• Seevalamuthu Mariappan's avatar
    ath11k: Add debugfs interface to configure firmware debug log level · f295ad91
    Seevalamuthu Mariappan authored
    Add debugfs interface "fw_dbglog_config" to configure firmware log level.
    Configuration is done via WMI command WMI_DBGLOG_CFG_CMDID.
    
    Command to configure,
    echo "<dbglog_param> <values>" >
    /sys/kernel/debug/ath11k/<hw>/macX/fw_dbglog_config
    
    where dbglog_param can be,
      1) WMI_DEBUG_LOG_PARAM_LOG_LEVEL - configure log level for a given module
         here, <values> = <0xaaaa00bb>, 'aaaa' - module id and 'bb' - loglevel
      2) WMI_DEBUG_LOG_PARAM_VDEV_ENABLE - enable debug log for a given vdev
         here, <values> = vdev_id
      3) WMI_DEBUG_LOG_PARAM_VDEV_DISABLE - disable debug log for a given vdev
         except ERROR logs
         here, <values> = vdev_id
      4) WMI_DEBUG_LOG_PARAM_VDEV_ENABLE_BITMAP - set vdev enable bitmap
           here, <values> = vdev_enable_bitmap
      5) WMI_DEBUG_LOG_PARAM_MOD_ENABLE_BITMAP - set a given log level to all the
         modules specified in the module bitmap. Command to configure for this log param,
    
         $ echo "5 <values> <module_id_index> <is_end>" >
             /sys/kernel/debug/ath11k/<hw>/macX/fw_dbglog_config
         here,
                    <values> = <0xaaaaaaaa000000bb>, 'aaaaaaaa' - module bitmap and
                              'bb' - loglevel
                    <module_id_index> = index of module bitmap. Max module id is 512.
                                        So, module_id_index is 0-15.
                    <is_end> = to indicate if more configuration to follow.
    
      6) WMI_DEBUG_LOG_PARAM_WOW_MOD_ENABLE_BITMAP - Wow mode specific logging enable.
         Command to configure for this log param,
    
          $ echo "6 <values> <module_id_index> <is_end>" >
              /sys/kernel/debug/ath11k/<hw>/macX/fw_dbglog_config
          here,
                     <values> = <0xaaaaaaaa000000bb>, 'aaaaaaaa' - module bitmap and
                                  'bb' - loglevel
                     <module_id_index> = index of module bitmap. Max module id is 512.
                                         So, module_id_index is 0-15.
                     <is_end> = to indicate if more configuration to follow.
    
    Sample command usage,
    
    To enable module WLAN_MODULE_WMI and log level ATH11K_FW_DBGLOG_VERBOSE,
    echo "1 0x10001" > /sys/kernel/debug/ath11k/<hw>/macX/fw_dbglog_config
    
    To enable module bit map from 32 to 63 and log level ATH11K_FW_DBGLOG_VERBOSE,
    echo "5 0xffffffff00000001 1 1" > /sys/kernel/debug/ath11k/<hw>/macX/fw_dbglog_config
    
    Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1
    Signed-off-by: default avatarSeevalamuthu Mariappan <quic_seevalam@quicinc.com>
    Signed-off-by: default avatarKalle Valo <quic_kvalo@quicinc.com>
    Link: https://lore.kernel.org/r/1642405103-32302-1-git-send-email-quic_seevalam@quicinc.com
    f295ad91
debugfs.h 8.86 KB