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Second batch of fixes intended for 4.15. 

* One fix in rate-scaling;
 * One fix for the TX queue hang detection for AP/GO modes;
 * Fix the TX queue hang timeout used in monitor interfaces;
 * Fix packet injection;
 * Remove a wrong error message when dumping PCI registers;
 * Fix race condition with RF-kill;
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Merge tag 'iwlwifi-for-kalle-2017-11-28' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes

Second batch of fixes intended for 4.15.

* One fix in rate-scaling;
* One fix for the TX queue hang detection for AP/GO modes;
* Fix the TX queue hang timeout used in monitor interfaces;
* Fix packet injection;
* Remove a wrong error message when dumping PCI registers;
* Fix race condition with RF-kill;
This commit is contained in:
Kalle Valo 2017-12-02 15:01:45 +02:00
parent f859b4af1c 0232d2cd7a
commit e4875470a7
11 changed files with 80 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/wireless/intel/iwlwifi/fw/api/txq.h
View File

@ -68,6 +68,9 @@
* @IWL_MVM_DQA_CMD_QUEUE: a queue reserved for sending HCMDs to the FW
* @IWL_MVM_DQA_AUX_QUEUE: a queue reserved for aux frames
* @IWL_MVM_DQA_P2P_DEVICE_QUEUE: a queue reserved for P2P device frames
* @IWL_MVM_DQA_INJECT_MONITOR_QUEUE: a queue reserved for injection using
* monitor mode. Note this queue is the same as the queue for P2P device
* but we can't have active monitor mode along with P2P device anyway.
* @IWL_MVM_DQA_GCAST_QUEUE: a queue reserved for P2P GO/SoftAP GCAST frames
* @IWL_MVM_DQA_BSS_CLIENT_QUEUE: a queue reserved for BSS activity, to ensure
* that we are never left without the possibility to connect to an AP.
@ -87,6 +90,7 @@ enum iwl_mvm_dqa_txq {
IWL_MVM_DQA_CMD_QUEUE = 0,
IWL_MVM_DQA_AUX_QUEUE = 1,
IWL_MVM_DQA_P2P_DEVICE_QUEUE = 2,
IWL_MVM_DQA_INJECT_MONITOR_QUEUE = 2,
IWL_MVM_DQA_GCAST_QUEUE = 3,
IWL_MVM_DQA_BSS_CLIENT_QUEUE = 4,
IWL_MVM_DQA_MIN_MGMT_QUEUE = 5,

2
drivers/net/wireless/intel/iwlwifi/fw/dbg.h
View File

@ -209,8 +209,6 @@ static inline void iwl_fw_dbg_stop_recording(struct iwl_fw_runtime *fwrt)
static inline void iwl_fw_dump_conf_clear(struct iwl_fw_runtime *fwrt)
{
iwl_fw_dbg_stop_recording(fwrt);
fwrt->dump.conf = FW_DBG_INVALID;
}

2
drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
View File

@ -787,7 +787,7 @@ static int iwl_mvm_mac_ctxt_cmd_listener(struct iwl_mvm *mvm,
u32 action)
{
struct iwl_mac_ctx_cmd cmd = {};
u32 tfd_queue_msk = 0;
u32 tfd_queue_msk = BIT(mvm->snif_queue);
int ret;
WARN_ON(vif->type != NL80211_IFTYPE_MONITOR);

1
drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
View File

@ -972,6 +972,7 @@ struct iwl_mvm {
/* Tx queues */
u16 aux_queue;
u16 snif_queue;
u16 probe_queue;
u16 p2p_dev_queue;

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

@ -624,6 +624,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0;
mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE;
mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE;
mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE;

4
drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
View File

@ -213,6 +213,7 @@ static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm,
struct ieee80211_rx_status *rx_status)
{
int energy_a, energy_b, max_energy;
u32 rate_flags = le32_to_cpu(desc->rate_n_flags);
energy_a = desc->energy_a;
energy_a = energy_a ? -energy_a : S8_MIN;
@ -224,7 +225,8 @@ static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm,
energy_a, energy_b, max_energy);
rx_status->signal = max_energy;
rx_status->chains = 0; /* TODO: phy info */
rx_status->chains =
(rate_flags & RATE_MCS_ANT_AB_MSK) >> RATE_MCS_ANT_POS;
rx_status->chain_signal[0] = energy_a;
rx_status->chain_signal[1] = energy_b;
rx_status->chain_signal[2] = S8_MIN;

53
drivers/net/wireless/intel/iwlwifi/mvm/sta.c
View File

@ -1709,29 +1709,29 @@ void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta)
sta->sta_id = IWL_MVM_INVALID_STA;
}
static void iwl_mvm_enable_aux_queue(struct iwl_mvm *mvm)
static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 *queue,
u8 sta_id, u8 fifo)
{
unsigned int wdg_timeout = iwlmvm_mod_params.tfd_q_hang_detect ?
mvm->cfg->base_params->wd_timeout :
IWL_WATCHDOG_DISABLED;
if (iwl_mvm_has_new_tx_api(mvm)) {
int queue = iwl_mvm_tvqm_enable_txq(mvm, mvm->aux_queue,
mvm->aux_sta.sta_id,
IWL_MAX_TID_COUNT,
wdg_timeout);
mvm->aux_queue = queue;
int tvqm_queue =
iwl_mvm_tvqm_enable_txq(mvm, *queue, sta_id,
IWL_MAX_TID_COUNT,
wdg_timeout);
*queue = tvqm_queue;
} else {
struct iwl_trans_txq_scd_cfg cfg = {
.fifo = IWL_MVM_TX_FIFO_MCAST,
.sta_id = mvm->aux_sta.sta_id,
.fifo = fifo,
.sta_id = sta_id,
.tid = IWL_MAX_TID_COUNT,
.aggregate = false,
.frame_limit = IWL_FRAME_LIMIT,
};
iwl_mvm_enable_txq(mvm, mvm->aux_queue, mvm->aux_queue, 0, &cfg,
wdg_timeout);
iwl_mvm_enable_txq(mvm, *queue, *queue, 0, &cfg, wdg_timeout);
}
}
@ -1750,7 +1750,9 @@ int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm)
/* Map Aux queue to fifo - needs to happen before adding Aux station */
if (!iwl_mvm_has_new_tx_api(mvm))
iwl_mvm_enable_aux_queue(mvm);
iwl_mvm_enable_aux_snif_queue(mvm, &mvm->aux_queue,
mvm->aux_sta.sta_id,
IWL_MVM_TX_FIFO_MCAST);
ret = iwl_mvm_add_int_sta_common(mvm, &mvm->aux_sta, NULL,
MAC_INDEX_AUX, 0);
@ -1764,7 +1766,9 @@ int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm)
* to firmware so enable queue here - after the station was added
*/
if (iwl_mvm_has_new_tx_api(mvm))
iwl_mvm_enable_aux_queue(mvm);
iwl_mvm_enable_aux_snif_queue(mvm, &mvm->aux_queue,
mvm->aux_sta.sta_id,
IWL_MVM_TX_FIFO_MCAST);
return 0;
}
@ -1772,10 +1776,31 @@ int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm)
int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
int ret;
lockdep_assert_held(&mvm->mutex);
return iwl_mvm_add_int_sta_common(mvm, &mvm->snif_sta, vif->addr,
/* Map snif queue to fifo - must happen before adding snif station */
if (!iwl_mvm_has_new_tx_api(mvm))
iwl_mvm_enable_aux_snif_queue(mvm, &mvm->snif_queue,
mvm->snif_sta.sta_id,
IWL_MVM_TX_FIFO_BE);
ret = iwl_mvm_add_int_sta_common(mvm, &mvm->snif_sta, vif->addr,
mvmvif->id, 0);
if (ret)
return ret;
/*
* For 22000 firmware and on we cannot add queue to a station unknown
* to firmware so enable queue here - after the station was added
*/
if (iwl_mvm_has_new_tx_api(mvm))
iwl_mvm_enable_aux_snif_queue(mvm, &mvm->snif_queue,
mvm->snif_sta.sta_id,
IWL_MVM_TX_FIFO_BE);
return 0;
}
int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
@ -1784,6 +1809,8 @@ int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
lockdep_assert_held(&mvm->mutex);
iwl_mvm_disable_txq(mvm, mvm->snif_queue, mvm->snif_queue,
IWL_MAX_TID_COUNT, 0);
ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id);
if (ret)
IWL_WARN(mvm, "Failed sending remove station\n");

3
drivers/net/wireless/intel/iwlwifi/mvm/tx.c
View File

@ -657,7 +657,8 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb)
if (ap_sta_id != IWL_MVM_INVALID_STA)
sta_id = ap_sta_id;
} else if (info.control.vif->type == NL80211_IFTYPE_MONITOR) {
queue = mvm->aux_queue;
queue = mvm->snif_queue;
sta_id = mvm->snif_sta.sta_id;
}
}

13
drivers/net/wireless/intel/iwlwifi/mvm/utils.c
View File

@ -1134,9 +1134,18 @@ unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm,
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))
if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS)) {
/*
* We can't know when the station is asleep or awake, so we
* must disable the queue hang detection.
*/
if (fw_has_capa(&mvm->fw->ucode_capa,
IWL_UCODE_TLV_CAPA_STA_PM_NOTIF) &&
vif && vif->type == NL80211_IFTYPE_AP)
return IWL_WATCHDOG_DISABLED;
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;
@ -1163,6 +1172,8 @@ unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm,
return le32_to_cpu(txq_timer->p2p_go);
case NL80211_IFTYPE_P2P_DEVICE:
return le32_to_cpu(txq_timer->p2p_device);
case NL80211_IFTYPE_MONITOR:
return default_timeout;
default:
WARN_ON(1);
return mvm->cfg->base_params->wd_timeout;

6
drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
View File

@ -49,6 +49,7 @@
*
*****************************************************************************/
#include "iwl-trans.h"
#include "iwl-prph.h"
#include "iwl-context-info.h"
#include "internal.h"
@ -156,6 +157,11 @@ void _iwl_trans_pcie_gen2_stop_device(struct iwl_trans *trans, bool low_power)
trans_pcie->is_down = true;
/* Stop dbgc before stopping device */
iwl_write_prph(trans, DBGC_IN_SAMPLE, 0);
udelay(100);
iwl_write_prph(trans, DBGC_OUT_CTRL, 0);
/* tell the device to stop sending interrupts */
iwl_disable_interrupts(trans);

10
drivers/net/wireless/intel/iwlwifi/pcie/trans.c
View File

@ -166,6 +166,7 @@ static void iwl_trans_pcie_dump_regs(struct iwl_trans *trans)
print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32,
4, buf, i, 0);
}
goto out;
err_read:
print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32, 4, buf, i, 0);
@ -1226,6 +1227,15 @@ static void _iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power)
trans_pcie->is_down = true;
/* Stop dbgc before stopping device */
if (trans->cfg->device_family == IWL_DEVICE_FAMILY_7000) {
iwl_set_bits_prph(trans, MON_BUFF_SAMPLE_CTL, 0x100);
} else {
iwl_write_prph(trans, DBGC_IN_SAMPLE, 0);
udelay(100);
iwl_write_prph(trans, DBGC_OUT_CTRL, 0);
}
/* tell the device to stop sending interrupts */
iwl_disable_interrupts(trans);