gitops/mt76
1
0
Fork 0
mirror of https://github.com/outbackdingo/mt76.git synced 2026-10-24 13:26:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

wifi: mt76: mt7996: set correct beamformee SS capability

Browse Source 
According to IEEE P802.11be/D6.0 Table 9-417n, beamformee SS field stands
for the maximum number of spatial streams that the STA can receive in an
EHT sounding NDP minus 1, and the minimum value of this field is 3.

This value indicates the decoding capability of a beamformee, which is
independent of current antenna settings. Correct the value for mt7996
and mt7992 chipsets based on their HW capability.

Signed-off-by: Howard Hsu <[email protected]>
Signed-off-by: Shayne Chen <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Howard Hsu
2024-08-16 19:21:32 +02:00
committed by Felix Fietkau
parent bf2eeec731
commit c2c6940e60
1 changed files with 17 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mt7996/init.c
+17 -6
View File
@@ -942,8 +942,12 @@ void mt7996_set_stream_vht_txbf_caps(struct mt7996_phy *phy)
cap = &phy->mt76->sband_5g.sband.vht_cap.cap;
*cap |= IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
FIELD_PREP(IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK, sts - 1);
IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE;
if (is_mt7996(phy->mt76->dev))
*cap |= FIELD_PREP(IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK, 3);
else
*cap |= FIELD_PREP(IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK, 4);
*cap &= ~(IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK |
IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
@@ -988,9 +992,15 @@ mt7996_set_stream_he_txbf_caps(struct mt7996_phy *phy,
IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO;
elem->phy_cap_info[2] |= c;
c = IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE |
IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4 |
IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4;
c = IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE;
if (is_mt7996(phy->mt76->dev))
c |= IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4 |
IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4;
else
c |= IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_5 |
IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_5;
elem->phy_cap_info[4] |= c;
/* do not support NG16 due to spec D4.0 changes subcarrier idx */
@@ -1187,7 +1197,8 @@ mt7996_init_eht_caps(struct mt7996_phy *phy, enum nl80211_band band,
IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE;
val = max_t(u8, sts - 1, 3);
/* Set the maximum capability regardless of the antenna configuration. */
val = is_mt7992(phy->mt76->dev) ? 4 : 3;
eht_cap_elem->phy_cap_info[0] |=
u8_encode_bits(u8_get_bits(val, BIT(0)),
IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK);