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wifi: mt76: Fix EHT NSS radiotap reporting.

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Wireshark and iwlwifi use zero-based NSS reporting, adjust
mt76 to do the same.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Link: https://patch.msgid.link/20240909211238.3237111-2-greearb@candelatech.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Ben Greear 2024-09-09 14:12:38 -07:00 committed by Felix Fietkau
parent e016239fcb
commit 512e26db35
1 changed files with 3 additions and 2 deletions
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5
drivers/net/wireless/mediatek/mt76/mt76_connac3_mac.c
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@ -231,7 +231,8 @@ void mt76_connac3_mac_decode_eht_radiotap(struct sk_buff *skb, __le32 *rxv,
EHT_PREP(DATA0_PE_DISAMBIGUITY_OM, PE_DISAMBIG, rxv[5]) |
EHT_PREP(DATA0_LDPC_EXTRA_SYM_OM, LDPC_EXT_SYM, rxv[4]);
eht->data[7] |= le32_encode_bits(status->nss, IEEE80211_RADIOTAP_EHT_DATA7_NSS_S);
/* iwlwifi and wireshark expect radiotap to report zero-based NSS, so subtract 1. */
eht->data[7] |= le32_encode_bits(status->nss - 1, IEEE80211_RADIOTAP_EHT_DATA7_NSS_S);
eht->user_info[0] |=
EHT_BITS(USER_INFO_MCS_KNOWN) |
@ -240,7 +241,7 @@ void mt76_connac3_mac_decode_eht_radiotap(struct sk_buff *skb, __le32 *rxv,
EHT_BITS(USER_INFO_BEAMFORMING_KNOWN_O) |
EHT_BITS(USER_INFO_DATA_FOR_USER) |
le32_encode_bits(status->rate_idx, IEEE80211_RADIOTAP_EHT_USER_INFO_MCS) |
le32_encode_bits(status->nss, IEEE80211_RADIOTAP_EHT_USER_INFO_NSS_O);
le32_encode_bits(status->nss - 1, IEEE80211_RADIOTAP_EHT_USER_INFO_NSS_O);
if (le32_to_cpu(rxv[0]) & MT_PRXV_TXBF)
eht->user_info[0] |= EHT_BITS(USER_INFO_BEAMFORMING_O);