif.type) {
@@ -1598,12 +1632,70 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
IEEE80211_SKB_CB(skb)->flags = flags;
skb->dev = sdata->dev;
- ieee80211_tx_skb(sdata, skb);
*cookie = (unsigned long) skb;
+
+ /*
+ * Can transmit right away if the channel was the
+ * right one and there's no wait involved... If a
+ * wait is involved, we might otherwise not be on
+ * the right channel for long enough!
+ */
+ if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {
+ ieee80211_tx_skb(sdata, skb);
+ return 0;
+ }
+
+ wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL);
+ if (!wk) {
+ kfree_skb(skb);
+ return -ENOMEM;
+ }
+
+ wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
+ wk->chan = chan;
+ wk->sdata = sdata;
+ wk->done = ieee80211_offchan_tx_done;
+ wk->offchan_tx.frame = skb;
+ wk->offchan_tx.wait = wait;
+ wk->ie_len = len;
+ memcpy(wk->ie, buf, len);
+
+ ieee80211_add_work(wk);
return 0;
}
+static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
+ struct net_device *dev,
+ u64 cookie)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_work *wk;
+ int ret = -ENOENT;
+
+ mutex_lock(&local->mtx);
+ list_for_each_entry(wk, &local->work_list, list) {
+ if (wk->sdata != sdata)
+ continue;
+
+ if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
+ continue;
+
+ if (cookie != (unsigned long) wk->offchan_tx.frame)
+ continue;
+
+ wk->timeout = jiffies;
+
+ ieee80211_queue_work(&local->hw, &local->work_work);
+ ret = 0;
+ break;
+ }
+ mutex_unlock(&local->mtx);
+
+ return ret;
+}
+
static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
struct net_device *dev,
u16 frame_type, bool reg)
@@ -1621,6 +1713,23 @@ static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
ieee80211_queue_work(&local->hw, &local->reconfig_filter);
}
+static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+
+ if (local->started)
+ return -EOPNOTSUPP;
+
+ return drv_set_antenna(local, tx_ant, rx_ant);
+}
+
+static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+
+ return drv_get_antenna(local, tx_ant, rx_ant);
+}
+
struct cfg80211_ops mac80211_config_ops = {
.add_virtual_intf = ieee80211_add_iface,
.del_virtual_intf = ieee80211_del_iface,
@@ -1671,6 +1780,9 @@ struct cfg80211_ops mac80211_config_ops = {
.remain_on_channel = ieee80211_remain_on_channel,
.cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
.mgmt_tx = ieee80211_mgmt_tx,
+ .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
.set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
.mgmt_frame_register = ieee80211_mgmt_frame_register,
+ .set_antenna = ieee80211_set_antenna,
+ .get_antenna = ieee80211_get_antenna,
};
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 18260aa99c56..1f02e599a318 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -21,16 +21,30 @@ int mac80211_open_file_generic(struct inode *inode, struct file *file)
return 0;
}
-#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
+#define DEBUGFS_FORMAT_BUFFER_SIZE 100
+
+int mac80211_format_buffer(char __user *userbuf, size_t count,
+ loff_t *ppos, char *fmt, ...)
+{
+ va_list args;
+ char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
+ int res;
+
+ va_start(args, fmt);
+ res = vscnprintf(buf, sizeof(buf), fmt, args);
+ va_end(args);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+
+#define DEBUGFS_READONLY_FILE(name, fmt, value...) \
static ssize_t name## _read(struct file *file, char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
struct ieee80211_local *local = file->private_data; \
- char buf[buflen]; \
- int res; \
\
- res = scnprintf(buf, buflen, fmt "\n", ##value); \
- return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
+ return mac80211_format_buffer(userbuf, count, ppos, \
+ fmt "\n", ##value); \
} \
\
static const struct file_operations name## _ops = { \
@@ -46,13 +60,13 @@ static const struct file_operations name## _ops = { \
debugfs_create_file(#name, mode, phyd, local, &name## _ops);
-DEBUGFS_READONLY_FILE(frequency, 20, "%d",
+DEBUGFS_READONLY_FILE(frequency, "%d",
local->hw.conf.channel->center_freq);
-DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
+DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
local->total_ps_buffered);
-DEBUGFS_READONLY_FILE(wep_iv, 20, "%#08x",
+DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
local->wep_iv & 0xffffff);
-DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
+DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
static ssize_t tsf_read(struct file *file, char __user *user_buf,
@@ -60,13 +74,11 @@ static ssize_t tsf_read(struct file *file, char __user *user_buf,
{
struct ieee80211_local *local = file->private_data;
u64 tsf;
- char buf[100];
tsf = drv_get_tsf(local);
- snprintf(buf, sizeof(buf), "0x%016llx\n", (unsigned long long) tsf);
-
- return simple_read_from_buffer(user_buf, count, ppos, buf, 19);
+ return mac80211_format_buffer(user_buf, count, ppos, "0x%016llx\n",
+ (unsigned long long) tsf);
}
static ssize_t tsf_write(struct file *file,
@@ -131,12 +143,9 @@ static ssize_t noack_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
- int res;
- char buf[10];
- res = scnprintf(buf, sizeof(buf), "%d\n", local->wifi_wme_noack_test);
-
- return simple_read_from_buffer(user_buf, count, ppos, buf, res);
+ return mac80211_format_buffer(user_buf, count, ppos, "%d\n",
+ local->wifi_wme_noack_test);
}
static ssize_t noack_write(struct file *file,
@@ -168,12 +177,8 @@ static ssize_t uapsd_queues_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
- int res;
- char buf[10];
-
- res = scnprintf(buf, sizeof(buf), "0x%x\n", local->uapsd_queues);
-
- return simple_read_from_buffer(user_buf, count, ppos, buf, res);
+ return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n",
+ local->uapsd_queues);
}
static ssize_t uapsd_queues_write(struct file *file,
@@ -215,12 +220,9 @@ static ssize_t uapsd_max_sp_len_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
- int res;
- char buf[10];
- res = scnprintf(buf, sizeof(buf), "0x%x\n", local->uapsd_max_sp_len);
-
- return simple_read_from_buffer(user_buf, count, ppos, buf, res);
+ return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n",
+ local->uapsd_max_sp_len);
}
static ssize_t uapsd_max_sp_len_write(struct file *file,
diff --git a/net/mac80211/debugfs.h b/net/mac80211/debugfs.h
index 09cc9be34796..7c87529630f5 100644
--- a/net/mac80211/debugfs.h
+++ b/net/mac80211/debugfs.h
@@ -4,6 +4,8 @@
#ifdef CONFIG_MAC80211_DEBUGFS
extern void debugfs_hw_add(struct ieee80211_local *local);
extern int mac80211_open_file_generic(struct inode *inode, struct file *file);
+extern int mac80211_format_buffer(char __user *userbuf, size_t count,
+ loff_t *ppos, char *fmt, ...);
#else
static inline void debugfs_hw_add(struct ieee80211_local *local)
{
diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c
index 1243d1db5c59..5822a6ce7671 100644
--- a/net/mac80211/debugfs_key.c
+++ b/net/mac80211/debugfs_key.c
@@ -15,18 +15,17 @@
#include "debugfs.h"
#include "debugfs_key.h"
-#define KEY_READ(name, prop, buflen, format_string) \
+#define KEY_READ(name, prop, format_string) \
static ssize_t key_##name##_read(struct file *file, \
char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
- char buf[buflen]; \
struct ieee80211_key *key = file->private_data; \
- int res = scnprintf(buf, buflen, format_string, key->prop); \
- return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
+ return mac80211_format_buffer(userbuf, count, ppos, \
+ format_string, key->prop); \
}
-#define KEY_READ_D(name) KEY_READ(name, name, 20, "%d\n")
-#define KEY_READ_X(name) KEY_READ(name, name, 20, "0x%x\n")
+#define KEY_READ_D(name) KEY_READ(name, name, "%d\n")
+#define KEY_READ_X(name) KEY_READ(name, name, "0x%x\n")
#define KEY_OPS(name) \
static const struct file_operations key_ ##name## _ops = { \
@@ -39,9 +38,9 @@ static const struct file_operations key_ ##name## _ops = { \
KEY_READ_##format(name) \
KEY_OPS(name)
-#define KEY_CONF_READ(name, buflen, format_string) \
- KEY_READ(conf_##name, conf.name, buflen, format_string)
-#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, 20, "%d\n")
+#define KEY_CONF_READ(name, format_string) \
+ KEY_READ(conf_##name, conf.name, format_string)
+#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, "%d\n")
#define KEY_CONF_OPS(name) \
static const struct file_operations key_ ##name## _ops = { \
@@ -59,7 +58,7 @@ KEY_CONF_FILE(keyidx, D);
KEY_CONF_FILE(hw_key_idx, D);
KEY_FILE(flags, X);
KEY_FILE(tx_rx_count, D);
-KEY_READ(ifindex, sdata->name, IFNAMSIZ + 2, "%s\n");
+KEY_READ(ifindex, sdata->name, "%s\n");
KEY_OPS(ifindex);
static ssize_t key_algorithm_read(struct file *file,
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 4601fea1784d..8bb5af85f469 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -17,20 +17,18 @@
/* sta attributtes */
-#define STA_READ(name, buflen, field, format_string) \
+#define STA_READ(name, field, format_string) \
static ssize_t sta_ ##name## _read(struct file *file, \
char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
- int res; \
struct sta_info *sta = file->private_data; \
- char buf[buflen]; \
- res = scnprintf(buf, buflen, format_string, sta->field); \
- return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
+ return mac80211_format_buffer(userbuf, count, ppos, \
+ format_string, sta->field); \
}
-#define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n")
-#define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n")
-#define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n")
+#define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
+#define STA_READ_U(name, field) STA_READ(name, field, "%u\n")
+#define STA_READ_S(name, field) STA_READ(name, field, "%s\n")
#define STA_OPS(name) \
static const struct file_operations sta_ ##name## _ops = { \
@@ -79,22 +77,18 @@ static ssize_t sta_num_ps_buf_frames_read(struct file *file,
char __user *userbuf,
size_t count, loff_t *ppos)
{
- char buf[20];
struct sta_info *sta = file->private_data;
- int res = scnprintf(buf, sizeof(buf), "%u\n",
- skb_queue_len(&sta->ps_tx_buf));
- return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+ return mac80211_format_buffer(userbuf, count, ppos, "%u\n",
+ skb_queue_len(&sta->ps_tx_buf));
}
STA_OPS(num_ps_buf_frames);
static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
- char buf[20];
struct sta_info *sta = file->private_data;
- int res = scnprintf(buf, sizeof(buf), "%d\n",
- jiffies_to_msecs(jiffies - sta->last_rx));
- return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+ return mac80211_format_buffer(userbuf, count, ppos, "%d\n",
+ jiffies_to_msecs(jiffies - sta->last_rx));
}
STA_OPS(inactive_ms);
@@ -118,34 +112,35 @@ static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
char buf[71 + STA_TID_NUM * 40], *p = buf;
int i;
struct sta_info *sta = file->private_data;
+ struct tid_ampdu_rx *tid_rx;
+ struct tid_ampdu_tx *tid_tx;
+
+ rcu_read_lock();
- spin_lock_bh(&sta->lock);
p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
sta->ampdu_mlme.dialog_token_allocator + 1);
p += scnprintf(p, sizeof(buf) + buf - p,
"TID\t\tRX active\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
+
for (i = 0; i < STA_TID_NUM; i++) {
+ tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
+ tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
+
p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
- p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
- !!sta->ampdu_mlme.tid_rx[i]);
+ p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_rx);
p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
- sta->ampdu_mlme.tid_rx[i] ?
- sta->ampdu_mlme.tid_rx[i]->dialog_token : 0);
+ tid_rx ? tid_rx->dialog_token : 0);
p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
- sta->ampdu_mlme.tid_rx[i] ?
- sta->ampdu_mlme.tid_rx[i]->ssn : 0);
+ tid_rx ? tid_rx->ssn : 0);
- p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
- !!sta->ampdu_mlme.tid_tx[i]);
+ p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
- sta->ampdu_mlme.tid_tx[i] ?
- sta->ampdu_mlme.tid_tx[i]->dialog_token : 0);
+ tid_tx ? tid_tx->dialog_token : 0);
p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
- sta->ampdu_mlme.tid_tx[i] ?
- skb_queue_len(&sta->ampdu_mlme.tid_tx[i]->pending) : 0);
+ tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
p += scnprintf(p, sizeof(buf) + buf - p, "\n");
}
- spin_unlock_bh(&sta->lock);
+ rcu_read_unlock();
return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
}
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 16983825f8e8..4244554d218a 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -233,6 +233,20 @@ static inline void drv_get_tkip_seq(struct ieee80211_local *local,
trace_drv_get_tkip_seq(local, hw_key_idx, iv32, iv16);
}
+static inline int drv_set_frag_threshold(struct ieee80211_local *local,
+ u32 value)
+{
+ int ret = 0;
+
+ might_sleep();
+
+ trace_drv_set_frag_threshold(local, value);
+ if (local->ops->set_frag_threshold)
+ ret = local->ops->set_frag_threshold(&local->hw, value);
+ trace_drv_return_int(local, ret);
+ return ret;
+}
+
static inline int drv_set_rts_threshold(struct ieee80211_local *local,
u32 value)
{
@@ -428,4 +442,27 @@ static inline void drv_channel_switch(struct ieee80211_local *local,
trace_drv_return_void(local);
}
+
+static inline int drv_set_antenna(struct ieee80211_local *local,
+ u32 tx_ant, u32 rx_ant)
+{
+ int ret = -EOPNOTSUPP;
+ might_sleep();
+ if (local->ops->set_antenna)
+ ret = local->ops->set_antenna(&local->hw, tx_ant, rx_ant);
+ trace_drv_set_antenna(local, tx_ant, rx_ant, ret);
+ return ret;
+}
+
+static inline int drv_get_antenna(struct ieee80211_local *local,
+ u32 *tx_ant, u32 *rx_ant)
+{
+ int ret = -EOPNOTSUPP;
+ might_sleep();
+ if (local->ops->get_antenna)
+ ret = local->ops->get_antenna(&local->hw, tx_ant, rx_ant);
+ trace_drv_get_antenna(local, *tx_ant, *rx_ant, ret);
+ return ret;
+}
+
#endif /* __MAC80211_DRIVER_OPS */
diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index 6831fb1641c8..c2772f23ac9c 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -531,6 +531,27 @@ TRACE_EVENT(drv_get_tkip_seq,
)
);
+TRACE_EVENT(drv_set_frag_threshold,
+ TP_PROTO(struct ieee80211_local *local, u32 value),
+
+ TP_ARGS(local, value),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ __field(u32, value)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ __entry->value = value;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT " value:%d",
+ LOCAL_PR_ARG, __entry->value
+ )
+);
+
TRACE_EVENT(drv_set_rts_threshold,
TP_PROTO(struct ieee80211_local *local, u32 value),
@@ -862,6 +883,56 @@ TRACE_EVENT(drv_channel_switch,
)
);
+TRACE_EVENT(drv_set_antenna,
+ TP_PROTO(struct ieee80211_local *local, u32 tx_ant, u32 rx_ant, int ret),
+
+ TP_ARGS(local, tx_ant, rx_ant, ret),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ __field(u32, tx_ant)
+ __field(u32, rx_ant)
+ __field(int, ret)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ __entry->tx_ant = tx_ant;
+ __entry->rx_ant = rx_ant;
+ __entry->ret = ret;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT " tx_ant:%d rx_ant:%d ret:%d",
+ LOCAL_PR_ARG, __entry->tx_ant, __entry->rx_ant, __entry->ret
+ )
+);
+
+TRACE_EVENT(drv_get_antenna,
+ TP_PROTO(struct ieee80211_local *local, u32 tx_ant, u32 rx_ant, int ret),
+
+ TP_ARGS(local, tx_ant, rx_ant, ret),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ __field(u32, tx_ant)
+ __field(u32, rx_ant)
+ __field(int, ret)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ __entry->tx_ant = tx_ant;
+ __entry->rx_ant = rx_ant;
+ __entry->ret = ret;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT " tx_ant:%d rx_ant:%d ret:%d",
+ LOCAL_PR_ARG, __entry->tx_ant, __entry->rx_ant, __entry->ret
+ )
+);
+
/*
* Tracing for API calls that drivers call.
*/
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 239c4836a946..410d104b1347 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -915,6 +915,8 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
sdata->u.ibss.privacy = params->privacy;
sdata->u.ibss.basic_rates = params->basic_rates;
+ memcpy(sdata->vif.bss_conf.mcast_rate, params->mcast_rate,
+ sizeof(params->mcast_rate));
sdata->vif.bss_conf.beacon_int = params->beacon_interval;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index b80c38689927..66b0b52b828d 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -260,6 +260,7 @@ enum ieee80211_work_type {
IEEE80211_WORK_ASSOC_BEACON_WAIT,
IEEE80211_WORK_ASSOC,
IEEE80211_WORK_REMAIN_ON_CHANNEL,
+ IEEE80211_WORK_OFFCHANNEL_TX,
};
/**
@@ -320,6 +321,10 @@ struct ieee80211_work {
struct {
u32 duration;
} remain;
+ struct {
+ struct sk_buff *frame;
+ u32 wait;
+ } offchan_tx;
};
int ie_len;
@@ -349,6 +354,7 @@ struct ieee80211_if_managed {
struct work_struct chswitch_work;
struct work_struct beacon_connection_loss_work;
+ unsigned long beacon_timeout;
unsigned long probe_timeout;
int probe_send_count;
@@ -1264,6 +1270,8 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local,
int powersave);
void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
struct ieee80211_hdr *hdr);
+void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_hdr *hdr);
void ieee80211_beacon_connection_loss_work(struct work_struct *work);
void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
@@ -1278,6 +1286,9 @@ void ieee80211_add_pending_skb(struct ieee80211_local *local,
struct sk_buff *skb);
int ieee80211_add_pending_skbs(struct ieee80211_local *local,
struct sk_buff_head *skbs);
+int ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
+ struct sk_buff_head *skbs,
+ void (*fn)(void *data), void *data);
void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
u16 transaction, u16 auth_alg,
@@ -1287,6 +1298,10 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
const u8 *ie, size_t ie_len,
enum ieee80211_band band, u32 rate_mask,
u8 channel);
+struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
+ u8 *dst,
+ const u8 *ssid, size_t ssid_len,
+ const u8 *ie, size_t ie_len);
void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
const u8 *ssid, size_t ssid_len,
const u8 *ie, size_t ie_len);
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index ccd676b2f599..72df1ca7299b 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -84,10 +84,17 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
goto out_unsupported;
sdata = key->sdata;
- if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
+ /*
+ * The driver doesn't know anything about VLAN interfaces.
+ * Hence, don't send GTKs for VLAN interfaces to the driver.
+ */
+ if (!(key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE))
+ goto out_unsupported;
sdata = container_of(sdata->bss,
struct ieee80211_sub_if_data,
u.ap);
+ }
ret = drv_set_key(key->local, SET_KEY, sdata, sta, &key->conf);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index a3a9421555af..794807914940 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -28,13 +28,19 @@
#include "rate.h"
#include "led.h"
+#define IEEE80211_MAX_NULLFUNC_TRIES 2
#define IEEE80211_MAX_PROBE_TRIES 5
/*
- * beacon loss detection timeout
- * XXX: should depend on beacon interval
+ * Beacon loss timeout is calculated as N frames times the
+ * advertised beacon interval. This may need to be somewhat
+ * higher than what hardware might detect to account for
+ * delays in the host processing frames. But since we also
+ * probe on beacon miss before declaring the connection lost
+ * default to what we want.
*/
-#define IEEE80211_BEACON_LOSS_TIME (2 * HZ)
+#define IEEE80211_BEACON_LOSS_COUNT 7
+
/*
* Time the connection can be idle before we probe
* it to see if we can still talk to the AP.
@@ -121,7 +127,7 @@ void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata)
return;
mod_timer(&sdata->u.mgd.bcn_mon_timer,
- round_jiffies_up(jiffies + IEEE80211_BEACON_LOSS_TIME));
+ round_jiffies_up(jiffies + sdata->u.mgd.beacon_timeout));
}
void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata)
@@ -871,6 +877,9 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
bss_info_changed |= ieee80211_handle_bss_capability(sdata,
cbss->capability, bss->has_erp_value, bss->erp_value);
+ sdata->u.mgd.beacon_timeout = usecs_to_jiffies(ieee80211_tu_to_usec(
+ IEEE80211_BEACON_LOSS_COUNT * bss_conf->beacon_int));
+
sdata->u.mgd.associated = cbss;
memcpy(sdata->u.mgd.bssid, cbss->bssid, ETH_ALEN);
@@ -1026,6 +1035,51 @@ void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
ieee80211_sta_reset_conn_monitor(sdata);
}
+static void ieee80211_reset_ap_probe(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+ if (!(ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
+ IEEE80211_STA_CONNECTION_POLL)))
+ return;
+
+ ifmgd->flags &= ~(IEEE80211_STA_CONNECTION_POLL |
+ IEEE80211_STA_BEACON_POLL);
+ mutex_lock(&sdata->local->iflist_mtx);
+ ieee80211_recalc_ps(sdata->local, -1);
+ mutex_unlock(&sdata->local->iflist_mtx);
+
+ if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
+ return;
+
+ /*
+ * We've received a probe response, but are not sure whether
+ * we have or will be receiving any beacons or data, so let's
+ * schedule the timers again, just in case.
+ */
+ ieee80211_sta_reset_beacon_monitor(sdata);
+
+ mod_timer(&ifmgd->conn_mon_timer,
+ round_jiffies_up(jiffies +
+ IEEE80211_CONNECTION_IDLE_TIME));
+}
+
+void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_hdr *hdr)
+{
+ if (!ieee80211_is_data(hdr->frame_control) &&
+ !ieee80211_is_nullfunc(hdr->frame_control))
+ return;
+
+ ieee80211_sta_reset_conn_monitor(sdata);
+
+ if (ieee80211_is_nullfunc(hdr->frame_control) &&
+ sdata->u.mgd.probe_send_count > 0) {
+ sdata->u.mgd.probe_send_count = 0;
+ ieee80211_queue_work(&sdata->local->hw, &sdata->work);
+ }
+}
+
static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
@@ -1041,8 +1095,19 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)
if (ifmgd->probe_send_count >= unicast_limit)
dst = NULL;
- ssid = ieee80211_bss_get_ie(ifmgd->associated, WLAN_EID_SSID);
- ieee80211_send_probe_req(sdata, dst, ssid + 2, ssid[1], NULL, 0);
+ /*
+ * When the hardware reports an accurate Tx ACK status, it's
+ * better to send a nullfunc frame instead of a probe request,
+ * as it will kick us off the AP quickly if we aren't associated
+ * anymore. The timeout will be reset if the frame is ACKed by
+ * the AP.
+ */
+ if (sdata->local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
+ ieee80211_send_nullfunc(sdata->local, sdata, 0);
+ else {
+ ssid = ieee80211_bss_get_ie(ifmgd->associated, WLAN_EID_SSID);
+ ieee80211_send_probe_req(sdata, dst, ssid + 2, ssid[1], NULL, 0);
+ }
ifmgd->probe_send_count++;
ifmgd->probe_timeout = jiffies + IEEE80211_PROBE_WAIT;
@@ -1108,6 +1173,30 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata,
mutex_unlock(&ifmgd->mtx);
}
+struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ struct sk_buff *skb;
+ const u8 *ssid;
+
+ if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
+ return NULL;
+
+ ASSERT_MGD_MTX(ifmgd);
+
+ if (!ifmgd->associated)
+ return NULL;
+
+ ssid = ieee80211_bss_get_ie(ifmgd->associated, WLAN_EID_SSID);
+ skb = ieee80211_build_probe_req(sdata, ifmgd->associated->bssid,
+ ssid + 2, ssid[1], NULL, 0);
+
+ return skb;
+}
+EXPORT_SYMBOL(ieee80211_ap_probereq_get);
+
static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
@@ -1485,29 +1574,8 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false);
if (ifmgd->associated &&
- memcmp(mgmt->bssid, ifmgd->associated->bssid, ETH_ALEN) == 0 &&
- ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
- IEEE80211_STA_CONNECTION_POLL)) {
- ifmgd->flags &= ~(IEEE80211_STA_CONNECTION_POLL |
- IEEE80211_STA_BEACON_POLL);
- mutex_lock(&sdata->local->iflist_mtx);
- ieee80211_recalc_ps(sdata->local, -1);
- mutex_unlock(&sdata->local->iflist_mtx);
-
- if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
- return;
-
- /*
- * We've received a probe response, but are not sure whether
- * we have or will be receiving any beacons or data, so let's
- * schedule the timers again, just in case.
- */
- ieee80211_sta_reset_beacon_monitor(sdata);
-
- mod_timer(&ifmgd->conn_mon_timer,
- round_jiffies_up(jiffies +
- IEEE80211_CONNECTION_IDLE_TIME));
- }
+ memcmp(mgmt->bssid, ifmgd->associated->bssid, ETH_ALEN) == 0)
+ ieee80211_reset_ap_probe(sdata);
}
/*
@@ -1857,12 +1925,23 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
IEEE80211_STA_CONNECTION_POLL) &&
ifmgd->associated) {
u8 bssid[ETH_ALEN];
+ int max_tries;
memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN);
- if (time_is_after_jiffies(ifmgd->probe_timeout))
+
+ if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
+ max_tries = IEEE80211_MAX_NULLFUNC_TRIES;
+ else
+ max_tries = IEEE80211_MAX_PROBE_TRIES;
+
+ /* ACK received for nullfunc probing frame */
+ if (!ifmgd->probe_send_count)
+ ieee80211_reset_ap_probe(sdata);
+
+ else if (time_is_after_jiffies(ifmgd->probe_timeout))
run_again(ifmgd, ifmgd->probe_timeout);
- else if (ifmgd->probe_send_count < IEEE80211_MAX_PROBE_TRIES) {
+ else if (ifmgd->probe_send_count < max_tries) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
wiphy_debug(local->hw.wiphy,
"%s: No probe response from AP %pM"
@@ -1988,6 +2067,8 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata)
add_timer(&ifmgd->timer);
if (test_and_clear_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running))
add_timer(&ifmgd->chswitch_timer);
+ ieee80211_sta_reset_beacon_monitor(sdata);
+ ieee80211_restart_sta_timer(sdata);
}
#endif
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 33f76993da08..3d5a2cb835c4 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -211,7 +211,8 @@ static bool rc_no_data_or_no_ack(struct ieee80211_tx_rate_control *txrc)
return (info->flags & IEEE80211_TX_CTL_NO_ACK) || !ieee80211_is_data(fc);
}
-static void rc_send_low_broadcast(s8 *idx, u32 basic_rates, u8 max_rate_idx)
+static void rc_send_low_broadcast(s8 *idx, u32 basic_rates,
+ struct ieee80211_supported_band *sband)
{
u8 i;
@@ -222,7 +223,7 @@ static void rc_send_low_broadcast(s8 *idx, u32 basic_rates, u8 max_rate_idx)
if (basic_rates & (1 << *idx))
return; /* selected rate is a basic rate */
- for (i = *idx + 1; i <= max_rate_idx; i++) {
+ for (i = *idx + 1; i <= sband->n_bitrates; i++) {
if (basic_rates & (1 << i)) {
*idx = i;
return;
@@ -237,16 +238,25 @@ bool rate_control_send_low(struct ieee80211_sta *sta,
struct ieee80211_tx_rate_control *txrc)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(txrc->skb);
+ struct ieee80211_supported_band *sband = txrc->sband;
+ int mcast_rate;
if (!sta || !priv_sta || rc_no_data_or_no_ack(txrc)) {
info->control.rates[0].idx = rate_lowest_index(txrc->sband, sta);
info->control.rates[0].count =
(info->flags & IEEE80211_TX_CTL_NO_ACK) ?
1 : txrc->hw->max_rate_tries;
- if (!sta && txrc->ap)
+ if (!sta && txrc->bss) {
+ mcast_rate = txrc->bss_conf->mcast_rate[sband->band];
+ if (mcast_rate > 0) {
+ info->control.rates[0].idx = mcast_rate - 1;
+ return true;
+ }
+
rc_send_low_broadcast(&info->control.rates[0].idx,
txrc->bss_conf->basic_rates,
- txrc->sband->n_bitrates);
+ sband);
+ }
return true;
}
return false;
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 2a18d6602d4a..4ad7a362fcc1 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -371,6 +371,9 @@ minstrel_aggr_check(struct minstrel_priv *mp, struct ieee80211_sta *pubsta, stru
if (likely(sta->ampdu_mlme.tid_tx[tid]))
return;
+ if (skb_get_queue_mapping(skb) == IEEE80211_AC_VO)
+ return;
+
ieee80211_start_tx_ba_session(pubsta, tid);
}
@@ -407,8 +410,8 @@ minstrel_ht_tx_status(void *priv, struct ieee80211_supported_band *sband,
mi->ampdu_len += info->status.ampdu_len;
if (!mi->sample_wait && !mi->sample_tries && mi->sample_count > 0) {
- mi->sample_wait = 4 + 2 * MINSTREL_TRUNC(mi->avg_ampdu_len);
- mi->sample_tries = 3;
+ mi->sample_wait = 16 + 2 * MINSTREL_TRUNC(mi->avg_ampdu_len);
+ mi->sample_tries = 2;
mi->sample_count--;
}
@@ -506,7 +509,9 @@ minstrel_ht_set_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi,
if (!mr->retry_updated)
minstrel_calc_retransmit(mp, mi, index);
- if (mr->probability < MINSTREL_FRAC(20, 100))
+ 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;
@@ -562,7 +567,7 @@ minstrel_get_sample_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
*/
if (minstrel_get_duration(sample_idx) >
minstrel_get_duration(mi->max_tp_rate)) {
- if (mr->sample_skipped < 10)
+ if (mr->sample_skipped < 20)
goto next;
if (mi->sample_slow++ > 2)
@@ -586,6 +591,7 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *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;
@@ -596,10 +602,11 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
info->flags |= mi->tx_flags;
sample_idx = minstrel_get_sample_rate(mp, mi);
if (sample_idx >= 0) {
+ sample = true;
minstrel_ht_set_rate(mp, mi, &ar[0], sample_idx,
txrc, true, false);
minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate,
- txrc, false, true);
+ txrc, false, false);
info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
} else {
minstrel_ht_set_rate(mp, mi, &ar[0], mi->max_tp_rate,
@@ -607,7 +614,7 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate2,
txrc, false, true);
}
- minstrel_ht_set_rate(mp, mi, &ar[2], mi->max_prob_rate, txrc, false, true);
+ minstrel_ht_set_rate(mp, mi, &ar[2], mi->max_prob_rate, txrc, false, !sample);
ar[3].count = 0;
ar[3].idx = -1;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 54fb4a0e76f0..6289525c0998 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -538,6 +538,8 @@ static void ieee80211_release_reorder_frame(struct ieee80211_hw *hw,
{
struct sk_buff *skb = tid_agg_rx->reorder_buf[index];
+ lockdep_assert_held(&tid_agg_rx->reorder_lock);
+
if (!skb)
goto no_frame;
@@ -557,6 +559,8 @@ static void ieee80211_release_reorder_frames(struct ieee80211_hw *hw,
{
int index;
+ lockdep_assert_held(&tid_agg_rx->reorder_lock);
+
while (seq_less(tid_agg_rx->head_seq_num, head_seq_num)) {
index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn) %
tid_agg_rx->buf_size;
@@ -581,6 +585,8 @@ static void ieee80211_sta_reorder_release(struct ieee80211_hw *hw,
{
int index, j;
+ lockdep_assert_held(&tid_agg_rx->reorder_lock);
+
/* release the buffer until next missing frame */
index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn) %
tid_agg_rx->buf_size;
@@ -683,10 +689,11 @@ static bool ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
int index;
bool ret = true;
+ spin_lock(&tid_agg_rx->reorder_lock);
+
buf_size = tid_agg_rx->buf_size;
head_seq_num = tid_agg_rx->head_seq_num;
- spin_lock(&tid_agg_rx->reorder_lock);
/* frame with out of date sequence number */
if (seq_less(mpdu_seq_num, head_seq_num)) {
dev_kfree_skb(skb);
@@ -1102,8 +1109,6 @@ static void ap_sta_ps_end(struct sta_info *sta)
atomic_dec(&sdata->bss->num_sta_ps);
- clear_sta_flags(sta, WLAN_STA_PS_STA);
-
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
printk(KERN_DEBUG "%s: STA %pM aid %d exits power save mode\n",
sdata->name, sta->sta.addr, sta->sta.aid);
@@ -1872,9 +1877,8 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx)
dev->stats.rx_packets++;
dev->stats.rx_bytes += rx->skb->len;
- if (ieee80211_is_data(hdr->frame_control) &&
- !is_multicast_ether_addr(hdr->addr1) &&
- local->hw.conf.dynamic_ps_timeout > 0 && local->ps_sdata) {
+ if (local->ps_sdata && local->hw.conf.dynamic_ps_timeout > 0 &&
+ !is_multicast_ether_addr(((struct ethhdr *)rx->skb->data)->h_dest)) {
mod_timer(&local->dynamic_ps_timer, jiffies +
msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout));
}
@@ -1923,9 +1927,12 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx, struct sk_buff_head *frames)
mod_timer(&tid_agg_rx->session_timer,
TU_TO_EXP_TIME(tid_agg_rx->timeout));
+ spin_lock(&tid_agg_rx->reorder_lock);
/* release stored frames up to start of BAR */
ieee80211_release_reorder_frames(hw, tid_agg_rx, start_seq_num,
frames);
+ spin_unlock(&tid_agg_rx->reorder_lock);
+
kfree_skb(skb);
return RX_QUEUED;
}
@@ -2521,9 +2528,8 @@ static void ieee80211_invoke_rx_handlers(struct ieee80211_rx_data *rx)
}
/*
- * This function makes calls into the RX path. Therefore the
- * caller must hold the sta_info->lock and everything has to
- * be under rcu_read_lock protection as well.
+ * This function makes calls into the RX path, therefore
+ * it has to be invoked under RCU read lock.
*/
void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid)
{
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 6d8f897d8763..eff58571fd7e 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -199,8 +199,11 @@ static void sta_unblock(struct work_struct *wk)
if (!test_sta_flags(sta, WLAN_STA_PS_STA))
ieee80211_sta_ps_deliver_wakeup(sta);
- else if (test_and_clear_sta_flags(sta, WLAN_STA_PSPOLL))
+ else if (test_and_clear_sta_flags(sta, WLAN_STA_PSPOLL)) {
+ clear_sta_flags(sta, WLAN_STA_PS_DRIVER);
ieee80211_sta_ps_deliver_poll_response(sta);
+ } else
+ clear_sta_flags(sta, WLAN_STA_PS_DRIVER);
}
static int sta_prepare_rate_control(struct ieee80211_local *local,
@@ -880,6 +883,13 @@ struct ieee80211_sta *ieee80211_find_sta(struct ieee80211_vif *vif,
}
EXPORT_SYMBOL(ieee80211_find_sta);
+static void clear_sta_ps_flags(void *_sta)
+{
+ struct sta_info *sta = _sta;
+
+ clear_sta_flags(sta, WLAN_STA_PS_DRIVER | WLAN_STA_PS_STA);
+}
+
/* powersave support code */
void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)
{
@@ -894,7 +904,8 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)
/* Send all buffered frames to the station */
sent = ieee80211_add_pending_skbs(local, &sta->tx_filtered);
- buffered = ieee80211_add_pending_skbs(local, &sta->ps_tx_buf);
+ buffered = ieee80211_add_pending_skbs_fn(local, &sta->ps_tx_buf,
+ clear_sta_ps_flags, sta);
sent += buffered;
local->total_ps_buffered -= buffered;
@@ -973,7 +984,7 @@ void ieee80211_sta_block_awake(struct ieee80211_hw *hw,
if (block)
set_sta_flags(sta, WLAN_STA_PS_DRIVER);
- else
+ else if (test_sta_flags(sta, WLAN_STA_PS_DRIVER))
ieee80211_queue_work(hw, &sta->drv_unblock_wk);
}
EXPORT_SYMBOL(ieee80211_sta_block_awake);
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 9265acadef32..05f11302443b 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -81,13 +81,14 @@ enum ieee80211_sta_info_flags {
* @stop_initiator: initiator of a session stop
* @tx_stop: TX DelBA frame when stopping
*
- * This structure is protected by RCU and the per-station
- * spinlock. Assignments to the array holding it must hold
- * the spinlock, only the TX path can access it under RCU
- * lock-free if, and only if, the state has the flag
- * %HT_AGG_STATE_OPERATIONAL set. Otherwise, the TX path
- * must also acquire the spinlock and re-check the state,
- * see comments in the tx code touching it.
+ * This structure's lifetime is managed by RCU, assignments to
+ * the array holding it must hold the aggregation mutex.
+ *
+ * The TX path can access it under RCU lock-free if, and
+ * only if, the state has the flag %HT_AGG_STATE_OPERATIONAL
+ * set. Otherwise, the TX path must also acquire the spinlock
+ * and re-check the state, see comments in the tx code
+ * touching it.
*/
struct tid_ampdu_tx {
struct rcu_head rcu_head;
@@ -115,15 +116,13 @@ struct tid_ampdu_tx {
* @rcu_head: RCU head used for freeing this struct
* @reorder_lock: serializes access to reorder buffer, see below.
*
- * This structure is protected by RCU and the per-station
- * spinlock. Assignments to the array holding it must hold
- * the spinlock.
+ * This structure's lifetime is managed by RCU, assignments to
+ * the array holding it must hold the aggregation mutex.
*
- * The @reorder_lock is used to protect the variables and
- * arrays such as @reorder_buf, @reorder_time, @head_seq_num,
- * @stored_mpdu_num and @reorder_time from being corrupted by
- * concurrent access of the RX path and the expired frame
- * release timer.
+ * The @reorder_lock is used to protect the members of this
+ * struct, except for @timeout, @buf_size and @dialog_token,
+ * which are constant across the lifetime of the struct (the
+ * dialog token being used only for debugging).
*/
struct tid_ampdu_rx {
struct rcu_head rcu_head;
@@ -248,6 +247,7 @@ enum plink_state {
* @sta: station information we share with the driver
* @dead: set to true when sta is unlinked
* @uploaded: set to true when sta is uploaded to the driver
+ * @lost_packets: number of consecutive lost packets
*/
struct sta_info {
/* General information, mostly static */
@@ -335,6 +335,8 @@ struct sta_info {
} debugfs;
#endif
+ unsigned int lost_packets;
+
/* keep last! */
struct ieee80211_sta sta;
};
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 3153c19893b8..4958710a7d92 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -155,8 +155,21 @@ static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb)
ieee80211_queue_work(&local->hw, &local->recalc_smps);
}
+
+ if ((sdata->vif.type == NL80211_IFTYPE_STATION) &&
+ (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS))
+ ieee80211_sta_tx_notify(sdata, (void *) skb->data);
}
+/*
+ * Use a static threshold for now, best value to be determined
+ * by testing ...
+ * Should it depend on:
+ * - on # of retransmissions
+ * - current throughput (higher value for higher tpt)?
+ */
+#define STA_LOST_PKT_THRESHOLD 50
+
void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct sk_buff *skb2;
@@ -243,6 +256,19 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
if (!(info->flags & IEEE80211_TX_CTL_INJECTED) &&
(info->flags & IEEE80211_TX_STAT_ACK))
ieee80211_frame_acked(sta, skb);
+
+ if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) {
+ if (info->flags & IEEE80211_TX_STAT_ACK) {
+ if (sta->lost_packets)
+ sta->lost_packets = 0;
+ } else if (++sta->lost_packets >= STA_LOST_PKT_THRESHOLD) {
+ cfg80211_cqm_pktloss_notify(sta->sdata->dev,
+ sta->sta.addr,
+ sta->lost_packets,
+ GFP_ATOMIC);
+ sta->lost_packets = 0;
+ }
+ }
}
rcu_read_unlock();
@@ -295,10 +321,23 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
msecs_to_jiffies(10));
}
- if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX)
+ if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) {
+ struct ieee80211_work *wk;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(wk, &local->work_list, list) {
+ if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
+ continue;
+ if (wk->offchan_tx.frame != skb)
+ continue;
+ wk->offchan_tx.frame = NULL;
+ break;
+ }
+ rcu_read_unlock();
cfg80211_mgmt_tx_status(
skb->dev, (unsigned long) skb, skb->data, skb->len,
!!(info->flags & IEEE80211_TX_STAT_ACK), GFP_ATOMIC);
+ }
/* this was a transmitted frame, but now we want to reuse it */
skb_orphan(skb);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index df6aac523532..2ba742656825 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -622,7 +622,8 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
txrc.max_rate_idx = -1;
else
txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1;
- txrc.ap = tx->sdata->vif.type == NL80211_IFTYPE_AP;
+ txrc.bss = (tx->sdata->vif.type == NL80211_IFTYPE_AP ||
+ tx->sdata->vif.type == NL80211_IFTYPE_ADHOC);
/* set up RTS protection if desired */
if (len > tx->local->hw.wiphy->rts_threshold) {
@@ -1033,6 +1034,7 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
struct ieee80211_radiotap_header *rthdr =
(struct ieee80211_radiotap_header *) skb->data;
struct ieee80211_supported_band *sband;
+ bool hw_frag;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len,
NULL);
@@ -1042,6 +1044,9 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
tx->flags &= ~IEEE80211_TX_FRAGMENTED;
+ /* packet is fragmented in HW if we have a non-NULL driver callback */
+ hw_frag = (tx->local->ops->set_frag_threshold != NULL);
+
/*
* for every radiotap entry that is present
* (ieee80211_radiotap_iterator_next returns -ENOENT when no more
@@ -1078,7 +1083,8 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
}
if (*iterator.this_arg & IEEE80211_RADIOTAP_F_WEP)
info->flags &= ~IEEE80211_TX_INTFL_DONT_ENCRYPT;
- if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG)
+ if ((*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG) &&
+ !hw_frag)
tx->flags |= IEEE80211_TX_FRAGMENTED;
break;
@@ -1181,8 +1187,10 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
/*
* Set this flag (used below to indicate "automatic fragmentation"),
* it will be cleared/left by radiotap as desired.
+ * Only valid when fragmentation is done by the stack.
*/
- tx->flags |= IEEE80211_TX_FRAGMENTED;
+ if (!local->ops->set_frag_threshold)
+ tx->flags |= IEEE80211_TX_FRAGMENTED;
/* process and remove the injection radiotap header */
if (unlikely(info->flags & IEEE80211_TX_INTFL_HAS_RADIOTAP)) {
@@ -2306,7 +2314,7 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
txrc.max_rate_idx = -1;
else
txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1;
- txrc.ap = true;
+ txrc.bss = true;
rate_control_get_rate(sdata, NULL, &txrc);
info->control.vif = vif;
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 0b6fc92bc0d7..e497476174ce 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -368,8 +368,9 @@ void ieee80211_add_pending_skb(struct ieee80211_local *local,
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
}
-int ieee80211_add_pending_skbs(struct ieee80211_local *local,
- struct sk_buff_head *skbs)
+int ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
+ struct sk_buff_head *skbs,
+ void (*fn)(void *data), void *data)
{
struct ieee80211_hw *hw = &local->hw;
struct sk_buff *skb;
@@ -394,6 +395,9 @@ int ieee80211_add_pending_skbs(struct ieee80211_local *local,
__skb_queue_tail(&local->pending[queue], skb);
}
+ if (fn)
+ fn(data);
+
for (i = 0; i < hw->queues; i++)
__ieee80211_wake_queue(hw, i,
IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
@@ -402,6 +406,12 @@ int ieee80211_add_pending_skbs(struct ieee80211_local *local,
return ret;
}
+int ieee80211_add_pending_skbs(struct ieee80211_local *local,
+ struct sk_buff_head *skbs)
+{
+ return ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
+}
+
void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
enum queue_stop_reason reason)
{
@@ -1011,9 +1021,10 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
return pos - buffer;
}
-void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
- const u8 *ssid, size_t ssid_len,
- const u8 *ie, size_t ie_len)
+struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
+ u8 *dst,
+ const u8 *ssid, size_t ssid_len,
+ const u8 *ie, size_t ie_len)
{
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
@@ -1027,7 +1038,7 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
if (!buf) {
printk(KERN_DEBUG "%s: failed to allocate temporary IE "
"buffer\n", sdata->name);
- return;
+ return NULL;
}
chan = ieee80211_frequency_to_channel(
@@ -1050,8 +1061,20 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
}
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
- ieee80211_tx_skb(sdata, skb);
kfree(buf);
+
+ return skb;
+}
+
+void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
+ const u8 *ssid, size_t ssid_len,
+ const u8 *ie, size_t ie_len)
+{
+ struct sk_buff *skb;
+
+ skb = ieee80211_build_probe_req(sdata, dst, ssid, ssid_len, ie, ie_len);
+ if (skb)
+ ieee80211_tx_skb(sdata, skb);
}
u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
@@ -1152,6 +1175,9 @@ int ieee80211_reconfig(struct ieee80211_local *local)
}
mutex_unlock(&local->sta_mtx);
+ /* setup fragmentation threshold */
+ drv_set_frag_threshold(local, hw->wiphy->frag_threshold);
+
/* setup RTS threshold */
drv_set_rts_threshold(local, hw->wiphy->rts_threshold);
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 34e6d02da779..58e75bbc1f91 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -21,7 +21,16 @@
/* Default mapping in classifier to work with default
* queue setup.
*/
-const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 };
+const int ieee802_1d_to_ac[8] = {
+ IEEE80211_AC_BE,
+ IEEE80211_AC_BK,
+ IEEE80211_AC_BK,
+ IEEE80211_AC_BE,
+ IEEE80211_AC_VI,
+ IEEE80211_AC_VI,
+ IEEE80211_AC_VO,
+ IEEE80211_AC_VO
+};
static int wme_downgrade_ac(struct sk_buff *skb)
{
diff --git a/net/mac80211/work.c b/net/mac80211/work.c
index ae344d1ba056..2b5c3f267198 100644
--- a/net/mac80211/work.c
+++ b/net/mac80211/work.c
@@ -561,6 +561,25 @@ ieee80211_remain_on_channel_timeout(struct ieee80211_work *wk)
}
static enum work_action __must_check
+ieee80211_offchannel_tx(struct ieee80211_work *wk)
+{
+ if (!wk->started) {
+ wk->timeout = jiffies + msecs_to_jiffies(wk->offchan_tx.wait);
+
+ /*
+ * After this, offchan_tx.frame remains but now is no
+ * longer a valid pointer -- we still need it as the
+ * cookie for canceling this work.
+ */
+ ieee80211_tx_skb(wk->sdata, wk->offchan_tx.frame);
+
+ return WORK_ACT_NONE;
+ }
+
+ return WORK_ACT_TIMEOUT;
+}
+
+static enum work_action __must_check
ieee80211_assoc_beacon_wait(struct ieee80211_work *wk)
{
if (wk->started)
@@ -955,6 +974,9 @@ static void ieee80211_work_work(struct work_struct *work)
case IEEE80211_WORK_REMAIN_ON_CHANNEL:
rma = ieee80211_remain_on_channel_timeout(wk);
break;
+ case IEEE80211_WORK_OFFCHANNEL_TX:
+ rma = ieee80211_offchannel_tx(wk);
+ break;
case IEEE80211_WORK_ASSOC_BEACON_WAIT:
rma = ieee80211_assoc_beacon_wait(wk);
break;
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