[PATCH ath-next v5 0/6] wifi: ath11k: Add single shot/periodic CFR capture support

[Qian Zhang]

On 1/5/2026 10:22 AM, Baochen Qiang wrote:
> 
> 
> On 12/30/2025 4:25 PM, Qian Zhang wrote:
>> To enable/disable cfr feature use command,
>>
>> echo <val> > /sys/kernel/debug/ieee80211/phyX/ath11k/enable_cfr
>>
>> where, val: 0 to disable CFR and 1 to enable CFR.
>>
>> To enable CFR capture for associated peers,
>>
>> echo "<val> <bw> <periodicity> <method>"
>>   >
>> /sys/kernel/debug/ieee80211/phyX/netdev\:wlanx/stations/<mac>/cfr_capture
>>
>> val: 0 - stop CFR capture
>>       1 - start CFR capture
>> bw: CFR capture bandwidth
>>       0 - 20MHZ
>>       1 - 40MHZ
>>       2 - 80MHZ
>> Periodicity: Periodicity at which hardware is expceted to collect CFR
>> dump.
>>       0 - single shot capture.
>>       non zero - for Periodic captures (value should be multiple of 10
>> ms)
>> method: Method used by hardware to collect the CFR dump.
>>       0 - from the ACKs of QOS NULL packets.
>>
>> To enable CFR capture for unassociated clients,
>>
>> echo "<mac address> <val> <periodicity>"
>>   > /sys/kernel/debug/ieee80211/phyX/ath11k/cfr_unassoc
>>
>> Mac address: mac address of the client.
>> Val: 0 - start CFR capture
>>       1 - stop CFR capture
>> Periodicity: Periodicity at which hardware is expceted to collect CFR
>> dump.
>>       0 - single shot capture.
>>       non zero - for Periodic captures (value should be multiple of 10
>> ms)
>>
>> To collect the cfr dump,
>> cat /sys/kernel/debug/ieee80211/phy0/ath11k/cfr_capture0 > /tmp/cfr.bin
>>
>> Previous link:
>> https://lore.kernel.org/all/1645005922-7252-1-git-send-email-quic_vnaralas@quicinc.com/
>>
>> Signed-off-by: Yu Zhang(Yuriy) <yu.zhang at oss.qualcomm.com>
>> Signed-off-by: Qian Zhang <qian.zhang at oss.qualcomm.com>
>>
>> ---
>> Changes in v5:
>>   - Restore the author in all patch commit messages.
>>   - Update patch 6/6. Cache the phymode during association and
>>     use it to replace phymode reported by the firmware.
>> Changes in v4:
>>   - Update patch 2/6. Remove redundant bw parameter check in
>>     ath11k_dbg_sta_write_cfr_capture()
>> Changes in v3:
>>   - Update related comments.
>> Changes in v2:
>>   - Update related comments.
>> ---
>>
>> Venkateswara Naralasetty (6):
>>    wifi: ath11k: Add initialization and deinitialization sequence for CFR
>>      module
>>    wifi: ath11k: Register debugfs for CFR configuration
>>    wifi: ath11k: Add support unassociated client CFR
>>    wifi: ath11k: Register relayfs entries for CFR dump
>>    wifi: ath11k: Register DBR event handler for CFR data
>>    wifi: ath11k: Register handler for CFR capture event
>>
>>   drivers/net/wireless/ath/ath11k/Kconfig       |   11 +
>>   drivers/net/wireless/ath/ath11k/Makefile      |    1 +
>>   drivers/net/wireless/ath/ath11k/cfr.c         | 1022 +++++++++++++++++
>>   drivers/net/wireless/ath/ath11k/cfr.h         |  308 +++++
>>   drivers/net/wireless/ath/ath11k/core.c        |   41 +-
>>   drivers/net/wireless/ath/ath11k/core.h        |   19 +-
>>   drivers/net/wireless/ath/ath11k/dbring.c      |   50 +-
>>   drivers/net/wireless/ath/ath11k/dbring.h      |    8 +-
>>   drivers/net/wireless/ath/ath11k/debug.h       |    8 +-
>>   drivers/net/wireless/ath/ath11k/debugfs_sta.c |  142 ++-
>>   drivers/net/wireless/ath/ath11k/hal.c         |    3 +-
>>   drivers/net/wireless/ath/ath11k/hw.h          |    5 +-
>>   drivers/net/wireless/ath/ath11k/mac.c         |   19 +-
>>   drivers/net/wireless/ath/ath11k/wmi.c         |  147 ++-
>>   drivers/net/wireless/ath/ath11k/wmi.h         |   97 +-
>>   15 files changed, 1855 insertions(+), 26 deletions(-)
>>   create mode 100644 drivers/net/wireless/ath/ath11k/cfr.c
>>   create mode 100644 drivers/net/wireless/ath/ath11k/cfr.h
>>
>>
>> base-commit: 4465d808fda12fa47f83733a9f7b7dbc29d0ea54
>> prerequisite-patch-id: f44bdcbd36af0c3fd57b477848bf4699cade9389
>> prerequisite-patch-id: 76c61f8f00aac2a3b9ff31e0166bb12997c2b0cf
>> prerequisite-patch-id: 886b24b2496167c304e8ed42b5d879e0ecab111c
>> prerequisite-patch-id: 672baf608620c531b3765941c2719ad9d34b99c1
>> prerequisite-patch-id: 07c9ff6fcaf4ba464be993caa19eb49113eedbdf
> 
> what are these dependencies? They are not present in old revisions.
> 
> BTW, if you indeed has dependencies, in addition to these prerequisite-patch-id's, please
> also list them explicitly in the cover letter above.
> 

These dependency details were added by mistake, and I will remove them.