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wifi: nl80211: add support to configure 6 GHz non-HT duplicate transmission

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As per IEEE Std 802.11-2024, subclause 26.17.2.2, a 6 GHz AP can transmit
a Beacon frame using a non-HT duplicate PPDU, so that stations scanning
only PSC channels can discover it. Currently, there is no mechanism
to request the driver to transmit non-HT duplicate Beacon frames.

In [1], changes were made to parse the Beacon from user-space to set
the non-HT duplicate flag in the kernel. However, it was suggested that
non-HT transmission be part of the Beacon TX rate settings. Hence, add
NL80211_TXRATE_6GHZ_NON_HT_DUP as a flag attribute under
NL80211_ATTR_TX_RATES to let user-space request the driver to transmit
non-HT duplicate Beacons.

Also add validation to reject the Beacon if non-HT duplicate Beacon
transmission is enabled when legacy rates are not configured.

[1]  https://lore.kernel.org/all/1644914581-21682-1-git-send-email-quic_ramess@quicinc.com/

Signed-off-by: Manish Dharanenthiran <manish.dharanenthiran@oss.qualcomm.com>
Link: https://patch.msgid.link/20260805-dup-beacon-v1-1-68574869c896@oss.qualcomm.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Manish Dharanenthiran 2026-08-05 14:56:02 +05:30 • committed by Johannes Berg
commit 01c15a8b93
3 changed files with 18 additions and 0 deletions
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