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iwlwifi: mvm: allow to configure the timeout for the Tx queues

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Sometimes we will want to configure the timeouts for the
Tx queues based on the vif type. Allow to do that using the
trigger mechanism.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Emmanuel Grumbach 2015-03-19 20:04:51 +02:00
parent 5dd9c68a85
commit 5d42e7b2a3
7 changed files with 80 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h
View File

@ -250,6 +250,8 @@ iwl_fw_error_next_data(struct iwl_fw_error_dump_data *data)
* @FW_DBG_TRIGGER_STATS: trigger log collection upon statistics threshold.
* @FW_DBG_TRIGGER_RSSI: trigger log collection when the rssi of the beacon
* goes below a threshold.
* @FW_DBG_TRIGGER_TXQ_TIMERS: configures the timers for the Tx queue hang
* detection.
*/
enum iwl_fw_dbg_trigger {
FW_DBG_TRIGGER_INVALID = 0,
@ -261,6 +263,7 @@ enum iwl_fw_dbg_trigger {
FW_DB_TRIGGER_RESERVED,
FW_DBG_TRIGGER_STATS,
FW_DBG_TRIGGER_RSSI,
FW_DBG_TRIGGER_TXQ_TIMERS,
/* must be last */
FW_DBG_TRIGGER_MAX,

23
drivers/net/wireless/iwlwifi/iwl-fw-file.h
View File

@ -578,6 +578,29 @@ struct iwl_fw_dbg_trigger_low_rssi {
__le32 rssi;
} __packed;
/**
* struct iwl_fw_dbg_trigger_txq_timer - configures the Tx queue's timer
* @command_queue: timeout for the command queue in ms
* @bss: timeout for the queues of a BSS (except for TDLS queues) in ms
* @softap: timeout for the queues of a softAP in ms
* @p2p_go: timeout for the queues of a P2P GO in ms
* @p2p_client: timeout for the queues of a P2P client in ms
* @p2p_device: timeout for the queues of a P2P device in ms
* @ibss: timeout for the queues of an IBSS in ms
* @tdls: timeout for the queues of a TDLS station in ms
*/
struct iwl_fw_dbg_trigger_txq_timer {
__le32 command_queue;
__le32 bss;
__le32 softap;
__le32 p2p_go;
__le32 p2p_client;
__le32 p2p_device;
__le32 ibss;
__le32 tdls;
__le32 reserved[4];
} __packed;
/**
* struct iwl_fw_dbg_conf_tlv - a TLV that describes a debug configuration.
* @id: conf id

5
drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
View File

@ -470,9 +470,8 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm,
int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
{
unsigned int wdg_timeout = iwlmvm_mod_params.tfd_q_hang_detect ?
mvm->cfg->base_params->wd_timeout :
IWL_WATCHDOG_DISABLED;
unsigned int wdg_timeout =
iwl_mvm_get_wd_timeout(mvm, vif, false, false);
u32 ac;
int ret;

4
drivers/net/wireless/iwlwifi/mvm/mvm.h
View File

@ -1480,7 +1480,9 @@ void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm);
int iwl_mvm_fw_dbg_collect_trig(struct iwl_mvm *mvm,
struct iwl_fw_dbg_trigger_tlv *trigger,
const char *str, size_t len);
unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
bool tdls, bool cmd_q);
static inline bool
iwl_fw_dbg_trigger_vif_match(struct iwl_fw_dbg_trigger_tlv *trig,
struct ieee80211_vif *vif)

3
drivers/net/wireless/iwlwifi/mvm/ops.c
View File

@ -488,8 +488,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
/* Set a short watchdog for the command queue */
trans_cfg.cmd_q_wdg_timeout =
iwlmvm_mod_params.tfd_q_hang_detect ? IWL_DEF_WD_TIMEOUT :
IWL_WATCHDOG_DISABLED;
iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
snprintf(mvm->hw->wiphy->fw_version,
sizeof(mvm->hw->wiphy->fw_version),

10
drivers/net/wireless/iwlwifi/mvm/sta.c
View File

@ -209,9 +209,8 @@ static int iwl_mvm_tdls_sta_init(struct iwl_mvm *mvm,
{
unsigned long used_hw_queues;
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
unsigned int wdg_timeout = iwlmvm_mod_params.tfd_q_hang_detect ?
mvm->cfg->base_params->wd_timeout :
IWL_WATCHDOG_DISABLED;
unsigned int wdg_timeout =
iwl_mvm_get_wd_timeout(mvm, NULL, true, false);
u32 ac;
lockdep_assert_held(&mvm->mutex);
@ -981,9 +980,8 @@ int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
{
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
unsigned int wdg_timeout = iwlmvm_mod_params.tfd_q_hang_detect ?
mvm->cfg->base_params->wd_timeout :
IWL_WATCHDOG_DISABLED;
unsigned int wdg_timeout =
iwl_mvm_get_wd_timeout(mvm, vif, sta->tdls, false);
int queue, fifo, ret;
u16 ssn;

44
drivers/net/wireless/iwlwifi/mvm/utils.c
View File

@ -921,3 +921,47 @@ struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm)
return bss_iter_data.vif;
}
unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
bool tdls, bool cmd_q)
{
struct iwl_fw_dbg_trigger_tlv *trigger;
struct iwl_fw_dbg_trigger_txq_timer *txq_timer;
unsigned int default_timeout =
cmd_q ? IWL_DEF_WD_TIMEOUT : mvm->cfg->base_params->wd_timeout;
if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS))
return iwlmvm_mod_params.tfd_q_hang_detect ?
default_timeout : IWL_WATCHDOG_DISABLED;
trigger = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS);
txq_timer = (void *)trigger->data;
if (tdls)
return le32_to_cpu(txq_timer->tdls);
if (cmd_q)
return le32_to_cpu(txq_timer->command_queue);
if (WARN_ON(!vif))
return default_timeout;
switch (ieee80211_vif_type_p2p(vif)) {
case NL80211_IFTYPE_ADHOC:
return le32_to_cpu(txq_timer->ibss);
case NL80211_IFTYPE_STATION:
return le32_to_cpu(txq_timer->bss);
case NL80211_IFTYPE_AP:
return le32_to_cpu(txq_timer->softap);
case NL80211_IFTYPE_P2P_CLIENT:
return le32_to_cpu(txq_timer->p2p_client);
case NL80211_IFTYPE_P2P_GO:
return le32_to_cpu(txq_timer->p2p_go);
case NL80211_IFTYPE_P2P_DEVICE:
return le32_to_cpu(txq_timer->p2p_device);
default:
WARN_ON(1);
return mvm->cfg->base_params->wd_timeout;
}
}