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mac80211: support (partial) VHT radiotap information

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Add some information that we have about VHT to radiotap.
This at least lets one see the MCS and NSS information.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2012-11-22 23:00:18 +01:00
parent f2d9d270c1
commit 5164892184
4 changed files with 71 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
include/net/ieee80211_radiotap.h
View File

@@ -186,6 +186,10 @@ struct ieee80211_radiotap_header {
* IEEE80211_RADIOTAP_AMPDU_STATUS u32, u16, u8, u8 unitless
*
* Contains the AMPDU information for the subframe.
*
* IEEE80211_RADIOTAP_VHT u16, u8, u8, u8[4], u8, u8, u16
*
* Contains VHT information about this frame.
*/
enum ieee80211_radiotap_type {
IEEE80211_RADIOTAP_TSFT = 0,
@@ -209,6 +213,7 @@ enum ieee80211_radiotap_type {
IEEE80211_RADIOTAP_MCS = 19,
IEEE80211_RADIOTAP_AMPDU_STATUS = 20,
IEEE80211_RADIOTAP_VHT = 21,
/* valid in every it_present bitmap, even vendor namespaces */
IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE = 29,
@@ -282,6 +287,25 @@ enum ieee80211_radiotap_type {
#define IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_ERR 0x0010
#define IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_KNOWN 0x0020
/* For IEEE80211_RADIOTAP_VHT */
#define IEEE80211_RADIOTAP_VHT_KNOWN_STBC 0x0001
#define IEEE80211_RADIOTAP_VHT_KNOWN_TXOP_PS_NA 0x0002
#define IEEE80211_RADIOTAP_VHT_KNOWN_GI 0x0004
#define IEEE80211_RADIOTAP_VHT_KNOWN_SGI_NSYM_DIS 0x0008
#define IEEE80211_RADIOTAP_VHT_KNOWN_LDPC_EXTRA_OFDM_SYM 0x0010
#define IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED 0x0020
#define IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH 0x0040
#define IEEE80211_RADIOTAP_VHT_KNOWN_GROUP_ID 0x0080
#define IEEE80211_RADIOTAP_VHT_KNOWN_PARTIAL_AID 0x0100
#define IEEE80211_RADIOTAP_VHT_FLAG_STBC 0x01
#define IEEE80211_RADIOTAP_VHT_FLAG_TXOP_PS_NA 0x02
#define IEEE80211_RADIOTAP_VHT_FLAG_SGI 0x04
#define IEEE80211_RADIOTAP_VHT_FLAG_SGI_NSYM_M10_9 0x08
#define IEEE80211_RADIOTAP_VHT_FLAG_LDPC_EXTRA_OFDM_SYM 0x10
#define IEEE80211_RADIOTAP_VHT_FLAG_BEAMFORMED 0x20
/* helpers */
static inline int ieee80211_get_radiotap_len(unsigned char *data)
{

5
include/net/mac80211.h
View File

@@ -1473,6 +1473,10 @@ enum ieee80211_hw_flags {
* include _FMT. Use %IEEE80211_RADIOTAP_MCS_HAVE_* values, only
* adding _BW is supported today.
*
* @radiotap_vht_details: lists which VHT MCS information the HW reports,
* the default is _GI | _BANDWIDTH.
* Use the %IEEE80211_RADIOTAP_VHT_KNOWN_* values.
*
* @netdev_features: netdev features to be set in each netdev created
* from this HW. Note only HW checksum features are currently
* compatible with mac80211. Other feature bits will be rejected.
@@ -1499,6 +1503,7 @@ struct ieee80211_hw {
u8 max_tx_aggregation_subframes;
u8 offchannel_tx_hw_queue;
u8 radiotap_mcs_details;
u16 radiotap_vht_details;
netdev_features_t netdev_features;
};