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[ath-pending,v2,0/2] Add split-phy scan support in single wiphy

Message ID 20250507194832.2501668-1-rameshkumar.sundaram@oss.qualcomm.com
Headers show
Series Add split-phy scan support in single wiphy | expand

Message

Rameshkumar Sundaram May 7, 2025, 7:48 p.m. UTC 
When two split-phy devices having supported frequency range in same band
(as mentioned below) are combined into an ath12k HW group, they will be
part of same wiphy and hence the channel list (wiphy->bands[]) will be
common for all of the radios (ar).

1 - 2.4 GHz + 5 GHz Low band
2 - 5 GHz High band + 6 GHz

When a scan is triggered with frequency list containing frequencies of
both  5 GHz low and 5 GHz high, mac80211 generates a single scan request
to driver with both the frequencies. This is because mac80211 splits the
the scan request based on band.
This results in driver scheduling scan for both frequencies in same radio,
as driver always assumes that the scan request frequency list from
mac80211 only contains frequencies for one radio.
Split the scan request frequency list based on the supported frequency
ranges of radios in a band and schedule scan to corresponding radios.

Since the scan request is split in ath12k driver internally, wait for
all radios to complete their scan and report the same to mac80211.

Rameshkumar Sundaram (2):
  wifi: ath12k: Prepare ahvif scan link for parallel scan
  wifi: ath12k: Split scan request for split band device

 drivers/net/wireless/ath/ath12k/core.h |   4 +-
 drivers/net/wireless/ath/ath12k/mac.c  | 197 +++++++++++++++++++------
 drivers/net/wireless/ath/ath12k/mac.h  |   7 +-
 3 files changed, 160 insertions(+), 48 deletions(-)


base-commit: 889c2406b1c5e92bb83a5eb798f4966e302d2a51