2024-05-27 16:17:09

by Miri Korenblit

[permalink] [raw]
Subject: [PATCH 06/20] wifi: iwlwifi: mvm: handle TPE advertised by AP

From: Johannes Berg <[email protected]>

6 GHz BSS SP client shall respect TX power limits advertised
by the AP in TPE elements, send the data to the firmware using
the AP_TX_POWER_CONSTRAINTS_CMD command, so do that.

Co-developed-by: Mukesh Sisodiya <[email protected]>
Signed-off-by: Mukesh Sisodiya <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Miri Korenblit <[email protected]>
---
.../net/wireless/intel/iwlwifi/mvm/mac80211.c | 11 ++++
.../wireless/intel/iwlwifi/mvm/mld-mac80211.c | 55 ++++++++++++++++---
drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 6 ++
3 files changed, 63 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 752fdb6a783f..88bc0baabf7e 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -2768,6 +2768,13 @@ iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm,

if (changes & BSS_CHANGED_BANDWIDTH)
iwl_mvm_update_link_smps(vif, link_conf);
+
+ if (changes & BSS_CHANGED_TPE) {
+ IWL_DEBUG_CALIB(mvm, "Changing TPE\n");
+ iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif,
+ link_conf,
+ false);
+ }
}

static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
@@ -5122,6 +5129,10 @@ static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
}

iwl_mvm_update_quotas(mvm, false, NULL);
+
+ iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif,
+ link_conf,
+ false);
}

goto out;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c
index 00433d1c8564..b2b6dbdcc44f 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c
@@ -345,6 +345,11 @@ __iwl_mvm_mld_assign_vif_chanctx(struct iwl_mvm *mvm,
rcu_read_unlock();
}

+ if (vif->type == NL80211_IFTYPE_STATION)
+ iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif,
+ link_conf,
+ false);
+
/* then activate */
ret = iwl_mvm_link_changed(mvm, vif, link_conf,
LINK_CONTEXT_MODIFY_ACTIVE |
@@ -524,9 +529,37 @@ static void iwl_mvm_mld_unassign_vif_chanctx(struct ieee80211_hw *hw,
}

static void
+iwl_mvm_tpe_sta_cmd_data(struct iwl_txpower_constraints_cmd *cmd,
+ const struct ieee80211_bss_conf *bss_info)
+{
+ u8 i;
+
+ /*
+ * NOTE: the 0 here is IEEE80211_TPE_CAT_6GHZ_DEFAULT,
+ * we fully ignore IEEE80211_TPE_CAT_6GHZ_SUBORDINATE
+ */
+
+ BUILD_BUG_ON(ARRAY_SIZE(cmd->psd_pwr) !=
+ ARRAY_SIZE(bss_info->tpe.psd_local[0].power));
+
+ /* if not valid, mac80211 puts default (max value) */
+ for (i = 0; i < ARRAY_SIZE(cmd->psd_pwr); i++)
+ cmd->psd_pwr[i] = min(bss_info->tpe.psd_local[0].power[i],
+ bss_info->tpe.psd_reg_client[0].power[i]);
+
+ BUILD_BUG_ON(ARRAY_SIZE(cmd->eirp_pwr) !=
+ ARRAY_SIZE(bss_info->tpe.max_local[0].power));
+
+ for (i = 0; i < ARRAY_SIZE(cmd->eirp_pwr); i++)
+ cmd->eirp_pwr[i] = min(bss_info->tpe.max_local[0].power[i],
+ bss_info->tpe.max_reg_client[0].power[i]);
+}
+
+void
iwl_mvm_send_ap_tx_power_constraint_cmd(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
- struct ieee80211_bss_conf *bss_conf)
+ struct ieee80211_bss_conf *bss_conf,
+ bool is_ap)
{
struct iwl_txpower_constraints_cmd cmd = {};
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
@@ -546,19 +579,22 @@ iwl_mvm_send_ap_tx_power_constraint_cmd(struct iwl_mvm *mvm,
link_info->fw_link_id == IWL_MVM_FW_LINK_ID_INVALID)
return;

- if (bss_conf->chanreq.oper.chan->band != NL80211_BAND_6GHZ ||
- bss_conf->chanreq.oper.chan->flags &
- IEEE80211_CHAN_NO_6GHZ_VLP_CLIENT)
+ if (bss_conf->chanreq.oper.chan->band != NL80211_BAND_6GHZ)
return;

cmd.link_id = cpu_to_le16(link_info->fw_link_id);
- /*
- * Currently supporting VLP Soft AP only.
- */
- cmd.ap_type = cpu_to_le16(IWL_6GHZ_AP_TYPE_VLP);
memset(cmd.psd_pwr, DEFAULT_TPE_TX_POWER, sizeof(cmd.psd_pwr));
memset(cmd.eirp_pwr, DEFAULT_TPE_TX_POWER, sizeof(cmd.eirp_pwr));

+ if (is_ap) {
+ cmd.ap_type = cpu_to_le16(IWL_6GHZ_AP_TYPE_VLP);
+ } else if (bss_conf->power_type == IEEE80211_REG_UNSET_AP) {
+ return;
+ } else {
+ cmd.ap_type = cpu_to_le16(bss_conf->power_type - 1);
+ iwl_mvm_tpe_sta_cmd_data(&cmd, bss_conf);
+ }
+
ret = iwl_mvm_send_cmd_pdu(mvm,
WIDE_ID(PHY_OPS_GROUP,
AP_TX_POWER_CONSTRAINTS_CMD),
@@ -580,7 +616,8 @@ static int iwl_mvm_mld_start_ap_ibss(struct ieee80211_hw *hw,
guard(mvm)(mvm);

if (vif->type == NL80211_IFTYPE_AP)
- iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, link_conf);
+ iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif,
+ link_conf, true);

/* Send the beacon template */
ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index f3d9b8355c6b..9b939225990a 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -2962,4 +2962,10 @@ iwl_mvm_bt_coex_calculate_esr_mode(struct iwl_mvm *mvm,
bool primary);
int iwl_mvm_esr_non_bss_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
unsigned int link_id, bool active);
+
+void
+iwl_mvm_send_ap_tx_power_constraint_cmd(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *bss_conf,
+ bool is_ap);
#endif /* __IWL_MVM_H__ */
--
2.34.1