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iwlwifi: mvm: enable low latency for soft ap

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Enable low latency for softAP in all modes (standalone, SCM
and DCM).
This is in order to minimize the time the softAP leaves the channel for
other operations

Signed-off-by: Tova Mussai <tova.mussai@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Tova Mussai
2018-07-02 09:08:29 +03:00
committed by Luca Coelho
parent 8954e1eb22
commit 4724274410
4 changed files with 43 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
View File

@@ -1299,10 +1299,11 @@ static ssize_t iwl_dbgfs_low_latency_read(struct file *file,
int len;
len = scnprintf(buf, sizeof(buf) - 1,
"traffic=%d\ndbgfs=%d\nvcmd=%d\n",
"traffic=%d\ndbgfs=%d\nvcmd=%d\nvif_type=%d\n",
!!(mvmvif->low_latency & LOW_LATENCY_TRAFFIC),
!!(mvmvif->low_latency & LOW_LATENCY_DEBUGFS),
!!(mvmvif->low_latency & LOW_LATENCY_VCMD));
!!(mvmvif->low_latency & LOW_LATENCY_VCMD),
!!(mvmvif->low_latency & LOW_LATENCY_VIF_TYPE));
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}

12
drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
View File

@@ -2379,6 +2379,12 @@ static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
/* must be set before quota calculations */
mvmvif->ap_ibss_active = true;
if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
iwl_mvm_vif_set_low_latency(mvmvif, true,
LOW_LATENCY_VIF_TYPE);
iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id);
}
/* power updated needs to be done before quotas */
iwl_mvm_power_update_mac(mvm);
@@ -2441,6 +2447,12 @@ static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
mvmvif->ap_ibss_active = false;
mvm->ap_last_beacon_gp2 = 0;
if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
iwl_mvm_vif_set_low_latency(mvmvif, false,
LOW_LATENCY_VIF_TYPE);
iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id);
}
iwl_mvm_bt_coex_vif_change(mvm);
iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);

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

@@ -303,11 +303,13 @@ enum iwl_bt_force_ant_mode {
* @LOW_LATENCY_TRAFFIC: indicates low latency traffic was detected
* @LOW_LATENCY_DEBUGFS: low latency mode set from debugfs
* @LOW_LATENCY_VCMD: low latency mode set from vendor command
* @LOW_LATENCY_VIF_TYPE: low latency mode set because of vif type (ap)
*/
enum iwl_mvm_low_latency_cause {
LOW_LATENCY_TRAFFIC = BIT(0),
LOW_LATENCY_DEBUGFS = BIT(1),
LOW_LATENCY_VCMD = BIT(2),
LOW_LATENCY_VIF_TYPE = BIT(3),
};
/**
@@ -1845,6 +1847,8 @@ int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
/* get SystemLowLatencyMode - only needed for beacon threshold? */
bool iwl_mvm_low_latency(struct iwl_mvm *mvm);
bool iwl_mvm_low_latency_band(struct iwl_mvm *mvm, enum nl80211_band band);
void iwl_mvm_send_low_latency_cmd(struct iwl_mvm *mvm, bool low_latency,
u16 mac_id);
/* get VMACLowLatencyMode */
static inline bool iwl_mvm_vif_low_latency(struct iwl_mvm_vif *mvmvif)

42
drivers/net/wireless/intel/iwlwifi/mvm/utils.c
View File

@@ -764,6 +764,29 @@ bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm)
return result;
}
void iwl_mvm_send_low_latency_cmd(struct iwl_mvm *mvm,
bool low_latency, u16 mac_id)
{
struct iwl_mac_low_latency_cmd cmd = {
.mac_id = cpu_to_le32(mac_id)
};
if (!fw_has_capa(&mvm->fw->ucode_capa,
IWL_UCODE_TLV_CAPA_DYNAMIC_QUOTA))
return;
if (low_latency) {
/* currently we don't care about the direction */
cmd.low_latency_rx = 1;
cmd.low_latency_tx = 1;
}
if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(LOW_LATENCY_CMD,
MAC_CONF_GROUP, 0),
0, sizeof(cmd), &cmd))
IWL_ERR(mvm, "Failed to send low latency command\n");
}
int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
bool low_latency,
enum iwl_mvm_low_latency_cause cause)
@@ -782,24 +805,7 @@ int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
if (low_latency == prev)
return 0;
if (fw_has_capa(&mvm->fw->ucode_capa,
IWL_UCODE_TLV_CAPA_DYNAMIC_QUOTA)) {
struct iwl_mac_low_latency_cmd cmd = {
.mac_id = cpu_to_le32(mvmvif->id)
};
if (low_latency) {
/* currently we don't care about the direction */
cmd.low_latency_rx = 1;
cmd.low_latency_tx = 1;
}
res = iwl_mvm_send_cmd_pdu(mvm,
iwl_cmd_id(LOW_LATENCY_CMD,
MAC_CONF_GROUP, 0),
0, sizeof(cmd), &cmd);
if (res)
IWL_ERR(mvm, "Failed to send low latency command\n");
}
iwl_mvm_send_low_latency_cmd(mvm, low_latency, mvmvif->id);
res = iwl_mvm_update_quotas(mvm, false, NULL);
if (res)