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mac80211: calculate max RX NSS for EHT mode

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If the station supports EHT mode, calculate the maximum RX NSS
from EHT station capabilities.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Link: https://lore.kernel.org/r/20220214173004.cf61972c8919.I54f5a416f0789bf4eefad04703d941b6755f6dd6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Mordechay Goodstein 2022-02-14 17:30:04 +01:00 committed by Johannes Berg
parent 90603d29f1
commit 443df9a776
1 changed files with 13 additions and 1 deletions
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14
net/mac80211/vht.c
View file

@ -497,13 +497,24 @@ enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta)
void ieee80211_sta_set_rx_nss(struct sta_info *sta)
{
u8 ht_rx_nss = 0, vht_rx_nss = 0, he_rx_nss = 0, rx_nss;
u8 ht_rx_nss = 0, vht_rx_nss = 0, he_rx_nss = 0, eht_rx_nss = 0, rx_nss;
bool support_160;
/* if we received a notification already don't overwrite it */
if (sta->sta.rx_nss)
return;
if (sta->sta.eht_cap.has_eht) {
int i;
const u8 *rx_nss_mcs = (void *)&sta->sta.eht_cap.eht_mcs_nss_supp;
/* get the max nss for EHT over all possible bandwidths and mcs */
for (i = 0; i < sizeof(struct ieee80211_eht_mcs_nss_supp); i++)
eht_rx_nss = max_t(u8, eht_rx_nss,
u8_get_bits(rx_nss_mcs[i],
IEEE80211_EHT_MCS_NSS_RX));
}
if (sta->sta.he_cap.has_he) {
int i;
u8 rx_mcs_80 = 0, rx_mcs_160 = 0;
@ -569,6 +580,7 @@ void ieee80211_sta_set_rx_nss(struct sta_info *sta)
rx_nss = max(vht_rx_nss, ht_rx_nss);
rx_nss = max(he_rx_nss, rx_nss);
rx_nss = max(eht_rx_nss, rx_nss);
sta->sta.rx_nss = max_t(u8, 1, rx_nss);
}