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authorEmmanuel Grumbach <emmanuel.grumbach@intel.com>2014-02-05 11:48:53 +0100
committerJohannes Berg <johannes.berg@intel.com>2014-02-06 09:34:58 +0100
commit63c361f5114d81db789f8f5671c76c228c35b021 (patch)
treef1304b5a7bc415d40e5da8ab4732b407dc8bec9d /net/mac80211
parentmac80211: move VHT related RX_FLAG to another variable (diff)
downloadlinux-63c361f5114d81db789f8f5671c76c228c35b021.tar.xz
linux-63c361f5114d81db789f8f5671c76c228c35b021.zip
mac80211: propagate STBC / LDPC flags to radiotap
This capabilities weren't propagated to the radiotap header. We don't set here the VHT_KNOWN / MCS_HAVE flag because not all the low level drivers will know how to properly flag the frames, hence the low level driver will be in charge of setting IEEE80211_RADIOTAP_MCS_HAVE_FEC, IEEE80211_RADIOTAP_MCS_HAVE_STBC and / or IEEE80211_RADIOTAP_VHT_KNOWN_STBC according to its capabilities. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/rx.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index e81cab3ca157..593062109c50 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -279,6 +279,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
*pos |= IEEE80211_RADIOTAP_MCS_BW_40;
if (status->flag & RX_FLAG_HT_GF)
*pos |= IEEE80211_RADIOTAP_MCS_FMT_GF;
+ if (status->flag & RX_FLAG_LDPC)
+ *pos |= IEEE80211_RADIOTAP_MCS_FEC_LDPC;
stbc = (status->flag & RX_FLAG_STBC_MASK) >> RX_FLAG_STBC_SHIFT;
*pos |= stbc << IEEE80211_RADIOTAP_MCS_STBC_SHIFT;
pos++;
@@ -328,6 +330,9 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
/* flags */
if (status->flag & RX_FLAG_SHORT_GI)
*pos |= IEEE80211_RADIOTAP_VHT_FLAG_SGI;
+ /* in VHT, STBC is binary */
+ if (status->flag & RX_FLAG_STBC_MASK)
+ *pos |= IEEE80211_RADIOTAP_VHT_FLAG_STBC;
pos++;
/* bandwidth */
if (status->vht_flag & RX_VHT_FLAG_80MHZ)
@@ -344,6 +349,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
*pos = (status->rate_idx << 4) | status->vht_nss;
pos += 4;
/* coding field */
+ if (status->flag & RX_FLAG_LDPC)
+ *pos |= IEEE80211_RADIOTAP_CODING_LDPC_USER0;
pos++;
/* group ID */
pos++;