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

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On 6/23/2025 8:03 AM, Jeff Johnson wrote:
On 5/21/2025 3:45 PM, Pradeep Kumar Chitrapu wrote:
  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

This series no longer applies cleanly on ath/main, please rebase

Applying: wifi: ath12k: push HE MU-MIMO params to hardware
Using index info to reconstruct a base tree...
M       drivers/net/wireless/ath/ath12k/mac.c
M       drivers/net/wireless/ath/ath12k/mac.h
M       drivers/net/wireless/ath/ath12k/wmi.h
Falling back to patching base and 3-way merge...
Auto-merging drivers/net/wireless/ath/ath12k/wmi.h
Auto-merging drivers/net/wireless/ath/ath12k/mac.h
Auto-merging drivers/net/wireless/ath/ath12k/mac.c
Applying: wifi: ath12k: push EHT MU-MIMO params to hardware
Applying: wifi: ath12k: move HE MCS mapper to a separate function
Applying: wifi: ath12k: generate rx and tx mcs maps for supported HE mcs
Applying: wifi: ath12k: fix TX and RX MCS rate configurations in HE mode
Applying: wifi: ath12k: add support for setting fixed HE rate/GI/LTF
Applying: wifi: ath12k: clean up 80P80 support
Applying: wifi: ath12k: add support for 160 MHz bandwidth
Using index info to reconstruct a base tree...
M       drivers/net/wireless/ath/ath12k/core.h
M       drivers/net/wireless/ath/ath12k/mac.c
M       drivers/net/wireless/ath/ath12k/mac.h
M       drivers/net/wireless/ath/ath12k/wmi.c
M       drivers/net/wireless/ath/ath12k/wmi.h
Falling back to patching base and 3-way merge...
Auto-merging drivers/net/wireless/ath/ath12k/wmi.h
CONFLICT (content): Merge conflict in drivers/net/wireless/ath/ath12k/wmi.h
Auto-merging drivers/net/wireless/ath/ath12k/wmi.c
Auto-merging drivers/net/wireless/ath/ath12k/mac.h
Auto-merging drivers/net/wireless/ath/ath12k/mac.c
Auto-merging drivers/net/wireless/ath/ath12k/core.h
Recorded preimage for 'drivers/net/wireless/ath/ath12k/wmi.h'
error: Failed to merge in the changes.
Patch failed at 0008 wifi: ath12k: add support for 160 MHz bandwidth

Thanks Jeff..i waiting for discussion on "[PATCH ath-next] wifi: ath11k: fix peer HE MCS assignment" to close as this is related here..will post next revision today




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