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

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/[email protected]/

Signed-off-by: Yu Zhang(Yuriy) <[email protected]>
Signed-off-by: Qian Zhang <[email protected]>

---
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
-- 
2.34.1