nl80211 change to push hw VHT caps and new structs, ieee defines per Draft 2.1 AC spec.
Signed-off-by: Mahesh Palivela <maheshp@xxxxxxxxxxx>
Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
---
include/linux/ieee80211.h | 49 +++++++++++++++++++++++++++++++++++++++++++++
include/linux/nl80211.h | 6 +++++
include/net/cfg80211.h | 17 +++++++++++++++
net/wireless/nl80211.c | 9 ++++++++
4 files changed, 81 insertions(+), 0 deletions(-)
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index ce9af89..758cf78 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1072,6 +1072,55 @@ struct ieee80211_ht_operation {
#define WLAN_HT_SMPS_CONTROL_STATIC 1
#define WLAN_HT_SMPS_CONTROL_DYNAMIC 3
+
+/**
+ * struct ieee80211_vht_mcs_info - VHT MCS information
+ * @rx_mask: RX mask
+ * @rx_highest: highest supported RX rate. If set represents
+ * the highest supported RX data rate in units of 1 Mbps.
+ * If this field is 0 this value should not be used to
+ * consider the highest RX data rate supported.
+ * @tx_params: TX parameters
+ */
+struct ieee80211_vht_mcs_info {
+ __le16 rx_mcs_map;
+ __le16 rx_highest;
+ __le16 tx_mcs_map;
+ __le16 tx_highest;
+} __attribute__((packed));
+
+#define IEEE80211_VHT_MCS_ZERO_TO_SEVEN_SUPPORT 0
+#define IEEE80211_VHT_MCS_ZERO_TO_EIGHT_SUPPORT 1
+#define IEEE80211_VHT_MCS_ZERO_TO_NINE_SUPPORT 2
+#define IEEE80211_VHT_MCS_NOT_SUPPORTED 3
+
+/* 802.11ac VHT Capabilities */
+#define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 0x00000001
+#define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 0x00000002
+#define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ 0x00000004
+#define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ 0x00000008
+#define IEEE80211_VHT_CAP_RXLDPC 0x00000010
+#define IEEE80211_VHT_CAP_SHORT_GI_80 0x00000020
+#define IEEE80211_VHT_CAP_SHORT_GI_160 0x00000040
+#define IEEE80211_VHT_CAP_TXSTBC 0x00000080
+#define IEEE80211_VHT_CAP_RXSTBC_1 0x00000100
+#define IEEE80211_VHT_CAP_RXSTBC_2 0x00000200
+#define IEEE80211_VHT_CAP_RXSTBC_3 0x00000300
+#define IEEE80211_VHT_CAP_RXSTBC_4 0x00000400
+#define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE 0x00000800
+#define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE 0x00001000
+#define IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX 0x00006000
+#define IEEE80211_VHT_CAP_SOUNDING_DIMENTION_MAX 0x00030000
+#define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE 0x00080000
+#define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE 0x00100000
+#define IEEE80211_VHT_CAP_VHT_TXOP_PS 0x00200000
+#define IEEE80211_VHT_CAP_HTC_VHT 0x00400000
+#define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT 0x00800000
+#define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB 0x08000000
+#define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB 0x0c000000
+#define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN 0x10000000
+#define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN 0x20000000
+
/* Authentication algorithms */
#define WLAN_AUTH_OPEN 0
#define WLAN_AUTH_SHARED_KEY 1
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index a6959f7..ac17bfc 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -1788,6 +1788,9 @@ enum nl80211_mpath_info {
* @NL80211_BAND_ATTR_HT_CAPA: HT capabilities, as in the HT information IE
* @NL80211_BAND_ATTR_HT_AMPDU_FACTOR: A-MPDU factor, as in 11n
* @NL80211_BAND_ATTR_HT_AMPDU_DENSITY: A-MPDU density, as in 11n
+ * @NL80211_BAND_ATTR_VHT_MCS_SET: 32-byte attribute containing the MCS set as
+ * defined in 802.11ac
+ * @NL80211_BAND_ATTR_VHT_CAPA: VHT capabilities, as in the HT information IE
* @NL80211_BAND_ATTR_MAX: highest band attribute currently defined
* @__NL80211_BAND_ATTR_AFTER_LAST: internal use
*/
@@ -1801,6 +1804,9 @@ enum nl80211_band_attr {
NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
+ NL80211_BAND_ATTR_VHT_MCS_SET,
+ NL80211_BAND_ATTR_VHT_CAPA,
+
/* keep last */
__NL80211_BAND_ATTR_AFTER_LAST,
NL80211_BAND_ATTR_MAX = __NL80211_BAND_ATTR_AFTER_LAST - 1
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 0289d4c..2af16e2 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -211,6 +211,22 @@ struct ieee80211_sta_ht_cap {
};
/**
+ * struct ieee80211_sta_vht_cap - STA's VHT capabilities
+ *
+ * This structure describes most essential parameters needed
+ * to describe 802.11ac VHT capabilities for an STA.
+ *
+ * @vht_supported: is VHT supported by the STA
+ * @cap: VHT capabilities map as described in 802.11ac spec
+ * @vht_mcs: Supported VHT MCS rates
+ */
+struct ieee80211_sta_vht_cap {
+ bool vht_supported;
+ u32 cap; /* use IEEE80211_VHT_CAP_ */
+ struct ieee80211_vht_mcs_info vht_mcs;
+};
+
+/**
* struct ieee80211_supported_band - frequency band definition
*
* This structure describes a frequency band a wiphy
@@ -233,6 +249,7 @@ struct ieee80211_supported_band {
int n_channels;
int n_bitrates;
struct ieee80211_sta_ht_cap ht_cap;
+ struct ieee80211_sta_vht_cap vht_cap;
};
/*
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 206465d..0e2e64d 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -832,6 +832,15 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
dev->wiphy.bands[band]->ht_cap.ampdu_density)))
goto nla_put_failure;
+ /* add VHT info */
+ if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
+ (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
+ sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
+ &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
+ nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
+ dev->wiphy.bands[band]->vht_cap.cap)))
+ goto nla_put_failure;
+
/* add frequencies */
nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
if (!nl_freqs)
--
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