From a83b9141b540f96dd59409c6487828e880113a29 Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Wed, 8 Apr 2009 11:39:32 -0700 Subject: iwlwifi: adding interrupt counter in debugfs for debugging This patch adds interrupt statistics report to debugfs, this can help to understand number of interrupts happened which including HW/SW error for easier and better debugging. in /sys/kernel/debug/ieee80211/phyN/iwlagn/data directory use "cat interrupt" to view the current interrupt counter use "echo 0 > interrupt" to clear interrupt counter Signed-off-by: Wey-Yi Guy Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-dev.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'drivers/net/wireless/iwlwifi/iwl-dev.h') diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 59930f398f31..0922e33a7d42 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -819,6 +819,21 @@ enum { MEASUREMENT_ACTIVE = (1 << 1), }; +/* interrupt statistics */ +struct isr_statistics { + u32 hw; + u32 sw; + u32 sw_err; + u32 sch; + u32 alive; + u32 rfkill; + u32 ctkill; + u32 wakeup; + u32 rx; + u32 rx_handlers[REPLY_MAX]; + u32 tx; + u32 unhandled; +}; #define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */ @@ -975,6 +990,9 @@ struct iwl_priv { u64 bytes; } tx_stats[3], rx_stats[3]; + /* counts interrupts */ + struct isr_statistics isr_stats; + struct iwl_power_mgr power_data; struct iwl_notif_statistics statistics; -- cgit v1.2.2