mac80211: implement .rate_update in minstrel_ht

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20033 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/mac80211/patches/560-minstrel_ht.patch b/package/mac80211/patches/560-minstrel_ht.patch
index 6726173..2eaab62 100644 (file)
--- a/package/mac80211/patches/560-minstrel_ht.patch
+++ b/package/mac80211/patches/560-minstrel_ht.patch
@@ -68,7 +68,7 @@
  
 --- /dev/null
 +++ b/net/mac80211/rc80211_minstrel_ht.c
-@@ -0,0 +1,803 @@
+@@ -0,0 +1,825 @@
 +/*
 + * Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org>
 + *
@@ -706,6 +706,39 @@
 +      }
 +}
 +
++static void
++minstrel_ht_update_cap(struct minstrel_ht_sta *mi, struct ieee80211_sta *sta,
++                       enum nl80211_channel_type oper_chan_type)
++{
++      struct ieee80211_mcs_info *mcs = &sta->ht_cap.mcs;
++      u16 sta_cap = sta->ht_cap.cap;
++      int i;
++
++      if (oper_chan_type != NL80211_CHAN_HT40MINUS &&
++          oper_chan_type != NL80211_CHAN_HT40PLUS)
++              sta_cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
++
++      for (i = 0; i < ARRAY_SIZE(mi->groups); i++) {
++              u16 req = 0;
++
++              mi->groups[i].supported = 0;
++              if (minstrel_mcs_groups[i].flags & IEEE80211_TX_RC_SHORT_GI) {
++                      if (minstrel_mcs_groups[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
++                              req |= IEEE80211_HT_CAP_SGI_40;
++                      else
++                              req |= IEEE80211_HT_CAP_SGI_20;
++              }
++
++              if (minstrel_mcs_groups[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
++                      req |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
++
++              if ((sta_cap & req) != req)
++                      continue;
++
++              mi->groups[i].supported =
++                      mcs->rx_mask[minstrel_mcs_groups[i].streams - 1];
++      }
++}
 +
 +static void
 +minstrel_ht_rate_init(void *priv, struct ieee80211_supported_band *sband,
@@ -714,11 +747,8 @@
 +      struct minstrel_priv *mp = priv;
 +      struct minstrel_ht_sta_priv *msp = priv_sta;
 +      struct minstrel_ht_sta *mi = &msp->ht;
-+      struct ieee80211_mcs_info *mcs = &sta->ht_cap.mcs;
 +      struct ieee80211_local *local = hw_to_local(mp->hw);
-+      int tx_streams;
 +      int ack_dur;
-+      int i;
 +
 +      /* fall back to the old minstrel for legacy stations */
 +      if (sta && !sta->ht_cap.ht_supported) {
@@ -741,28 +771,19 @@
 +      mi->overhead_rtscts = mi->overhead + 2 * ack_dur;
 +
 +      mi->avg_ampdu_len = MINSTREL_FRAC(1, 1);
-+      tx_streams = ((mcs->tx_params & IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK) >>
-+                      IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT) + 1;
-+
-+      for (i = 0; i < ARRAY_SIZE(mi->groups); i++) {
-+              u16 req = 0;
-+
-+              if (minstrel_mcs_groups[i].flags & IEEE80211_TX_RC_SHORT_GI) {
-+                      if (minstrel_mcs_groups[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
-+                              req |= IEEE80211_HT_CAP_SGI_40;
-+                      else
-+                              req |= IEEE80211_HT_CAP_SGI_20;
-+              }
 +
-+              if (minstrel_mcs_groups[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
-+                      req |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
++      minstrel_ht_update_cap(mi, sta, mp->hw->conf.channel_type);
++}
 +
-+              if ((sta->ht_cap.cap & req) != req)
-+                      continue;
++static void
++minstrel_ht_rate_update(void *priv, struct ieee80211_supported_band *sband,
++                        struct ieee80211_sta *sta, void *priv_sta,
++                        u32 changed, enum nl80211_channel_type oper_chan_type)
++{
++      struct minstrel_ht_sta_priv *msp = priv_sta;
++      struct minstrel_ht_sta *mi = &msp->ht;
 +
-+              mi->groups[i].supported =
-+                      mcs->rx_mask[minstrel_mcs_groups[i].streams - 1];
-+      }
++      minstrel_ht_update_cap(mi, sta, oper_chan_type);
 +}
 +
 +static void *
@@ -829,6 +850,7 @@
 +      .tx_status = minstrel_ht_tx_status,
 +      .get_rate = minstrel_ht_get_rate,
 +      .rate_init = minstrel_ht_rate_init,
++      .rate_update = minstrel_ht_rate_update,
 +      .alloc_sta = minstrel_ht_alloc_sta,
 +      .free_sta = minstrel_ht_free_sta,
 +      .alloc = minstrel_ht_alloc,