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iwlwifi: dbg_ini: add periodic trigger new API support

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Enable periodic trigger.
Allows the driver to trigger dump collection in constant intervals.

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 2019-07-23 15:10:59 +03:00 committed by Luca Coelho
parent 14124b2578
commit 60e8abd9d3
2 changed files with 106 additions and 1 deletions
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105
drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
View File

@ -95,6 +95,20 @@ struct iwl_dbg_tlv_ver_data {
int max_ver;
};
/**
* struct iwl_dbg_tlv_timer_node - timer node struct
* @list: list of &struct iwl_dbg_tlv_timer_node
* @timer: timer
* @fwrt: &struct iwl_fw_runtime
* @tlv: TLV attach to the timer node
*/
struct iwl_dbg_tlv_timer_node {
struct list_head list;
struct timer_list timer;
struct iwl_fw_runtime *fwrt;
struct iwl_ucode_tlv *tlv;
};
static const struct iwl_dbg_tlv_ver_data
dbg_ver_table[IWL_DBG_TLV_TYPE_NUM] = {
[IWL_DBG_TLV_TYPE_DEBUG_INFO] = {.min_ver = 1, .max_ver = 1,},
@ -310,7 +324,14 @@ void iwl_dbg_tlv_alloc(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv,
void iwl_dbg_tlv_del_timers(struct iwl_trans *trans)
{
/* will be used later */
struct list_head *timer_list = &trans->dbg.periodic_trig_list;
struct iwl_dbg_tlv_timer_node *node, *tmp;
list_for_each_entry_safe(node, tmp, timer_list, list) {
del_timer(&node->timer);
list_del(&node->list);
kfree(node);
}
}
IWL_EXPORT_SYMBOL(iwl_dbg_tlv_del_timers);
@ -438,6 +459,7 @@ void iwl_dbg_tlv_init(struct iwl_trans *trans)
int i;
INIT_LIST_HEAD(&trans->dbg.debug_info_tlv_list);
INIT_LIST_HEAD(&trans->dbg.periodic_trig_list);
for (i = 0; i < ARRAY_SIZE(trans->dbg.time_point); i++) {
struct iwl_dbg_tlv_time_point_data *tp =
@ -654,6 +676,83 @@ static void iwl_dbg_tlv_send_hcmds(struct iwl_fw_runtime *fwrt,
}
}
static void iwl_dbg_tlv_periodic_trig_handler(struct timer_list *t)
{
struct iwl_dbg_tlv_timer_node *timer_node =
from_timer(timer_node, t, timer);
struct iwl_fwrt_dump_data dump_data = {
.trig = (void *)timer_node->tlv->data,
};
int ret;
ret = iwl_fw_dbg_ini_collect(timer_node->fwrt, &dump_data);
if (!ret || ret == -EBUSY) {
u32 occur = le32_to_cpu(dump_data.trig->occurrences);
u32 collect_interval = le32_to_cpu(dump_data.trig->data[0]);
if (!occur)
return;
mod_timer(t, jiffies + msecs_to_jiffies(collect_interval));
}
}
static void iwl_dbg_tlv_set_periodic_trigs(struct iwl_fw_runtime *fwrt)
{
struct iwl_dbg_tlv_node *node;
struct list_head *trig_list =
&fwrt->trans->dbg.time_point[IWL_FW_INI_TIME_POINT_PERIODIC].active_trig_list;
list_for_each_entry(node, trig_list, list) {
struct iwl_fw_ini_trigger_tlv *trig = (void *)node->tlv.data;
struct iwl_dbg_tlv_timer_node *timer_node;
u32 occur = le32_to_cpu(trig->occurrences), collect_interval;
u32 min_interval = 100;
if (!occur)
continue;
/* make sure there is at least one dword of data for the
* interval value
*/
if (le32_to_cpu(node->tlv.length) <
sizeof(*trig) + sizeof(__le32)) {
IWL_ERR(fwrt,
"WRT: Invalid periodic trigger data was not given\n");
continue;
}
if (le32_to_cpu(trig->data[0]) < min_interval) {
IWL_WARN(fwrt,
"WRT: Override min interval from %u to %u msec\n",
le32_to_cpu(trig->data[0]), min_interval);
trig->data[0] = cpu_to_le32(min_interval);
}
collect_interval = le32_to_cpu(trig->data[0]);
timer_node = kzalloc(sizeof(*timer_node), GFP_KERNEL);
if (!timer_node) {
IWL_ERR(fwrt,
"WRT: Failed to allocate periodic trigger\n");
continue;
}
timer_node->fwrt = fwrt;
timer_node->tlv = &node->tlv;
timer_setup(&timer_node->timer,
iwl_dbg_tlv_periodic_trig_handler, 0);
list_add_tail(&timer_node->list,
&fwrt->trans->dbg.periodic_trig_list);
IWL_DEBUG_FW(fwrt, "WRT: Enabling periodic trigger\n");
mod_timer(&timer_node->timer,
jiffies + msecs_to_jiffies(collect_interval));
}
}
static bool is_trig_data_contained(struct iwl_ucode_tlv *new,
struct iwl_ucode_tlv *old)
{
@ -936,6 +1035,10 @@ void iwl_dbg_tlv_time_point(struct iwl_fw_runtime *fwrt,
iwl_dbg_tlv_send_hcmds(fwrt, hcmd_list);
iwl_dbg_tlv_tp_trigger(fwrt, trig_list, tp_data, NULL);
break;
case IWL_FW_INI_TIME_POINT_PERIODIC:
iwl_dbg_tlv_set_periodic_trigs(fwrt);
iwl_dbg_tlv_send_hcmds(fwrt, hcmd_list);
break;
default:
iwl_dbg_tlv_send_hcmds(fwrt, hcmd_list);
iwl_dbg_tlv_tp_trigger(fwrt, trig_list, tp_data, NULL);

2
drivers/net/wireless/intel/iwlwifi/iwl-trans.h
View File

@ -724,6 +724,7 @@ struct iwl_self_init_dram {
* @active_regions: active regions
* @debug_info_tlv_list: list of debug info TLVs
* @time_point: array of debug time points
* @periodic_trig_list: periodic triggers list
* @domains_bitmap: bitmap of active domains other than
* &IWL_FW_INI_DOMAIN_ALWAYS_ON
*/
@ -754,6 +755,7 @@ struct iwl_trans_debug {
struct list_head debug_info_tlv_list;
struct iwl_dbg_tlv_time_point_data
time_point[IWL_FW_INI_TIME_POINT_NUM];
struct list_head periodic_trig_list;
u32 domains_bitmap;
};