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iwlwifi: dbg_ini: add periodic trigger support

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Allows to configure a periodic data collection

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Shahar S Matityahu 2019-03-19 16:40:15 +02:00 committed by Luca Coelho
parent 954454d610
commit bfd8e3dade
5 changed files with 47 additions and 0 deletions
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40
drivers/net/wireless/intel/iwlwifi/fw/dbg.c
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@ -2616,6 +2616,20 @@ static void iwl_fw_dbg_update_triggers(struct iwl_fw_runtime *fwrt,
active->trig->occurrences = cpu_to_le32(-1);
active->active = true;
if (id == IWL_FW_TRIGGER_ID_PERIODIC_TRIGGER) {
u32 collect_interval = le32_to_cpu(trig->trigger_data);
/* the minimum allowed interval is 50ms */
if (collect_interval < 50) {
collect_interval = 50;
trig->trigger_data =
cpu_to_le32(collect_interval);
}
mod_timer(&fwrt->dump.periodic_trig,
jiffies + msecs_to_jiffies(collect_interval));
}
next:
iter += sizeof(*trig) + trig_regs_size;
@ -2696,8 +2710,34 @@ IWL_EXPORT_SYMBOL(iwl_fw_dbg_apply_point);
void iwl_fwrt_stop_device(struct iwl_fw_runtime *fwrt)
{
del_timer(&fwrt->dump.periodic_trig);
iwl_fw_dbg_collect_sync(fwrt);
iwl_trans_stop_device(fwrt->trans);
}
IWL_EXPORT_SYMBOL(iwl_fwrt_stop_device);
void iwl_fw_dbg_periodic_trig_handler(struct timer_list *t)
{
struct iwl_fw_runtime *fwrt;
enum iwl_fw_ini_trigger_id id = IWL_FW_TRIGGER_ID_PERIODIC_TRIGGER;
int ret;
typeof(fwrt->dump) *dump_ptr = container_of(t, typeof(fwrt->dump),
periodic_trig);
fwrt = container_of(dump_ptr, typeof(*fwrt), dump);
ret = _iwl_fw_dbg_ini_collect(fwrt, id);
if (!ret || ret == -EBUSY) {
struct iwl_fw_ini_trigger *trig =
fwrt->dump.active_trigs[id].trig;
u32 occur = le32_to_cpu(trig->occurrences);
u32 collect_interval = le32_to_cpu(trig->trigger_data);
if (!occur)
return;
mod_timer(&fwrt->dump.periodic_trig,
jiffies + msecs_to_jiffies(collect_interval));
}
}

3
drivers/net/wireless/intel/iwlwifi/fw/dbg.h
View File

@ -385,11 +385,13 @@ void iwl_fw_dbg_read_d3_debug_data(struct iwl_fw_runtime *fwrt);
static inline void iwl_fw_flush_dump(struct iwl_fw_runtime *fwrt)
{
del_timer(&fwrt->dump.periodic_trig);
flush_delayed_work(&fwrt->dump.wk);
}
static inline void iwl_fw_cancel_dump(struct iwl_fw_runtime *fwrt)
{
del_timer(&fwrt->dump.periodic_trig);
cancel_delayed_work_sync(&fwrt->dump.wk);
}
@ -468,4 +470,5 @@ static inline void iwl_fw_error_collect(struct iwl_fw_runtime *fwrt)
}
}
void iwl_fw_dbg_periodic_trig_handler(struct timer_list *t);
#endif /* __iwl_fw_dbg_h__ */

2
drivers/net/wireless/intel/iwlwifi/fw/init.c
View File

@ -76,6 +76,8 @@ void iwl_fw_runtime_init(struct iwl_fw_runtime *fwrt, struct iwl_trans *trans,
fwrt->ops_ctx = ops_ctx;
INIT_DELAYED_WORK(&fwrt->dump.wk, iwl_fw_error_dump_wk);
iwl_fwrt_dbgfs_register(fwrt, dbgfs_dir);
timer_setup(&fwrt->dump.periodic_trig,
iwl_fw_dbg_periodic_trig_handler, 0);
}
IWL_EXPORT_SYMBOL(iwl_fw_runtime_init);

1
drivers/net/wireless/intel/iwlwifi/fw/runtime.h
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@ -146,6 +146,7 @@ struct iwl_fw_runtime {
u32 umac_err_id;
void *fifo_iter;
enum iwl_fw_ini_trigger_id ini_trig_id;
struct timer_list periodic_trig;
} dump;
#ifdef CONFIG_IWLWIFI_DEBUGFS
struct {

1
drivers/net/wireless/intel/iwlwifi/mvm/ops.c
View File

@ -1261,6 +1261,7 @@ static void iwl_mvm_reprobe_wk(struct work_struct *wk)
void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
{
iwl_abort_notification_waits(&mvm->notif_wait);
del_timer(&mvm->fwrt.dump.periodic_trig);
/*
* This is a bit racy, but worst case we tell mac80211 about