ath9k: optimize waking tx queues, slightly improves performance under load

[openwrt.git] / package / mac80211 / patches / 513-ath9k_channelbw_debugfs.patch

diff --git a/package/mac80211/patches/513-ath9k_channelbw_debugfs.patch b/package/mac80211/patches/513-ath9k_channelbw_debugfs.patch
index 6ae1323..713a443 100644 (file)
--- a/package/mac80211/patches/513-ath9k_channelbw_debugfs.patch
+++ b/package/mac80211/patches/513-ath9k_channelbw_debugfs.patch
@@ -1,6 +1,6 @@
 --- a/drivers/net/wireless/ath/ath9k/ath9k.h
 +++ b/drivers/net/wireless/ath/ath9k/ath9k.h
 --- a/drivers/net/wireless/ath/ath9k/ath9k.h
 +++ b/drivers/net/wireless/ath/ath9k/ath9k.h

-@@ -587,6 +587,7 @@ struct ath_softc {
+@@ -624,6 +624,7 @@ struct ath_softc {

        struct ieee80211_hw *hw;
        struct device *dev;
  
        struct ieee80211_hw *hw;
        struct device *dev;
  


@@ -8,50 +8,134 @@
        int chan_idx;
        int chan_is_ht;
        struct survey_info *cur_survey;
        int chan_idx;
        int chan_is_ht;
        struct survey_info *cur_survey;

+@@ -691,6 +692,7 @@ struct ath_softc {
+       u8 ant_tx, ant_rx;
+ };
+ 
++int ath9k_config(struct ieee80211_hw *hw, u32 changed);
+ void ath9k_tasklet(unsigned long data);
+ int ath_cabq_update(struct ath_softc *);
+ 

 --- a/drivers/net/wireless/ath/ath9k/debug.c
 +++ b/drivers/net/wireless/ath/ath9k/debug.c
 --- a/drivers/net/wireless/ath/ath9k/debug.c
 +++ b/drivers/net/wireless/ath/ath9k/debug.c

-@@ -1378,6 +1378,9 @@ int ath9k_init_debug(struct ath_hw *ah)
+@@ -1576,6 +1576,50 @@ static const struct file_operations fops
+       .owner = THIS_MODULE
+ };
+ 
++
++static ssize_t read_file_chan_bw(struct file *file, char __user *user_buf,
++                           size_t count, loff_t *ppos)
++{
++      struct ath_softc *sc = file->private_data;
++      char buf[32];
++      unsigned int len;
++
++      len = sprintf(buf, "0x%08x\n", sc->chan_bw);
++      return simple_read_from_buffer(user_buf, count, ppos, buf, len);
++}
++
++static ssize_t write_file_chan_bw(struct file *file, const char __user *user_buf,
++                           size_t count, loff_t *ppos)
++{
++      struct ath_softc *sc = file->private_data;
++      unsigned long chan_bw;
++      char buf[32];
++      ssize_t len;
++
++      len = min(count, sizeof(buf) - 1);
++      if (copy_from_user(buf, user_buf, len))
++              return -EFAULT;
++
++      buf[len] = '\0';
++      if (strict_strtoul(buf, 0, &chan_bw))
++              return -EINVAL;
++
++      sc->chan_bw = chan_bw;
++      if (!(sc->sc_flags & SC_OP_INVALID))
++              ath9k_config(sc->hw, IEEE80211_CONF_CHANGE_CHANNEL);
++
++      return count;
++}
++
++static const struct file_operations fops_chanbw = {
++      .read = read_file_chan_bw,
++      .write = write_file_chan_bw,
++      .open = ath9k_debugfs_open,
++      .owner = THIS_MODULE,
++      .llseek = default_llseek,
++};
++
++
+ int ath9k_init_debug(struct ath_hw *ah)
+ {
+       struct ath_common *common = ath9k_hw_common(ah);
+@@ -1642,5 +1686,8 @@ int ath9k_init_debug(struct ath_hw *ah)

        debugfs_create_file("eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
                            &fops_eeprom);
  
        debugfs_create_file("eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
                            &fops_eeprom);
  

-+      debugfs_create_u32("chanbw", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
-+                         &sc->chan_bw);
++      debugfs_create_file("chanbw", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
++                          sc, &fops_chanbw);

 +
 +

-       sc->debug.regidx = 0;

        return 0;
  }
 --- a/drivers/net/wireless/ath/ath9k/main.c
 +++ b/drivers/net/wireless/ath/ath9k/main.c
        return 0;
  }
 --- a/drivers/net/wireless/ath/ath9k/main.c
 +++ b/drivers/net/wireless/ath/ath9k/main.c

-@@ -226,6 +226,7 @@ static int ath_set_channel(struct ath_so
-       bool fastcc = true, stopped;
-       struct ieee80211_channel *channel = hw->conf.channel;
-       struct ath9k_hw_cal_data *caldata = NULL;
-+      u32 oldflags;
-       int r;
- 
-       if (sc->sc_flags & SC_OP_INVALID)
-@@ -268,6 +269,24 @@ static int ath_set_channel(struct ath_so
-       if (!stopped || !(sc->sc_flags & SC_OP_OFFCHANNEL))
-               fastcc = false;
- 
-+      oldflags = hchan->channelFlags;
-+      switch (sc->chan_bw) {
-+      case 5:
-+              hchan->channelFlags &= ~CHANNEL_HALF;
-+              hchan->channelFlags |= CHANNEL_QUARTER;
-+              break;
-+      case 10:
-+              hchan->channelFlags &= ~CHANNEL_QUARTER;
-+              hchan->channelFlags |= CHANNEL_HALF;
-+              break;
-+      default:
-+              hchan->channelFlags &= ~(CHANNEL_HALF | CHANNEL_QUARTER);
-+              break;
-+      }
-+
-+      if (oldflags != hchan->channelFlags)
-+              fastcc = false;
-+
-       if (!(sc->sc_flags & SC_OP_OFFCHANNEL))
-               caldata = &sc->caldata;
+@@ -1537,7 +1537,7 @@ static void ath9k_disable_ps(struct ath_
+ 
+ }
+ 
+-static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
++int ath9k_config(struct ieee80211_hw *hw, u32 changed)
+ {
+       struct ath_softc *sc = hw->priv;
+       struct ath_hw *ah = sc->sc_ah;
+@@ -1581,9 +1581,11 @@ static int ath9k_config(struct ieee80211

  
  

+       if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+               struct ieee80211_channel *curchan = hw->conf.channel;
++              struct ath9k_channel *hchan;
+               int pos = curchan->hw_value;
+               int old_pos = -1;
+               unsigned long flags;
++              u32 oldflags;
+ 
+               if (ah->curchan)
+                       old_pos = ah->curchan - &ah->channels[0];
+@@ -1631,7 +1633,23 @@ static int ath9k_config(struct ieee80211
+                       memset(&sc->survey[pos], 0, sizeof(struct survey_info));
+               }
+ 
+-              if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) {
++              hchan = &sc->sc_ah->channels[pos];
++              oldflags = hchan->channelFlags;
++              switch (sc->chan_bw) {
++              case 5:
++                      hchan->channelFlags &= ~CHANNEL_HALF;
++                      hchan->channelFlags |= CHANNEL_QUARTER;
++                      break;
++              case 10:
++                      hchan->channelFlags &= ~CHANNEL_QUARTER;
++                      hchan->channelFlags |= CHANNEL_HALF;
++                      break;
++              default:
++                      hchan->channelFlags &= ~(CHANNEL_HALF | CHANNEL_QUARTER);
++                      break;
++              }
++
++              if (ath_set_channel(sc, hw, hchan) < 0) {
+                       ath_err(common, "Unable to set channel\n");
+                       mutex_unlock(&sc->mutex);
+                       return -EINVAL;
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -1576,6 +1576,10 @@ int ath9k_hw_reset(struct ath_hw *ah, st
+           caldata->rtt_hist.num_readings)
+               allow_fbs = true;
+ 
++      if (!ah->curchan || ((ah->curchan->channelFlags ^ chan->channelFlags) &
++          (CHANNEL_HALF | CHANNEL_QUARTER)))
++              bChannelChange = false;
++
+       if (bChannelChange &&
+           (ah->chip_fullsleep != true) &&
+           (ah->curchan != NULL) &&