On 4/11/2024 12:41 PM, Jeff Johnson wrote: > On 4/11/2024 9:56 AM, Kalle Valo wrote: >> From: Kalle Valo <quic_kvalo@xxxxxxxxxxx> >> >> ath12k will support Multi-Link Operation (MLO) in the future but not yet. A >> major change with MLO is that cfg80211 will disable Wireless Extension (WEXT) >> user space interface. To avoid having inconsistent user experience, first >> supporting WEXT and later not, disable WEXT already now. >> >> Now ath12k claims that WEXT is not supported: >> >> $ iwconfig wlan0 >> wlan0 no wireless extensions. >> >> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 >> >> Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx> >> --- >> drivers/net/wireless/ath/ath12k/mac.c | 6 ++++++ >> 1 file changed, 6 insertions(+) >> >> diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c >> index f15dcd75157d..e989628d7d72 100644 >> --- a/drivers/net/wireless/ath/ath12k/mac.c >> +++ b/drivers/net/wireless/ath/ath12k/mac.c >> @@ -8556,6 +8556,12 @@ static int ath12k_mac_hw_register(struct ath12k_hw *ah) >> wiphy->features |= NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | >> NL80211_FEATURE_AP_SCAN; >> >> + /* MLO is not yet supported so disable Wireless Extensions for now >> + * to make sure ath12k users don't use it. This flag can be removed >> + * once WIPHY_FLAG_SUPPORTS_MLO is enabled. >> + */ >> + wiphy->flags |= WIPHY_FLAG_DISABLE_WEXT; >> + >> hw->queues = ATH12K_HW_MAX_QUEUES; >> wiphy->tx_queue_len = ATH12K_QUEUE_LEN; >> hw->offchannel_tx_hw_queue = ATH12K_HW_MAX_QUEUES - 1; >> >> base-commit: 363e7193eaf258fe7f04e8db560bd8a282a12cd9 > > Currently on my version of Ubuntu when I switch to Hotspot mode I'm seeing: > [ 55.189623] warning: `iwconfig' uses wireless extensions which will stop > working for Wi-Fi 7 hardware; use nl80211 > > So are userspace folks aware of the need to move away from iwconfig? > Is there a Ubuntu / Network Manager fix fir this? And I've confirmed that with this patch in place I cannot start the Hotspot. So suggest you sit on that until userspace is ready. /jeff
