iwlwifi: mvm: always init rs_fw with 20MHz bandwidth rates

As with the non-offloaded rs case, during assoc on the ap side the phy
context is set to 20MHz until authorization of a client that supports
wider channel-widths. Support this by sending the initial
tlc_config_cmd with max supported channel width of 20MHz until
authorization succeeds.

Fixes: 6b7a5aea ("iwlwifi: mvm: always init rs with 20mhz bandwidth rates")
Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c

@@ -311,7 +311,7 @@ void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm,
 }
 
 void rs_fw_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-		     enum nl80211_band band)
+		     enum nl80211_band band, bool update)
 {
 	struct ieee80211_hw *hw = mvm->hw;
 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
@@ -320,7 +320,8 @@ void rs_fw_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	struct ieee80211_supported_band *sband;
 	struct iwl_tlc_config_cmd cfg_cmd = {
 		.sta_id = mvmsta->sta_id,
-		.max_ch_width = rs_fw_bw_from_sta_bw(sta),
+		.max_ch_width = update ?
+			rs_fw_bw_from_sta_bw(sta) : RATE_MCS_CHAN_WIDTH_20,
 		.flags = cpu_to_le16(rs_fw_set_config_flags(mvm, sta)),
 		.chains = rs_fw_set_active_chains(iwl_mvm_get_valid_tx_ant(mvm)),
 		.max_mpdu_len = cpu_to_le16(sta->max_amsdu_len),

drivers/net/wireless/intel/iwlwifi/mvm/rs.c

@@ -4099,7 +4099,7 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 			  enum nl80211_band band, bool update)
 {
 	if (iwl_mvm_has_tlc_offload(mvm))
-		rs_fw_rate_init(mvm, sta, band);
+		rs_fw_rate_init(mvm, sta, band, update);
 	else
 		rs_drv_rate_init(mvm, sta, band, update);
 }

drivers/net/wireless/intel/iwlwifi/mvm/rs.h

@@ -461,7 +461,7 @@ void rs_remove_sta_debugfs(void *mvm, void *mvm_sta);
 
 void iwl_mvm_rs_add_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta);
 void rs_fw_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-		     enum nl80211_band band);
+		     enum nl80211_band band, bool update);
 int rs_fw_tx_protection(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,
 			bool enable);
 void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm,