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[ath-next,V14,0/9] wifi: ath12k: add MU-MIMO and 160 MHz bandwidth support

Message ID 20250521224539.355985-1-quic_pradeepc@quicinc.com
Headers show
Series wifi: ath12k: add MU-MIMO and 160 MHz bandwidth support | expand

Message

Pradeep Kumar Chitrapu May 21, 2025, 10:45 p.m. UTC 
Add support for
1. enabling MU-MIMO in HE and EHT modes from hardware
2. setting fixed HE rate/GI/LTF
3. 160 MHz bandwidth in HE mode
4. extended NSS bandwidth support

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

changes in v14:
 patch 6/9:
 - cap max_nss using ar->num_tx_chains to fix interop issue caused due
   to sending nss value 4 when firmware only supports nss value 2.
 patch 8/9:
 - Set the default return value to MODE_11AC_VHT160 for 160 MHz
   to allow STA to connect to the AP even if it does not
   explicitly indicate 160 MHz bandwidth support.

changes in v13:
 - rebase

changes in v12:
 - rebase

changes in v11:
 patch 1/9:
  - fix return values in ath12k_mac_set_he_txbf_conf() and
    ath12k_mac_vif_recalc_sta_he_txbf()
 patch 6/9:
  - fix missing he_mcs initialization in ath12k_mac_init_arvif()

changes in v10:
 patch 6/9:
  - use ath12k_ahsta_to_sta()
  - fix rcu_dereference warning in ath12k_mac_set_bitrate_mask_iter()
  - change return type for ath12k_mac_validate_fixed_rate_settings()
  - improve readability by adhering to nl80211 definitions of GI
    NL80211_TXRATE_DEFAULT_GI. Introduce ath12k_mac_nlgi_to_wmigi()
    for conversion.
 patch 7/9:
  - do not change default MODE_11AC_VHT160 in
    ath12k_mac_get_phymode_vht() as it breaks clients which do not
    set VHT_CAP_SUPP_CHAN_WIDTH_160MHZ.
 patch 8/9:
  - Use IEEE80211_VHT_CAP_EXT_NSS_BW_MASK along with
    IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ for determining VHT160
    phymode.

changes in v9: rebase on top of master branch with mlo changes
 patch 1/9 and 2/9:
  - fetch link_conf using ath12k_mac_get_link_bss_conf()
    instead of arvif->vif->bss_conf before mlo
 patch 6/9
  - fetch mcs/nss values from sta->link[] instead of sta->deflink
  - fix spelling of 'incompatibility'
 patch 8/9
  - replace sta->deflink.addr with arsta->addr in
    ath12k_peer_assoc_h_vht
 patch 9/9
  - replace sta->deflink.rx_nss with link_sta->rx_nss

changes in v8:
 - rebase and resolve KASAN warnings reported by Jeff in v7, in patch 6/9.

Pradeep Kumar Chitrapu (9):
  wifi: ath12k: push HE MU-MIMO params to hardware
  wifi: ath12k: push EHT MU-MIMO params to hardware
  wifi: ath12k: move HE MCS mapper to a separate function
  wifi: ath12k: generate rx and tx mcs maps for supported HE mcs
  wifi: ath12k: fix TX and RX MCS rate configurations in HE mode
  wifi: ath12k: add support for setting fixed HE rate/GI/LTF
  wifi: ath12k: clean up 80P80 support
  wifi: ath12k: add support for 160 MHz bandwidth
  wifi: ath12k: add extended NSS bandwidth support for 160 MHz

 drivers/net/wireless/ath/ath12k/core.h |    2 +
 drivers/net/wireless/ath/ath12k/mac.c  | 1144 ++++++++++++++++++++----
 drivers/net/wireless/ath/ath12k/mac.h  |   17 +
 drivers/net/wireless/ath/ath12k/wmi.c  |   13 +-
 drivers/net/wireless/ath/ath12k/wmi.h  |  107 ++-
 5 files changed, 1061 insertions(+), 222 deletions(-)


base-commit: 0d777aa2ca77584b339ce195db86fe0ee7dda5d5