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| author | Jouni Malinen <jouni.malinen@atheros.com> | 2010-01-06 13:09:08 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-01-12 13:50:11 -0500 |
| commit | 37eb0b164cf9fa9f70c8500926f5cde7c652f48e (patch) | |
| tree | 9260e7045f32268c8c4ded718677711d371cd5ed /net/mac80211/cfg.c | |
| parent | e00cfce0cb2a397859607bf515c6de9ce064b64a (diff) | |
| download | linux-37eb0b164cf9fa9f70c8500926f5cde7c652f48e.tar.bz2 | |
cfg80211/mac80211: Use more generic bitrate mask for rate control
Extend struct cfg80211_bitrate_mask to actually use a bitfield mask
instead of just a single fixed or maximum rate index. This change
itself does not modify the behavior (except for debugfs files), but it
prepares cfg80211 and mac80211 for a new nl80211 command for setting
which rates can be used in TX rate control.
Since frames are now going through the rate control algorithm
unconditionally, the internal IEEE80211_TX_INTFL_RCALGO flag can now
be removed. The RC implementations can use the rate_idx_mask value to
optimize their behavior if only a single rate is enabled.
The old max_rate_idx in struct ieee80211_tx_rate_control is maintained
(but commented as deprecated) for backwards compatibility with existing
RC implementations. Once these implementations have been updated to
use the more generic rate_idx_mask, the max_rate_idx value can be
removed.
Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/cfg.c')
| -rw-r--r-- | net/mac80211/cfg.c | 32 |
1 files changed, 3 insertions, 29 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 976014c5e742..e5dda6fb8dff 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1406,8 +1406,6 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); int i; - u32 target_rate; - struct ieee80211_supported_band *sband; /* * This _could_ be supported by providing a hook for @@ -1417,35 +1415,11 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) return -EOPNOTSUPP; - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - /* - * target_rate = -1, rate->fixed = 0 means auto only, so use all rates - * target_rate = X, rate->fixed = 1 means only rate X - * target_rate = X, rate->fixed = 0 means all rates <= X - */ - sdata->max_ratectrl_rateidx = -1; - sdata->force_unicast_rateidx = -1; - if (mask->fixed) - target_rate = mask->fixed / 100; - else if (mask->maxrate) - target_rate = mask->maxrate / 100; - else - return 0; + for (i = 0; i < IEEE80211_NUM_BANDS; i++) + sdata->rc_rateidx_mask[i] = mask->control[i].legacy; - for (i = 0; i< sband->n_bitrates; i++) { - if (target_rate != sband->bitrates[i].bitrate) - continue; - - /* requested bitrate found */ - sdata->max_ratectrl_rateidx = i; - if (mask->fixed) - sdata->force_unicast_rateidx = i; - return 0; - } - - return -EINVAL; + return 0; } static int ieee80211_remain_on_channel(struct wiphy *wiphy, |