diff options
Diffstat (limited to 'net/mac80211/rx.c')
| -rw-r--r-- | net/mac80211/rx.c | 56 |
1 files changed, 46 insertions, 10 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 73cf126cef4..b729c005a2b 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -149,7 +149,17 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, pos++; /* IEEE80211_RADIOTAP_RATE */ - *pos = rate->bitrate / 5; + if (status->flag & RX_FLAG_HT) { + /* + * TODO: add following information into radiotap header once + * suitable fields are defined for it: + * - MCS index (status->rate_idx) + * - HT40 (status->flag & RX_FLAG_40MHZ) + * - short-GI (status->flag & RX_FLAG_SHORT_GI) + */ + *pos = 0; + } else + *pos = rate->bitrate / 5; pos++; /* IEEE80211_RADIOTAP_CHANNEL */ @@ -1849,9 +1859,15 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata, if (!(sdata->dev->flags & IFF_PROMISC)) return 0; rx->flags &= ~IEEE80211_RX_RA_MATCH; - } else if (!rx->sta) + } else if (!rx->sta) { + int rate_idx; + if (rx->status->flag & RX_FLAG_HT) + rate_idx = 0; /* TODO: HT rates */ + else + rate_idx = rx->status->rate_idx; rx->sta = ieee80211_ibss_add_sta(sdata, bssid, hdr->addr2, - BIT(rx->status->rate_idx)); + BIT(rate_idx)); + } break; case NL80211_IFTYPE_MESH_POINT: if (!multicast && @@ -2057,7 +2073,13 @@ static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw, tid_agg_rx->reorder_buf[index]->cb, sizeof(status)); sband = local->hw.wiphy->bands[status.band]; - rate = &sband->bitrates[status.rate_idx]; + if (status.flag & RX_FLAG_HT) { + /* TODO: HT rates */ + rate = sband->bitrates; + } else { + rate = &sband->bitrates + [status.rate_idx]; + } __ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index], &status, rate); @@ -2101,7 +2123,10 @@ static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw, memcpy(&status, tid_agg_rx->reorder_buf[index]->cb, sizeof(status)); sband = local->hw.wiphy->bands[status.band]; - rate = &sband->bitrates[status.rate_idx]; + if (status.flag & RX_FLAG_HT) + rate = sband->bitrates; /* TODO: HT rates */ + else + rate = &sband->bitrates[status.rate_idx]; __ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index], &status, rate); tid_agg_rx->stored_mpdu_num--; @@ -2189,15 +2214,26 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, } sband = local->hw.wiphy->bands[status->band]; - - if (!sband || - status->rate_idx < 0 || - status->rate_idx >= sband->n_bitrates) { + if (!sband) { WARN_ON(1); return; } - rate = &sband->bitrates[status->rate_idx]; + if (status->flag & RX_FLAG_HT) { + /* rate_idx is MCS index */ + if (WARN_ON(status->rate_idx < 0 || + status->rate_idx >= 76)) + return; + /* HT rates are not in the table - use the highest legacy rate + * for now since other parts of mac80211 may not yet be fully + * MCS aware. */ + rate = &sband->bitrates[sband->n_bitrates - 1]; + } else { + if (WARN_ON(status->rate_idx < 0 || + status->rate_idx >= sband->n_bitrates)) + return; + rate = &sband->bitrates[status->rate_idx]; + } /* * key references and virtual interfaces are protected using RCU |