wifi: iwlwifi: mvm: remove HT greenfield support

No hardware that uses iwlmvm actually supports HT greenfield.
Remove the support and then clean up the v1 rate API by doing
a conversion to v2 rate API, the only thing v1 covered that
couldn't be done in v2 was HT greenfield.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250504132447.805ec090c61f.Iafd87f62ceb463b72f861a5348078999dcaace92@changeid

4 files changed, 5 insertions, 36 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index d9163dc9c129..e56a967962dd 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -1801,9 +1801,6 @@ int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags,
 void iwl_mvm_hwrate_to_tx_rate(u32 rate_n_flags,
 			       enum nl80211_band band,
 			       struct ieee80211_tx_rate *r);
-void iwl_mvm_hwrate_to_tx_rate_v1(u32 rate_n_flags,
-				  enum nl80211_band band,
-				  struct ieee80211_tx_rate *r);
 u8 iwl_mvm_mac80211_idx_to_hwrate(const struct iwl_fw *fw, int rate_idx);
 u8 iwl_mvm_mac80211_ac_to_ucode_ac(enum ieee80211_ac_numbers ac);
 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
index c2729dab8e79..50496edf41f8 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
@@ -2697,8 +2697,8 @@ static void rs_drv_get_rate(void *mvm_r, struct ieee80211_sta *sta,
 	lq_sta = mvm_sta;
 
 	spin_lock_bh(&lq_sta->pers.lock);
-	iwl_mvm_hwrate_to_tx_rate_v1(lq_sta->last_rate_n_flags,
-				     info->band, &info->control.rates[0]);
+	iwl_mvm_hwrate_to_tx_rate(iwl_new_rate_from_v1(lq_sta->last_rate_n_flags),
+				  info->band, &info->control.rates[0]);
 	info->control.rates[0].count = 1;
 
 	/* Report the optimal rate based on rssi and STA caps if we haven't
@@ -2708,8 +2708,9 @@ static void rs_drv_get_rate(void *mvm_r, struct ieee80211_sta *sta,
 		optimal_rate = rs_get_optimal_rate(mvm, lq_sta);
 		last_ucode_rate = ucode_rate_from_rs_rate(mvm,
 							  optimal_rate);
-		iwl_mvm_hwrate_to_tx_rate_v1(last_ucode_rate, info->band,
-					     &txrc->reported_rate);
+		last_ucode_rate = iwl_new_rate_from_v1(last_ucode_rate);
+		iwl_mvm_hwrate_to_tx_rate(last_ucode_rate, info->band,
+					  &txrc->reported_rate);
 		txrc->reported_rate.count = 1;
 	}
 	spin_unlock_bh(&lq_sta->pers.lock);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rx.c b/drivers/net/wireless/intel/iwlwifi/mvm/rx.c
index a5cd0fd7a11a..8eb0aa448c85 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rx.c
@@ -490,8 +490,6 @@ void iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct napi_struct *napi,
 	if (!(rate_n_flags & RATE_MCS_CCK_MSK_V1) &&
 	    rate_n_flags & RATE_MCS_SGI_MSK_V1)
 		rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
-	if (rate_n_flags & RATE_HT_MCS_GF_MSK)
-		rx_status->enc_flags |= RX_ENC_FLAG_HT_GF;
 	if (rate_n_flags & RATE_MCS_LDPC_MSK_V1)
 		rx_status->enc_flags |= RX_ENC_FLAG_LDPC;
 	if (rate_n_flags & RATE_MCS_HT_MSK_V1) {
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index a9b2b846ab37..1da0a829f529 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -1500,33 +1500,6 @@ void iwl_mvm_hwrate_to_tx_rate(u32 rate_n_flags,
 	}
 }
 
-void iwl_mvm_hwrate_to_tx_rate_v1(u32 rate_n_flags,
-				  enum nl80211_band band,
-				  struct ieee80211_tx_rate *r)
-{
-	if (rate_n_flags & RATE_HT_MCS_GF_MSK)
-		r->flags |= IEEE80211_TX_RC_GREEN_FIELD;
-
-	r->flags |=
-		iwl_mvm_get_hwrate_chan_width(rate_n_flags &
-					      RATE_MCS_CHAN_WIDTH_MSK_V1);
-
-	if (rate_n_flags & RATE_MCS_SGI_MSK_V1)
-		r->flags |= IEEE80211_TX_RC_SHORT_GI;
-	if (rate_n_flags & RATE_MCS_HT_MSK_V1) {
-		r->flags |= IEEE80211_TX_RC_MCS;
-		r->idx = rate_n_flags & RATE_HT_MCS_INDEX_MSK_V1;
-	} else if (rate_n_flags & RATE_MCS_VHT_MSK_V1) {
-		ieee80211_rate_set_vht(
-			r, rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK,
-			FIELD_GET(RATE_MCS_NSS_MSK, rate_n_flags) + 1);
-		r->flags |= IEEE80211_TX_RC_VHT_MCS;
-	} else {
-		r->idx = iwl_mvm_legacy_rate_to_mac80211_idx(rate_n_flags,
-							     band);
-	}
-}
-
 /*
  * translate ucode response to mac80211 tx status control values
  */