ieee80211: Add EHT (802.11be) definitions

Based on Draft P802.11be_D1.4.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Link: https://lore.kernel.org/r/20220214173004.928e23cacb2b.Id30a3ef2844b296efbd5486fe1da9ca36a95c5cf@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Ilan Peer 2022-02-14 17:29:51 +01:00 committed by Johannes Berg
parent 64e5942910
commit cbc1ca0a9d
1 changed files with 299 additions and 0 deletions

View File

@ -18,6 +18,7 @@
#include <linux/types.h>
#include <linux/if_ether.h>
#include <linux/etherdevice.h>
#include <linux/bitfield.h>
#include <asm/byteorder.h>
#include <asm/unaligned.h>
@ -1925,6 +1926,111 @@ struct ieee80211_mu_edca_param_set {
struct ieee80211_he_mu_edca_param_ac_rec ac_vo;
} __packed;
#define IEEE80211_EHT_MCS_NSS_RX 0x0f
#define IEEE80211_EHT_MCS_NSS_TX 0xf0
/**
* struct ieee80211_eht_mcs_nss_supp_20mhz_only - EHT 20MHz only station max
* supported NSS for per MCS.
*
* For each field below, bits 0 - 3 indicate the maximal number of spatial
* streams for Rx, and bits 4 - 7 indicate the maximal number of spatial streams
* for Tx.
*
* @rx_tx_mcs7_max_nss: indicates the maximum number of spatial streams
* supported for reception and the maximum number of spatial streams
* supported for transmission for MCS 0 - 7.
* @rx_tx_mcs9_max_nss: indicates the maximum number of spatial streams
* supported for reception and the maximum number of spatial streams
* supported for transmission for MCS 8 - 9.
* @rx_tx_mcs11_max_nss: indicates the maximum number of spatial streams
* supported for reception and the maximum number of spatial streams
* supported for transmission for MCS 10 - 11.
* @rx_tx_mcs13_max_nss: indicates the maximum number of spatial streams
* supported for reception and the maximum number of spatial streams
* supported for transmission for MCS 12 - 13.
*/
struct ieee80211_eht_mcs_nss_supp_20mhz_only {
u8 rx_tx_mcs7_max_nss;
u8 rx_tx_mcs9_max_nss;
u8 rx_tx_mcs11_max_nss;
u8 rx_tx_mcs13_max_nss;
};
/**
* struct ieee80211_eht_mcs_nss_supp_bw - EHT max supported NSS per MCS (except
* 20MHz only stations).
*
* For each field below, bits 0 - 3 indicate the maximal number of spatial
* streams for Rx, and bits 4 - 7 indicate the maximal number of spatial streams
* for Tx.
*
* @rx_tx_mcs9_max_nss: indicates the maximum number of spatial streams
* supported for reception and the maximum number of spatial streams
* supported for transmission for MCS 0 - 9.
* @rx_tx_mcs11_max_nss: indicates the maximum number of spatial streams
* supported for reception and the maximum number of spatial streams
* supported for transmission for MCS 10 - 11.
* @rx_tx_mcs13_max_nss: indicates the maximum number of spatial streams
* supported for reception and the maximum number of spatial streams
* supported for transmission for MCS 12 - 13.
*/
struct ieee80211_eht_mcs_nss_supp_bw {
u8 rx_tx_mcs9_max_nss;
u8 rx_tx_mcs11_max_nss;
u8 rx_tx_mcs13_max_nss;
};
/**
* struct ieee80211_eht_cap_elem_fixed - EHT capabilities fixed data
*
* This structure is the "EHT Capabilities element" fixed fields as
* described in P802.11be_D1.4 section 9.4.2.313.
*
* @mac_cap_info: MAC capabilities, see IEEE80211_EHT_MAC_CAP*
* @phy_cap_info: PHY capabilities, see IEEE80211_EHT_PHY_CAP*
*/
struct ieee80211_eht_cap_elem_fixed {
u8 mac_cap_info[2];
u8 phy_cap_info[9];
} __packed;
/**
* struct ieee80211_eht_cap_elem - EHT capabilities element
* @fixed: fixed parts, see &ieee80211_eht_cap_elem_fixed
* @optional: optional parts
*/
struct ieee80211_eht_cap_elem {
struct ieee80211_eht_cap_elem_fixed fixed;
/*
* Followed by:
* Supported EHT-MCS And NSS Set field: 4, 3, 6 or 9 octets.
* EHT PPE Thresholds field: variable length.
*/
u8 optional[];
} __packed;
/**
* struct ieee80211_eht_operation - eht operation element
*
* This structure is the "EHT Operation Element" fields as
* described in P802.11be_D1.4 section 9.4.2.311
*
* FIXME: The spec is unclear how big the fields are, and doesn't
* indicate the "Disabled Subchannel Bitmap Present" in the
* structure (Figure 9-1002a) at all ...
*/
struct ieee80211_eht_operation {
u8 chan_width;
u8 ccfs;
u8 present_bm;
u8 disable_subchannel_bitmap[];
} __packed;
#define IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT 0x1
/* 802.11ac VHT Capabilities */
#define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 0x00000000
#define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 0x00000001
@ -2129,6 +2235,8 @@ enum ieee80211_client_reg_power {
#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_MASK_ALL 0x1e
#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
@ -2622,6 +2730,194 @@ ieee80211_he_spr_size(const u8 *he_spr_ie)
#define S1G_OPER_CH_WIDTH_PRIMARY_1MHZ BIT(0)
#define S1G_OPER_CH_WIDTH_OPER GENMASK(4, 1)
/* EHT MAC capabilities as defined in P802.11be_D1.4 section 9.4.2.313.2 */
#define IEEE80211_EHT_MAC_CAP0_NSEP_PRIO_ACCESS 0x01
#define IEEE80211_EHT_MAC_CAP0_OM_CONTROL 0x02
#define IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1 0x04
#define IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE2 0x08
#define IEEE80211_EHT_MAC_CAP0_RESTRICTED_TWT 0x10
#define IEEE80211_EHT_MAC_CAP0_SCS_TRAFFIC_DESC 0x20
#define IEEE80211_EHT_MAC_CAP0_MAX_AMPDU_LEN_MASK 0xc0
#define IEEE80211_EHT_MAC_CAP0_MAX_AMPDU_LEN_3895 0
#define IEEE80211_EHT_MAC_CAP0_MAX_AMPDU_LEN_7991 1
#define IEEE80211_EHT_MAC_CAP0_MAX_AMPDU_LEN_11454 2
/* EHT PHY capabilities as defined in P802.11be_D1.4 section 9.4.2.313.3 */
#define IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ 0x02
#define IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ 0x04
#define IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI 0x08
#define IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO 0x10
#define IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER 0x20
#define IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE 0x40
/* EHT beamformee number of spatial streams <= 80MHz is split */
#define IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK 0x80
#define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK 0x03
#define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK 0x1c
#define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK 0xe0
#define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK 0x07
#define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK 0x38
/* EHT number of sounding dimensions for 320MHz is split */
#define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK 0xc0
#define IEEE80211_EHT_PHY_CAP3_SOUNDING_DIM_320MHZ_MASK 0x01
#define IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK 0x02
#define IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK 0x04
#define IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK 0x08
#define IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK 0x10
#define IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK 0x20
#define IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK 0x40
#define IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK 0x80
#define IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO 0x01
#define IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP 0x02
#define IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP 0x04
#define IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI 0x08
#define IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK 0xf0
#define IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK 0x01
#define IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP 0x02
#define IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP 0x04
#define IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT 0x08
#define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK 0x30
#define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US 0
#define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US 1
#define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US 2
#define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US 3
/* Maximum number of supported EHT LTF is split */
#define IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK 0xc0
#define IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK 0x07
#define IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK 0x78
#define IEEE80211_EHT_PHY_CAP6_EHT_DUP_6GHZ_SUPP 0x80
#define IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW 0x01
#define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ 0x02
#define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ 0x04
#define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ 0x08
#define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ 0x10
#define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ 0x20
#define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ 0x40
#define IEEE80211_EHT_PHY_CAP7_TB_SOUNDING_FDBK_RATE_LIMIT 0x80
#define IEEE80211_EHT_PHY_CAP8_RX_1024QAM_WIDER_BW_DL_OFDMA 0x01
#define IEEE80211_EHT_PHY_CAP8_RX_4096QAM_WIDER_BW_DL_OFDMA 0x02
/*
* EHT operation channel width as defined in P802.11be_D1.4 section 9.4.2.311
*/
#define IEEE80211_EHT_OPER_CHAN_WIDTH 0x7
#define IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ 0
#define IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ 1
#define IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ 2
#define IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ 3
#define IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ 4
/* Calculate 802.11be EHT capabilities IE Tx/Rx EHT MCS NSS Support Field size */
static inline u8
ieee80211_eht_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap,
const struct ieee80211_eht_cap_elem_fixed *eht_cap)
{
u8 count = 0;
/* on 2.4 GHz, if it supports 40 MHz, the result is 3 */
if (he_cap->phy_cap_info[0] &
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)
return 3;
/* on 2.4 GHz, these three bits are reserved, so should be 0 */
if (he_cap->phy_cap_info[0] &
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G)
count += 3;
if (he_cap->phy_cap_info[0] &
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
count += 3;
if (eht_cap->phy_cap_info[0] & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ)
count += 3;
return count ? count : 4;
}
/* 802.11be EHT PPE Thresholds */
#define IEEE80211_EHT_PPE_THRES_NSS_POS 0
#define IEEE80211_EHT_PPE_THRES_NSS_MASK 0xf
#define IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK 0x1f0
#define IEEE80211_EHT_PPE_THRES_INFO_PPET_SIZE 3
#define IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE 9
/*
* Calculate 802.11be EHT capabilities IE EHT field size
*/
static inline u8
ieee80211_eht_ppe_size(u16 ppe_thres_hdr, const u8 *phy_cap_info)
{
u32 n;
if (!(phy_cap_info[5] &
IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT))
return 0;
n = hweight16(ppe_thres_hdr &
IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK);
n *= 1 + u16_get_bits(ppe_thres_hdr, IEEE80211_EHT_PPE_THRES_NSS_MASK);
/*
* Each pair is 6 bits, and we need to add the 9 "header" bits to the
* total size.
*/
n = n * IEEE80211_EHT_PPE_THRES_INFO_PPET_SIZE * 2 +
IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE;
return DIV_ROUND_UP(n, 8);
}
static inline bool
ieee80211_eht_capa_size_ok(const u8 *he_capa, const u8 *data, u8 len)
{
const struct ieee80211_eht_cap_elem_fixed *elem = (const void *)data;
u8 needed = sizeof(struct ieee80211_eht_cap_elem_fixed);
if (len < needed || !he_capa)
return false;
needed += ieee80211_eht_mcs_nss_size((const void *)he_capa,
(const void *)data);
if (len < needed)
return false;
if (elem->phy_cap_info[5] &
IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {
u16 ppe_thres_hdr;
if (len < needed + sizeof(ppe_thres_hdr))
return false;
ppe_thres_hdr = get_unaligned_le16(data + needed);
needed += ieee80211_eht_ppe_size(ppe_thres_hdr,
elem->phy_cap_info);
}
return len >= needed;
}
static inline bool
ieee80211_eht_oper_size_ok(const u8 *data, u8 len)
{
const struct ieee80211_eht_operation *elem = (const void *)data;
u8 needed = sizeof(*elem);
if (len < needed)
return false;
if (elem->present_bm & IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT)
needed += 2;
return len >= needed;
}
#define LISTEN_INT_USF GENMASK(15, 14)
#define LISTEN_INT_UI GENMASK(13, 0)
@ -3077,6 +3373,9 @@ enum ieee80211_eid_ext {
WLAN_EID_EXT_SHORT_SSID_LIST = 58,
WLAN_EID_EXT_HE_6GHZ_CAPA = 59,
WLAN_EID_EXT_UL_MU_POWER_CAPA = 60,
WLAN_EID_EXT_EHT_OPERATION = 106,
WLAN_EID_EXT_EHT_MULTI_LINK = 107,
WLAN_EID_EXT_EHT_CAPABILITY = 108,
};
/* Action category code */