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authorJohannes Berg <johannes.berg@intel.com>2015-01-15 16:14:02 +0100
committerJohannes Berg <johannes.berg@intel.com>2015-01-15 22:41:32 +0100
commitb51f3beecfbbfc946749a91fb444cb8917cf444f (patch)
tree68ecd024ca26b392b48599dc3725e4416d053d1f /net/mac80211
parent97d910d0aaa619ca530d08e2b1125b8014ccb030 (diff)
cfg80211: change bandwidth reporting to explicit field
For some reason, we made the bandwidth separate flags, which is rather confusing - a single rate cannot have different bandwidths at the same time. Change this to no longer be flags but use a separate field for the bandwidth ('bw') instead. While at it, add support for 5 and 10 MHz rates - these are reported as regular legacy rates with their real bitrate, but tagged as 5/10 now to make it easier to distinguish them. In the nl80211 API, the flags are preserved, but the code now can also clearly only set a single one of the flags. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/cfg.c31
-rw-r--r--net/mac80211/util.c25
2 files changed, 37 insertions, 19 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 6d5076fbf87a..ff090ef1ea2c 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -428,11 +428,13 @@ void sta_set_rate_info_tx(struct sta_info *sta,
rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
}
if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
- rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
- if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
- rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
- if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
- rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
+ rinfo->bw = RATE_INFO_BW_40;
+ else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
+ rinfo->bw = RATE_INFO_BW_80;
+ else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
+ rinfo->bw = RATE_INFO_BW_160;
+ else
+ rinfo->bw = RATE_INFO_BW_20;
if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
}
@@ -459,14 +461,21 @@ void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
}
- if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
- rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
- if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ)
- rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
- if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ)
- rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
+
+ if (sta->last_rx_rate_flag & RX_FLAG_5MHZ)
+ rinfo->bw = RATE_INFO_BW_5;
+ else if (sta->last_rx_rate_flag & RX_FLAG_10MHZ)
+ rinfo->bw = RATE_INFO_BW_10;
+ else if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
+ rinfo->bw = RATE_INFO_BW_40;
+ else if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ)
+ rinfo->bw = RATE_INFO_BW_80;
+ else if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ)
+ rinfo->bw = RATE_INFO_BW_160;
+ else
+ rinfo->bw = RATE_INFO_BW_20;
}
static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index db7216124736..fbd37d43dfce 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -2541,7 +2541,9 @@ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
ri.mcs = status->rate_idx;
ri.flags |= RATE_INFO_FLAGS_MCS;
if (status->flag & RX_FLAG_40MHZ)
- ri.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
+ ri.bw = RATE_INFO_BW_40;
+ else
+ ri.bw = RATE_INFO_BW_20;
if (status->flag & RX_FLAG_SHORT_GI)
ri.flags |= RATE_INFO_FLAGS_SHORT_GI;
} else if (status->flag & RX_FLAG_VHT) {
@@ -2549,11 +2551,13 @@ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
ri.mcs = status->rate_idx;
ri.nss = status->vht_nss;
if (status->flag & RX_FLAG_40MHZ)
- ri.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
- if (status->vht_flag & RX_VHT_FLAG_80MHZ)
- ri.flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
- if (status->vht_flag & RX_VHT_FLAG_160MHZ)
- ri.flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
+ ri.bw = RATE_INFO_BW_40;
+ else if (status->vht_flag & RX_VHT_FLAG_80MHZ)
+ ri.bw = RATE_INFO_BW_80;
+ else if (status->vht_flag & RX_VHT_FLAG_160MHZ)
+ ri.bw = RATE_INFO_BW_160;
+ else
+ ri.bw = RATE_INFO_BW_20;
if (status->flag & RX_FLAG_SHORT_GI)
ri.flags |= RATE_INFO_FLAGS_SHORT_GI;
} else {
@@ -2561,10 +2565,15 @@ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
int shift = 0;
int bitrate;
- if (status->flag & RX_FLAG_10MHZ)
+ if (status->flag & RX_FLAG_10MHZ) {
shift = 1;
- if (status->flag & RX_FLAG_5MHZ)
+ ri.bw = RATE_INFO_BW_10;
+ } else if (status->flag & RX_FLAG_5MHZ) {
shift = 2;
+ ri.bw = RATE_INFO_BW_5;
+ } else {
+ ri.bw = RATE_INFO_BW_20;
+ }
sband = local->hw.wiphy->bands[status->band];
bitrate = sband->bitrates[status->rate_idx].bitrate;