[PATCH] wifi: ath12k: Add WMI control path stats infra

[Jeff Johnson]

On 5/29/2024 11:09 AM, Ramya Gnanasekar wrote:
> From: Rajat Soni <quic_rajson at quicinc.com>
> 
> Currently, firmware stats is requested by host through HTT interface.
> Since HTT interface is already overloaded for data path stats,
> leveraging control path to request other stats through WMI interface.
> 
> Add debugfs to request the stats and dump the stats forwarded by firmware.
> 
> ath12k
> `-- pci-0000:06:00.0
>     |-- mac0
>         `-- wmi_ctrl_stats
> 
> This patch also adds support to request PDEV Tx stats, parse and dump
> the data sent from firmware.
> 
> Usage:
> echo <stats id> <action> > /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/wmi_ctrl_stats
> 
> Sample:
> echo 1 1 > /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/wmi_ctrl_stats
> cat /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/wmi_ctrl_stats
> WMI_CTRL_PATH_PDEV_TX_STATS:
> fw_tx_mgmt_subtype =  0:0, 1:2, 2:0, 3:0, 4:0, 5:37, 6:0, 7:0, 8:908, 9:0, 10:0, 11:18, 12:2, 13:3, 14:0, 15:0,
> fw_rx_mgmt_subtype =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0, 10:0, 11:0, 12:0, 13:0, 14:0, 15:0,
> scan_fail_dfs_violation_time_ms = 0
> nol_chk_fail_last_chan_freq = 0
> nol_chk_fail_time_stamp_ms = 0
> tot_peer_create_cnt = 7
> tot_peer_del_cnt = 7
> tot_peer_del_resp_cnt = 7
> vdev_pause_fail_rt_to_sched_algo_fifo_full_cnt = 0
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
> 
> Signed-off-by: Rajat Soni <quic_rajson at quicinc.com>
> Co-developed-by: Ramya Gnanasekar <quic_rgnanase at quicinc.com>
> Signed-off-by: Ramya Gnanasekar <quic_rgnanase at quicinc.com>
> ---
> Depends-On: [PATCH v2 3/5] wifi: ath12k: Fix Pdev id in HTT stats request for WCN7850
> Link: https://lore.kernel.org/linux-wireless/20240510050806.514126-1-quic_rgnanase@quicinc.com
> ---
Acked-by: Jeff Johnson <quic_jjohnson at quicinc.com>