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authorJohannes Berg <johannes.berg@intel.com>2012-11-09 15:07:02 +0100
committerJohannes Berg <johannes.berg@intel.com>2012-11-26 12:42:59 +0100
commit5614618ec498320e3b686fea246e50b833865c34 (patch)
treea319fd5575bc7ee090136e6e7829200a152886cf /net/mac80211/rx.c
parentdb9c64cf8d9d3fcbc34b09d037f266d1fc9f928c (diff)
mac80211: support drivers reporting VHT RX
Add support to mac80211 for having drivers report received VHT MCS information. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/rx.c')
-rw-r--r--net/mac80211/rx.c20
1 files changed, 15 insertions, 5 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index b2ae2baefc9a..825f33cf7bbc 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -193,7 +193,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
pos++;
/* IEEE80211_RADIOTAP_RATE */
- if (!rate || status->flag & RX_FLAG_HT) {
+ if (!rate || status->flag & (RX_FLAG_HT | RX_FLAG_VHT)) {
/*
* Without rate information don't add it. If we have,
* MCS information is a separate field in radiotap,
@@ -213,7 +213,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
if (status->band == IEEE80211_BAND_5GHZ)
put_unaligned_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ,
pos);
- else if (status->flag & RX_FLAG_HT)
+ else if (status->flag & (RX_FLAG_HT | RX_FLAG_VHT))
put_unaligned_le16(IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ,
pos);
else if (rate && rate->flags & IEEE80211_RATE_ERP_G)
@@ -1356,6 +1356,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
if (ieee80211_is_data(hdr->frame_control)) {
sta->last_rx_rate_idx = status->rate_idx;
sta->last_rx_rate_flag = status->flag;
+ sta->last_rx_rate_vht_nss = status->vht_nss;
}
}
} else if (!is_multicast_ether_addr(hdr->addr1)) {
@@ -1367,6 +1368,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
if (ieee80211_is_data(hdr->frame_control)) {
sta->last_rx_rate_idx = status->rate_idx;
sta->last_rx_rate_flag = status->flag;
+ sta->last_rx_rate_vht_nss = status->vht_nss;
}
}
@@ -2710,7 +2712,8 @@ static void ieee80211_rx_handlers_result(struct ieee80211_rx_data *rx,
status = IEEE80211_SKB_RXCB((rx->skb));
sband = rx->local->hw.wiphy->bands[status->band];
- if (!(status->flag & RX_FLAG_HT))
+ if (!(status->flag & RX_FLAG_HT) &&
+ !(status->flag & RX_FLAG_VHT))
rate = &sband->bitrates[status->rate_idx];
ieee80211_rx_cooked_monitor(rx, rate);
@@ -2877,8 +2880,8 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
} else if (!rx->sta) {
int rate_idx;
- if (status->flag & RX_FLAG_HT)
- rate_idx = 0; /* TODO: HT rates */
+ if (status->flag & (RX_FLAG_HT | RX_FLAG_VHT))
+ rate_idx = 0; /* TODO: HT/VHT rates */
else
rate_idx = status->rate_idx;
ieee80211_ibss_rx_no_sta(sdata, bssid, hdr->addr2,
@@ -3154,6 +3157,13 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb)
status->rate_idx,
status->rate_idx))
goto drop;
+ } else if (status->flag & RX_FLAG_VHT) {
+ if (WARN_ONCE(status->rate_idx > 9 ||
+ !status->vht_nss ||
+ status->vht_nss > 8,
+ "Rate marked as a VHT rate but data is invalid: MCS: %d, NSS: %d\n",
+ status->rate_idx, status->vht_nss))
+ goto drop;
} else {
if (WARN_ON(status->rate_idx >= sband->n_bitrates))
goto drop;