diff options
Diffstat (limited to 'net/mac80211/rate.c')
-rw-r--r-- | net/mac80211/rate.c | 52 |
1 files changed, 24 insertions, 28 deletions
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c index 5d786720d935..3fa7ab285066 100644 --- a/net/mac80211/rate.c +++ b/net/mac80211/rate.c | |||
@@ -199,48 +199,44 @@ static void rate_control_release(struct kref *kref) | |||
199 | } | 199 | } |
200 | 200 | ||
201 | void rate_control_get_rate(struct ieee80211_sub_if_data *sdata, | 201 | void rate_control_get_rate(struct ieee80211_sub_if_data *sdata, |
202 | struct ieee80211_supported_band *sband, | 202 | struct sta_info *sta, |
203 | struct sta_info *sta, struct sk_buff *skb, | 203 | struct ieee80211_tx_rate_control *txrc) |
204 | struct rate_selection *sel) | ||
205 | { | 204 | { |
206 | struct rate_control_ref *ref = sdata->local->rate_ctrl; | 205 | struct rate_control_ref *ref = sdata->local->rate_ctrl; |
207 | void *priv_sta = NULL; | 206 | void *priv_sta = NULL; |
208 | struct ieee80211_sta *ista = NULL; | 207 | struct ieee80211_sta *ista = NULL; |
208 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(txrc->skb); | ||
209 | int i; | 209 | int i; |
210 | 210 | ||
211 | sel->rate_idx = -1; | ||
212 | sel->nonerp_idx = -1; | ||
213 | sel->probe_idx = -1; | ||
214 | sel->max_rate_idx = sdata->max_ratectrl_rateidx; | ||
215 | |||
216 | if (sta) { | 211 | if (sta) { |
217 | ista = &sta->sta; | 212 | ista = &sta->sta; |
218 | priv_sta = sta->rate_ctrl_priv; | 213 | priv_sta = sta->rate_ctrl_priv; |
219 | } | 214 | } |
220 | 215 | ||
216 | for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { | ||
217 | info->control.rates[i].idx = -1; | ||
218 | info->control.rates[i].flags = 0; | ||
219 | info->control.rates[i].count = 1; | ||
220 | } | ||
221 | |||
221 | if (sta && sdata->force_unicast_rateidx > -1) | 222 | if (sta && sdata->force_unicast_rateidx > -1) |
222 | sel->rate_idx = sdata->force_unicast_rateidx; | 223 | info->control.rates[0].idx = sdata->force_unicast_rateidx; |
223 | else | 224 | else |
224 | ref->ops->get_rate(ref->priv, sband, ista, priv_sta, skb, sel); | 225 | ref->ops->get_rate(ref->priv, ista, priv_sta, txrc); |
225 | 226 | ||
226 | if (sdata->max_ratectrl_rateidx > -1 && | 227 | /* |
227 | sel->rate_idx > sdata->max_ratectrl_rateidx) | 228 | * try to enforce the maximum rate the user wanted |
228 | sel->rate_idx = sdata->max_ratectrl_rateidx; | 229 | */ |
229 | 230 | if (sdata->max_ratectrl_rateidx > -1) | |
230 | BUG_ON(sel->rate_idx < 0); | 231 | for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { |
231 | 232 | if (info->control.rates[i].flags & IEEE80211_TX_RC_MCS) | |
232 | /* Select a non-ERP backup rate. */ | 233 | continue; |
233 | if (sel->nonerp_idx < 0) { | 234 | info->control.rates[i].idx = |
234 | for (i = 0; i < sband->n_bitrates; i++) { | 235 | min_t(s8, info->control.rates[i].idx, |
235 | struct ieee80211_rate *rate = &sband->bitrates[i]; | 236 | sdata->max_ratectrl_rateidx); |
236 | if (sband->bitrates[sel->rate_idx].bitrate < rate->bitrate) | ||
237 | break; | ||
238 | |||
239 | if (rate_supported(ista, sband->band, i) && | ||
240 | !(rate->flags & IEEE80211_RATE_ERP_G)) | ||
241 | sel->nonerp_idx = i; | ||
242 | } | ||
243 | } | 237 | } |
238 | |||
239 | BUG_ON(info->control.rates[0].idx < 0); | ||
244 | } | 240 | } |
245 | 241 | ||
246 | struct rate_control_ref *rate_control_get(struct rate_control_ref *ref) | 242 | struct rate_control_ref *rate_control_get(struct rate_control_ref *ref) |