cfg80211: Add support for HE

Add support for the HE in cfg80211 and also add userspace API to
nl80211 to send rate information out, conforming with P802.11ax_D2.0.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>

include/linux/ieee80211.h

@@ -1539,6 +1539,106 @@ struct ieee80211_vht_operation {
 	__le16 basic_mcs_set;
 } __packed;
 
+/**
+ * struct ieee80211_he_cap_elem - HE capabilities element
+ *
+ * This structure is the "HE capabilities element" fixed fields as
+ * described in P802.11ax_D2.0 section 9.4.2.237.2 and 9.4.2.237.3
+ */
+struct ieee80211_he_cap_elem {
+	u8 mac_cap_info[5];
+	u8 phy_cap_info[9];
+} __packed;
+
+#define IEEE80211_TX_RX_MCS_NSS_DESC_MAX_LEN	5
+
+/**
+ * enum ieee80211_he_mcs_support - HE MCS support definitions
+ * @IEEE80211_HE_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
+ *	number of streams
+ * @IEEE80211_HE_MCS_SUPPORT_0_9: MCSes 0-9 are supported
+ * @IEEE80211_HE_MCS_SUPPORT_0_11: MCSes 0-11 are supported
+ * @IEEE80211_HE_MCS_NOT_SUPPORTED: This number of streams isn't supported
+ *
+ * These definitions are used in each 2-bit subfield of the rx_mcs_*
+ * and tx_mcs_* fields of &struct ieee80211_he_mcs_nss_supp, which are
+ * both split into 8 subfields by number of streams. These values indicate
+ * which MCSes are supported for the number of streams the value appears
+ * for.
+ */
+enum ieee80211_he_mcs_support {
+	IEEE80211_HE_MCS_SUPPORT_0_7	= 0,
+	IEEE80211_HE_MCS_SUPPORT_0_9	= 1,
+	IEEE80211_HE_MCS_SUPPORT_0_11	= 2,
+	IEEE80211_HE_MCS_NOT_SUPPORTED	= 3,
+};
+
+/**
+ * struct ieee80211_he_mcs_nss_supp - HE Tx/Rx HE MCS NSS Support Field
+ *
+ * This structure holds the data required for the Tx/Rx HE MCS NSS Support Field
+ * described in P802.11ax_D2.0 section 9.4.2.237.4
+ *
+ * @rx_mcs_80: Rx MCS map 2 bits for each stream, total 8 streams, for channel
+ *     widths less than 80MHz.
+ * @tx_mcs_80: Tx MCS map 2 bits for each stream, total 8 streams, for channel
+ *     widths less than 80MHz.
+ * @rx_mcs_160: Rx MCS map 2 bits for each stream, total 8 streams, for channel
+ *     width 160MHz.
+ * @tx_mcs_160: Tx MCS map 2 bits for each stream, total 8 streams, for channel
+ *     width 160MHz.
+ * @rx_mcs_80p80: Rx MCS map 2 bits for each stream, total 8 streams, for
+ *     channel width 80p80MHz.
+ * @tx_mcs_80p80: Tx MCS map 2 bits for each stream, total 8 streams, for
+ *     channel width 80p80MHz.
+ */
+struct ieee80211_he_mcs_nss_supp {
+	__le16 rx_mcs_80;
+	__le16 tx_mcs_80;
+	__le16 rx_mcs_160;
+	__le16 tx_mcs_160;
+	__le16 rx_mcs_80p80;
+	__le16 tx_mcs_80p80;
+} __packed;
+
+/**
+ * struct ieee80211_he_operation - HE capabilities element
+ *
+ * This structure is the "HE operation element" fields as
+ * described in P802.11ax_D2.0 section 9.4.2.238
+ */
+struct ieee80211_he_operation {
+	__le32 he_oper_params;
+	__le16 he_mcs_nss_set;
+	/* Optional 0,1,3 or 4 bytes: depends on @he_oper_params */
+	u8 optional[0];
+} __packed;
+
+/**
+ * struct ieee80211_he_mu_edca_param_ac_rec - MU AC Parameter Record field
+ *
+ * This structure is the "MU AC Parameter Record" fields as
+ * described in P802.11ax_D2.0 section 9.4.2.240
+ */
+struct ieee80211_he_mu_edca_param_ac_rec {
+	u8 aifsn;
+	u8 ecw_min_max;
+	u8 mu_edca_timer;
+} __packed;
+
+/**
+ * struct ieee80211_mu_edca_param_set - MU EDCA Parameter Set element
+ *
+ * This structure is the "MU EDCA Parameter Set element" fields as
+ * described in P802.11ax_D2.0 section 9.4.2.240
+ */
+struct ieee80211_mu_edca_param_set {
+	u8 mu_qos_info;
+	struct ieee80211_he_mu_edca_param_ac_rec ac_be;
+	struct ieee80211_he_mu_edca_param_ac_rec ac_bk;
+	struct ieee80211_he_mu_edca_param_ac_rec ac_vi;
+	struct ieee80211_he_mu_edca_param_ac_rec ac_vo;
+} __packed;
 
 /* 802.11ac VHT Capabilities */
 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895			0x00000000
@@ -1577,6 +1677,328 @@ struct ieee80211_vht_operation {
 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN			0x10000000
 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN			0x20000000
 
+/* 802.11ax HE MAC capabilities */
+#define IEEE80211_HE_MAC_CAP0_HTC_HE				0x01
+#define IEEE80211_HE_MAC_CAP0_TWT_REQ				0x02
+#define IEEE80211_HE_MAC_CAP0_TWT_RES				0x04
+#define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_NOT_SUPP		0x00
+#define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_1		0x08
+#define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_2		0x10
+#define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_3		0x18
+#define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_MASK			0x18
+#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_1		0x00
+#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_2		0x20
+#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_4		0x40
+#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_8		0x60
+#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_16		0x80
+#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_32		0xa0
+#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_64		0xc0
+#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_UNLIMITED	0xe0
+#define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_MASK		0xe0
+
+#define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_UNLIMITED		0x00
+#define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_128			0x01
+#define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_256			0x02
+#define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_512			0x03
+#define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_MASK		0x03
+#define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_0US		0x00
+#define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_8US		0x04
+#define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US		0x08
+#define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_MASK		0x0c
+#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_1		0x00
+#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_2		0x10
+#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_3		0x20
+#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_4		0x30
+#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_5		0x40
+#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_6		0x50
+#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_7		0x60
+#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_8		0x70
+#define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_MASK		0x70
+
+/* Link adaptation is split between byte HE_MAC_CAP1 and
+ * HE_MAC_CAP2. It should be set only if IEEE80211_HE_MAC_CAP0_HTC_HE
+ * in which case the following values apply:
+ * 0 = No feedback.
+ * 1 = reserved.
+ * 2 = Unsolicited feedback.
+ * 3 = both
+ */
+#define IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION			0x80
+
+#define IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION			0x01
+#define IEEE80211_HE_MAC_CAP2_ALL_ACK				0x02
+#define IEEE80211_HE_MAC_CAP2_UL_MU_RESP_SCHED			0x04
+#define IEEE80211_HE_MAC_CAP2_BSR				0x08
+#define IEEE80211_HE_MAC_CAP2_BCAST_TWT				0x10
+#define IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP			0x20
+#define IEEE80211_HE_MAC_CAP2_MU_CASCADING			0x40
+#define IEEE80211_HE_MAC_CAP2_ACK_EN				0x80
+
+#define IEEE80211_HE_MAC_CAP3_GRP_ADDR_MULTI_STA_BA_DL_MU	0x01
+#define IEEE80211_HE_MAC_CAP3_OMI_CONTROL			0x02
+#define IEEE80211_HE_MAC_CAP3_OFDMA_RA				0x04
+
+/* The maximum length of an A-MDPU is defined by the combination of the Maximum
+ * A-MDPU Length Exponent field in the HT capabilities, VHT capabilities and the
+ * same field in the HE capabilities.
+ */
+#define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_USE_VHT	0x00
+#define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_VHT_1		0x08
+#define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_VHT_2		0x10
+#define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_RESERVED	0x18
+#define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_MASK		0x18
+#define IEEE80211_HE_MAC_CAP3_A_AMSDU_FRAG			0x20
+#define IEEE80211_HE_MAC_CAP3_FLEX_TWT_SCHED			0x40
+#define IEEE80211_HE_MAC_CAP3_RX_CTRL_FRAME_TO_MULTIBSS		0x80
+
+#define IEEE80211_HE_MAC_CAP4_BSRP_BQRP_A_MPDU_AGG		0x01
+#define IEEE80211_HE_MAC_CAP4_QTP				0x02
+#define IEEE80211_HE_MAC_CAP4_BQR				0x04
+#define IEEE80211_HE_MAC_CAP4_SR_RESP				0x08
+#define IEEE80211_HE_MAC_CAP4_NDP_FB_REP			0x10
+#define IEEE80211_HE_MAC_CAP4_OPS				0x20
+#define IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU			0x40
+
+/* 802.11ax HE PHY capabilities */
+#define IEEE80211_HE_PHY_CAP0_DUAL_BAND					0x01
+#define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G		0x02
+#define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G	0x04
+#define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G		0x08
+#define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G	0x10
+#define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G	0x20
+#define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G	0x40
+#define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK			0xfe
+
+#define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ	0x01
+#define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ	0x02
+#define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ	0x04
+#define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ	0x08
+#define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK			0x0f
+#define IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A				0x10
+#define IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD			0x20
+#define IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US		0x40
+/* Midamble RX Max NSTS is split between byte #2 and byte #3 */
+#define IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_MAX_NSTS			0x80
+
+#define IEEE80211_HE_PHY_CAP2_MIDAMBLE_RX_MAX_NSTS			0x01
+#define IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US			0x02
+#define IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ			0x04
+#define IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ			0x08
+#define IEEE80211_HE_PHY_CAP2_DOPPLER_TX				0x10
+#define IEEE80211_HE_PHY_CAP2_DOPPLER_RX				0x20
+
+/* Note that the meaning of UL MU below is different between an AP and a non-AP
+ * sta, where in the AP case it indicates support for Rx and in the non-AP sta
+ * case it indicates support for Tx.
+ */
+#define IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO			0x40
+#define IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO			0x80
+
+#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM			0x00
+#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK			0x01
+#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK			0x02
+#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM			0x03
+#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK			0x03
+#define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_1				0x00
+#define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_2				0x04
+#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM			0x00
+#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK			0x08
+#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK			0x10
+#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM			0x18
+#define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK			0x18
+#define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_1				0x00
+#define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_2				0x20
+#define IEEE80211_HE_PHY_CAP3_RX_HE_MU_PPDU_FROM_NON_AP_STA		0x40
+#define IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER				0x80
+
+#define IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE				0x01
+#define IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER				0x02
+
+/* Minimal allowed value of Max STS under 80MHz is 3 */
+#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4		0x0c
+#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_5		0x10
+#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_6		0x14
+#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_7		0x18
+#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_8		0x1c
+#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_MASK	0x1c
+
+/* Minimal allowed value of Max STS above 80MHz is 3 */
+#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4		0x60
+#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_5		0x80
+#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_6		0xa0
+#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_7		0xc0
+#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_8		0xe0
+#define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_MASK	0xe0
+
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_1	0x00
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_2	0x01
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_3	0x02
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_4	0x03
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_5	0x04
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_6	0x05
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_7	0x06
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_8	0x07
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK	0x07
+
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_1	0x00
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_2	0x08
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_3	0x10
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_4	0x18
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_5	0x20
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_6	0x28
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_7	0x30
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_8	0x38
+#define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK	0x38
+
+#define IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK				0x40
+#define IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK				0x80
+
+#define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU			0x01
+#define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU			0x02
+#define IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMER_FB			0x04
+#define IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMER_FB			0x08
+#define IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB				0x10
+#define IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE			0x20
+#define IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO		0x40
+#define IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT			0x80
+
+#define IEEE80211_HE_PHY_CAP7_SRP_BASED_SR				0x01
+#define IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_AR			0x02
+#define IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI		0x04
+#define IEEE80211_HE_PHY_CAP7_MAX_NC_1					0x08
+#define IEEE80211_HE_PHY_CAP7_MAX_NC_2					0x10
+#define IEEE80211_HE_PHY_CAP7_MAX_NC_3					0x18
+#define IEEE80211_HE_PHY_CAP7_MAX_NC_4					0x20
+#define IEEE80211_HE_PHY_CAP7_MAX_NC_5					0x28
+#define IEEE80211_HE_PHY_CAP7_MAX_NC_6					0x30
+#define IEEE80211_HE_PHY_CAP7_MAX_NC_7					0x38
+#define IEEE80211_HE_PHY_CAP7_MAX_NC_MASK				0x38
+#define IEEE80211_HE_PHY_CAP7_STBC_TX_ABOVE_80MHZ			0x40
+#define IEEE80211_HE_PHY_CAP7_STBC_RX_ABOVE_80MHZ			0x80
+
+#define IEEE80211_HE_PHY_CAP8_HE_ER_SU_PPDU_4XLTF_AND_08_US_GI		0x01
+#define IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G		0x02
+#define IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU			0x04
+#define IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU			0x08
+#define IEEE80211_HE_PHY_CAP8_HE_ER_SU_1XLTF_AND_08_US_GI		0x10
+#define IEEE80211_HE_PHY_CAP8_MIDAMBLE_RX_2X_AND_1XLTF			0x20
+
+/* 802.11ax HE TX/RX MCS NSS Support  */
+#define IEEE80211_TX_RX_MCS_NSS_SUPP_HIGHEST_MCS_POS			(3)
+#define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_POS			(6)
+#define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_POS			(11)
+#define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_MASK			0x07c0
+#define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_MASK			0xf800
+
+/* TX/RX HE MCS Support field Highest MCS subfield encoding */
+enum ieee80211_he_highest_mcs_supported_subfield_enc {
+	HIGHEST_MCS_SUPPORTED_MCS7 = 0,
+	HIGHEST_MCS_SUPPORTED_MCS8,
+	HIGHEST_MCS_SUPPORTED_MCS9,
+	HIGHEST_MCS_SUPPORTED_MCS10,
+	HIGHEST_MCS_SUPPORTED_MCS11,
+};
+
+/* Calculate 802.11ax HE capabilities IE Tx/Rx HE MCS NSS Support Field size */
+static inline u8
+ieee80211_he_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap)
+{
+	u8 count = 4;
+
+	if (he_cap->phy_cap_info[0] &
+	    IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
+		count += 4;
+
+	if (he_cap->phy_cap_info[0] &
+	    IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G)
+		count += 4;
+
+	return count;
+}
+
+/* 802.11ax HE PPE Thresholds */
+#define IEEE80211_PPE_THRES_NSS_SUPPORT_2NSS			(1)
+#define IEEE80211_PPE_THRES_NSS_POS				(0)
+#define IEEE80211_PPE_THRES_NSS_MASK				(7)
+#define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_2x966_AND_966_RU	\
+	(BIT(5) | BIT(6))
+#define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK		0x78
+#define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS		(3)
+#define IEEE80211_PPE_THRES_INFO_PPET_SIZE			(3)
+
+/*
+ * Calculate 802.11ax HE capabilities IE PPE field size
+ * Input: Header byte of ppe_thres (first byte), and HE capa IE's PHY cap u8*
+ */
+static inline u8
+ieee80211_he_ppe_size(u8 ppe_thres_hdr, const u8 *phy_cap_info)
+{
+	u8 n;
+
+	if ((phy_cap_info[6] &
+	     IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0)
+		return 0;
+
+	n = hweight8(ppe_thres_hdr &
+		     IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
+	n *= (1 + ((ppe_thres_hdr & IEEE80211_PPE_THRES_NSS_MASK) >>
+		   IEEE80211_PPE_THRES_NSS_POS));
+
+	/*
+	 * Each pair is 6 bits, and we need to add the 7 "header" bits to the
+	 * total size.
+	 */
+	n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7;
+	n = DIV_ROUND_UP(n, 8);
+
+	return n;
+}
+
+/* HE Operation defines */
+#define IEEE80211_HE_OPERATION_BSS_COLOR_MASK			0x0000003f
+#define IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK		0x000001c0
+#define IEEE80211_HE_OPERATION_DFLT_PE_DURATION_OFFSET		6
+#define IEEE80211_HE_OPERATION_TWT_REQUIRED			0x00000200
+#define IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK		0x000ffc00
+#define IEEE80211_HE_OPERATION_RTS_THRESHOLD_OFFSET		10
+#define IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR		0x000100000
+#define IEEE80211_HE_OPERATION_VHT_OPER_INFO			0x000200000
+#define IEEE80211_HE_OPERATION_MULTI_BSSID_AP			0x10000000
+#define IEEE80211_HE_OPERATION_TX_BSSID_INDICATOR		0x20000000
+#define IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED		0x40000000
+
+/*
+ * ieee80211_he_oper_size - calculate 802.11ax HE Operations IE size
+ * @he_oper_ie: byte data of the He Operations IE, stating from the the byte
+ *	after the ext ID byte. It is assumed that he_oper_ie has at least
+ *	sizeof(struct ieee80211_he_operation) bytes, checked already in
+ *	ieee802_11_parse_elems_crc()
+ * @return the actual size of the IE data (not including header), or 0 on error
+ */
+static inline u8
+ieee80211_he_oper_size(const u8 *he_oper_ie)
+{
+	struct ieee80211_he_operation *he_oper = (void *)he_oper_ie;
+	u8 oper_len = sizeof(struct ieee80211_he_operation);
+	u32 he_oper_params;
+
+	/* Make sure the input is not NULL */
+	if (!he_oper_ie)
+		return 0;
+
+	/* Calc required length */
+	he_oper_params = le32_to_cpu(he_oper->he_oper_params);
+	if (he_oper_params & IEEE80211_HE_OPERATION_VHT_OPER_INFO)
+		oper_len += 3;
+	if (he_oper_params & IEEE80211_HE_OPERATION_MULTI_BSSID_AP)
+		oper_len++;
+
+	/* Add the first byte (extension ID) to the total length */
+	oper_len++;
+
+	return oper_len;
+}
+
 /* Authentication algorithms */
 #define WLAN_AUTH_OPEN 0
 #define WLAN_AUTH_SHARED_KEY 1
@@ -1992,6 +2414,11 @@ enum ieee80211_eid_ext {
 	WLAN_EID_EXT_FILS_WRAPPED_DATA = 8,
 	WLAN_EID_EXT_FILS_PUBLIC_KEY = 12,
 	WLAN_EID_EXT_FILS_NONCE = 13,
+	WLAN_EID_EXT_FUTURE_CHAN_GUIDANCE = 14,
+	WLAN_EID_EXT_HE_CAPABILITY = 35,
+	WLAN_EID_EXT_HE_OPERATION = 36,
+	WLAN_EID_EXT_UORA = 37,
+	WLAN_EID_EXT_HE_MU_EDCA = 38,
 };
 
 /* Action category code */

include/net/cfg80211.h

@@ -285,6 +285,41 @@ struct ieee80211_sta_vht_cap {
 	struct ieee80211_vht_mcs_info vht_mcs;
 };
 
+#define IEEE80211_HE_PPE_THRES_MAX_LEN		25
+
+/**
+ * struct ieee80211_sta_he_cap - STA's HE capabilities
+ *
+ * This structure describes most essential parameters needed
+ * to describe 802.11ax HE capabilities for a STA.
+ *
+ * @has_he: true iff HE data is valid.
+ * @he_cap_elem: Fixed portion of the HE capabilities element.
+ * @he_mcs_nss_supp: The supported NSS/MCS combinations.
+ * @ppe_thres: Holds the PPE Thresholds data.
+ */
+struct ieee80211_sta_he_cap {
+	bool has_he;
+	struct ieee80211_he_cap_elem he_cap_elem;
+	struct ieee80211_he_mcs_nss_supp he_mcs_nss_supp;
+	u8 ppe_thres[IEEE80211_HE_PPE_THRES_MAX_LEN];
+};
+
+/**
+ * struct ieee80211_sband_iftype_data
+ *
+ * This structure encapsulates sband data that is relevant for the
+ * interface types defined in @types_mask.  Each type in the
+ * @types_mask must be unique across all instances of iftype_data.
+ *
+ * @types_mask: interface types mask
+ * @he_cap: holds the HE capabilities
+ */
+struct ieee80211_sband_iftype_data {
+	u16 types_mask;
+	struct ieee80211_sta_he_cap he_cap;
+};
+
 /**
  * struct ieee80211_supported_band - frequency band definition
  *
@@ -301,6 +336,11 @@ struct ieee80211_sta_vht_cap {
  * @n_bitrates: Number of bitrates in @bitrates
  * @ht_cap: HT capabilities in this band
  * @vht_cap: VHT capabilities in this band
+ * @n_iftype_data: number of iftype data entries
+ * @iftype_data: interface type data entries.  Note that the bits in
+ *	@types_mask inside this structure cannot overlap (i.e. only
+ *	one occurrence of each type is allowed across all instances of
+ *	iftype_data).
  */
 struct ieee80211_supported_band {
 	struct ieee80211_channel *channels;
@@ -310,8 +350,55 @@ struct ieee80211_supported_band {
 	int n_bitrates;
 	struct ieee80211_sta_ht_cap ht_cap;
 	struct ieee80211_sta_vht_cap vht_cap;
+	u16 n_iftype_data;
+	const struct ieee80211_sband_iftype_data *iftype_data;
 };
 
+/**
+ * ieee80211_get_sband_iftype_data - return sband data for a given iftype
+ * @sband: the sband to search for the STA on
+ * @iftype: enum nl80211_iftype
+ *
+ * Return: pointer to struct ieee80211_sband_iftype_data, or NULL is none found
+ */
+static inline const struct ieee80211_sband_iftype_data *
+ieee80211_get_sband_iftype_data(const struct ieee80211_supported_band *sband,
+				u8 iftype)
+{
+	int i;
+
+	if (WARN_ON(iftype >= NL80211_IFTYPE_MAX))
+		return NULL;
+
+	for (i = 0; i < sband->n_iftype_data; i++)  {
+		const struct ieee80211_sband_iftype_data *data =
+			&sband->iftype_data[i];
+
+		if (data->types_mask & BIT(iftype))
+			return data;
+	}
+
+	return NULL;
+}
+
+/**
+ * ieee80211_get_he_sta_cap - return HE capabilities for an sband's STA
+ * @sband: the sband to search for the STA on
+ *
+ * Return: pointer to the struct ieee80211_sta_he_cap, or NULL is none found
+ */
+static inline const struct ieee80211_sta_he_cap *
+ieee80211_get_he_sta_cap(const struct ieee80211_supported_band *sband)
+{
+	const struct ieee80211_sband_iftype_data *data =
+		ieee80211_get_sband_iftype_data(sband, NL80211_IFTYPE_STATION);
+
+	if (data && data->he_cap.has_he)
+		return &data->he_cap;
+
+	return NULL;
+}
+
 /**
  * wiphy_read_of_freq_limits - read frequency limits from device tree
  *
@@ -899,6 +986,8 @@ enum station_parameters_apply_mask {
  * @opmode_notif: operating mode field from Operating Mode Notification
  * @opmode_notif_used: information if operating mode field is used
  * @support_p2p_ps: information if station supports P2P PS mechanism
+ * @he_capa: HE capabilities of station
+ * @he_capa_len: the length of the HE capabilities
  */
 struct station_parameters {
 	const u8 *supported_rates;
@@ -926,6 +1015,8 @@ struct station_parameters {
 	u8 opmode_notif;
 	bool opmode_notif_used;
 	int support_p2p_ps;
+	const struct ieee80211_he_cap_elem *he_capa;
+	u8 he_capa_len;
 };
 
 /**
@@ -1000,12 +1091,14 @@ int cfg80211_check_station_change(struct wiphy *wiphy,
  * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
  * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
  * @RATE_INFO_FLAGS_60G: 60GHz MCS
+ * @RATE_INFO_FLAGS_HE_MCS: HE MCS information
  */
 enum rate_info_flags {
 	RATE_INFO_FLAGS_MCS			= BIT(0),
 	RATE_INFO_FLAGS_VHT_MCS			= BIT(1),
 	RATE_INFO_FLAGS_SHORT_GI		= BIT(2),
 	RATE_INFO_FLAGS_60G			= BIT(3),
+	RATE_INFO_FLAGS_HE_MCS			= BIT(4),
 };
 
 /**
@@ -1019,6 +1112,7 @@ enum rate_info_flags {
  * @RATE_INFO_BW_40: 40 MHz bandwidth
  * @RATE_INFO_BW_80: 80 MHz bandwidth
  * @RATE_INFO_BW_160: 160 MHz bandwidth
+ * @RATE_INFO_BW_HE_RU: bandwidth determined by HE RU allocation
  */
 enum rate_info_bw {
 	RATE_INFO_BW_20 = 0,
@@ -1027,6 +1121,7 @@ enum rate_info_bw {
 	RATE_INFO_BW_40,
 	RATE_INFO_BW_80,
 	RATE_INFO_BW_160,
+	RATE_INFO_BW_HE_RU,
 };
 
 /**
@@ -1035,10 +1130,14 @@ enum rate_info_bw {
  * Information about a receiving or transmitting bitrate
  *
  * @flags: bitflag of flags from &enum rate_info_flags
- * @mcs: mcs index if struct describes a 802.11n bitrate
+ * @mcs: mcs index if struct describes an HT/VHT/HE rate
  * @legacy: bitrate in 100kbit/s for 802.11abg
- * @nss: number of streams (VHT only)
+ * @nss: number of streams (VHT & HE only)
  * @bw: bandwidth (from &enum rate_info_bw)
+ * @he_gi: HE guard interval (from &enum nl80211_he_gi)
+ * @he_dcm: HE DCM value
+ * @he_ru_alloc: HE RU allocation (from &enum nl80211_he_ru_alloc,
+ *	only valid if bw is %RATE_INFO_BW_HE_RU)
  */
 struct rate_info {
 	u8 flags;
@@ -1046,6 +1145,9 @@ struct rate_info {
 	u16 legacy;
 	u8 nss;
 	u8 bw;
+	u8 he_gi;
+	u8 he_dcm;
+	u8 he_ru_alloc;
 };
 
 /**

include/uapi/linux/nl80211.h

@@ -2237,6 +2237,9 @@ enum nl80211_commands {
  *      enforced.
  * @NL80211_ATTR_TXQ_QUANTUM: TXQ scheduler quantum (bytes). Number of bytes
  *      a flow is assigned on each round of the DRR scheduler.
+ * @NL80211_ATTR_HE_CAPABILITY: HE Capability information element (from
+ *	association request when used with NL80211_CMD_NEW_STATION). Can be set
+ *	only if %NL80211_STA_FLAG_WME is set.
  *
  * @NUM_NL80211_ATTR: total number of nl80211_attrs available
  * @NL80211_ATTR_MAX: highest attribute number currently defined
@@ -2677,6 +2680,8 @@ enum nl80211_attrs {
 	NL80211_ATTR_TXQ_MEMORY_LIMIT,
 	NL80211_ATTR_TXQ_QUANTUM,
 
+	NL80211_ATTR_HE_CAPABILITY,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
@@ -2726,7 +2731,8 @@ enum nl80211_attrs {
 #define NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY	24
 #define NL80211_HT_CAPABILITY_LEN		26
 #define NL80211_VHT_CAPABILITY_LEN		12
-
+#define NL80211_HE_MIN_CAPABILITY_LEN           16
+#define NL80211_HE_MAX_CAPABILITY_LEN           51
 #define NL80211_MAX_NR_CIPHER_SUITES		5
 #define NL80211_MAX_NR_AKM_SUITES		2
 
@@ -2853,6 +2859,38 @@ struct nl80211_sta_flag_update {
 	__u32 set;
 } __attribute__((packed));
 
+/**
+ * enum nl80211_he_gi - HE guard interval
+ * @NL80211_RATE_INFO_HE_GI_0_8: 0.8 usec
+ * @NL80211_RATE_INFO_HE_GI_1_6: 1.6 usec
+ * @NL80211_RATE_INFO_HE_GI_3_2: 3.2 usec
+ */
+enum nl80211_he_gi {
+	NL80211_RATE_INFO_HE_GI_0_8,
+	NL80211_RATE_INFO_HE_GI_1_6,
+	NL80211_RATE_INFO_HE_GI_3_2,
+};
+
+/**
+ * enum nl80211_he_ru_alloc - HE RU allocation values
+ * @NL80211_RATE_INFO_HE_RU_ALLOC_26: 26-tone RU allocation
+ * @NL80211_RATE_INFO_HE_RU_ALLOC_52: 52-tone RU allocation
+ * @NL80211_RATE_INFO_HE_RU_ALLOC_106: 106-tone RU allocation
+ * @NL80211_RATE_INFO_HE_RU_ALLOC_242: 242-tone RU allocation
+ * @NL80211_RATE_INFO_HE_RU_ALLOC_484: 484-tone RU allocation
+ * @NL80211_RATE_INFO_HE_RU_ALLOC_996: 996-tone RU allocation
+ * @NL80211_RATE_INFO_HE_RU_ALLOC_2x996: 2x996-tone RU allocation
+ */
+enum nl80211_he_ru_alloc {
+	NL80211_RATE_INFO_HE_RU_ALLOC_26,
+	NL80211_RATE_INFO_HE_RU_ALLOC_52,
+	NL80211_RATE_INFO_HE_RU_ALLOC_106,
+	NL80211_RATE_INFO_HE_RU_ALLOC_242,
+	NL80211_RATE_INFO_HE_RU_ALLOC_484,
+	NL80211_RATE_INFO_HE_RU_ALLOC_996,
+	NL80211_RATE_INFO_HE_RU_ALLOC_2x996,
+};
+
 /**
  * enum nl80211_rate_info - bitrate information
  *
@@ -2885,6 +2923,13 @@ struct nl80211_sta_flag_update {
  * @NL80211_RATE_INFO_5_MHZ_WIDTH: 5 MHz width - note that this is
  *	a legacy rate and will be reported as the actual bitrate, i.e.
  *	a quarter of the base (20 MHz) rate
+ * @NL80211_RATE_INFO_HE_MCS: HE MCS index (u8, 0-11)
+ * @NL80211_RATE_INFO_HE_NSS: HE NSS value (u8, 1-8)
+ * @NL80211_RATE_INFO_HE_GI: HE guard interval identifier
+ *	(u8, see &enum nl80211_he_gi)
+ * @NL80211_RATE_INFO_HE_DCM: HE DCM value (u8, 0/1)
+ * @NL80211_RATE_INFO_RU_ALLOC: HE RU allocation, if not present then
+ *	non-OFDMA was used (u8, see &enum nl80211_he_ru_alloc)
  * @__NL80211_RATE_INFO_AFTER_LAST: internal use
  */
 enum nl80211_rate_info {
@@ -2901,6 +2946,11 @@ enum nl80211_rate_info {
 	NL80211_RATE_INFO_160_MHZ_WIDTH,
 	NL80211_RATE_INFO_10_MHZ_WIDTH,
 	NL80211_RATE_INFO_5_MHZ_WIDTH,
+	NL80211_RATE_INFO_HE_MCS,
+	NL80211_RATE_INFO_HE_NSS,
+	NL80211_RATE_INFO_HE_GI,
+	NL80211_RATE_INFO_HE_DCM,
+	NL80211_RATE_INFO_HE_RU_ALLOC,
 
 	/* keep last */
 	__NL80211_RATE_INFO_AFTER_LAST,
@@ -3166,6 +3216,38 @@ enum nl80211_mpath_info {
 	NL80211_MPATH_INFO_MAX = __NL80211_MPATH_INFO_AFTER_LAST - 1
 };
 
+/**
+ * enum nl80211_band_iftype_attr - Interface type data attributes
+ *
+ * @__NL80211_BAND_IFTYPE_ATTR_INVALID: attribute number 0 is reserved
+ * @NL80211_BAND_IFTYPE_ATTR_IFTYPES: nested attribute containing a flag attribute
+ *     for each interface type that supports the band data
+ * @NL80211_BAND_IFTYPE_ATTR_HE_CAP_MAC: HE MAC capabilities as in HE
+ *     capabilities IE
+ * @NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY: HE PHY capabilities as in HE
+ *     capabilities IE
+ * @NL80211_BAND_IFTYPE_ATTR_HE_CAP_MCS_SET: HE supported NSS/MCS as in HE
+ *     capabilities IE
+ * @NL80211_BAND_IFTYPE_ATTR_HE_CAP_PPE: HE PPE thresholds information as
+ *     defined in HE capabilities IE
+ * @NL80211_BAND_IFTYPE_ATTR_MAX: highest band HE capability attribute currently
+ *     defined
+ * @__NL80211_BAND_IFTYPE_ATTR_AFTER_LAST: internal use
+ */
+enum nl80211_band_iftype_attr {
+	__NL80211_BAND_IFTYPE_ATTR_INVALID,
+
+	NL80211_BAND_IFTYPE_ATTR_IFTYPES,
+	NL80211_BAND_IFTYPE_ATTR_HE_CAP_MAC,
+	NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY,
+	NL80211_BAND_IFTYPE_ATTR_HE_CAP_MCS_SET,
+	NL80211_BAND_IFTYPE_ATTR_HE_CAP_PPE,
+
+	/* keep last */
+	__NL80211_BAND_IFTYPE_ATTR_AFTER_LAST,
+	NL80211_BAND_IFTYPE_ATTR_MAX = __NL80211_BAND_IFTYPE_ATTR_AFTER_LAST - 1
+};
+
 /**
  * enum nl80211_band_attr - band attributes
  * @__NL80211_BAND_ATTR_INVALID: attribute number 0 is reserved
@@ -3181,6 +3263,8 @@ enum nl80211_mpath_info {
  * @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_IFTYPE_DATA: nested array attribute, with each entry using
+ *	attributes from &enum nl80211_band_iftype_attr
  * @NL80211_BAND_ATTR_MAX: highest band attribute currently defined
  * @__NL80211_BAND_ATTR_AFTER_LAST: internal use
  */
@@ -3196,6 +3280,7 @@ enum nl80211_band_attr {
 
 	NL80211_BAND_ATTR_VHT_MCS_SET,
 	NL80211_BAND_ATTR_VHT_CAPA,
+	NL80211_BAND_ATTR_IFTYPE_DATA,
 
 	/* keep last */
 	__NL80211_BAND_ATTR_AFTER_LAST,

net/wireless/core.c

@@ -3,7 +3,7 @@
  *
  * Copyright 2006-2010		Johannes Berg <johannes@sipsolutions.net>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
- * Copyright 2015	Intel Deutschland GmbH
+ * Copyright 2015-2017	Intel Deutschland GmbH
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -744,6 +744,8 @@ int wiphy_register(struct wiphy *wiphy)
 
 	/* sanity check supported bands/channels */
 	for (band = 0; band < NUM_NL80211_BANDS; band++) {
+		u16 types = 0;
+
 		sband = wiphy->bands[band];
 		if (!sband)
 			continue;
@@ -788,6 +790,23 @@ int wiphy_register(struct wiphy *wiphy)
 			sband->channels[i].band = band;
 		}
 
+		for (i = 0; i < sband->n_iftype_data; i++) {
+			const struct ieee80211_sband_iftype_data *iftd;
+
+			iftd = &sband->iftype_data[i];
+
+			if (WARN_ON(!iftd->types_mask))
+				return -EINVAL;
+			if (WARN_ON(types & iftd->types_mask))
+				return -EINVAL;
+
+			/* at least one piece of information must be present */
+			if (WARN_ON(!iftd->he_cap.has_he))
+				return -EINVAL;
+
+			types |= iftd->types_mask;
+		}
+
 		have_band = true;
 	}
 

net/wireless/nl80211.c

@@ -428,6 +428,8 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
 	[NL80211_ATTR_TXQ_LIMIT] = { .type = NLA_U32 },
 	[NL80211_ATTR_TXQ_MEMORY_LIMIT] = { .type = NLA_U32 },
 	[NL80211_ATTR_TXQ_QUANTUM] = { .type = NLA_U32 },
+	[NL80211_ATTR_HE_CAPABILITY] = { .type = NLA_BINARY,
+					 .len = NL80211_HE_MAX_CAPABILITY_LEN },
 };
 
 /* policy for the key attributes */
@@ -1324,6 +1326,34 @@ static int nl80211_send_coalesce(struct sk_buff *msg,
 	return 0;
 }
 
+static int
+nl80211_send_iftype_data(struct sk_buff *msg,
+			 const struct ieee80211_sband_iftype_data *iftdata)
+{
+	const struct ieee80211_sta_he_cap *he_cap = &iftdata->he_cap;
+
+	if (nl80211_put_iftypes(msg, NL80211_BAND_IFTYPE_ATTR_IFTYPES,
+				iftdata->types_mask))
+		return -ENOBUFS;
+
+	if (he_cap->has_he) {
+		if (nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_MAC,
+			    sizeof(he_cap->he_cap_elem.mac_cap_info),
+			    he_cap->he_cap_elem.mac_cap_info) ||
+		    nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY,
+			    sizeof(he_cap->he_cap_elem.phy_cap_info),
+			    he_cap->he_cap_elem.phy_cap_info) ||
+		    nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_MCS_SET,
+			    sizeof(he_cap->he_mcs_nss_supp),
+			    &he_cap->he_mcs_nss_supp) ||
+		    nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_PPE,
+			    sizeof(he_cap->ppe_thres), he_cap->ppe_thres))
+			return -ENOBUFS;
+	}
+
+	return 0;
+}
+
 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
 				      struct ieee80211_supported_band *sband)
 {
@@ -1353,6 +1383,32 @@ static int nl80211_send_band_rateinfo(struct sk_buff *msg,
 			 sband->vht_cap.cap)))
 		return -ENOBUFS;
 
+	if (sband->n_iftype_data) {
+		struct nlattr *nl_iftype_data =
+			nla_nest_start(msg, NL80211_BAND_ATTR_IFTYPE_DATA);
+		int err;
+
+		if (!nl_iftype_data)
+			return -ENOBUFS;
+
+		for (i = 0; i < sband->n_iftype_data; i++) {
+			struct nlattr *iftdata;
+
+			iftdata = nla_nest_start(msg, i + 1);
+			if (!iftdata)
+				return -ENOBUFS;
+
+			err = nl80211_send_iftype_data(msg,
+						       &sband->iftype_data[i]);
+			if (err)
+				return err;
+
+			nla_nest_end(msg, iftdata);
+		}
+
+		nla_nest_end(msg, nl_iftype_data);
+	}
+
 	/* add bitrates */
 	nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
 	if (!nl_rates)
@@ -4472,6 +4528,9 @@ static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
 	case RATE_INFO_BW_160:
 		rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
 		break;
+	case RATE_INFO_BW_HE_RU:
+		rate_flg = 0;
+		WARN_ON(!(info->flags & RATE_INFO_FLAGS_HE_MCS));
 	}
 
 	if (rate_flg && nla_put_flag(msg, rate_flg))
@@ -4491,6 +4550,19 @@ static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
 		if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
 		    nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
 			return false;
+	} else if (info->flags & RATE_INFO_FLAGS_HE_MCS) {
+		if (nla_put_u8(msg, NL80211_RATE_INFO_HE_MCS, info->mcs))
+			return false;
+		if (nla_put_u8(msg, NL80211_RATE_INFO_HE_NSS, info->nss))
+			return false;
+		if (nla_put_u8(msg, NL80211_RATE_INFO_HE_GI, info->he_gi))
+			return false;
+		if (nla_put_u8(msg, NL80211_RATE_INFO_HE_DCM, info->he_dcm))
+			return false;
+		if (info->bw == RATE_INFO_BW_HE_RU &&
+		    nla_put_u8(msg, NL80211_RATE_INFO_HE_RU_ALLOC,
+			       info->he_ru_alloc))
+			return false;
 	}
 
 	nla_nest_end(msg, rate);
@@ -4887,7 +4959,8 @@ int cfg80211_check_station_change(struct wiphy *wiphy,
 			return -EINVAL;
 		if (params->supported_rates)
 			return -EINVAL;
-		if (params->ext_capab || params->ht_capa || params->vht_capa)
+		if (params->ext_capab || params->ht_capa || params->vht_capa ||
+		    params->he_capa)
 			return -EINVAL;
 	}
 
@@ -5093,6 +5166,15 @@ static int nl80211_set_station_tdls(struct genl_info *info,
 	if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
 		params->vht_capa =
 			nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
+	if (info->attrs[NL80211_ATTR_HE_CAPABILITY]) {
+		params->he_capa =
+			nla_data(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
+		params->he_capa_len =
+			nla_len(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
+
+		if (params->he_capa_len < NL80211_HE_MIN_CAPABILITY_LEN)
+			return -EINVAL;
+	}
 
 	err = nl80211_parse_sta_channel_info(info, params);
 	if (err)
@@ -5320,6 +5402,17 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 		params.vht_capa =
 			nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
 
+	if (info->attrs[NL80211_ATTR_HE_CAPABILITY]) {
+		params.he_capa =
+			nla_data(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
+		params.he_capa_len =
+			nla_len(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
+
+		/* max len is validated in nla policy */
+		if (params.he_capa_len < NL80211_HE_MIN_CAPABILITY_LEN)
+			return -EINVAL;
+	}
+
 	if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
 		params.opmode_notif_used = true;
 		params.opmode_notif =
@@ -5352,6 +5445,10 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 	if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
 		params.ht_capa = NULL;
 		params.vht_capa = NULL;
+
+		/* HE requires WME */
+		if (params.he_capa_len)
+			return -EINVAL;
 	}
 
 	/* When you run into this, adjust the code below for the new flag */

net/wireless/util.c

@@ -4,6 +4,7 @@
  *
  * Copyright 2007-2009	Johannes Berg <johannes@sipsolutions.net>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
+ * Copyright 2017	Intel Deutschland GmbH
  */
 #include <linux/export.h>
 #include <linux/bitops.h>
@@ -1142,6 +1143,85 @@ static u32 cfg80211_calculate_bitrate_vht(struct rate_info *rate)
 	return 0;
 }
 
+static u32 cfg80211_calculate_bitrate_he(struct rate_info *rate)
+{
+#define SCALE 2048
+	u16 mcs_divisors[12] = {
+		34133, /* 16.666666... */
+		17067, /*  8.333333... */
+		11378, /*  5.555555... */
+		 8533, /*  4.166666... */
+		 5689, /*  2.777777... */
+		 4267, /*  2.083333... */
+		 3923, /*  1.851851... */
+		 3413, /*  1.666666... */
+		 2844, /*  1.388888... */
+		 2560, /*  1.250000... */
+		 2276, /*  1.111111... */
+		 2048, /*  1.000000... */
+	};
+	u32 rates_160M[3] = { 960777777, 907400000, 816666666 };
+	u32 rates_969[3] =  { 480388888, 453700000, 408333333 };
+	u32 rates_484[3] =  { 229411111, 216666666, 195000000 };
+	u32 rates_242[3] =  { 114711111, 108333333,  97500000 };
+	u32 rates_106[3] =  {  40000000,  37777777,  34000000 };
+	u32 rates_52[3]  =  {  18820000,  17777777,  16000000 };
+	u32 rates_26[3]  =  {   9411111,   8888888,   8000000 };
+	u64 tmp;
+	u32 result;
+
+	if (WARN_ON_ONCE(rate->mcs > 11))
+		return 0;
+
+	if (WARN_ON_ONCE(rate->he_gi > NL80211_RATE_INFO_HE_GI_3_2))
+		return 0;
+	if (WARN_ON_ONCE(rate->he_ru_alloc >
+			 NL80211_RATE_INFO_HE_RU_ALLOC_2x996))
+		return 0;
+	if (WARN_ON_ONCE(rate->nss < 1 || rate->nss > 8))
+		return 0;
+
+	if (rate->bw == RATE_INFO_BW_160)
+		result = rates_160M[rate->he_gi];
+	else if (rate->bw == RATE_INFO_BW_80 ||
+		 (rate->bw == RATE_INFO_BW_HE_RU &&
+		  rate->he_ru_alloc == NL80211_RATE_INFO_HE_RU_ALLOC_996))
+		result = rates_969[rate->he_gi];
+	else if (rate->bw == RATE_INFO_BW_40 ||
+		 (rate->bw == RATE_INFO_BW_HE_RU &&
+		  rate->he_ru_alloc == NL80211_RATE_INFO_HE_RU_ALLOC_484))
+		result = rates_484[rate->he_gi];
+	else if (rate->bw == RATE_INFO_BW_20 ||
+		 (rate->bw == RATE_INFO_BW_HE_RU &&
+		  rate->he_ru_alloc == NL80211_RATE_INFO_HE_RU_ALLOC_242))
+		result = rates_242[rate->he_gi];
+	else if (rate->bw == RATE_INFO_BW_HE_RU &&
+		 rate->he_ru_alloc == NL80211_RATE_INFO_HE_RU_ALLOC_106)
+		result = rates_106[rate->he_gi];
+	else if (rate->bw == RATE_INFO_BW_HE_RU &&
+		 rate->he_ru_alloc == NL80211_RATE_INFO_HE_RU_ALLOC_52)
+		result = rates_52[rate->he_gi];
+	else if (rate->bw == RATE_INFO_BW_HE_RU &&
+		 rate->he_ru_alloc == NL80211_RATE_INFO_HE_RU_ALLOC_26)
+		result = rates_26[rate->he_gi];
+	else if (WARN(1, "invalid HE MCS: bw:%d, ru:%d\n",
+		      rate->bw, rate->he_ru_alloc))
+		return 0;
+
+	/* now scale to the appropriate MCS */
+	tmp = result;
+	tmp *= SCALE;
+	do_div(tmp, mcs_divisors[rate->mcs]);
+	result = tmp;
+
+	/* and take NSS, DCM into account */
+	result = (result * rate->nss) / 8;
+	if (rate->he_dcm)
+		result /= 2;
+
+	return result;
+}
+
 u32 cfg80211_calculate_bitrate(struct rate_info *rate)
 {
 	if (rate->flags & RATE_INFO_FLAGS_MCS)
@@ -1150,6 +1230,8 @@ u32 cfg80211_calculate_bitrate(struct rate_info *rate)
 		return cfg80211_calculate_bitrate_60g(rate);
 	if (rate->flags & RATE_INFO_FLAGS_VHT_MCS)
 		return cfg80211_calculate_bitrate_vht(rate);
+	if (rate->flags & RATE_INFO_FLAGS_HE_MCS)
+		return cfg80211_calculate_bitrate_he(rate);
 
 	return rate->legacy;
 }