iwlwifi: mvm: enable low latency for soft ap

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>

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
index 1aa6c7e930888e46593e95e4439b52c4ee370e14..e9767bbdea1ed60334bbebd9305fc3c6762826f1 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
@@ -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);
 }
 

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 505b0385d80003e546578fa2a1d8a4684ea1a9dd..5bdc638fc99981ae0aea9b0e98506fe243524a86 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -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);

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index 8a933774a934934b1e31acd97b5aa898301fd5e3..03fdc8b1892df9955d6cf8672c11e2a9d3c948dd 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -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)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
index 11730d018e20786bc65efc533ed10e3d68c99d72..3fd673128d5171b1cbe7c7f3b4cc4b00b45b39c0 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
@@ -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)